Decoupler for damping a torque transmission between a drive shaft of a motor vehicle and a belt pulley
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16H-055/14
F16D-003/00
F16H-055/36
F16H-009/00
F16H-059/00
F16H-061/00
F16H-063/00
F16D-041/18
F16F-015/134
출원번호
US-0653825
(2013-11-28)
등록번호
US-9528590
(2016-12-27)
우선권정보
DE-10 2012 223 728 (2012-12-19)
국제출원번호
PCT/DE2013/200321
(2013-11-28)
국제공개번호
WO2014/094760
(2014-06-26)
발명자
/ 주소
Mende, Hartmut
Kroll, Jürgen
출원인 / 주소
Schaeffler Technologies AG & Co. KG
대리인 / 주소
Mangels, Alfred J.
인용정보
피인용 횟수 :
0인용 특허 :
21
초록▼
A decoupler for damping torque transmission irregularities between a vehicle drive shaft and a belt pulley for driving vehicle auxiliary components. The decoupler includes first and second ramp rings for transmitting torque delivered by the drive shaft to the belt pulley. A spring arrangement provid
A decoupler for damping torque transmission irregularities between a vehicle drive shaft and a belt pulley for driving vehicle auxiliary components. The decoupler includes first and second ramp rings for transmitting torque delivered by the drive shaft to the belt pulley. A spring arrangement provides for axial engagement of the ramp rings. The ramp rings have respective sloped push and pull ramps directed toward the adjacent ramp ring so that in a coasting mode of the vehicle the ramp rings rotate relative to each other and in a vehicle drive mode the ramp rings are drawn toward one another. The decoupler includes a pulley damper for damping torque transmission irregularities to reduce noise emission.
대표청구항▼
1. A decoupler for damping torque transmission irregularities between a drive shaft of a motor vehicle and a belt pulley that drives auxiliary assemblies of the vehicle by a drive means, said decoupler comprising: a first ramp ring for introducing torque delivered to the first ramp ring by the drive
1. A decoupler for damping torque transmission irregularities between a drive shaft of a motor vehicle and a belt pulley that drives auxiliary assemblies of the vehicle by a drive means, said decoupler comprising: a first ramp ring for introducing torque delivered to the first ramp ring by the drive shaft,a second ramp ring that axially engages with the first ramp ring to deliver torque to an input flange of a belt pulley, andat least one spring arrangement to press the first ramp ring and the second ramp ring together axially, wherein the spring arrangement includes at least one first spring element and at least one second spring element, wherein the first ramp ring and the second ramp ring are positioned between the first spring element and the second spring element in the axial direction of the decoupler,wherein the first ramp ring carries a first push ramp that is directed toward the second ramp ring and the second ramp ring carries a second push ramp that is directed toward the first ramp ring, and the first push ramp and the second push ramp are each sloped in a circumferential direction relative to the axial direction of the decoupler by a mean push angle α so that in a coasting mode of the vehicle the first ramp ring is rotated relative to the second ramp ring against the spring force of the spring arrangement, andwherein the first ramp ring includes a first pull ramp that is directed away from the second ramp ring and the second ramp ring includes a second pull ramp that is directed away from the first ramp ring, and the first pull ramp and the second pull ramp are each sloped in a circumferential direction of the decoupler relative to the axial direction by a mean pull angle β so that in a drive mode of the vehicle the first ramp ring and the second ramp ring are drawn toward each another. 2. The decoupler according to claim 1, wherein at least one of the first pull ramp of the first ramp ring includes a first wedge that is directed toward the second ramp ring for engagement with the second ramp ring, and the second pull ramp of the second ramp ring includes a second wedge that is directed toward the first ramp ring for engagement with the first ramp ring. 3. The decoupler according to claim 1, wherein at least one of the first pull ramp of the first ramp ring includes a first receiving pocket to receive a second wedge of the second ramp ring which is bounded by the second pull ramp, and the second pull ramp includes a second receiving pocket to receive a first wedge of the first ramp ring which is bounded by the first pull ramp. 4. The decoupler according to claim 1, wherein a value of the mean push angle α is 3°≦|α|≦45°, a value of the mean pull angle β is 0°<|β|≦25°. 5. The decoupler according to claim 1, wherein at least one of the first ramp ring and the second ramp ring is made of a plastic material. 6. The decoupler according to claim 1, wherein at least one of the first ramp ring and the second ramp ring includes a friction-reducing material on at least one of the push ramp and the pull ramp. 7. A pulley damper for torsional vibration damping of torque irregularities delivered by a drive shaft of a motor vehicle, said pulley damper comprising: a hub for connection with the drive shaft, a belt pulley for driving vehicle auxiliary assemblies by a drive means, an input flange that is rotatable in relation to the belt pulley to introduce torque into the belt pulley,an energy storage element interposed between the input flange and the pulley to transmit torque from the input flange to the belt pulley, anda decoupler in accordance with claim 1 that is coupled with the hub and with the input flange. 8. The pulley damper according to claim 7, wherein the belt pulley is rotatably supported on the hub by a radial bearing. 9. The belt pulley damper according to claim 7, wherein the belt pulley includes a sealed receiving chamber that receives the energy storage element, wherein the receiving chamber contains a lubricant, and wherein the decoupler is contained entirely the receiving chamber. 10. The decoupler according to claim 4, wherein the value of the mean push angle α is 10°≦|α|≦40°, and the value of the mean pull angle is 1°≦|β|≦10°. 11. The decoupler according to claim 4, wherein the value of the mean push angle α is 20°≦|α|≦35°, and the value of the mean pull angle is 2°≦|β|≦7°. 12. The decoupler according to claim 4, wherein the value of the mean push angle α is 25°≦|α|≦30°, and the value of the mean pull angle is 3°≦|β|≦5°. 13. The decoupler according to claim 5, wherein the plastic material is fiber reinforced. 14. The decoupler according to claim 6, wherein the friction reducing material is polytetrafluoroethylene. 15. The decoupler according to claim 7, wherein the energy storage element is a curved coil spring. 16. The decoupler according to claim 8, wherein the radial bearing is a roller bearing.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (21)
Burk Jeffrey L. (Lincoln Township ; Berrien County MI) Wood Douglas E. (Hagar Township ; Berrien County MI), Automatic washer basket and agitator drive system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.