发明名称 |
Rotation transmission device |
摘要 |
A rotation transmission device is mounted in a drive train of a four-wheel drive vehicle to selectively distribute driving force to selected vehicle wheels according to the travel condition of the vehicle. This device includes an outer ring and an input shaft. A cylindrical face is formed on one of the opposed surfaces of the outer ring and the input shaft, while cam faces are formed on the other opposed surface to define a wedge-shaped space between the cylindrical face and each cam face. Rollers are mounted in pockets formed in a retainer mounted between the input shaft and the outer ring. An electromagnetic clutch is coupled to the retainer. A switch spring is mounted between the retainer and the input shaft. A two-way clutch is provided between the outer ring and the input shaft. A control unit controls the two-way clutch by adjusting the amount of current fed through a coil of the electromagnetic clutch according to the travel condition of the vehicle, thus selectively distributing driving force to selected vehicle wheels. A method of controlling the rotation transmission device is also proposed. Also, another transmission device is proposed which is mounted in the transfer of a vehicle.
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申请公布号 |
US5924510(A) |
申请公布日期 |
1999.07.20 |
申请号 |
US19970873299 |
申请日期 |
1997.06.11 |
申请人 |
NTN CORPORATION |
发明人 |
ITOH, KENICHIRO;YASUI, MAKOTO;GOTO, SHIRO |
分类号 |
B60K17/26;B60K17/346;B60K17/35;B60K23/08;F16D27/112;F16D27/115;F16D41/08;(IPC1-7):B60K27/02 |
主分类号 |
B60K17/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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