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A System For Cooling Fluid In A Transmission And A Method Thereof

Abstract: ABSTRACT The present disclosure discloses a system for cooling a fluid in a transmission of a vehicle. The system comprises a water cooler unit and an air cooler unit, which are fluidly connected to each other. The water cooler unit is positioned on a casing of the transmission and is adapted to receive the fluid from the transmission to dissipate a portion of heat. The air cooler unit comprises a first and second heat exchanging members, adapted to receive the fluid from the water cooler unit. The air cooler unit further comprises of one or more fans activated by an ECU, when the temperature of the fluid is more than a predetermined value. The one or more fans induce flow of air through the first and second heat exchanging members, resulting in selective cooling of the fluid. The configuration of the system improves cooling efficiency of the fluid in the transmission. FIG. 5

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
22 March 2018
Publication Number
39/2019
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
bangalore@knspartners.com
Parent Application
Patent Number
Legal Status
Grant Date
2023-11-08
Renewal Date

Applicants

TATA MOTORS LIMITED
Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India

Inventors

1. Nilesh Popatlal Kankariya
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India
2. Prashant Prabhakarrao Ghose
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India
3. Ravindra Shriniwas Malkhedkar
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India
4. Rahul Suryakant Pardeshi
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India
5. Pavan Sudhakar Sindgikar
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India
6. Ganesh Kailash Kale
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India
7. Anjali Tarachand Bhapkar
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India
8. Amit Manik Kulkarni
C/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India

Specification

Claims:We claim,
1. A system (200) for cooling fluid in a transmission (400) of a vehicle, the system (200) comprising:
a water cooler unit (300) fluidly connected to an outlet port of the transmission (400), the water cooler unit (300) is adapted to receive a fluid from the transmission (400) and dissipate a portion of heat from the fluid; and
an air cooler unit (100) comprising a fluid inlet manifold (104) and a fluid outlet manifold (105), the fluid inlet manifold (104) of the air cooler unit (100) is fluidly connected to the water cooler unit (300),
wherein, the air cooler unit (100) is adapted to receive the fluid from the water cooler unit (300), and selectively cool the fluid, and wherein, the fluid outlet manifold (105) of the air cooler unit (100) is fluidly connected to an inlet of the transmission (400) for supplying the fluid.

2. The system (200) as claimed in claim 1, wherein the water cooler unit (300) is positioned on a casing of the transmission (400).

3. The system (200) as claimed in claim 1, wherein the air cooler unit (100) is positioned at a rear side of the transmission (400).

4. The system (200) as claimed in claim 1, wherein the air cooler unit (100) comprises:
a first heat exchanging member (101) and a second heat exchanging member (102), positioned parallel to each other; and
one or more fans (103), positioned between the first heat exchanging member (101) and the second heat exchanging member (102).

5. The system (200) as claimed in claim 4, wherein the one or more fans (103) are adapted to induce flow of air through the first heat exchanging member (101) and the second heat exchanging member (102).

6. The system (200) as claimed in claim 1, comprises:
an ECU of the vehicle operatively coupled to the one or more fans (103), the ECU is configured to:
receive a signal corresponding to temperature of the fluid flowing from the water cooler unit (300) to the air cooler unit (100); and
regulate, the one or more fans (103), based on the temperature of the fluid.

7. The system (200) as claimed in claim 6, wherein the ECU is configured to activate the one or more fans (103) when the temperature of the fluid is more than a predetermined value.

8. A method of cooling fluid in a transmission (400) of a vehicle, the method comprising:
circulating the fluid from the transmission (400) into a water cooler unit (300), to dissipate a portion of heat from the fluid;
circulating the fluid from the water cooler unit (300) to an air cooler unit (100);
activating, by an ECU, one or more fans (103) in the air cooler unit (100), to selectively cool the fluid in the air cooler unit (100); and
re-circulating the cooled fluid from the air cooler unit (100) to the transmission (400).

9. An air cooler unit (100) for a vehicle, comprising:
a first heat exchanging member (101) and a second heat exchanging member (102), positioned parallel to each other on a mounting bracket (106), wherein, the first heat exchanging member (101) and the second heat exchanging member (102) are configured to receive a fluid to be cooled; and
one or more fans (103), positioned between the first heat exchanging member (101) and the second heat exchanging member (102), wherein the one or more fans (103) are adapted to induce flow of air through the first heat exchanging member (101) and the second heat exchanging member (102).

10. The air cooler unit (100) as claimed in claim 9, wherein inlet ports of the first heat exchanging member (101) and the second heat exchanging member (102) are interconnected by a fluid inlet tube (109), and outlet ports of the first heat exchanging member (101) and the second heat exchanging member (102) are interconnected by a fluid outlet tube (110).

11. The air cooler unit (100) as claimed in claim 9, wherein the first heat exchanging member (101) and the second heat exchanging member (102) include a plurality of tubes (107) defining an internal flow path for circulating the fluid.

12. A vehicle comprising a cooling system (200) as claimed in claim 1.
, Description:TECHNICAL FIELD
Present disclosure in general relates to a field of automobile engineering. Particularly but not exclusively, the present disclosure relates to a cooling system of a vehicle. Further embodiments of the disclosure disclose a system for cooling fluid in a transmission of the vehicle.

BACKGROUND OF THE DISCLOSURE

Generally, automobiles are provided with transmission assembly for transmitting power generated by a prime mover i.e. engine or an electric motor to the wheels for manoeuvring the vehicle. The transmission assembly may generally comprise of a clutch system to facilitate engaging and disengaging of gears, transmission or gear box comprising plurality of gear wheels of different gear ratios, propeller shaft, differential assembly and wheel axles. Among other components in the transmission assembly, the transmission or gearbox plays a vital role in catering required torque values during various operating conditions of the vehicle. Vehicles such as light duty vehicles including passenger cars, and heavy transport vehicles such as pick-up trucks, semi-trucks and tipper trucks which are used to carry heavier loads may be equipped with different types of transmission including but not limiting to manual transmission, automatic transmission, semi-automatic transmission, to deliver wide range of torque values based on the requirement.

The transmission or generally referred as gear box comprises of a plurality of gears wheels of different gear ratios, which facilitates in converting high engine speed to a slower wheel speed, thus increasing the torque value or vice versa. Since, the transmission involves number of moving parts, heat may be generated due to friction between the moving parts, which leads to loss of power. Excess loss of power may not only lead to excess fuel consumption, it may also leads to impact on the transmission through gear contact fatigue. Further, heat generated also leads to sliding and rolling friction losses at the bearings and at a point of loaded gear meshing. In order to mitigate the excess heat generation and to maintain conducive operating conditions in the transmission, lubrication or cooling systems are employed, in which a fluid may be circulated through different circuits in the transmission to dissipate the heat generated. The fluid may also from a thin film between the meshing gears, thus assisting in smooth meshing and running of gears, which results in reduction of heat generation. As an example, the fluid may be a coolant oil or a lubricant oil.

Since, the fluid plays a vital role in dissipating heat from the transmission, thus monitoring the temperature of the hot fluid exiting from the transmission is a predominant task. Conventionally, in some of the vehicle the coolant or fluid from the transmission was supplied to the radiator, which was employed to cool engine. The hot fluid from the transmission is circulated or pumped through the fluid lines into a separate tube of the radiator, in which some amount of heat may be dissipated by the engine coolant in an adjoining section of the radiator. However, under high load and speed conditions, overheating of the transmission may contribute to the overheating of the engine and thus reducing efficiency of the radiator. Overheating of the engine may also reduce efficiency of the engine.

With on-going developments in the automotive industry, further improvements were carried in vehicles to cool or conditioning the coolant or fluid in the transmission. One such configuration may include provision of a separate cooling system to cool the fluid of the transmission. Such conventional cooling system may comprise of a cooler unit with a fan arrangement to cool the hot fluid from the transmission. However, with increase in speed, grade loads and gross combination, the heat generation increases drastically and thus effective cooling of the transmission coolant may not achieved, which results in inappropriate cooling and leading to operational errors.

The present disclosure is directed to overcome one or more limitations stated above and any other limitations associated with the prior arts.

SUMMARY OF THE DISCLOSURE

One or more shortcomings of conventional system are overcome, and additional advantages are provided through the provision of system 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.

In one non-limiting embodiment of the disclosure, a system for cooling fluid in a transmission of a vehicle is disclosed. The system comprises a water cooler unit fluidly connected to an outlet port of the transmission. The water cooler unit is adapted to receive a fluid from the transmission and dissipate a portion of heat from the fluid. The system further comprises an air cooler unit, comprising a fluid inlet manifold and a fluid outlet manifold. The fluid inlet manifold of the air cooler unit is fluidly connected to the water cooler unit to receive the fluid from the water cooler unit, and selectively cool the fluid. The fluid outlet manifold of the air cooler unit is fluidly connected to an inlet of the transmission for supplying the fluid.

In an embodiment, the water cooler unit positioned on a casing of the transmission and the air cooler unit is positioned at a rear side of the transmission.

In an embodiment, the air cooler unit comprises a first heat exchanging member and a second heat exchanging member positioned parallel to each other. Additionally, the air cooler unit comprises one or more fans positioned between the first heat exchanging member and the second heat exchanging member, wherein the fans are adapted to induce flow of air through the first heat exchanging member and the second heat exchanging member.

In an embodiment, the system for cooling a fluid in the transmission comprises an ECU operatively coupled to the one or more fans. The ECU is configured to receive a signal corresponding to temperature of the fluid flowing from the water cooler unit to the air cooler unit. The ECU activates the one or more fans when the temperature of the fluid is more than a predetermined value.

In another non limiting embodiment of the disclosure, a method of cooling a fluid in a transmission of a vehicle is disclosed. The method comprises, circulating the fluid from the transmission into a water cooler unit, to dissipate a portion of heat from the fluid. Further, the fluid from the water cooler unit is circulated to an air cooler unit. In the air cooler, an ECU activates the one or more fans in the air cooler unit, to selectively cool the fluid in the air cooler unit.

In yet another non-limiting embodiment of the disclosure, an air cooler unit of a vehicle is disclosed. The air cooler unit comprises a first heat exchanging member and a second heat exchanging member, which are positioned parallel to each other on a mounting bracket. The first heat exchanging member and the second heat exchanging member are configured to receive a fluid to be cooled. Further, the air cooler unit comprises one or more fans positioned between the first heat exchanging and the second heat exchanging member, to induce flow of air through the first heat exchanging member and the second heat exchanging member

In an embodiment of the present disclosure, inlet ports of the first heat exchanging member and the second heat exchanging member are interconnected by a fluid inlet tube, and outlet ports of the first heat exchanging member and the second heat exchanging member are interconnected by a fluid outlet tube.

In an embodiment of the present disclosure, the first heat exchanging member and the second heat exchanging member include a plurality of tubes defining an internal flow path for circulating the fluid.

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.

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 ACCOMPANYING DRAWINGS

The novel features and characteristic of the disclosure are set forth in the appended claims. 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 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:

Figure. 1 illustrates a block diagram of a vehicle employed with a system for cooling the fluid in a transmission, in accordance with an embodiment of the present disclosure.

Figure. 2 illustrates a perspective view of an air cooler unit of the system of Figure. 1, in accordance with an exemplary embodiment of the present disclosure.

Figure. 3 illustrates an exploded view of the air cooler unit of the Figure. 2.

Figure. 4 illustrates a perspective view of a water cooler unit of the system of Figure. 1, in accordance with an exemplary embodiment of the present disclosure.

Figure. 5 illustrates a schematic view of a transmission of the vehicle employed with a system for cooling the fluid in the transmission, in accordance with an exemplary embodiment of the present disclosure.

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 structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAILED DESCRIPTION

While the embodiments in the disclosure are subject to various modifications and alternative forms, specific embodiment thereof has been shown by 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 form disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.

It is to be noted that a person skilled in the art would be motivated from the present disclosure and modify various constructions of the system for cooling a fluid in a transmission, which may vary from vehicle to vehicle. However, such modifications should be construed within the scope 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 skill in the art having benefit of the description herein.

The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that assembly that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such assembly. In other words, one or more elements in the assembly proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the assembly.

Embodiments of the present disclosure disclose a system for cooling a fluid in a transmission of a vehicle. Generally, in components such as a transmission of a vehicle, heat may be generated immensely due to friction between the moving parts. In the vehicles employed with automatic transmission heat generation will be even more due to automatic operation of the transmission components such as clutch. The heat generation may rise the temperature of the transmission above the optimum operating temperature, which may lead to power loss and other operational errors. Hence, dissipating the heat generated in transmission plays a vital role to maintaining optimum and conducive operating conditions. In order to accomplish timely dissipating of the heat generated in the transmission, cooling systems are employed in the vehicles. The cooling system involves a pump and coolant lines for pumping and circulating the fluid through a pre-defined circuits in the transmission to dissipate the heat generated. Further, the cooling system also includes cooler units for cooling the hot fluid i.e. the spent fluid from the transmission. Conventionally, the hot transmission fluid is circulated into a separate tubes in the radiator, in which a portion of heat from the transmission fluid is absorbed by the engine coolant present in the adjoining sections of the radiator. This arrangement contributes in over heating of the engine, due to increase in the heat load on the radiator at high grade and load conditions. This drawback of using same system for cooling both the engine fluid and the transmission fluid lead to develop a separate system for cooling fluid in the transmission, which include a cooler unit adopted to cool the hot transmission fluid. However, under high gross combination, grade loads and speed, the heat generated increased drastically, leading to operational errors. Since, timely and efficiently eliminating the heat generated in the transmission, results in optimum operating conditions, the present disclosure, aims in providing a cooling system with plurality of cooler units for efficient cooling of the hot fluid from the transmission.

Accordingly, embodiments of the present disclosure disclose, a system for cooling the fluid in a transmission of a vehicle. In an embodiment, the fluid may be a coolant oil or a lubricant oil, which is meant for dissipating the heat generated. The system comprises a water cooler unit and an air cooler unit. The system according to present disclosure is configured such that hot fluid from the transmission is initially circulated into the water cooler unit, positioned on the casing of the transmission, to dissipate a portion of heat from the fluid. Further, the fluid from the water cooler unit is conveyed through the air cooler unit, positioned at a rear side of the transmission, to selectively cool the fluid to ambient temperature. The cooled fluid from the air cooler unit is recirculated to the transmission to maintain optimum operating conditions in the transmission.

The present disclosure also provides an air cooler unit adapted in a system for cooling a fluid in the transmission of a vehicle. The air cooler unit comprises a first heat exchanging member and a second heat exchanging member connected fluidly and positioned parallel to each other on a mounting bracket. The first heat exchanging member and the second heat exchanging member include a plurality of tubes defining an internal flow path for circulating the fluid. Further, the air cooler unit includes one or more fans positioned between the first heat exchanging member and the second heat exchanging member to induce flow of air through the first heat exchanging member and the second heat exchanging member in order to selectively cool the fluid flowing through the plurality of tubes. Additionally, an ECU is operatively coupled to the one or more fans. The ECU actuates the one or more fans, only when the temperature of the fluid flowing from the water cooler exceeds a pre-determined value. Hence, the cooling system with cooler units assists in selective cooling of the transmission, results in minimizing power losses, noise and may also result in smooth operation.

The system for cooling the fluid in the transmission of the disclosure may be used in various types of vehicles including small or large cars, sport utility vehicles, multi utility vehicles, luggage or goods carrying vehicles, trucks, trailers, commercial vehicles, and the like.

The following paragraphs describe the present disclosure with reference to Figures. 1 to 5. In the Figures, the same element or elements which have similar functions are indicated by the same reference signs. In the figures, vehicle is not illustrated for the purpose of simplicity.

Figures. 1, is an exemplary block diagram of a vehicle employed with a system (200) for cooling the fluid in the transmission (400). During working of the transmission (400), heat may be generated due to friction between number of moving parts such as gears, bearings, shafts and the like. In order to dissipate the heat generated, the fluid is circulated through a defined channels or circuits such as a transmission oil pump circuit, a hydraulic cooling circuit, and a lubrication circuit in the transmission (400). The fluid circulating through these circuits carry out or dissipate the heat generated in the transmission (400), and facilitates in maintaining prescribed working temperature. As an example, the optimum working temperature of the transmission (400) may be 105 degree Celsius. In an embodiment, the fluid in the transmission (400) may be a single grade or a multi grade coolant oil, which is used to dissipate the heat generated in the transmission (400). To effectively dissipate the heat generated in the transmission (400), a system (200) for cooling the fluid in the transmission (400) is employed, since cooling the fluid plays an important role in maintaining optimum working temperature of the transmission (400). The system (200) broadly includes an air cooler unit (100) and a water cooler unit (300). The system (200) is configured such that fluid from the transmission (400) enters the water cooler unit (300), and then the air cooler unit (100).

Referring now to Figures 2 and 3, which are exemplary embodiments of the present disclosure, illustrates an exploded view and an assembled view of the air cooler unit (100), employed in a system (200) for cooling a fluid in a transmission (400) [seen in figure. 5] of the vehicle. The air cooler unit (100) comprises a fluid inlet manifold (104) and a fluid outlet manifold (105). The fluid inlet manifold (104) of the air cooler unit (100) is fluidly connectable to the water cooler unit (300) to receive a semi-cooled fluid from the water cooler unit (300). The fluid outlet manifold (105) of the air cooler unit (100) is fluidly connected to an inlet of the transmission (400), to circulate a selectively cooled fluid to the transmission (400).

The air cooler unit (100) comprises of a first heat exchanging member (101) and a second heat exchanging member (102), which are positioned parallel to each other on a mounting bracket (106). The first heat exchanging member (101) and the second heat exchanging member (102) include a plurality of tubes (107) defining an internal flow path for circulating the fluid. Additionally, the air cooler unit (100), comprises of one or more fans (103) positioned between the first heat exchanging member (101) and the second heat exchanging member (102). The fans (103) are regulated and activated by an ECU [not shown in figure], which is configured to receive a signal corresponding to the temperature of the fluid flowing from the water cooler unit (300) and activate the one or more fans (103) when the temperature of the fluid is more than a pre-determined value. In an embodiment, the predetermined temperature of the fluid may be around 95 degree Celsius. The one or more fans (103) positioned between the first heat exchanging member (101) and the second exchanging member (102), induce flow of air through the first heat exchanging member (101) and the second heat exchanging member (102). The induced air acts as a cooling medium and facilitates heat reduction in the hot fluid flowing inside the plurality of tubes (107) in the heat exchanging members (101, 102). As shown in Figure. 2, the air cooler unit (100) may include two fans (103) directed towards one of the first or second heat exchanging members (101,102). The fans (103) when activated draws air from one side and blows onto the other side. Thus, the configuration of the air cooler unit (100) achieves passage of air onto the heat exchanging members during both the actions of the fan i.e. during suction and blowing. This facilitates cooling of the fluid circulating through the first and second heat exchanging members (101, 102). In an embodiment of the disclosure, the fans (103) may be oriented such that at least one fan blows air onto one of the fist or second heat exchanging members (101, 102).

Further, referring to figure. 3, bottom sides of the first heat exchanging member (101) and the second heat exchanging member (102) are clamped to a connecting bracket (111) at either sides and similarly, upper sides of the heat exchanging members (101, 102) are connected through clamps (108). The connecting bracket (111) and the clamps (108), facilitates in firm holding of the first heat exchanging member (101) and the second heat exchanging member (102) at their positions and thus assisting to constitute as a single assembly. Additionally, inlet ports of both the heat exchanging members (101, 102) are interconnected by a fluid inlet tube (109) and similarly outlet ports of the heat exchanging members (101, 102) are interconnected by a fluid outlet tube (110), facilitating the fluid to circulate through both the heat exchanging members (101, 102) simultaneously. Further, the air cooler unit (100) is configured with a mounting member (112), which facilitates in rigid fastening of the air cooler unit (100) at a desired location.

Now referring to figure. 4, which is an exemplary embodiment of the present disclosure, illustrating a perspective view of a water cooler unit (300) employed in the system (200) for cooling a fluid in the transmission (400). The water cooler unit (300) is fluidly connected to an outlet port [not shown] of the transmission (400) and may be configured to initially receive the hot fluid from the transmission (400). The water cooler unit (300) comprises an outer cylindrical structure (301), whose lower end is adhered to a flat platform (302) and the upper end is enclosed with a lid (303). In an embodiment, the platform (302) may be adapted to facilitate fastening of the water cooler unit (300) at a specified location. The water cooler unit (300) comprises a plurality of provisions or openings adapted to facilitate entry of hot fluid from the transmission (400), entry of cooling medium i.e. water from the reservoir [not shown in figure] and exit of the cooled fluid from the water cooler unit (300). Further, the water cooler unit (300) may comprise of a plurality of separate channels or tubes [not shown in figure], arranged in a helical pattern, which define an internal flow path for circulating the hot fluid and the cooling medium. Due to temperature difference between the hot fluid and the cooling medium, heat transfer occurs between the hot fluid and the cooling medium, thus cooling the hot fluid from the transmission (400). In an embodiment, the water cooler unit (300) may be made of thermal conductivity metals, but not limiting to Aluminium. In another embodiment, the water cooler unit (300) may be an available water cooler unit in a vehicle.

Now referring to Figure. 5 which is an exemplary embodiment of the present disclosure, illustrating a schematic view of the transmission (400) of the vehicle employed with a system (200) for cooling fluid in transmission (400). As shown in Figure. 5, the hot fluid emerging from the transmission (400) may be circulated into the cooler units (100, 300) in the cooling system (200) to dissipate the heat and reduce the temperature. In an embodiment, reducing the temperature of the fluid to an ambient range results in regaining its properties such as high thermal conductivity, high specific heat, moderate viscosity and the like. The fluid possessing these properties, caters efficient dissipation or absorption of heat, when circulated through the circuits in the transmission (400).

The system (200) for cooling the fluid in the transmission (400) comprises a water cooler unit (300) and an air cooler unit (100), which are fluidly connected through a plurality of fluid lines (201, 202). The plurality of fluid lines (201, 202) may be clamped to the casing of the transmission (400) with aid of plurality of positive clamps [not shown in figure]. The water cooler unit (300) and the air cooler unit (100) in the cooling system (200) facilitates cooling of the fluid in two-stages, which results in improved cooling of the fluid. The hot fluid emerging from the outlet port of the transmission (400) is circulated into the water cooler unit (300) positioned on a casing of the transmission (400). The water cooler unit (300) may be configured to dissipate at least a portion of heat from the fluid. The fluid entering the water cooler unit (300) may be circulated through the plurality of tubes positioned in vicinity of the plurality of tubes carrying the cooling medium i.e. water. Heat transfer occurs from the fluid to the coolant due to temperature difference, which results in reduction in temperature of the fluid. This semi-cooled fluid exit from the water cooler unit (300) and may be circulated into the air cooler unit (100) positioned at a heat free zone. In an embodiment, the heat free zone may be any location away from the transmission (400). As an example, the heat free zone may include, but not limiting to a rear side of the transmission (400).

The semi-cooled fluid from the water cooler unit (300) enters the air cooler unit (100) through a fluid inlet manifold (104) and may be circulated through the plurality of tubes (107) of the first heat exchanging member (101) and the second heat exchanging member (102). In an embodiment, the plurality of tubes (107) may be made of any thermal conducting metals, but not limiting to brazed aluminium. An ECU unit is configured to receive a signal when the temperature of the fluid from the water cooler unit (300) reaches above a predetermined value and activate the one or more fans (103) positioned between the first heat exchanging member (101) and the second heat exchanging member (102). The activated one or more fans (103) induce flow of air through the first heat exchanging element (101) and the second heat exchanging element (102), which facilitates heat exchange between the fluid circulating through the plurality of tubes (107) and the air medium striking plurality of tubes (107), which results in cooling the fluid to ambient temperature. The cooled fluid may be re-circulated into the transmission (400) through the inlet port via a fluid line (202) to dissipate the heat generated in the transmission (400).

In an embodiment, the fluid entering the air cooler unit flows through both the first heat exchanging member and second heat exchanging member simultaneously. This results in circulation of optimum quantity of fluid through the tubes of the heat exchanging elements, and thus facilitates effective heat transfer between the hot fluid and the cool air medium.

It is to be noted that use of a system for cooling a fluid in a transmission is an exemplary embodiment, and the same may be adapted to cool the fluid in the engine without deviating from the scope of the present disclosure.

In an embodiment of the present disclosure, the cooling system used to cool the fluid in the transmission assists in achieving ambient operating temperature of the fluid, which in turn results in efficient heat dissipation in the transmission and also results the good service life of the fluid.

Equivalents:

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.
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 system having at least one of A, B, and C" would include but not be limited to systems 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 system having at least one of A, B, or C" would include but not be limited to systems 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 Numerals:
Referral numeral Description
100 Air cooler unit
101 First heat exchanging member
102 Second heat exchanging member
103 Fans
104 Fluid inlet manifold
105 Fluid outlet manifold
106 Mounting bracket
107 Plurality of tubes
108 Clamps
109 Fluid inlet tube
110 Fluid outlet tube
111 Connecting bracket
112 Mounting member
200 Cooling system
201, 202 Fluid lines
300 Water cooler unit
301 Cylindrical structure
302 Platform
303 Lid
400 Transmission

Documents

Application Documents

# Name Date
1 201821010665-STATEMENT OF UNDERTAKING (FORM 3) [22-03-2018(online)].pdf 2018-03-22
2 201821010665-REQUEST FOR EXAMINATION (FORM-18) [22-03-2018(online)].pdf 2018-03-22
3 201821010665-FORM 18 [22-03-2018(online)].pdf 2018-03-22
4 201821010665-FORM 1 [22-03-2018(online)].pdf 2018-03-22
5 201821010665-DRAWINGS [22-03-2018(online)].pdf 2018-03-22
6 201821010665-DECLARATION OF INVENTORSHIP (FORM 5) [22-03-2018(online)].pdf 2018-03-22
7 201821010665-COMPLETE SPECIFICATION [22-03-2018(online)].pdf 2018-03-22
8 201821010665-FORM-8 [24-03-2018(online)].pdf 2018-03-24
9 201821010665-FORM-26 [17-07-2018(online)].pdf 2018-07-17
10 Abstract1.jpg 2018-08-11
11 201821010665-Proof of Right (MANDATORY) [22-09-2018(online)].pdf 2018-09-22
12 201821010665-OTHERS(ORIGINAL UR 6(1A) FORM 1)-270918.pdf 2018-12-26
13 201821010665-FER.pdf 2020-03-09
14 201821010665-FER_SER_REPLY [09-09-2020(online)].pdf 2020-09-09
15 201821010665-PatentCertificate08-11-2023.pdf 2023-11-08
16 201821010665-IntimationOfGrant08-11-2023.pdf 2023-11-08

Search Strategy

1 2019-12-2017-16-01_20-12-2019.pdf

ERegister / Renewals

3rd: 24 Jan 2024

From 22/03/2020 - To 22/03/2021

4th: 24 Jan 2024

From 22/03/2021 - To 22/03/2022

5th: 24 Jan 2024

From 22/03/2022 - To 22/03/2023

6th: 24 Jan 2024

From 22/03/2023 - To 22/03/2024

7th: 24 Jan 2024

From 22/03/2024 - To 22/03/2025

8th: 06 Mar 2025

From 22/03/2025 - To 22/03/2026