Description:TECHNICAL FIELD
[001] The present disclosure relates to an internal combustion engine of a vehicle. More particularly, the present disclosure relates to an apparatus for separating oil from blow-by gas in the internal combustion engine of the vehicle.

BACKGROUND
[002] The information in this section merely provides background information related to the present disclosure and may not constitute prior art(s) for the present disclosure.
[003] Generally, internal combustion engines (hereinafter referred to as “engine”) include a breather circuit configured to vent blow by gases accumulated in the crankcase of the engine. The blow-by gases are either vented to the atmosphere or re-circulated to the engine. The breather circuit is generally configured to vent the blow by gases upon reaching a threshold pressure in the crankcase, and during such venting of the blow by gases a portion of engine oil contained in the crankcase may be carried by the blow by gases.
[004] Typically, oil separation devices are used to separate the oil from the blow by gases. These oil separation devices include a fluid flow path in a chamber. During flow of such gases in the fluid flow path, the gases strike walls of the chamber and separate the engine oil from the blow by gases. However, conventional oil separation devices are not efficient in separation of oil from the blow-by gases. Further, in the existing oil separation devices, there is no provision which channelizes the flow of blow by gases towards or into the breather circuit.
[005] Accordingly, there remains a need in the domain for an improved apparatus for separation of oil from blow by gases that is efficient in performance.

SUMMARY
[006] The one or more shortcomings of the prior art are overcome by the system/assembly as claimed, and additional advantages are provided through the provision of the system/assembly/method as claimed in the present disclosure. 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.
[007] Pursuant to an aspect of the present disclosure, in an embodiment, an apparatus for separating oil from blow-by gas in an internal combustion engine is disclosed. The apparatus comprises a breather circuit formed in a cylinder head cover of the internal combustion engine and adapted to be in fluid communication with a crankcase. The breather circuit comprises a first wall defining an inlet for blow-by gas, a second wall defining an outlet for blow-by gas from which oil has been separated, and a plurality of zones defined between the inlet and the outlet for separation of oil from blow-by gas. The apparatus further comprises a deflector plate disposed upstream of the breather circuit in a flow direction of blow-by gas and extending away from the first wall of the breather circuit.
[008] In another non-limiting embodiment of the present disclosure, the deflector plate is coupled to and extends away from the first wall of the breather circuit.
[009] In another non-limiting embodiment of the present disclosure, the deflector plate extends away from the inlet of the first wall.
[010] In another non-limiting embodiment of the present disclosure, the deflector plate restricts flow of blow-by gas into the breather circuit and at least partially separates oil from blow-by gas.
[011] In another non-limiting embodiment of the present disclosure, a distance between the first wall and a free end of the deflector plate is same as a width of the inlet of the first wall.
[012] In another non-limiting embodiment of the present disclosure, the deflector plate extends away from the inlet of the first wall at an angle of 25 to 50 degrees.
[013] Pursuant to an aspect of the present disclosure, in another embodiment, a vehicle is disclosed. The vehicle comprises a vehicle front frame, a front wheel and a rear wheel, an internal combustion engine, and an apparatus for separating oil from blow-by gas in the internal combustion engine. The apparatus comprises a breather circuit formed in a cylinder head cover of the internal combustion engine and adapted to be in fluid communication with a crankcase. The breather circuit comprises a first wall defining an inlet for blow-by gas, a second wall defining an outlet for blow-by gas from which oil has been separated, and a plurality of zones defined between the inlet and the outlet for separation of oil from blow-by gas. Further, the apparatus comprises a deflector plate disposed upstream of the breather circuit in a flow direction of blow-by gas and extending away from the first wall of the breather circuit.
[014] In another non-limiting embodiment of the present disclosure, the deflector plate is coupled to the first wall of the breather circuit and extends away from the inlet of the first wall at an angle of 25 to 50 degrees.
[015] In another non-limiting embodiment of the present disclosure, the deflector plate restricts flow of blow-by gas into the breather circuit and at least partially separates oil from blow-by gas.
[016] In another non-limiting embodiment of the present disclosure, a distance between the first wall and a free end of the deflector plate is same as a width of the inlet of the first wall.
[017] Within the scope of the present disclosure, the apparatus for separating oil from blow-by gas aids in effectively and efficiently separating oil from the gaseous stream and facilitates minimising loss of engine oil. Also, the deflector plate disposed upstream of the breather circuit facilitates stopping oil carryover from engine.
[018] It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined together to form a further embodiment of the disclosure.
[019] 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 FIGURES
[020] The novel features and characteristics of the disclosure are set forth in the 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 description of an illustrative embodiment when read in conjunction with the accompanying drawings. One or more embodiments are now described, by way of example only, with reference to the accompanying drawings wherein like reference numerals represent like elements and in which:

[021] FIG. 1 illustrates a side view of an internal combustion engine (engine) of a vehicle, in accordance with an embodiment of the present disclosure;
[022] FIG. 2 illustrates a cross-sectional view of the engine of FIG. 1 and depicts components of the engine, in accordance with an embodiment of the present disclosure; and
[023] FIG. 3 illustrates a bottom view of a head cover and a breather circuit of the engine of FIG. 1, in accordance with an embodiment of the present disclosure.

[024] Skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the drawings may be exaggerated relative to other elements to help to improve understanding of embodiments of the present disclosure.

DETAILED DESCRIPTION
[025] While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the FIGS. and will be described in detail 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 as defined by the appended claims.
[026] Before describing detailed embodiments, it may be observed that the novelty and inventive step that are in accordance with the present disclosure resides in an apparatus for separating oil from blow-by gas in an internal combustion engine of a vehicle, and a vehicle comprising the apparatus for separating oil from blow-by gas in the internal combustion engine. It is to be noted that a person skilled in the art can be motivated from the present disclosure and modify the various constructions of the apparatus and the vehicle. However, such modification should be construed within the scope of the present disclosure. Accordingly, the drawings are showing only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.
[027] In the present disclosure, the term “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any embodiment or implementation of the present subject matter described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.
[028] The terms “comprises”, “comprising”, or any other variations thereof, are intended to cover non-exclusive inclusions, such that a device that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such setup or device. In other words, one or more elements in a system or apparatus proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus.
[029] The terms like “at least one” and “one or more” may be used interchangeably or in combination throughout the description.
[030] The terms “front/forward”, “rear/rearward/back/backward”, “up/upper/top”, “down/lower/lower ward/downward, bottom”, “left/leftward”, “right/rightward” used therein represents the directions as seen from a vehicle driver sitting astride.
[031] Pursuant to an embodiment, an apparatus for separating oil from blow-by gas in an internal combustion engine is disclosed. The apparatus comprises a breather circuit formed in a cylinder head cover of the internal combustion engine and adapted to be in fluid communication with a crankcase. The breather circuit comprises a first wall defining an inlet for blow-by gas, a second wall defining an outlet for blow-by gas from which oil has been separated, and a plurality of zones defined between the inlet and the outlet for separation of oil from blow-by gas. The apparatus further comprises a deflector plate disposed upstream of the breather circuit in a flow direction of blow-by gas and extending away from the first wall of the breather circuit. In an embodiment, the deflector plate is coupled to and extends away from the first wall of the breather circuit. In a specific embodiment, the deflector plate extends away from the inlet of the first wall. The deflector plate restricts flow of blow-by gas into the breather circuit and at least partially separates oil from blow-by gas. In a further embodiment, a distance between the first wall and a free end of the deflector plate is same as a width of the inlet of the first wall. The deflector plate extends away from the inlet of the first wall at an angle of 25 to 50 degrees.
[032] Pursuant to another embodiment, a vehicle is disclosed. The vehicle comprises a vehicle front frame, a front wheel and a rear wheel, an internal combustion engine, and an apparatus for separating oil from blow-by gas in the internal combustion engine. The apparatus comprises a breather circuit formed in a cylinder head cover of the internal combustion engine and adapted to be in fluid communication with a crankcase. The breather circuit comprises a first wall defining an inlet for blow-by gas, a second wall defining an outlet for blow-by gas from which oil has been separated, and a plurality of zones defined between the inlet and the outlet for separation of oil from blow-by gas. Further, the apparatus comprises a deflector plate disposed upstream of the breather circuit in a flow direction of blow-by gas and extending away from the first wall of the breather circuit. In an embodiment, the deflector plate is coupled to the first wall of the breather circuit and extends away from the inlet of the first wall at an angle of 25 to 50 degrees. The deflector plate restricts flow of blow-by gas into the breather circuit and at least partially separates oil from blow-by gas. Also, a distance between the first wall and a free end of the deflector plate is same as a width of the inlet of the first wall.
[033] Reference will now be made to the exemplary embodiments of the disclosure, as illustrated in the accompanying drawings. Wherever possible, same numerals will be used to refer to the same or like parts. Embodiments of the disclosure are described in the following paragraphs with reference to FIGS. 1 to 3. In FIGS. 1 to 3, the same element or elements which have same functions are indicated by the same reference signs.
[034] The present disclosure relates to a vehicle (not shown), for example, a two-wheeled vehicle, such as a motorcycle, according to an embodiment of the present disclosure. The vehicle may comprise a frame, a pair of front forks, a front fender, a rear fender, a front wheel, a steering handle bar, a fuel tank provided adjacent to a seat of the vehicle, an engine unit (10) (shown in FIG. 1 and 2), a driving unit, for example, a motor, a muffler, an engine cooling fan unit, a side body cover, a leg shield, a tail light, a headlight, a rear suspension, a rear grip, and a rear wheel adapted to be driven by the driving unit. The frame may comprise a pair of seat sub-frames for mounting the seat.
[035] The vehicle may further comprise a head tube that is adapted to be steerably connected to the front forks, and the front wheel may be attached to a lower end of the front forks. The handlebar may be attached to an upper end of the head tube. The head light may be arranged in front of the handlebar. The front fender may be provided so as to cover an upper portion of the front wheel. The seat on which a rider straddles may be supported by the seat sub-frames. The leg shield that protects legs of the rider may be provided on the front side. The tail light and the rear fender may be provided at a rear portion of the frame. The driving unit may be arranged under the seat of the vehicle.
[036] In accordance with the present disclosure, the rear suspension may comprise a swing arm and a suspension system. The swing arm may be configured to pivotally couple the rear wheel of the vehicle to the frame of the vehicle such that during movement/ travel of the vehicle over an uneven terrain, the rear wheel of the vehicle may pivot with respect to the frame for damping the shock and/or vibrations and thus offer smooth riding experience to the rider and/ or passenger. Further, the suspension system may be embodied as a shock absorber, a first end of which is coupled to the frame of the vehicle and a second end is coupled to an axle of the rear wheel of the vehicle.
[037] With reference to FIGS. 1 and 2, an internal combustion engine (10) (herein after referred to as “the engine (10)”) of the vehicle is disclosed. The engine (10) may be mounted on the frame of the vehicle. The engine (10) may include an engine body (12), a piston with a connecting rod (14), and a crankshaft (16). The engine body (12) may include a cylinder block (18) having a cylinder bore (20), a cylinder head (22), a cylinder head cover (24) and a crankcase (30). The crankcase (30) may further be formed of two sub-parts, for example, a left crankcase (32) and a right crankcase (34). The cylinder block (18) includes the cylinder bore (20) and the piston may be disposed within the cylinder bore (20) and may be adapted to reciprocate within the cylinder bore (20). The cylinder head (22) may be coupled to the cylinder block (18). The cylinder head cover (24) may be secured on top of the cylinder head (22) enclosing the components accommodated in the cylinder block (18).
[038] The crankcase (30) may be coupled to a lower end portion (or the other end portion in the cylinder axis direction) of the cylinder block (18). Further, the crankshaft (16) connected to the piston by the connecting rod (14) may be disposed in the crankcase (30) and may be rotatably supported by crankcase (30). Without deviating from the scope of the present disclosure, the crankcase (30) may be integrated with the engine body (12) or may be manufactured as a separate body all together. The crankcase (30) may also be configured as sump for storing the engine oil for cooling and lubrication of the engine components. When the engine (10) is operating, the charge, i.e., a mixture of fuel/ oil and air, supplied to the combustion chamber undergoes chemical reaction to produce mechanical energy by pushing the piston within the cylinder bore (20). During reciprocation of the piston, a portion of gases having unburnt fuel/ oil in the combustion chamber may leak and accumulate in the crankcase (30). Such accumulated gases are referred to as blow by gas (50) and said blow by gas (50) is required to be vented periodically from the crankcase (30) to prevent pressurization of the crankcase (30). The blow by gas (50) is vented using a breather circuit (110) formed and/ or defined in the cylinder head cover (24).
[039] Referring to FIG. 3, the engine (10) includes an apparatus (100) for separating oil from blow-by gas (50). The apparatus (100) may be defined in the cylinder head cover (24) of the engine (10). Within the scope of the present disclosure, the apparatus (100) comprises a breather circuit (110) formed in the cylinder head cover (24) of the engine (10). Further, the breather circuit (110) is adapted to be in fluid communication with the crankcase (30) of the engine (10). In an embodiment, the breather circuit (110) is communicatively connected to the crankcase (30) through a passage (102), as shown in FIG. 2, provided in the engine (10) to receive blow-by gas (50). The passage (102) may be a breather passage, a blow-by passage, a cam chain cavity/space and the like. Without deviating from the scope of the present disclosure, the engine (10) may include a breather pipe having a first end secured to the cylinder head cover (24) of the engine (10) and a second end secured to an air cleaner. During reciprocation of the piston, a positive pressure is created in the engine (10), and the breather pipe may be configured to receive the gaseous stream from the first end and release the gaseous stream through the second end into the air cleaner due to positive pressure created in the engine (10).
[040] In accordance with the present disclosure, the breather circuit (110) is configured to separate oil from blow by gas (50). Although, in the exemplary embodiment illustrated in FIGS. 2 and 3, the breather circuit (110) is formed or defined in the cylinder head cover (24); however, without deviating from the scope of the present disclosure, in another embodiment, the breather circuit (110) may be formed in the crankcase (30) of the engine (10).
[041] Referring to FIGS. 2 and 3, where a bottom view of the cylinder head cover (24) is shown in FIG. 2, the cylinder head cover (24) defines a space to form the breather circuit (110) together with a breather plate (119). In the exemplary embodiment, the space may be defined underneath a top wall (26) of the cylinder head cover (24). The breather circuit (110) may comprise a body (112). The body (112) may further comprise an upper wall (114), the breather plate (119) and a side wall structure extending between the upper wall (114) and the breather plate (119), forming the body (112) of the breather circuit (110). The upper wall (114) of the body (112) may be defined by a portion of the top wall (26) of the cylinder head cover (24). The side wall structure of the body (112) may be defined by walls that extend downwardly from the top wall (26) of the cylinder head cover (24). A lower wall of the body (112) may be defined by the breather plate (119) of the breather circuit (110). The breather plate (119) may be adapted to be mounted at end portions of the side walls of the body (112).
[042] Referring to FIG. 3, the body (112) of the breather circuit (110) comprises a first wall (120) and a second wall (130). The first wall (120) defines an inlet (122) for blow by gas (50). Specifically, the first wall (120) defines the inlet (122) for receiving blow by gas (50) from the crankcase (30) through the passage (102). Further, the second wall (130) defines an outlet (132) for blow by gas (50) from which fuel/ oil has been separated. Specifically, the second wall (130) defines the outlet (132) for releasing the blow by gas (50) from which oil has been separated, from the breather circuit (110) in the environment or to re-circulate within the engine (10). In an embodiment, the inlet (122) and the outlet (132) are defined in two opposites sides of the body (112) of the breather circuit (110).
[043] In accordance with the present disclosure, the body (112) of the breather circuit (110) further comprises a plurality of zones (140) or flow chambers. The plurality of zones (140) may be defined between the inlet (122) and the outlet (132) of the body (112) of the breather circuit (110). The plurality of zones (140) is fluidly connected to each other and are adapted to separate oil from blow by gas (50). Each zone (140) of the plurality of zones (140) is defined within a space (S) formed by walls (120, 130) of the body (112) and the breather plate (119). The gaseous stream of blow by gas (50) may flow from one zone (140) to the adjacent zone (140) for separating oil from blow by gas (50). Without limiting the scope of the present disclosure, each zone (140) of the plurality of zones (140) may include walls (142) (for example, tapered walls) and during the flow of the gaseous stream of blow by gas (50) from the inlet (122) towards the outlet (132), the gaseous stream comes in contact with or strike at the walls (142) of the zones (140), thereby separating oil from blow by gas (50). Particularly, when the gaseous stream comes in contact with the walls (142) of the zones (140), oil in the gaseous stream accumulate on the walls (142) of the zones (140) and remaining part of the gaseous stream flows out from the zones (140). Additionally, the walls (142) of the zones (140) are configured to alter a flow direction of the gaseous stream in the breather circuit (110), thus aiding in separation of oil from blow by gas (50).
[044] Further, the breather circuit (110) may comprise one or more drainage provisions (not shown). The one or more drainage provisions may be configured at bottom of at least one zone (140) of the plurality of zones (140). The one or more drainage provisions may be fluidly connected to the at least one zone (140) of the plurality of zones (140), and configured to drain the oil that is separated from the gaseous stream. In an embodiment, the one or more drainage provisions may be defined in the breather plate (119) of the breather circuit (110).
[045] In accordance with the present disclosure, the apparatus (100) further comprises a deflector plate (150). The deflector plate (150) may be disposed upstream of the breather circuit (110) in a flow direction of blow by gas (50). In an embodiment, the deflector plate (150) is disposed in the flow path of blow by gas (50) coming from the crankcase (30) towards the breather circuit (110). The deflector plate (150) may be configured to channelize blow by gas (50) into the breather circuit (110) for separation of oil from blow by gas (50). Further, the deflector plate (150) is adapted to extend away from the first wall (120) of the body (112) of the breather circuit (110). In an embodiment, the deflector plate (150) extends away from the inlet (122) of the first wall (120) of the breather circuit (110), as shown in FIG. 3. In accordance with the present disclosure, the deflector plate (150) is configured to restrict flow of blow by gas (50) into the breather circuit (110) and at least partially separates oil from blow-by gas (50).
[046] In an embodiment, the deflector plate (150) may be coupled to the first wall (120) of the breather circuit (110) and extends away from the first wall (120) of the breather circuit (110). In another embodiment, the deflector plate (150) may be coupled to the top wall (26) of the cylinder head cover (24) of the engine (10) and may be arranged to extend away from the first wall (120) of the breather circuit (110).
[047] Further, the deflector plate (150) is adapted to extend away from the first wall (120) of the breather circuit (110) such that a distance between the first wall (120) and a free end (152) of the deflector plate (150) is same as a width of the inlet (122) of the first wall (120) of the breather circuit (110). Furthermore, the deflector plate (150) is adapted to extend away from the inlet (122) of the first wall (120) at an angle of 25 to 50 degrees, as shown in FIG. 3.
[048] Within the scope of the present disclosure, the apparatus (100) for separating oil from blow-by gas (50) aids in effectively and efficiently separating oil from the gaseous stream and facilitates minimising loss of engine oil. Also, the deflector plate (150) disposed upstream of the breather circuit (110) facilitates stopping oil carryover from engine (10).
[049] In accordance with the present disclosure, the configuration of the breather circuit (110) effectively and efficiently separates oil from blow by gas (50) before releasing the gas into the atmosphere or recirculating within the engine (10). Also, the breather circuit (110) minimises the loss of engine oil.
[050] The various embodiments of the present disclosure have been described above with reference to the accompanying drawings. The present disclosure is not limited to the illustrated embodiments; rather, these embodiments are intended to fully and completely disclose the subject matter of the disclosure to those skilled in this art. In the drawings, like numbers refer to like elements throughout. Thicknesses and dimensions of some components may be exaggerated for clarity.
[051] Herein, the terms “attached”, “connected”, “interconnected”, “contacting”, “mounted”, “coupled” and the like can mean either direct or indirect attachment or contact between elements, unless stated otherwise.
[052] Well-known functions or constructions may not be described in detail for brevity and/or clarity. As used herein the expression “and/or” includes any and all combinations of one or more of the associated listed items.
[053] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes” and/or “including” when used in this specification, specify the presence of stated features, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, operations, elements, components, and/or groups thereof.
[054] While considerable emphasis has been placed herein on the particular features of this disclosure, it will be appreciated that various modifications can be made, and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other modifications in the nature of the disclosure or the preferred embodiments will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

EQUIVALENTS:
[055] The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[056] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
[057] Any discussion of documents, acts, materials, devices, articles and the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
[058] The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary. , Claims:CLAIMS

We Claim:

1. An apparatus (100) for separating oil from blow-by gas (50) in an internal combustion engine (10), the apparatus (100) comprising:
a breather circuit (110) formed in a cylinder head cover (24) of the internal combustion engine (10) and adapted to be in fluid communication with a crankcase (30), the breather circuit (110) comprising:
a first wall (120) defining an inlet (122) for blow-by gas (50);
a second wall (130) defining an outlet (132) for blow-by gas (50) from which oil has been separated; and
a plurality of zones (140) defined between the inlet (122) and the outlet (132) for separation of oil from blow-by gas (50), and
wherein, the apparatus (100) comprises a deflector plate (150) disposed upstream of the breather circuit (110) in a flow direction of blow-by gas (50) and extending away from the first wall (120) of the breather circuit (110).

2. The apparatus (100) as claimed in claim 1, wherein the deflector plate (150) coupled to and extends away from the first wall (120) of the breather circuit (110).

3. The apparatus (100) as claimed in claim 1, wherein the deflector plate (150) extends away from the inlet (122) of the first wall (120).

4. The apparatus (100) as claimed in claim 1, wherein the deflector plate (150) restricts flow of blow-by gas (50) into the breather circuit (110) and at least partially separates oil from blow-by gas (50).

5. The apparatus (100) as claimed in claim 1, wherein a distance between the first wall (120) and a free end (152) of the deflector plate (150) same as a width of the inlet (122) of the first wall (120).

6. The apparatus (100) as claimed in claim 1, wherein the deflector plate (150) extends away from the inlet (122) of the first wall (120) at an angle of 25 to 50 degrees.

7. A vehicle, comprising:
a vehicle front frame;
a front wheel and a rear wheel;
an internal combustion engine (10); and
an apparatus (100) for separating oil from blow-by gas (50) in the internal combustion engine (10), the apparatus (100) comprising:
a breather circuit (110) formed in a cylinder head cover (24) of the internal combustion engine (10) and adapted to be in fluid communication with a crankcase (30), the breather circuit (110) comprising:
a first wall (120) defining an inlet (122) for blow-by gas (50);
a second wall (130) defining an outlet (132) for blow-by gas (50) from which oil has been separated; and
a plurality of zones (140) defined between the inlet (122) and the outlet (132) for separation of oil from blow-by gas (50), and
wherein, the apparatus (100) comprises a deflector plate (150) disposed upstream of the breather circuit (110) in a flow direction of blow-by gas (50) and extending away from the first wall (120) of the breather circuit (110).

8. The vehicle as claimed in claim 7, wherein the deflector plate (150) coupled to the first wall (120) of the breather circuit (110) and extends away from the inlet (122) of the first wall (120) at an angle of 25 to 50 degrees.

9. The vehicle as claimed in claim 7, wherein the deflector plate (150) restricts flow of blow-by gas (50) into the breather circuit (110) and at least partially separates oil from blow-by gas (50).

10. The vehicle as claimed in claim 7, wherein a distance between the first wall (120) and a free end (152) of the deflector plate (150) same as a width of the inlet (122) of the first wall (120).