WO2003004909A1 - Breather device for speed-change devices - Google Patents
Breather device for speed-change devices Download PDFInfo
- Publication number
- WO2003004909A1 WO2003004909A1 PCT/JP2002/006686 JP0206686W WO03004909A1 WO 2003004909 A1 WO2003004909 A1 WO 2003004909A1 JP 0206686 W JP0206686 W JP 0206686W WO 03004909 A1 WO03004909 A1 WO 03004909A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- breather
- case
- transmission case
- breather device
- Prior art date
Links
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
-
- 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
-
- 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
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
-
- 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
Definitions
- the present invention relates to a breather device for preventing pressure from confining into a space in a case of a transmission, and more particularly, to a technique for improving a ventilation ability of a transmission mounted on a vehicle with respect to inclination.
- a breather device that prevents the pressure from being trapped in the transmission case has been used in a vertical-type transmission for front engine rear drive (FR) vehicles mounted on vehicles such as 4WD off-road vehicles. Since it is expected that the transmission case will have a large front-rear inclination during traveling, a labyrinth structure is formed in the transmission case to prevent the breather from blowing, and the exit side of the labyrinth structure is on the upper front side of the transmission case. It is configured to open to the outside air via a breather pipe through a breather plug arranged in the air conditioner.
- an object of the present invention is to provide a breather device for a transmission, which can be realized even when the vehicle is running on a steep slope, which can be realized with a minimum modification to a conventional transmission case. Also, the present invention provides a method for preventing a breather from blowing on a steep slope. It is another object of the present invention to realize the transmission without substantially increasing the outer shape of the transmission. Disclosure of the invention
- the object is to provide a breather device for communicating a space inside a case of a transmission with the outside air, wherein a vent opening to the space inside the case is provided at an intermediate position in an axial direction of the case at an upper portion of the transmission case. Is achieved.
- the ventilation port connected to the breather device is located at the middle part in the axial direction at the top of the transmission case. Oil can be prevented from entering. Therefore, it is possible to prevent the occurrence of breather blowing due to the intrusion of oil into the ventilation holes both when the transmission is tilted forward and backward.
- the ventilation port is located at an intermediate position that is displaced in the front-rear direction from a central position in the axial direction of the space in the case, and is opened to the outside air through ventilation means that extends in a direction opposite to the displacement direction. It is more effective to adopt the configuration described above.
- the position of the ventilation port is determined by the combination of the shift of the position of the ventilation port in the front-rear direction with respect to the center of the transmission case in the front-rear direction and the direction of the ventilation means facing in the opposite direction.
- the front end of the ventilation means goes down.
- the front end of the ventilation means goes up. Blowing is prevented both when the transmission leans forward and backward.
- the transmission case includes a reinforcing rib formed of a wall extending in an anterior-posterior direction at an upper portion of a peripheral wall and extending outward from the peripheral wall, and defining a groove-shaped space therein. It is possible to adopt a configuration in which a ventilation hole that opens to the groove-shaped space is provided on a side wall of the reinforcing rib.
- the height of the ventilation port can be set higher than the position of the general peripheral surface of the transmission case, so that the intrusion of oil into the ventilation port due to fluctuations in the oil level is more reliably prevented. be able to. Moreover, there is no need to change the shape of the transmission case. In any one of the above configurations, it is also effective that the vent is located on the outer peripheral side of a non-rotating member of a transmission mechanism housed in a transmission case.
- the non-rotating member of the transmission mechanism functions as a means for shielding oil that is pumped up by another rotating member, so that it is possible to more reliably prevent oil from entering the ventilation port.
- the ventilation means may include a breather pipe connected to the ventilation port.
- the above-described complementary breather blowing prevention action can be obtained by using a breather pipe directly attached to the ventilation port as the ventilation means, so that the breather blowing can be generated without substantial change of the transmission case. Can be prevented both when the transmission is tilted forward and backward.
- the ventilation means is provided integrally with the transmission case and separated from a space in the transmission case, and includes a breather chamber communicating with the space in the transmission case through the ventilation port. It can also be configured.
- the breather chamber functions as a buffer space that blocks oil flow when it enters the ventilation means through the ventilation port, so that the occurrence of the breather blow is more reliable both when the transmission is tilted forward and backward. Can be prevented.
- the breather chamber is integrated with the transmission case, the effect of the addition of the breather chamber on the outer shape of the transmission case can be minimized.
- the ventilation means may include a breather chamber separate from the transmission case, and may communicate with the space inside the transmission case through the ventilation port.
- the breather chamber functions as a buffer space that blocks oil flow when it enters the ventilation means through the ventilation port, so that the occurrence of the breather blow is more reliable both when the transmission is tilted forward and backward. Can be prevented.
- the breather room is separate from the transmission case, it is not necessary to substantially change the structure of the transmission case accompanying the addition of the breather room.
- the breather chamber is a space that is long in the front-rear direction, and communicates with the space inside the transmission case through the ventilation port at one end thereof. It is more effective to adopt a configuration in which the other end is open to the outside air via a breather pipe.
- the breather chamber since the breather chamber is long in the front-rear direction, it functions as a buffer space that is long in the inclining direction. Therefore, occurrence of breather blowing can be more reliably prevented when the transmission is tilted forward and backward.
- the breather chamber has a labyrinth structure that restricts a flow of a fluid in the chamber.
- the breather chamber's lapillin structure prevents the oil from being discharged to the outside air in the ventilation state. Blowing can be prevented more effectively.
- the present invention relates to a breather device for communicating a space inside a case of a transmission with outside air, wherein the breather device is located at a center position between a front wall and a rear wall of a transmission case accommodating a transmission mechanism.
- a vent that communicates with the space in the case at a position offset in one direction, and a vent that communicates with the vent and extends from the central position to a position offset by at least the same amount in the other direction.
- the above configuration is particularly effective when the transmission is a vertically disposed transmission mounted on a vehicle with the case axis directed in the vehicle front-rear direction.
- FIG. 1 is an axial cross-sectional view of a transmission case to which the breather device according to the first embodiment of the present invention is applied
- FIG. 2 is a partial cross-sectional view showing a relationship between the breather device and the transmission mechanism in the first embodiment.
- FIG. 3 is a side view of a portion similar to FIG. 1, and FIG. 3 is a plan view of a transmission case of the first embodiment.
- Fig. 4 is a partial side view of the transmission case according to the first embodiment, which is an enlarged view of the bridge device.
- Fig. 5 is a partial plan view of the transmission case of the first embodiment, which is an enlarged view of the bridge device.
- FIG. 6 is an enlarged partial side view of a transmission case showing a breather apparatus of the second embodiment
- FIG. 7 is an enlarged partial plan view of the transmission case of the second embodiment
- FIG. 9 is an enlarged partial side view of a transmission case showing a bridge device
- FIG. 9 is an enlarged partial plan view of a transmission case of a third embodiment.
- the breather device for communicating the internal space of the transmission case 1 with the outside air has a torque converter housing (not shown) connected to an axial front side (left side in the figure) and a rear side (right side in the figure).
- a ventilation opening 10 is provided at the upper part of the transmission case 1 to which an extension housing and a four-wheel drive transfer (not shown) are connected, at an intermediate position in the axial direction of the case.
- the ventilation port 10 is located at an intermediate position slightly shifted rearward from the axial center position of the interior space of the case. And is opened to the outside air by air supply / exhaust means such as a breather valve (not shown).
- the space inside case 1 referred to here is the front wall (usually composed of an oil pump attached to the opening of the transmission case) 1 A that closes the transmission case 1 and the torque converter housing with the input shaft penetrating.
- the rear wall separating the transmission case 1 from the extension housing or the transfer for four-wheel drive through the output shaft (usually composed of a rear wall integrated with the transmission case 1)
- This space is a space surrounded by the peripheral wall 11 of the transmission case 1 in the circumferential direction and accommodating the rotating members of the transmission mechanism (not shown) and the friction members associated therewith. Since this space is an oil-lubricated space for the speed change mechanism, it is an oil-tight closed space containing the speed change mechanism, and is substantially isolated from the outside air. Therefore, the effective length in the front-rear direction of the inner space of Case 1 which is an oil-tight space, as indicated by reference symbol L in FIG. The center of this length is the case It is the central position of the inner space in the front-rear direction.
- the transmission case 1 has a reinforcing rib 12 formed of a wall which extends in the front-rear direction at an upper portion of the peripheral wall 11 and extends outward from the peripheral wall 11 to define a grooved space C therein. For this reason, a ventilation hole 10 that opens into the grooved space C is provided in the side wall 12 a of the reinforcing rib 12, and an elbow-shaped breather plug 21 is attached to the ventilation hole 10 horizontally. .
- the ventilation port 10 is further provided with a rotating member of a transmission mechanism in the transmission case 1, for example, each component of a planetary gear, a clutch drum, and oil pumped up by rotation of a rotating race of a one-way clutch.
- the shielding means is located on the outer peripheral side.
- the outer peripheral side of the transmission case 1 is supported by the inner peripheral spline 12 s of the peripheral wall of the transmission case 1 with respect to the outer peripheral side, and the brake friction material 41 arranged substantially at the center in the axial direction of the case.
- the extension tube part of the brake piston 42 for the engagement operation extends from the hydraulic servo cylinder built in the rear wall of the case, and the tip of the extension tube is fitted to the spline 12 s by stopping and rotating. Since it has reached the end of the brake friction material 41, the position where the ventilation port 10 is opened at the axial position corresponding to the outer peripheral side of the extension tube portion is determined.
- the ventilation means 2 has one end connected to the breather plug 21 of the ventilation port 10 and the breather plug 21 and the other end connected to the pipe on the vehicle side. And a breather pipe 22 which is finally connected to a supply / exhaust means such as the breather valve.
- the breather plug 21 is a swivel joint that is rotatable around the horizontal axis of the ventilation port 10 in a leak-proof state, and the distal end is a hose joint that can be inserted into the breather pipe 22 to prevent leakage.
- the breather plug 21, the breather pipe 22, and the connection portion are prevented from coming off by screwing a hose band 23 fitted on the outer periphery of the breather pipe 22.
- the breather pipe 22 extends substantially horizontally forward along the reinforcing ribs 12 and terminates at the outer peripheral position of the torque converter housing connected to the front side of the transmission case 1. Fittings 24 are installed.
- the ventilation port 10 connected to the breather device is provided at the upper part of the transmission case 1.
- the ventilation port 10 By being located at the intermediate portion, it is possible to prevent oil from entering the ventilation port 10 due to fluctuations in the oil level both when the transmission is tilted in the front-rear direction. Therefore, it is possible to prevent the occurrence of the blow of the blower due to the intrusion of the oil into the ventilation port 10 when the transmission is tilted forward and backward.
- the ventilation port 10 is shifted rearward by a predetermined amount, so that a margin for the shift is secured even for an oil level that becomes higher toward the front side. As a result, oil is prevented from entering the ventilation port 10.
- the transmission case 1 is tilted rearward, there is less room for the oil level to rise than when the transmission port 10 is tilted forward by the above-described displacement of the ventilation port 10, but in this case, the front side of the breather pipe 22 is connected to the ventilation port Since it is higher than the 10 position, even if oil enters the ventilation port 10, the occurrence of breather blowing is prevented.
- the ventilation port 10 is provided in the side wall 12 a of the reinforcing rib 12, which is a wall extending outward at the uppermost portion from the general peripheral wall 11 of the transmission case 1. Since the position of the ventilation port 10 with respect to the oil level is increased without changing the shape of the transmission case 1, the possibility of oil being sucked into the ventilation port 10 is further reduced. In addition, by arranging the ventilation holes 10 sideways with respect to the side walls 12 a of the reinforcing ribs 12, the transmission plug 1 and the breather pipe 22 do not protrude from the transmission case 1, and the transmission is mounted on the vehicle. The mountability of the device is not impaired by the adoption of this breather device.
- FIGS. 6 and 7 show a second embodiment of the present invention.
- This embodiment is different from the first embodiment in that a breather chamber 3 is attached to the ventilation means 2.
- the ventilation means 2 in this embodiment is provided integrally with the transmission case 1 so as to be separated from the space inside the transmission case, and communicates with the space inside the transmission case through a vent 10 (see FIG. 7).
- 3 is provided.
- the breather chamber 3 has a long space in the front-rear direction as shown in a plan view in FIG. 7, and communicates with the space inside the transmission case through a vent 10 at one end (rear side in this embodiment).
- the end side (also the front side) is the breather plug 21 and It is configured to be open to the outside air via the breather pipe 22 on the same route as the previous embodiment.
- a configuration is adopted in which the breather chamber 3 is interposed between the vent 10 and the breather plug 21 as compared with the previous embodiment.
- the breather chamber 3 is defined by using the front portion of the reinforcing ribs 12 of the transmission case 1 in the previous embodiment, and generally projects the reinforcing ribs 12 from the general peripheral surface 11 of the transmission case.
- the space has a height corresponding to the amount and a width corresponding to the width of the reinforcing ribs 12, and is generally an oval space in plan view.
- the reinforcing rib 12 is arranged to be slightly offset leftward with respect to the center line of the reinforcing rib 12.
- the bottom wall 30 of the breather chamber 3 is formed at substantially the same position as the general peripheral surface 11 of the transmission case 1 so as not to hinder the arrangement of the mechanism in the transmission case 1.
- a vent 10 is formed at the rear.
- the upper surface of the breather chamber 3 is opened and closed by screwing the lid 31.
- the breather plug 21 is attached to the front side of the lid 31 in the same manner as the attachment of the breather plug 21 to the vent 10 in the previous embodiment.
- the breather chamber 3 has a labyrinth structure that regulates the flow of fluid in the chamber.
- three staggered vertical walls 32 constituting the labyrinth structure are provided so as to be connected to a thick portion for screwing the lid 31.
- the breather chamber 3 is located between the ventilation port 10 and the breather plug 21 and functions as a buffer space for increasing the flow passage area, and the space has a labyrinth structure to prevent oil flow. Because of the function of inhibiting, the occurrence of breather blowing is more reliably prevented.
- the speed change Prevents breather blowing without drastically changing the shape of machine case 1 Can be further enhanced. Also in this case, the protrusion of the breather chamber 3, the breather plug 21 and the breather pipe 22 from the maximum outer diameter of the transmission case 1 is also minimized, and the mountability of the transmission to the vehicle is improved. There is no loss due to the use of the equipment.
- FIGS. 8 and 9 show a third embodiment of the present invention.
- This embodiment differs from the second embodiment in that the breather chamber 3 is configured separately.
- the ventilation means 2 in this embodiment has a breather chamber 3 separate from the transmission case 1 and communicates with the space inside the transmission case through a ventilation opening 10 (see FIG. 9).
- the breather chamber 3 is a space that is long in the front-rear direction as shown in a plan view in FIG. 9 and communicates with the space inside the transmission case through a vent 10 at one end side (rear side in this embodiment).
- the other end (similarly, the front side) is configured to be open to the outside air via a breather plug 21 and a breather pipe 22 on the same route as in the previous two embodiments.
- the breather chamber 3 is arranged along one side of the front part of the reinforcing rib 12 of the transmission case 1.
- the breather chamber 3 is composed of a simple box-shaped housing 33 and the rear side wall is short.
- the pipe 34 communicates with the inner space of the reinforcing rib 12 through a vent 10 formed at the same position as in the first embodiment.
- the breather plug 21 is attached to the front wall of the housing 33. In this case, the breather plug 21 gives more room for the orientation of the breather pipe 22 than in the case of the second embodiment. Therefore, it has a ball joint shape.
- the breather chamber 3 has a labyrinth structure that regulates the flow of fluid in the room.
- four staggered vertical walls 32 constituting the labyrinth structure are formed so as to extend from both side walls of the casing 33 to the vicinity of the opposite wall.
- the position of the vent 10 in the front-rear direction with respect to the transmission case 1 and the direction of the breather pipe 22, and also the piping after the breather plug 21, are the same as those of the first and second embodiments. Since it is the same as the case, the description is omitted.
- the breather chamber 3 is located between the ventilation port 10 and the breather plug 21 as in the second embodiment, and functions as a buffer space for expanding the flow path area. Since the labyrinth structure serves as a mechanism for inhibiting oil flow, the occurrence of breather blowing is more reliably prevented. In this embodiment, since the breather chamber 3 is separate from the transmission case 1, substantially no change in the shape of the transmission case 1 is necessary as in the case of the first embodiment. .
- the position of the ventilation port 10 is on the side wall of the reinforcing rib 12 as in the case of the first embodiment, and the blower chamber 3 is of the same oil type as in the case of the second embodiment. Since it exerts the flow inhibiting effect, the influence on the outer shape of the transmission case 1 is greater than in the previous two embodiments, but the resulting blower device has both of the blower blowing prevention effects.
- the position of the ventilation port 10 with respect to the transmission case 1 is desirably set to be slightly shifted forward from the center position, and such a configuration is naturally within the scope of the present invention. Is included. Industrial applicability
- the present invention can be applied to a wide variety of general transmissions.
- automatic transmissions and especially, vertical type for front engine rear drive (FR) vehicles mounted on vehicles such as 4WD off-road vehicles Is effective for use in automatic transmissions.
- FR front engine rear drive
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- General Details Of Gearings (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/398,715 US7370729B2 (en) | 2001-07-02 | 2002-07-02 | Breather device for speed-change devices |
KR1020037003158A KR100926953B1 (ko) | 2001-07-02 | 2002-07-02 | 변속기의 브리더장치 |
DE60232444T DE60232444D1 (de) | 2001-07-02 | 2002-07-02 | Entlüftungseinrichtung für schaltgetriebe |
JP2003510847A JP4395723B2 (ja) | 2001-07-02 | 2002-07-02 | 変速機のブリーザ装置 |
EP02741392A EP1403557B1 (en) | 2001-07-02 | 2002-07-02 | Breather device for speedchange devices |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001201506 | 2001-07-02 | ||
JP2001-201506 | 2001-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003004909A1 true WO2003004909A1 (en) | 2003-01-16 |
Family
ID=19038454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/006686 WO2003004909A1 (en) | 2001-07-02 | 2002-07-02 | Breather device for speed-change devices |
Country Status (7)
Country | Link |
---|---|
US (1) | US7370729B2 (ja) |
EP (1) | EP1403557B1 (ja) |
JP (1) | JP4395723B2 (ja) |
KR (1) | KR100926953B1 (ja) |
CN (1) | CN1280558C (ja) |
DE (1) | DE60232444D1 (ja) |
WO (1) | WO2003004909A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009004835A1 (ja) * | 2007-06-29 | 2009-01-08 | Aisin Aw Co., Ltd. | 自動変速機のブリーザ装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2419739B (en) * | 2004-10-29 | 2009-10-21 | Hewlett Packard Development Co | Printing semiconducting components |
WO2012132738A1 (ja) * | 2011-03-31 | 2012-10-04 | アイシン・エィ・ダブリュ株式会社 | 動力伝達装置 |
JP5536813B2 (ja) * | 2012-02-22 | 2014-07-02 | 富士重工業株式会社 | ブリーザ装置 |
DE102013203612A1 (de) * | 2013-03-04 | 2014-09-04 | Siemens Aktiengesellschaft | Einrichtung zur Entlüftung von Getrieben |
CN104565319A (zh) * | 2013-10-18 | 2015-04-29 | 无锡爱奇克发动机有限公司 | 一种电动自行车用变档电机变速箱结构 |
US10639579B2 (en) | 2014-10-01 | 2020-05-05 | Donaldson Company, Inc. | Pleated tank vent |
CN105179656B (zh) * | 2015-10-15 | 2017-12-05 | 中国神华能源股份有限公司 | 呼吸器及减速机 |
CN112392942B (zh) * | 2020-11-13 | 2022-04-08 | 徐州徐工矿业机械有限公司 | 一种超大型液压挖掘机及其回转减速机齿轮油位监测装置 |
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JPH0294963U (ja) * | 1989-01-13 | 1990-07-27 | ||
JPH09273621A (ja) | 1996-04-03 | 1997-10-21 | Daihatsu Motor Co Ltd | 自動変速機のブリーザ装置 |
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JPS5765264A (en) | 1980-10-04 | 1982-04-20 | Mitsubishi Electric Corp | Superconducting synchronous generator for geothermal power generating system |
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JPH0429168Y2 (ja) * | 1984-10-31 | 1992-07-15 | ||
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JPH0294963A (ja) | 1988-09-30 | 1990-04-05 | Toshiba Corp | 垂直偏光回路 |
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2002
- 2002-07-02 JP JP2003510847A patent/JP4395723B2/ja not_active Expired - Fee Related
- 2002-07-02 WO PCT/JP2002/006686 patent/WO2003004909A1/ja active Application Filing
- 2002-07-02 CN CNB028027841A patent/CN1280558C/zh not_active Expired - Fee Related
- 2002-07-02 US US10/398,715 patent/US7370729B2/en not_active Expired - Fee Related
- 2002-07-02 DE DE60232444T patent/DE60232444D1/de not_active Expired - Lifetime
- 2002-07-02 KR KR1020037003158A patent/KR100926953B1/ko active IP Right Grant
- 2002-07-02 EP EP02741392A patent/EP1403557B1/en not_active Expired - Lifetime
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JPS5765264U (ja) * | 1980-10-07 | 1982-04-19 | ||
JPH0294963U (ja) * | 1989-01-13 | 1990-07-27 | ||
JPH09273621A (ja) | 1996-04-03 | 1997-10-21 | Daihatsu Motor Co Ltd | 自動変速機のブリーザ装置 |
Non-Patent Citations (1)
Title |
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See also references of EP1403557A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009004835A1 (ja) * | 2007-06-29 | 2009-01-08 | Aisin Aw Co., Ltd. | 自動変速機のブリーザ装置 |
US8887870B2 (en) | 2007-06-29 | 2014-11-18 | Aisin Aw Co., Ltd. | Breather device of automatic transmission |
Also Published As
Publication number | Publication date |
---|---|
US7370729B2 (en) | 2008-05-13 |
US20030188928A1 (en) | 2003-10-09 |
EP1403557B1 (en) | 2009-05-27 |
KR20030024925A (ko) | 2003-03-26 |
CN1280558C (zh) | 2006-10-18 |
DE60232444D1 (de) | 2009-07-09 |
CN1473248A (zh) | 2004-02-04 |
EP1403557A1 (en) | 2004-03-31 |
EP1403557A4 (en) | 2006-11-02 |
JP4395723B2 (ja) | 2010-01-13 |
KR100926953B1 (ko) | 2009-11-17 |
JPWO2003004909A1 (ja) | 2004-10-28 |
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