发明名称 |
Traction-drive transmission with hydraulic control |
摘要 |
The invention contemplates an improved mechanical traction drive with a hydraulically implemented single control whereby a desired range of speed ratios between input and output shafts is selectively available, without requiring clutch connection to the power source, such as a battery-operated electric motor. The transmission employs a combination of completely mechanical friction-roller and meshing-gear planetary systems which are connected at all times, whether the single control is operated to call for a forward drive or a stop, and whether the motor is run in the direction to produce a forward or a reverse drive of the output shaft. Provision is made for automatically downshifting and upshifting the transmission via hydraulic means, in response to input-torque requirements and/or output-torque limitations.
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申请公布号 |
US4270415(A) |
申请公布日期 |
1981.06.02 |
申请号 |
US19790019558 |
申请日期 |
1979.03.12 |
申请人 |
TEXTRON INC. |
发明人 |
DICKINSON, THORN W.;MCLARTY, DANIEL R.;LYONS, JR., THOMAS F. |
分类号 |
F16H3/74;F16H37/08;F16H61/00;(IPC1-7):B60K41/14 |
主分类号 |
F16H3/74 |
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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