IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0977778
(2004-10-29)
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등록번호 |
US-7252173
(2007-08-07)
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우선권정보 |
DE-103 50 870(2003-10-31) |
발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Davis Bujold & Daniels, P.L.L.C.
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인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
▼
A differential (2) for a vehicle is proposed for the apportionment of a drive torque conducted via a drive shaft on a crown gear (7). The drive torque is engendered by a motor (1) onto two output shafts (3, 4) and differential is to serve for the compensation of a difference in speed of rotation bet
A differential (2) for a vehicle is proposed for the apportionment of a drive torque conducted via a drive shaft on a crown gear (7). The drive torque is engendered by a motor (1) onto two output shafts (3, 4) and differential is to serve for the compensation of a difference in speed of rotation between the two output shafts (3, 4). The crown gear (7) is located in an area between the motor (1) and a drive wheel (6) of a vehicle (29) while a semi-independent suspension assembly (10) is to be found between the output shafts (3, 4) in the area between the motor (1) and the other drive wheel (5) of the vehicle, whereby the crown gear (7) and the semi-independent suspension assembly (10) are bound together via a shaft (8).
대표청구항
▼
The invention claimed is: 1. A differential (2) for a vehicle for the apportionment of a drive torque of a drive motor (1) between a first output shaft (4) supporting a first driven wheel (6) and a second output shaft (3) supporting a second driven wheel (5), the differential (2) comprising: a crow
The invention claimed is: 1. A differential (2) for a vehicle for the apportionment of a drive torque of a drive motor (1) between a first output shaft (4) supporting a first driven wheel (6) and a second output shaft (3) supporting a second driven wheel (5), the differential (2) comprising: a crown gear receiving a drive torque via a drive shaft connected to the drive motor (1) and the crown gear (7) is positioned on a first side of the drive motor between the drive motor (1) and the first driven wheel (6); a front shaft coupling assembly (10) is spaced from the crown gear (7) and positioned on a second opposite side of the drive motor (1) between the drive motor (1) and the second driven wheel (5) for compensation of rotational speed differences between the first and second output shafts (3, 4); and wherein the crown gear (7) is non-rotatably supported on a torque shaft (8) extending from the first side of the drive motor (1) transverse to the drive motor (1) to the second side of the drive motor (1) to connect with the front shaft coupling assembly (10). 2. The differential according to claim 1, wherein the torque shaft (8) which connects the crown gear (7) with the front shaft coupling assembly (10) is a hollow shaft. 3. The differential according to claim 2, wherein one of the first and second output shafts (3, 4) is partially housed with the hollow torque shaft (8). 4. The differential according to claim 1, wherein the front shaft coupling assembly (10) connects the two output shafts (3, 4) and is rotatably fastened to the motor (1). 5. The differential according to claim 1, wherein the crown gear (7) is supported on a steering mechanism connected with the motor (1). 6. The differential according to claim 1, wherein the torque shaft (8) supporting the crown gear (7) is connected with a differential cage (9) of the front shaft coupling assembly (10). 7. The differential according to claim 1, wherein the torque shaft (8), between the crown gear (7) and the front shaft coupling assembly (10) is conducted through a housing part of the motor (1). 8. The differential according to claim 1, wherein the torque shaft between the front shaft coupling assembly (10) and the crown gear runs underneath the motor (1). 9. The differential according to claim 1, wherein between the first and second driven wheels (5, 6) and the two output shafts (3, 4), respectively, a tooth gear pairing (11, 12), for bridging an axial displacement, is provided. 10. The differential according to claim 9, wherein the tooth gear pairing (11, 12) provided for compensation of axial displacement, are respectively formed from a spur gear toothing (13), which is actively bound with drive bevel gears (14, 16) and formed from a spur gear (15) which is connected to one of the first and second output shafts (3, 4). 11. The differential according to claim 10, wherein the drive bevel gear (14) and the spur gear toothing (13) are made as one piece. 12. The differential according to claim 10, wherein the drive bevel gears (14, 16) are placed upon one common axle (23). 13. The differential according to claim 10, wherein the drive torque of the motor (1) is supplied to the crown gear (7) and subsequently onto a connected differential cage (9), said cage is further connected to front shaft coupling assembly (10). 14. The differential according to claim 13, wherein the drive torque from the differential cage (9) is transferable to pinion gears (21, 22) by means of bolts (28, 27), the bolts engage themselves in the said differential cage (9) and are rotatably mounted on the pinion gears, which mesh with the bevel gears (14, 16). 15. The differential according to claim 14, wherein the differential cage (9) is a ring and abuts radial forces of a bevel gear toothing (19, 20) of the pinion gears (21, 22). 16. The differential according to claim 14, wherein in an area of toothing of the crown gear (7), occurring toothing forces are absorbed by the differential bolts (26, 27) on a common axle (23) of the bevel gears (14, 16). 17. A vehicle drive train having a prime mover, the drive train comprising: a front differential (2) for apportioning a drive torque from the prime mover (1) between a first half-shaft (4) and a second half-shaft of a vehicle drive train, the front differential (2) comprising; a crown gear positioned on a first side of the prime mover for receiving a drive torque; a front shaft coupling assembly (10) is positioned on an opposite second side of the prime mover from the first side for compensation of rotational speed differences between the first and second half-shafts (3, 4); and a torque shaft (8) supporting the crown gear on the first side of the motor extends from the first side of the prime mover (1) transverse to the prime mover (1) to the second side of the prime mover (1) to connect with the front shaft coupling assembly (10). 18. The vehicle drive train as set forth in claim 17 wherein the torque shaft 8 is axially aligned and concentrically positioned about at least one of the first end second half-shafts of the vehicle drive train. 19. The vehicle drive train as set forth in claim 18 wherein a first end of the torque shalt (8) supports the crown gear on the first side of the motor, and a second end of the torque shaft (8) is connected directly with a differential cage (9) supporting the to front shaft coupling assembly (10).
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