FORM 2
THE PATENTS ACT, 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10; rule 13]
TITLE: “A PRECLEANER ASSEMBLY FOR AN AIR INTAKE SYSTEM OF A
VEHICLE”
Name and Address of the Applicant:
TATA MOTORS LIMITED of Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai - 400 001 Maharashtra, India.
Nationality: Indian
The following specification particularly describes the invention and the manner in which it is to be performed.

TECHNICAL FIELD
[001] The present disclosure relates to the field of automobiles. Particularly, but not exclusively, the present disclosure relates to an air intake system of a vehicle. Further, embodiments of the present disclosure disclose a precleaner assembly of the air intake system for the engine.
BACKGROUND OF THE DISCLOSURE
[002] Generally, vehicles include a drive train with a prime mover, such as an internal combustion engine to deliver necessary power for driving the vehicles. The internal combustion engines include a number of cylinders, and each cylinder defines a combustion chamber. The combustion chamber is adapted to receive air and at least one fuel such as, petrol, diesel, gasoline, hydrogen, and among others, for combustion within the combustion chamber. For supplying of air to the combustion chamber, the vehicle includes an air intake system configured to draw air from surroundings and then supply such air to the engine. The air intake system, in general, may include a snorkel adapted to intake air into the vehicle, and an airfilter to filter such intake air. Based on such intake of air into the vehicle, performance of the engine may vary. For instance, in case the intake air consists of larger dust particles and/or water droplets, such dust particles and water may clog the airfilter, which generally cause “choking” of the engine. Such choking significantly reduces lifespan of the airfilter, thereby requiring frequent servicing or replacement of the airfilter.
[003] With the advent of technology, to improve the lifespan and efficiency of the airfilter (also referred as “air filter”) and the engine, various attempts have been made to modify the airfilter configuration. One such modification in conventional airfilter system may be by including a precleaner between the snorkel and the airfilter. The precleaner is adapted to remove heavy dust particles and water droplets from the intake air by causing a vortex flow within a housing of the precleaner. To cater such efficiency, the conventional precleaner include a plurality of blades that are rigidly connected to the housing of the precleaner, where such blades create resistance for flow of the intake air which may affect performance of the engine. For instance, during travel of the vehicle in cruise mode or during running on a highway, the plurality of blades in the precleaner tends to resist flow of the intake air into the vehicle, which may affect quantity of air being timely delivered to the engine for producing necessary power to the vehicle. Such resistance to the airflow may affect overall performance of the engine itself.

[004] The present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the aspect of the precleaner of the vehicle.
SUMMARY OF THE DISCLOSURE
[005] One or more shortcomings of the conventional air intake system are overcome by a precleaner assembly for an air intake system of a vehicle, as described. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.
[006] In a non-limiting embodiment of the disclosure, a precleaner assembly for an air intake system of a vehicle is disclosed. The precleaner assembly includes a housing defined with an inlet and an outlet for passage of a fluid. The precleaner assembly further includes a shaft pivotably disposed along a central axis of the housing. Furthermore, the precleaner assembly includes a plurality of blades radially connected to the shaft and positioned proximal to the inlet. The plurality of blades is adapted to operate between a first position and a second position. In addition, the precleaner assembly includes an actuating mechanism operatively coupled to the shaft. The actuating mechanism is configured to pivot the shaft to operatively tilt the plurality of blades from the first position and the second position.
[007] In an embodiment, the plurality of blades in the first position are configured to reduce area for flow of intake air at the inlet of the housing.
[008] In an embodiment, the plurality of blades in the second position are configured to increase area for flow of intake air at the inlet of the housing.
[009] In an embodiment, the plurality of blades is defined with a profile such that, flow of intake air over the plurality of blades generates a vortex flow.
[0010] In an embodiment, the precleaner assembly comprises a flange portion extending an inner periphery at the outlet of the housing, wherein the flange portion is configured to collect at least one impurity from the vortex flow generated by the plurality of blades.
[0011] In an embodiment, the precleaner assembly comprises at least one sensor positioned proximal to the inlet, wherein the at least one sensor is configured to sense the amount of at least one impurity in the intake air.

[0012] In an embodiment, the precleaner assembly comprises a display positioned proximal to a driver of the vehicle, to indicate the amount of at least one impurity in the intake air sensed by the sensor.
[0013] In an embodiment, the precleaner assembly comprises a control unit communicatively coupled to the at least one sensor and the display unit. The control unit is configured to receive at least one input signal from the least one sensor corresponding to the amount of at least one impurity in the intake air at the inlet of the housing. The control unit is further configured to generate at least one display signal to the display unit for displaying the amount of at least one impurity in the intake air at the inlet. Furthermore, the control unit is configured to actuate the actuating mechanism to tilt the plurality of blades when an actuation signal is received by the driver.
[0014] In an embodiment, the actuating mechanism includes a pinion coupled at an end of the shaft and positioned proximal to the outlet of the housing. The shaft is pivotable on pivoting of the pinion. The actuating mechanism further includes an actuating lever displaceably insertable into the housing. The actuating lever is adapted to extend across the pinion and the shaft to be displaceable between a first condition and a second condition. The actuating lever is defined with a plurality of teeth to mesh with the pinion, to pivot the shaft on displacement. Furthermore, the actuating mechanism includes at least one actuator connectable at an end of the actuating lever. The at least one actuator is configured to displace the actuating lever relative to the housing.
[0015] In another non-limiting embodiment of the disclosure, an air intake system of a vehicle is disclosed. The air intake system includes an air feeder positioned on a vehicle body. The air feeder is configured to intake air from outside of the vehicle. The air intake system further includes a precleaner assembly fluidly coupled to the air feeder. The precleaner assembly includes a housing defined with an inlet and an outlet for passage of a fluid. The precleaner assembly further includes a shaft pivotably disposed along a central axis of the housing. Furthermore, the precleaner assembly includes a plurality of blades radially connected to the shaft and positioned proximal to the inlet. The plurality of blades is adapted to operate between a first position and a second position. In addition, the precleaner assembly includes an actuating mechanism operatively coupled to the shaft. The actuating mechanism is configured to pivot the shaft about central axis of the housing to operatively tilt the plurality of blades from the first position and the second position. Moreover, the air intake system includes a duct radially connected to and positioned proximal to the outlet of the housing. The duct is configured to

remove at least one impurity being collected in the housing. Also, the air intake system includes an airfilter fluidly coupled to the precleaner assembly. The airfilter is configured to filter the intake air.
[0016] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
[0017] The novel features and characteristics of the disclosure are set forth in the appended description. The disclosure itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:
[0018] Figure 1 illustrates a perspective view of an air intake system of a vehicle, according to an embodiment of the present disclosure.
[0019] Figure 2 illustrates a sectional view of a precleaner assembly for the air intake system of the vehicle, according to an embodiment of the present disclosure.
[0020] Figures 3a-3c illustrates a top view of the precleaner assembly of Figure 2, with a plurality of blades at different pivotal positions, according to an embodiment of the present disclosure.
[0021] Figures 4a and 4b illustrates a top view of the precleaner assembly of Figure 2, with the plurality of blades coupled to an actuating lever and a pinon arrangement, according to an embodiment of the present disclosure.
[0022] Figures 4c and 4d illustrates an actuating mechanism for tilting the plurality of blades of Figure 4a and 4b, according to an embodiment of the present disclosure.
[0023] Figure 5a and 5b illustrates a block diagram of functioning of a control unit in the air intake system, according to an embodiment of the present disclosure.

[0024] The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the precleaner assembly and the air intake system illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION
[0025] While the embodiments in the disclosure are subject to various modifications and alternative forms, specific embodiments thereof have been shown by the way of example in the figures and will be described below. It should be understood, however that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure.
[0026] It is to be noted that a person skilled in the art would be motivated from the present disclosure and modify various features of the precleaner assembly or the air intake system, without departing from the scope of the disclosure. Therefore, such modifications are considered to be part of the disclosure. Accordingly, the drawings show only those specific details that are pertinent to understand the embodiments of the present disclosure, so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skilled in the art having benefit of the description herein. Also, the precleaner assembly and the air intake system of the present disclosure may be employed in any kind of vehicles including commercial vehicles, passenger vehicles, two-wheeled vehicles, three-wheeled vehicles, off highway vehicles, mining machinery, earth moving machinery, and among others. However, neither the vehicle nor complete engine of the vehicle is illustrated in the drawings of the disclosure is for the purpose of simplicity.
[0027] The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover non-exclusive inclusions, such that a device, assembly, mechanism, system, and method that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system, or assembly, or device. In other words, one or more elements in a system/assembly proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the assembly or system.
[0028] Embodiments of the present disclosure discloses a precleaner assembly. The precleaner assembly includes a housing defined with an inlet and an outlet for passage of a fluid. The

precleaner assembly further includes a shaft pivotably disposed along a central axis of the housing. Furthermore, the precleaner assembly includes a plurality of blades radially connected to the shaft and positioned proximal to the inlet. The plurality of blades is adapted to operate between a first position and a second position. In addition, the precleaner assembly includes an actuating mechanism operatively coupled to the shaft. The actuating mechanism is configured to pivot the shaft to operatively tilt the plurality of blades from the first position and the second position. Such precleaner assembly provides minimum resistance to the intake airflow when the intake air contains trivial amount of at least one impurity, thereby improving overall performance of the engine.
[0029] The following paragraphs describe the present disclosure with reference to Figures. 1 to 5b. In the figures, the same element or elements which have similar functions are indicated by the same reference signs. With general reference to the drawings, the precleaner assembly of a vehicle is illustrated and generally identified with reference numeral (103). The precleaner assembly (103) may be operatively associated with an air intake system identified with reference numeral (100) of a vehicle [not shown]. It will be understood that the teachings of the present disclosure are not limited to any particular vehicle and may be employed in a myriad of category of vehicles including, but not limited to, commercial vehicles, passengers, vehicles, and among others.
[0030] As illustrated in Figure 1, the air intake system (100) includes an air feeder (101) positioned on a vehicle body (not shown in Figures). The air feeder (101) is configured to intake air from outside (i.e., ambient air in surrounding) of the vehicle. The air feeder (101) may also be configured to prevent contaminants such as, but not limited to, tree leaves, rainwater, and among others entering into the air intake system (100). In an embodiment, the air feeder (101) may be a snorkel. The air intake system (100) further includes a precleaner assembly (103) fluidly coupled to the air feeder (101). The precleaner assembly (103) is configured to pre-clean the intake air received from the air feeder (101) entering through a primary duct (102), by generating a vortex flow to separate at least one impurity (i.e., with respect to one categorical type of impurity) from the intake air. The at least one impurity may be dust particles, water droplets, sand particles, soil, and among others, and combination thereof. The air intake system (100) also includes an airfilter (105) fluidly coupled to and positioned downstream of the precleaner assembly (103). The airfilter (105) is configured to filter the precleaned intake air. The airfilter (105) is configured to receive air from the precleaner assembly (103) by means of a secondary duct (104) and discharge the cleaned air to

the engine of the vehicle by means of a tertiary duct (106). It may be noted that a plurality of other components may be positioned between at least one of the precleaner, the airfilter, and the engine, and that the illustration of the air intake system in Figure 1 is a schematic depiction and cannot be considered as a limitation of the present disclosure.
[0031] In an embodiment, the air feeder (101) and the precleaner assembly (103) may be coupled to the vehicle body by at least one means such as, but not limited to, fastening, clamping, welding, adhesive bonding, brazing, soldering, riveting, and among others. In an illustrative embodiment as shown in Figure 1, the air feeder (101) and the precleaner assembly (103) are coupled to the vehicle body by at least one bracket (107). In an embodiment, the air feeder (101) may be positioned on the vehicle at any position where the air feeder (101) may be capable of drawing in air from surrounding of the vehicle. In an exemplary embodiment, the air feeder (101) is positioned behind the driver, i.e., towards rear side of the vehicle or may be provided on A-pillar of the vehicle. Moreover, the precleaner assembly (103) includes a duct (108) radially connected to the housing (6) and positioned proximal to the outlet (4). The duct (108) is configured to remove at least one impurity being collected in the housing (6). The at least one impurity may be including dust particles, water droplets, sand particles, soil, and among others, and combination thereof. The duct (108) may be configured to remove at least one impurity being collected in the housing (6) by creating a suction effect. Such suction effect may be generated by connecting the duct (108) to a suction creation device such as, but not limited to, a blower, a fan, a vacuum generator, etc.
[0032] Figure 2 illustrates a front sectional view of the precleaner assembly (103) for the air intake system (100). the precleaner assembly (103) includes a housing (6) which is defined with an inlet (2) and an outlet (4) for passage of a fluid. Here, the housing of the precleaner is depicted to include one inlet and one outlet, while the housing may also include multiple inlet and outlet, or multiple inlets for one outlet or multiple outlets for one inlet, due to which the depiction in Figure 2 is not be considered limitation of the present disclosure. The inlet (2) of the precleaner assembly (103) is configured to receive intake air from the air feeder (101) through the primary duct (102) which is connectable at the inlet of the housing. The precleaner assembly (103) further includes a shaft (8) pivotally disposed along a central axis of the housing (6). Furthermore, the precleaner assembly (103) includes a plurality of blades (10) that are radially connected to the shaft (8) and positioned proximal to the inlet (2). The plurality of blades (10) is adapted to operate between a first position (10a) and a second position (10b). In addition, the precleaner assembly (103) includes an actuating mechanism (12) operatively

coupled to the shaft (8). The actuating mechanism (12) is configured to pivot the shaft (8) about the central axis of the housing (6) to operatively tilt the plurality of blades (10) about a tilt axis (X-X) from the first position (10a) and the second position (10b). The tilt axis (X-X) (also referred as “blade axis” interchangeably) of the plurality of blades (10) may be substantially perpendicular to the central axis of the housing (6). Such precleaner assembly (103) provides minimum one impurity, thereby improving overall performance of the engine.
[0033] In Figure 2, the inlet (2) is defined at a first end (A) of the housing (6) and the inlet (2) is configured to receive intake air from the air feeder (101) through the primary duct (102). The outlet (4) is defined at a second end (B) of the housing (6) and the outlet (4) of the housing (6) is configured to discharge the air out of the precleaner assembly (103). The discharged air from the outlet (4) of the precleaner assembly (103) is receivable by the inlet of the airfilter (105) through the secondary duct (104).
[0034] In an operational embodiment, as depicted in Figure 3a, the plurality of blades (10) in the first position (10a) are configured to reduce area for flow of intake air at the inlet (2) of the housing (6). In other words, the intake air is subjected to higher resistance during flow from the air feeder (101) to the housing (6) of the precleaner assembly (103). The plurality of blades (10) is at least inclined or twisted towards the housing (6) about the blade axis (X-X), or defined with at least one profile, to generate a vortex flow of the intake air with respect to the direction of the flow, within the housing (6). The vortex flow directs the at least one impurity towards the inner periphery of the housing (6). The at least one impurity directed towards the inner periphery of the housing (6) is collected in a flange portion (14), thereby precleaning the intake air. The at least one impurity is removed from the housing (6) by the duct (108). The precleaned intake air is expelled from the outlet (4) of the housing (6), which is then directed towards the airfilter (105) for further filtering. Further, upon realizing the clean environment, a driver of the vehicle may actuate the actuating mechanism (12) to tilt the plurality of blades (10) from the first position (10a) to the second position (10b). Further, the plurality of blades (10) may be adjusted at any angle between the first position (10a) and the second position (10b) as depicted in Figure 3b, based on amount of at least one impurity in the intake air.
[0035] During operation condition of the vehicle, when the intake air contains trivial amount of at least one impurity, for instance, when the vehicle is operating in a clean environment such as running on a highway, the plurality of blades (10) is tilted from the first position (10a) to the second position (10b) as depicted in Figure 3c, by the actuating mechanism (12). In an illustrative embodiment as depicted in Figures 2 and 4a-4d, the actuating mechanism (12)

may include a pinion (20) coupled at an end of the shaft (8) and positioned proximal to the outlet (4) of the housing (6). The shaft (8) is pivotable on pivoting of the pinion (20). The actuating mechanism (12) may further include an actuating lever (22) displaceably insertable into the housing (6). The actuating lever (22) is adapted to extend across the pinion (20) and the shaft (8) to be displaceable between a first condition and a second condition. The actuating lever (22) is defined with a plurality of teeth (18) to mesh with the pinion (20), to pivot the shaft (8) on displacement. Displacement of the shaft (8) to the first condition as depicted in Figure 4c, corresponds to the first position (10a) of the plurality of blades (10) as depicted in Figures 4a and 3a. Similarly, displacement of the shaft (8) to the second condition as depicted in Figure 4d, corresponds to the second position (10b) of the plurality of blades (10) as depicted in Figures 4b and 3c. Furthermore, the actuating mechanism (12) may include at least one actuator (203) connectable at an end of the actuating lever (22). The at least one actuator (203) configured to displace the actuating lever (22) relative to the housing (6).
[0036] Such actuation of the actuating mechanism (12) to tilt the plurality of blades (10) may be manual or automated or combination thereof. In an embodiment, the actuator (203) as depicted in Figure 5a, may be dedicated to selectively actuate the actuating mechanism (12), for selectively adjusting orientation (i.e., pivotal angle) of the plurality of blades (10) between and including the first position (10a) and the second position (10b) as depicted in Figures 3a-3c and 4a-4d. Further, actuation of the actuating mechanism (12) is based on amount of the at least one impurity detected by at least one sensor (200) positioned proximal to the inlet (2) of the housing (6). The at least one sensor (200) may be a photoelectric sensor. Furthermore, the amount of at least one impurity detected by the at least one sensor (200) may be displayed by a display unit (202), positioned proximal to the driver of the vehicle. In addition, the air intake system (100) may further include a control unit (201) communicatively coupled to the at least one sensor (200) and the display unit (202).
[0037] Such control unit (201) may be configured to receive at least one input signal from the least one sensor (200) corresponding to the amount of at least one impurity in the intake air at the inlet (2) of the housing (6) and generate at least one display signal to the display unit (202) for displaying the amount of at least one impurity in the intake air at the inlet (2). Based on the amount of at least one impurity in the intake air at the inlet (2), the control unit (201) generates at least one display signal to the display unit (202) for displaying the amount of at least one impurity in the intake air. Based on the amount of at least one impurity in the intake air being displayed in the display unit (202), the driver may provide commands (202a) to the control unit

(201) to actuate the actuating mechanism. The control unit (201), based on the command (202a) provided by the driver, may actuate the actuation mechanism (12) to tilt the plurality of blades (10).
[0038] Alternatively, the air intake system (100) may include an actuator (203) positioned proximal to the driver of the vehicle as depicted in Figure 5b. Based on the amount of at least one impurity in the intake air being displayed in the display unit (202) by the control unit (201), the driver may actuate the actuator (203) to operate the actuating mechanism (12). The actuator (203) may be at least one of a knob, a switch, a screen touch device associated with the display unit (202), and among others. In an embodiment, the plurality of blades (10) in the precleaner assembly (103) may be oriented automatically by the control unit (201) based on the input signal from the least one sensor (200) corresponding to the amount of at least one impurity in the intake air at the inlet (2) of the housing (6). The control unit (201) may be communicatively coupled to the at least one sensor (200) and the display unit (202), by a communication means.
[0039] In an embodiment, the actuator (203) may be positioned proximal to the driver of the vehicle and the driver may manually actuate the actuator (203) to operate the actuating mechanism (12). Such manual actuation may be based on the at least one impurity in the intake air estimated by the driver based on the condition or type of the road in which the vehicle is travelling. In an embodiment, such determination may be made by the driver based on parameters such as, but not limited to, visibility through a windshield, deposition of at least one impurity on the windshield and/or mirrors, and among others, to determine and/or estimate at least one impurity that may enter the air feeder (101) through the intake air for manual operation. Further, such manual actuation of the actuator (203) may be based on the at least one impurity being displayed in the display unit (202) based on the input signal from at least one sensor (200). In an embodiment, the actuator (203) may be positioned anywhere in the vehicle and the driver may manually actuate the actuator (203) to operate the actuating mechanism (12) to orient the plurality of blades (10) in the precleaner assembly (103).
[0040] The communication means may include at least one communication technique such as, but not limited to, wired communication (cable) and wireless communication such as, Bluetooth, infrared, radio frequency (RF) and the like. The display unit (202) may be at least one of an analog display, Direct View Storage Tubes (DVST), 3D Display device Cathode-Ray Tube (CRT), Color CRT Monitor, Liquid Crystal Display (LCD), Light Emitting Diode (LED) Display, Plasma Display, Flat Panel Display, Organic Light-Emitting Diode (OLED)

Display, Active Matrix Organic Light Emitting Diodes (AMOLED) Display, and among others.
[0041] In an embodiment of the disclosure, the control unit (201) may be a centralized control unit (such as engine control system) configured to regulate intake air in the air intake system (100), or a dedicated control unit for the air intake system (100). The control unit (201) may be implemented by any computing systems that is utilized to implement the features of the present disclosure. The control unit (201) may be comprised of a processing unit. The processing unit may comprise at least one data processor for executing program components for executing user- or system-generated requests. The processing unit may be a specialized processing unit such as integrated system (bus) controllers, memory management control units, floating point units, graphics processing units, digital signal processing units, etc. The processing unit may include a microprocessor, such as AMD Athlon, Duron or Opteron, ARM’s application, embedded or secure processors, IBM PowerPC, Intel’s Core, Itanium, Xeon, Celeron, or other line of processors, etc. The processing unit may be implemented using a mainframe, distributed processor, multi-core, parallel, grid, or other architectures. Some embodiments may utilize embedded technologies like application-specific integrated circuits (ASICs), digital signal processors (DSPs), Field Programmable Gate Arrays (FPGAs), and the like.
[0042] In an embodiment, the precleaner assembly (103) of the present disclosure provides minimum resistance to the intake airflow when the intake air contains trivial amount of at least one impurity, thereby improving overall performance of the engine. Further, the precleaner assembly (103) facilities adjusting the angle of the plurality of blades (10) based on amount of at least one impurity in the intake air, thereby adjusting the efficiency of the precleaner assembly (103). Such configuration of the precleaner assembly (103) allows intake air to flow with reduced resistance and thereby increases service life of the precleaner assembly (103). In addition, configuration of the precleaner assembly (103) is simple in construction and mitigates necessity of a skilled person to adjust the angle of the blades (10) during different operation conditions of the vehicle. Also, the precleaner assembly (103) can also be configured to automatically adjust the plurality of blades (10) by the control unit based on the input signal from the least one sensor.
[0043] It is to be understood that a person of ordinary skill in the art may develop a precleaner assembly (103) of similar configuration without deviating from the scope of the present disclosure. Such modifications and variations may be made without departing from the scope of the present invention. Therefore, it is intended that the present disclosure covers such

modifications and variations provided they come within the ambit of the appended claims and their equivalents.
EQUIVALENTS
[0044] With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
[0045] In addition, where features or aspects of the disclosure are described in terms of Markush groups, those skilled in the art will recognize that the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.
[0046] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
[0047] It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare

recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a precleaner assembly (103)) having at least one of A, B, and C” would include but not be limited to device that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances, where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a precleaner assembly (103) having at least one of A, B, or C” would include but not be limited to pistons that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.” While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.

REFERRAL NUMERICALS
Numerical Particulars
2 Inlet
4 Outlet
6 Housing
8 Shaft
10 Plurality of blades
10a First position of the plurality of blades
10b Second position of the plurality of blades

12 Actuating mechanism
14 Flange portion
16 Vortex flow
18 Plurality of teeth
20 Pinion
22 Actuating lever
100 Air intake system
101 Air feeder
102 Primary duct
103 Precleaner assembly
104 Secondary duct
105 Airfilter
106 Tertiary duct
107 Bracket
A First end of the housing
B Second end of the housing
X-X Tilt axis of a blade
200 At least one sensor
201 Control unit
202 Display unit
202a Command
203 Actuator

We claim:
1. A precleaner assembly (103) for an air intake system (100) of a vehicle, the precleaner
assembly (103) comprising:
a housing (6) defined with an inlet (2) and an outlet (4) for passage of a fluid;
a shaft (8) pivotably disposed along a central axis of the housing (6);
a plurality of blades (10) radially connected to the shaft (8) and positioned proximal to the inlet (2), the plurality of blades (10) being adapted to operate between a first position (10a) and a second position (10b); and
an actuating mechanism (12) operatively coupled to the shaft (8), wherein the actuating mechanism (12) is configured to pivot the shaft (8) to operatively tilt the plurality of blades (10) from the first position (10a) and the second position (10b).
2. The precleaner assembly (103) as claimed in claim 1, wherein the plurality of blades (10) in the first position (10a) are configured to reduce area for flow of intake air at the inlet (2) of the housing (6).
3. The precleaner assembly (103) as claimed in claim 1, wherein the plurality of blades (10) in the second position (10b) are configured to increase area for flow of intake air at the inlet (2) of the housing (6).
4. The precleaner assembly (103) as claimed in claim 1, wherein the plurality of blades (10) is defined with a profile such that, flow of intake air over the plurality of blades (10) generates a vortex flow (16).
5. The precleaner assembly (103) as claimed in claim 1, comprises a flange portion (14) extending an inner periphery at the outlet (4) of the housing (6), wherein the flange portion (14) is configured to collect at least one impurity from the vortex flow generated by the plurality of blades (10).
6. The precleaner assembly (103) as claimed in claim 1, comprises at least one sensor positioned proximal to the inlet (2), wherein the at least one sensor is configured to sense the amount of at least one impurity in the intake air.
7. The precleaner assembly (103) as claimed in claim 1, comprises a display unit positioned proximal to a driver of the vehicle, to display the amount of at least one impurity in the intake air sensed by the sensor.
16

8. The precleaner assembly (103) as claimed in claim 1, comprises a control unit
communicatively coupled to the at least one sensor and the display unit, wherein the
control unit is configured to:
receive at least one input signal from the least one sensor corresponding to the amount of at least one impurity in the intake air at the inlet (2) of the housing (6);
generate at least one display signal to the display unit for displaying the amount of at least one impurity in the intake air at the inlet (2); and
actuate the actuating mechanism (12) to tilt the plurality of blades (10) when an actuation signal is received by the driver.
9. The precleaner assembly (103) as claimed in claim 1, wherein the actuating mechanism
(12) comprises:
a pinion (20) coupled at an end of the shaft (8) and positioned proximal to the outlet (4) of the housing (6), wherein the shaft (8) being pivotable on pivoting of the pinion (20);
an actuating lever (22) displaceably insertable into the housing (6), the actuating lever (22) adapted to extend across the pinion (20) and the shaft (8) to be displaceable between a first condition and a second condition, wherein the actuating lever (22) is defined with a plurality of teeth (18) to mesh with the pinion (20), to pivot the shaft (8) on displacement; and
at least one actuator connectable at an end of the actuating lever (22), the at least one actuator configured to displace the actuating lever (22) relative to the housing (6).
10. An air intake system (100) of a vehicle, comprising:
an air feeder (101) positioned on a vehicle body, the air feeder (101) is configured to intake air from outside of the vehicle;
a precleaner assembly (103) fluidly coupled to the air feeder (101), the precleaner (103) comprising:
a housing (6) defined with an inlet (2) and an outlet (4) for passage of a fluid;
a shaft (8) rotatably disposed along a central axis of the housing (6);
a plurality of blades (10) radially connected to the shaft (8) and positioned proximal to the inlet (2), the plurality of blades (10) being adapted to operate between a first position (10a) and a second position (10b);

an actuating mechanism (12) operatively coupled to the shaft (8), wherein the actuating mechanism (12) is configured to pivot the shaft (8) about the central axis of the housing (6) to operatively tilt the plurality of blades (10) from the first position (10a) and the second position (10b); and a duct (108) radially connected to and positioned proximal to the outlet (4) of
the housing (6), the duct (108) configured to remove at least one impurity being
collected in the housing (6); and
an airfilter (105) fluidly coupled to the precleaner assembly (103), the airfilter
(105) is configured to filter the intake air.