发明名称 |
ENTLASTUNGSVENTIL FUER DEN KRAFTUEBERTRAGUNGS- BZW. BREMSMECHANISMUS EINES KRAFTFAHRZEUGS |
摘要 |
<p>A vehicle includes variable-ratio gearing driven via a hydrodynamic torque converter. The converter has a hydraulically-engaged lock-up clutch which is temporarily disengaged whenever a ratio is disengaged. The vehicle has a system of hydraulically-engaged clutches and brakes for changing ratio, and a system of hydraulically-engaged brakes for bringing the vehicle to rest. The respective operating pressures in the clutch-and-brake system and the braking system are independently modulated, in order more smoothly to change ratio or bring the vehicle to rest, by enabling a relief valve in each system to open against a determined spring force when pilot pressure exerted on each valve in the closing direction and derived from the operating cylinder of the lock-up clutch is temporarily cut off.</p> |
申请公布号 |
DE7818150(U1) |
申请公布日期 |
1979.07.05 |
申请号 |
DE19780018150U |
申请日期 |
1978.06.16 |
申请人 |
DAVID BROWN GEAR INDUSTRIES LTD., HUDDERSFIELD, WEST YORKSHIRE;SHIPLEY, GERALD ALAN, WORPLESDON, SURREY;(GROSSBRITANNIEN) |
发明人 |
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分类号 |
B60K20/00;F16D67/04;F16H61/14;F16H61/66;(IPC1-7):B60K41/16 |
主分类号 |
B60K20/00 |
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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