US20020077210A1 - Integrated heat exchange circuit for a drive line power transfer mechanism - Google Patents
Integrated heat exchange circuit for a drive line power transfer mechanism Download PDFInfo
- Publication number
- US20020077210A1 US20020077210A1 US09/742,828 US74282800A US2002077210A1 US 20020077210 A1 US20020077210 A1 US 20020077210A1 US 74282800 A US74282800 A US 74282800A US 2002077210 A1 US2002077210 A1 US 2002077210A1
- Authority
- US
- United States
- Prior art keywords
- fluid
- power transfer
- transfer mechanism
- cooling conduit
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0483—Axle or inter-axle differentials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/037—Gearboxes for accommodating differential gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2186—Gear casings
- Y10T74/2189—Cooling
Definitions
- the present invention generally relates to drive line power transfer mechanisms and more particularly to drive line power transfer mechanisms that include a cooling system.
- Modern vehicles typically include an axle assembly having a housing and a differential assembly.
- the housing includes a cavity into which the differential assembly is positioned.
- the differential assembly is rotatably supported by the housing within the cavity.
- the differential assembly is mechanically coupled to the vehicle engine by a drive shaft.
- the differential assembly is also coupled to the vehicle drive wheels via a pair of axle shafts.
- the differential assembly regulates drive torque between the axle shafts, thereby permitting the shafts to rotate at different velocities as when the vehicle is operated in a cornering maneuver.
- the present invention provides a drive line power transfer mechanism having a housing, a power transfer mechanism, a first fluid, at least one cooling conduit and a fluid source.
- the housing has a wall member that defines a cavity.
- the power transfer mechanism is positioned within the cavity.
- the first fluid is at least partially contained within a cavity.
- the first fluid lubricates and extracts heat from the power transfer mechanism during the operation of the drive line power transfer mechanism.
- the cooling conduit is formed within the wall member.
- the fluid source is in fluid communication with the fluid conduit and passes a second fluid through the cooling conduit to draw heat out of the housing that is generated by the operation of the drive line power transfer mechanism.
- a method for cooling an axle assembly is also provided.
- FIG. 1 is a schematic view of an exemplary motor vehicle into which an axle assembly constructed in accordance with the teachings of the present invention is incorporated;
- FIG. 2 is an exploded perspective view of the axle assembly of FIG. 1;
- FIG. 3A is a sectional view of the axle assembly taken along the line 3 A- 3 A of FIG. 2;
- FIG. 3B is a sectional view similar to that of FIG. 3A but illustrating an alternate construction technique for forming the coolant conduit in the housing;
- FIG. 3C is a perspective view illustrating a second alternate construction technique for forming the cooling conduit in the housing.
- FIG. 4 is a schematic view of the axle assembly of FIG. 1 illustrating the fluid source in greater detail.
- an axle assembly constructed in accordance with the teachings of the present invention is generally indicated by reference numeral 10 .
- the axle assembly 10 is illustrated to form a portion of a drive train 12 for an exemplary motor vehicle 14 .
- the drive train 12 is also shown to include an engine 16 , a transmission 18 having an output shaft 20 and a propeller shaft 22 connecting the output shaft 20 to a pinion shaft 24 of the axle assembly 10 .
- the axle assembly 10 includes an axle housing 30 , a differential assembly 32 , a pair of axle shafts 34 and 36 that are interconnected to left and right drive wheels 38 and 40 , respectively and a fluid source 42 .
- the axle housing 30 has a wall member 44 that defines a differential cavity 46 into which the differential assembly 32 is rotatably supported.
- the pinion shaft 24 has a pinion gear 48 that is fixed thereto which drives a ring gear 50 that is fixed to a differential case 52 of the differential assembly 32 .
- a gearset (not specifically shown) supported within the differential case 52 transfers rotary power from the differential case 52 to a pair of output shafts 54 and 56 that are coupled to the axle shafts 34 and 36 , respectively, and facilitate relative rotation (i.e., differentiation) therebetween.
- rotary power form the engine 16 is transmitted to the output shafts 54 and 56 for driving the left and right drive wheels 38 and 40 via the transmission 18 , the propeller shaft 22 , the pinion shaft 24 , the differential case 52 and the differential gearset.
- axle assembly is shown in a rear-wheel drive application
- teachings of the present invention may be incorporated into trailing axles, transaxles for use in front-wheel drive vehicles, transfer cases for use in four-wheel drive vehicles and/or any other known driveline application.
- a lubricant 60 is employed to reduce the level of friction between the components of the axle assembly 10 , as well as to extract heat from the differential assembly 32 .
- the lubricant 60 collects in a lubricant pooling portion 62 of the differential cavity 46 , thereby permitting the lubricant 60 to splash onto the differential assembly 32 as well as to conduct heat to the axle housing 30 .
- the axle housing 30 is shown to include at least one cooling conduit 70 that is formed in the wall member 44 .
- the cooling conduit 70 is defined by a plurality of U-shaped bends 72 that are wholly formed within the wall member 44 .
- the cooling conduit 70 facilitates the circulation of a cooling fluid through the axle housing 30 in a manner that will be discussed in detail, below.
- the cooling conduit 70 is formed in the wall member 44 with a removable tool, such as a wash-out mandrel 78 formed from salt (partially illustrated), when the axle housing 30 is cast.
- the cooling conduit 70 may be formed as shown in FIGS. 3B and 3C.
- the cooling conduit 70 a is formed with a rotary cutting tool, such as a drill 80 , in a machining operation.
- the rotary cutting tool is operable for cutting a plurality of coolant passages 82 into the axle housing 30 a , which are subsequently plugged at predetermined locations to cause a coolant to flow through the axle housing 30 a in a predetermined manner.
- the cooling conduit 70 b is formed from a pre-formed tube assembly 90 which is cast directly into the wall member 44 b that forms the axle housing 30 b .
- the plurality of coolant passages 82 may be formed using a lost-foam process wherein the axle housing 30 is formed by several layers of pre-formed foam, with two layers of the foam intersecting and defining the plurality of coolant passages 82 .
- a suitable material such as sand, is packed into the portion of the coolant passages 82 that is formed into each of the layers of foam and the layers of foam are stacked upon one another.
- the metal replaces the foam, permitting the material (e.g., sand) that was between the layers of foam to form the plurality of coolant passages 82 .
- the material in the plurality of coolant passages 82 is thereafter washed out.
- the fluid source 42 is illustrated to be in fluid communication with the cooling conduit 70 .
- the fluid source 42 includes a fluid pump 92 for circulating a coolant 100 and a heat exchanger 94 for extracting at least a portion of the heat that is absorbed by the coolant 100 .
- Heated lubricant 60 is shown to collect in the lubricant pooling portion 62 of the differential cavity 46 and conduct into the axle housing 30 .
- the heat absorbed by the axle housing 30 is transmitted to the coolant conduit 70 where it is absorbed by the coolant 100 .
- the pump 92 circulates the coolant 100 from the cooling conduit 70 to the heat exchanger 94 where at least a portion of the heat absorbed by the coolant 100 is rejected.
- the heat exchanger 94 108 includes a plurality of tubes 108 and a plurality of fins 110 .
- the tubes conduct heat from coolant 100 to the fins 110 , where it is then rejected to the air 112 proximate the heat exchanger 94 .
- the heat exchanger 94 is part of a multi-fluid heat exchanger 94 (illustrated in FIG. 1) that is employed to reject heat from a plurality of vehicle fluids.
- the multi-fluid heat exchanger 94 also includes a portion 122 that facilitates the rejection of heat from an engine coolant 124 and a portion 126 that facilitates the rejection of heat from an automatic transmission fluid 128 .
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
- 1. Technical Field
- The present invention generally relates to drive line power transfer mechanisms and more particularly to drive line power transfer mechanisms that include a cooling system.
- 2. Discussion
- Modern vehicles typically include an axle assembly having a housing and a differential assembly. The housing includes a cavity into which the differential assembly is positioned. The differential assembly is rotatably supported by the housing within the cavity. The differential assembly is mechanically coupled to the vehicle engine by a drive shaft. The differential assembly is also coupled to the vehicle drive wheels via a pair of axle shafts. The differential assembly regulates drive torque between the axle shafts, thereby permitting the shafts to rotate at different velocities as when the vehicle is operated in a cornering maneuver.
- During the operation of the vehicle, friction between the various components of the axle assembly can cause the components to heat up and decrease the useful life of the components of the axle assembly. One solution that has been proposed is the circulation of a lubricating fluid through a heat exchanger located remotely from the axle assembly. One drawback associated with this approach is that due to the viscosity of the axle assembly lubricating fluid, this fluid is difficult to pump to a remote location, particularly when the ambient temperature is relatively cold.
- Another solution that has been proposed is the use of a separate heat exchanger within the cavity of the axle housing. The heat exchanger is mounted to the interior of the axle housing such that it is suspended within a pool of lubricating fluid. One drawback associated with this approach is that any fluid that leaks from the heat exchanger will contaminate the lubricating fluid. In severe cases, the lubricating characteristics of the lubricating fluid can be destroyed if a sufficient quantity of fluid leaks from the heat exchanger.
- Accordingly, the remains in need art for an axle assembly having an improved cooling system that provides adequate cooling of the axle lubricant while minimizing the risk of contamination of the axle lubricant in the event of a coolant leak.
- In one preferred form, the present invention provides a drive line power transfer mechanism having a housing, a power transfer mechanism, a first fluid, at least one cooling conduit and a fluid source. The housing has a wall member that defines a cavity. The power transfer mechanism is positioned within the cavity. The first fluid is at least partially contained within a cavity. The first fluid lubricates and extracts heat from the power transfer mechanism during the operation of the drive line power transfer mechanism. The cooling conduit is formed within the wall member. The fluid source is in fluid communication with the fluid conduit and passes a second fluid through the cooling conduit to draw heat out of the housing that is generated by the operation of the drive line power transfer mechanism. A method for cooling an axle assembly is also provided.
- Additional advantages and features of the present invention will become apparent from the subsequent description and the appended claims, taken in conjunction with the accompanying drawings, wherein:
- FIG. 1 is a schematic view of an exemplary motor vehicle into which an axle assembly constructed in accordance with the teachings of the present invention is incorporated;
- FIG. 2 is an exploded perspective view of the axle assembly of FIG. 1;
- FIG. 3A is a sectional view of the axle assembly taken along the
line 3A-3A of FIG. 2; - FIG. 3B is a sectional view similar to that of FIG. 3A but illustrating an alternate construction technique for forming the coolant conduit in the housing;
- FIG. 3C is a perspective view illustrating a second alternate construction technique for forming the cooling conduit in the housing; and
- FIG. 4 is a schematic view of the axle assembly of FIG. 1 illustrating the fluid source in greater detail.
- With reference to FIG. 1 of the drawings, an axle assembly constructed in accordance with the teachings of the present invention is generally indicated by
reference numeral 10. Theaxle assembly 10 is illustrated to form a portion of adrive train 12 for anexemplary motor vehicle 14. Thedrive train 12 is also shown to include anengine 16, atransmission 18 having anoutput shaft 20 and apropeller shaft 22 connecting theoutput shaft 20 to apinion shaft 24 of theaxle assembly 10. - With additional reference to FIG. 2, the
axle assembly 10 includes anaxle housing 30, adifferential assembly 32, a pair ofaxle shafts right drive wheels fluid source 42. Theaxle housing 30 has awall member 44 that defines adifferential cavity 46 into which thedifferential assembly 32 is rotatably supported. Thepinion shaft 24 has apinion gear 48 that is fixed thereto which drives aring gear 50 that is fixed to adifferential case 52 of thedifferential assembly 32. A gearset (not specifically shown) supported within thedifferential case 52 transfers rotary power from thedifferential case 52 to a pair ofoutput shafts axle shafts engine 16 is transmitted to theoutput shafts right drive wheels transmission 18, thepropeller shaft 22, thepinion shaft 24, thedifferential case 52 and the differential gearset. Those skilled in the art will understand that although the axle assembly is shown in a rear-wheel drive application, the teachings of the present invention may be incorporated into trailing axles, transaxles for use in front-wheel drive vehicles, transfer cases for use in four-wheel drive vehicles and/or any other known driveline application. - During the operation of the
axle assembly 10, friction is generated between the various components of theaxle assembly 10. Alubricant 60 is employed to reduce the level of friction between the components of theaxle assembly 10, as well as to extract heat from thedifferential assembly 32. Thelubricant 60 collects in alubricant pooling portion 62 of thedifferential cavity 46, thereby permitting thelubricant 60 to splash onto thedifferential assembly 32 as well as to conduct heat to theaxle housing 30. - In FIG. 3A, the
axle housing 30 is shown to include at least onecooling conduit 70 that is formed in thewall member 44. In the particular embodiment illustrated, thecooling conduit 70 is defined by a plurality of U-shapedbends 72 that are wholly formed within thewall member 44. Thecooling conduit 70 facilitates the circulation of a cooling fluid through theaxle housing 30 in a manner that will be discussed in detail, below. As shown, thecooling conduit 70 is formed in thewall member 44 with a removable tool, such as a wash-outmandrel 78 formed from salt (partially illustrated), when theaxle housing 30 is cast. - Alternatively, the
cooling conduit 70 may be formed as shown in FIGS. 3B and 3C. In FIG. 3B, thecooling conduit 70 a is formed with a rotary cutting tool, such as adrill 80, in a machining operation. The rotary cutting tool is operable for cutting a plurality ofcoolant passages 82 into theaxle housing 30 a, which are subsequently plugged at predetermined locations to cause a coolant to flow through theaxle housing 30 a in a predetermined manner. In FIG. 3C, the coolingconduit 70 b is formed from apre-formed tube assembly 90 which is cast directly into thewall member 44 b that forms theaxle housing 30 b. Those skilled in the art will also understand that the plurality ofcoolant passages 82 may be formed using a lost-foam process wherein theaxle housing 30 is formed by several layers of pre-formed foam, with two layers of the foam intersecting and defining the plurality ofcoolant passages 82. A suitable material, such as sand, is packed into the portion of thecoolant passages 82 that is formed into each of the layers of foam and the layers of foam are stacked upon one another. When molten metal is introduced to the mold, the metal replaces the foam, permitting the material (e.g., sand) that was between the layers of foam to form the plurality ofcoolant passages 82. The material in the plurality ofcoolant passages 82 is thereafter washed out. - In FIG. 4, the operation of the
axle assembly 10 is illustrated. Thefluid source 42 is illustrated to be in fluid communication with the coolingconduit 70. In the particular example illustrated, thefluid source 42 includes afluid pump 92 for circulating acoolant 100 and aheat exchanger 94 for extracting at least a portion of the heat that is absorbed by thecoolant 100. - Heated
lubricant 60 is shown to collect in thelubricant pooling portion 62 of thedifferential cavity 46 and conduct into theaxle housing 30. The heat absorbed by theaxle housing 30 is transmitted to thecoolant conduit 70 where it is absorbed by thecoolant 100. Thepump 92 circulates thecoolant 100 from the coolingconduit 70 to theheat exchanger 94 where at least a portion of the heat absorbed by thecoolant 100 is rejected. Preferably, theheat exchanger 94 108 includes a plurality oftubes 108 and a plurality offins 110. The tubes conduct heat fromcoolant 100 to thefins 110, where it is then rejected to theair 112 proximate theheat exchanger 94. Preferably, theheat exchanger 94 is part of a multi-fluid heat exchanger 94 (illustrated in FIG. 1) that is employed to reject heat from a plurality of vehicle fluids. In the particular example provided, themulti-fluid heat exchanger 94 also includes aportion 122 that facilitates the rejection of heat from anengine coolant 124 and aportion 126 that facilitates the rejection of heat from anautomatic transmission fluid 128. - While the invention has been described in the specification and illustrated in the drawings with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention as defined in the claims. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment illustrated by the drawings and described in the specification as the best mode presently contemplated for carrying out this invention, but that the invention will include any embodiments falling within the description of the appended claims.
Claims (24)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/742,828 US6432018B1 (en) | 2000-12-20 | 2000-12-20 | Integrated heat exchange circuit for an axle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US09/742,828 US6432018B1 (en) | 2000-12-20 | 2000-12-20 | Integrated heat exchange circuit for an axle |
Publications (2)
Publication Number | Publication Date |
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US20020077210A1 true US20020077210A1 (en) | 2002-06-20 |
US6432018B1 US6432018B1 (en) | 2002-08-13 |
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Application Number | Title | Priority Date | Filing Date |
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US09/742,828 Expired - Lifetime US6432018B1 (en) | 2000-12-20 | 2000-12-20 | Integrated heat exchange circuit for an axle |
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US (1) | US6432018B1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2375107A1 (en) * | 2010-04-12 | 2011-10-12 | CNH Österreich GmbH | Active cooling system for drive components of vehicles. |
DE102010061286A1 (en) * | 2010-12-16 | 2012-06-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling device for axle transmission, particularly front axle transmission, has two cooling water loops, which are connected with each other by connection line arranged outside transmission housing |
DE102010061285A1 (en) | 2010-12-16 | 2012-06-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Gear e.g. front axle gear, for e.g. passenger car, has cooling water loops connected with external connections i.e. connection pieces, in area of ends of loops, where connection of connection pieces to loops is interchanged |
CN102765320A (en) * | 2011-05-04 | 2012-11-07 | 现代自动车株式会社 | Heat exchanging system for vehicle and control method thereof |
CN103282696A (en) * | 2011-01-06 | 2013-09-04 | 克莱斯勒集团有限责任公司 | Axle system |
DE102016011664B4 (en) * | 2015-09-29 | 2020-03-05 | Mazda Motor Corporation | Gear and manufacturing process therefor |
DE102020211397A1 (en) | 2020-09-10 | 2022-03-10 | Magna Pt B.V. & Co. Kg | Gear arrangement with cooling |
DE102023003152A1 (en) | 2023-07-31 | 2024-05-23 | Mercedes-Benz Group AG | Housing part for a differential gear device |
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US6997284B1 (en) * | 2001-06-26 | 2006-02-14 | Spicer Technology, Inc. | Lubricant cooling system for a motor vehicle axle |
US20030188937A1 (en) * | 2002-04-03 | 2003-10-09 | Schneider Mark M. | System for controlling the temperature of a vehicle drive train component including engine coolant circulation |
US7188699B2 (en) * | 2004-02-11 | 2007-03-13 | American Axle & Manufacturing, Inc. | Axle assembly with cooling pump |
US8714310B2 (en) * | 2007-08-22 | 2014-05-06 | Cnh America Llc | Axle cooling using hydraulic return oil |
US7845471B2 (en) * | 2007-08-22 | 2010-12-07 | Cnh America Llc | External axle cooling system |
US8715127B2 (en) * | 2008-01-04 | 2014-05-06 | American Axle & Manufacturing, Inc. | Axle assembly with axle housing assembly having air scoops for cooling |
US8080909B2 (en) * | 2009-05-19 | 2011-12-20 | Ford Global Technologies, Llc | Cooling system and method for an electric motor |
US8475314B2 (en) | 2010-01-28 | 2013-07-02 | American Axle & Manufacturing, Inc. | Differential assembly with features for improved lubrication |
US20140260788A1 (en) | 2011-10-05 | 2014-09-18 | Schaeffler Technologies Gmbh & Co. Kg | Gearbox device with cooled dry-sump area |
DE102011084038A1 (en) | 2011-10-05 | 2012-11-22 | Schaeffler Technologies AG & Co. KG | Electric motor drive unit for power transmission unit of motor vehicle, has heat exchanger that is contacted with heat exchange fluid flowing through housing of electric motor |
DE102011084030A1 (en) | 2011-10-05 | 2013-04-11 | Schaeffler Technologies AG & Co. KG | Transmission unit for use in electromotive transmission device for providing drive torque for vehicle such as passenger vehicle, commercial vehicle and bus, has transmission section, transmission case section and oil sump area |
DE112014001647T5 (en) | 2013-03-28 | 2015-12-24 | Dana Canada Corporation | A heat exchanger and system for heating and cooling a fluid circulating in a housing |
US9360104B1 (en) | 2014-12-18 | 2016-06-07 | Ford Global Technologies, Llc | Driveline thermal and lubricant flow management |
US11060601B2 (en) | 2019-12-17 | 2021-07-13 | Ford Global Technologies, Llc | Differential with passive thermal-management system |
DE102021123351A1 (en) | 2021-09-09 | 2023-03-09 | Schaeffler Technologies AG & Co. KG | Drive arrangement for a vehicle and shell device for the drive arrangement |
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US2687784A (en) * | 1951-05-31 | 1954-08-31 | Falk Corp | Lubricant cooling for gear sets |
US3770074A (en) | 1972-04-24 | 1973-11-06 | Gen Motors Corp | Reduction drive for electric axle |
CA1098843A (en) | 1978-10-31 | 1981-04-07 | Versatile Manufacturing Company, A Division Of Versatile Cornat Corporation | Lubrication pump and filter for axle assemblies |
US4461373A (en) | 1981-12-30 | 1984-07-24 | Dresser Industries, Inc. | Drive axle assembly |
US4655326A (en) | 1985-11-29 | 1987-04-07 | Dana Corporation | Cooling system for planetary wheel end with wet brake |
US4915193A (en) * | 1989-07-03 | 1990-04-10 | Deere & Company | Air/oil level control for transmission lubrication |
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US5622051A (en) | 1995-06-26 | 1997-04-22 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Axle driving apparatus with cooling tubing |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2375107A1 (en) * | 2010-04-12 | 2011-10-12 | CNH Österreich GmbH | Active cooling system for drive components of vehicles. |
ITTO20100281A1 (en) * | 2010-04-12 | 2011-10-13 | Cnh Osterreich Gmbh | ACTIVE COOLING SYSTEM FOR VEHICLE TRANSMISSION COMPONENTS |
DE102010061286A1 (en) * | 2010-12-16 | 2012-06-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling device for axle transmission, particularly front axle transmission, has two cooling water loops, which are connected with each other by connection line arranged outside transmission housing |
DE102010061285A1 (en) | 2010-12-16 | 2012-06-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Gear e.g. front axle gear, for e.g. passenger car, has cooling water loops connected with external connections i.e. connection pieces, in area of ends of loops, where connection of connection pieces to loops is interchanged |
DE102010061286B4 (en) * | 2010-12-16 | 2021-04-29 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling device for an axle drive |
CN103282696A (en) * | 2011-01-06 | 2013-09-04 | 克莱斯勒集团有限责任公司 | Axle system |
EP2661569B1 (en) * | 2011-01-06 | 2020-03-04 | Fca Us Llc | Axle system |
CN102765320A (en) * | 2011-05-04 | 2012-11-07 | 现代自动车株式会社 | Heat exchanging system for vehicle and control method thereof |
DE102011056085B4 (en) * | 2011-05-04 | 2021-01-21 | Hyundai Motor Company | HEAT EXCHANGER SYSTEM FOR A VEHICLE AND CONTROL PROCEDURE OF IT |
DE102016011664B4 (en) * | 2015-09-29 | 2020-03-05 | Mazda Motor Corporation | Gear and manufacturing process therefor |
DE102020211397A1 (en) | 2020-09-10 | 2022-03-10 | Magna Pt B.V. & Co. Kg | Gear arrangement with cooling |
DE102023003152A1 (en) | 2023-07-31 | 2024-05-23 | Mercedes-Benz Group AG | Housing part for a differential gear device |
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US6432018B1 (en) | 2002-08-13 |
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