Two-stage gear mechanism
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0963098
(2001-09-25)
|
우선권정보 |
DE-0047308 (2000-09-25) |
발명자
/ 주소 |
- Hofschulte, Wolfram H.
- Synovzik, Wilfried
- Dismon, Heinrich
- Koester, Andreas
|
출원인 / 주소 |
|
대리인 / 주소 |
Samuels, Gauthier & Stevens LLP
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인용정보 |
피인용 횟수 :
4 인용 특허 :
3 |
초록
▼
A two-stage gear mechanism includes a drive shaft having a first gear stage disposed in a fixed housing and containing planetary wheels. The two-stage gear mechanism also includes a second gear stage, driven by the first gear stage and meshing with a drive shaft. Each of the planetary wheels is form
A two-stage gear mechanism includes a drive shaft having a first gear stage disposed in a fixed housing and containing planetary wheels. The two-stage gear mechanism also includes a second gear stage, driven by the first gear stage and meshing with a drive shaft. Each of the planetary wheels is formed as a stepped double gear wheel with a first gear wheel that engages the drive shaft, and with a second gear wheel that points toward the direction of the output side. The bearing axles of each of the planetary wheels are disposed spatially fixed within the housing. The second gear wheels of the planetary wheels mesh with a hollow wheel of the second gear stage, the hollow wheel being non-rotationally coupled to the drive shaft.
대표청구항
▼
A two-stage gear mechanism includes a drive shaft having a first gear stage disposed in a fixed housing and containing planetary wheels. The two-stage gear mechanism also includes a second gear stage, driven by the first gear stage and meshing with a drive shaft. Each of the planetary wheels is form
A two-stage gear mechanism includes a drive shaft having a first gear stage disposed in a fixed housing and containing planetary wheels. The two-stage gear mechanism also includes a second gear stage, driven by the first gear stage and meshing with a drive shaft. Each of the planetary wheels is formed as a stepped double gear wheel with a first gear wheel that engages the drive shaft, and with a second gear wheel that points toward the direction of the output side. The bearing axles of each of the planetary wheels are disposed spatially fixed within the housing. The second gear wheels of the planetary wheels mesh with a hollow wheel of the second gear stage, the hollow wheel being non-rotationally coupled to the drive shaft. pack. 9. The differential assembly as defined in claim 1, wherein said selective control of said friction clutch pack is determined in response to at least one vehicle parameter. 10. The differential assembly as defined in claim 9, wherein said at least one vehicle parameter is selected from the group consisting of a vehicle speed, a wheel speed difference, a vehicle yaw rate, a steering angle, an engine throttle position, a vehicle lateral acceleration, a brake application, an ice detection, a moisture detection, a driveline configuration, and yaw stability control system actuation. 11. The differential assembly as defined in claim 1, wherein said hydraulic clutch actuator further including a piston assembly disposed within said differential case between said pump and said clutch pack and defining a pressure chamber, wherein said variable pressure relief valve assembly selectively controls a maximum hydraulic pressure attainable within said pressure chamber. 12. The differential assembly as defined in claim 11, wherein said variable pressure relief valve assembly selectively controls said maximum pressure attainable within said pressure chamber between a maximum release pressure and a minimum release pressure. 13. The differential assembly as defined in claim 12, wherein said minimum release pressure is at a level that prevents actuation of said friction clutch pack. 14. The differential assembly as defined in claim 12, wherein said maximum release pressure is at a level that enables complete actuation of said friction clutch pack. 15. The differential assembly of claim 12, wherein said maximum hydraulic pressure attainable within said pressure chamber is adjustable between said minimum release pressure and said maximum release pressure so as to enable partial actuation of said friction clutch pack. 16. The differential assembly as defined in claim 1, wherein said electro-magnetic actuator including a coil winding supported by said differential case and an armature radially spaced from said coil winding and axially movable relative thereto in response to a magnetic flux generated by said coil winding when said electrical current is supplied thereto, said armature engages said valve closure member and urges said valve closure member against said valve seat with an axial force produced by said magnetic flux and determined by said magnitude of said electric current for selectively setting up said release pressure of said valve closure member. 17. The differential assembly as defined in claim 16, wherein said coil winding is coaxial to an axis of rotation of said differential case. 18. The differential assembly as defined in claim 16, wherein said coil winding is rotatably supported by said differential case. 19. The differential assembly as defined in claim 16, wherein said coil winding is substantially annular in shape and is mounted substantially coaxially to an axis of rotation of said differential case. 20. The differential assembly as defined in claim 16, wherein said armature is non-rotatably coupled to said differential case. 21. The differential assembly as defined in claim 16, wherein said armature is disposed outside said coil winding of said electro-magnetic actuator. 22. The differential assembly as defined in claim 16, wherein said armature is substantially annular in shape and is mounted substantially coaxially to an axis of rotation of said differential case. 23. The differential assembly as defined in claim 16, wherein said armature has a substantially U-shaped cross-section. 24. The differential assembly as defined in claim 16, wherein said coil winding is wound about a coil housing rotatably mounted to said differential case and wherein said armature is off-set from said coil housing to a distance that ensures that said axial force applied upon said valve closure member by said electro-magnetic actuator is substantially constant as said valve closure member moves from said closed position to said open position
이 특허에 인용된 특허 (3)
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Buuck Dennis L. (Lafayette IN), Disengage mechanism for gear drive.
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Schulz Horst,DEX ; Somschor Bernd,DEX, Planetary gear.
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Hashimoto Keishi (Yawata JPX) Kimura Masaaki (Takatsuki JPX) Miyamoto Jiro (Nishikyo JPX), Planetary gear system.
이 특허를 인용한 특허 (4)
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Shimizu,Takashi, Annular gear.
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Liu, Bradford P; Weslati, Feisel, Single-input and single-output hybrid system.
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Korner,Tillmann; Meier Burkamp,Gerhard; Langenbeck,Konrad; Schwammle,Timm; Gloggler,Christian, Web unit.
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Long, Randall L.; Wise, Jr., Cecil H.; Detrick, G. William, Work vehicle drive with compact multi-speed shift assembly.
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