发明名称 Pump drive apparatus
摘要 Between a water pump 3 and an electric motor 1, there is interposed a toroidal-type continuously variable transmission 2. By changing the gear change ratio of the toroidal-type continuously variable transmission 2, the water supply quantity can be changed while the electric motor 1 is being operated at a constant speed.
申请公布号 US2002032095(A1) 申请公布日期 2002.03.14
申请号 US20010860454 申请日期 2001.05.21
申请人 NSK LTD. 发明人 MIYATA SHINJI;ITOH HIROYUKI
分类号 F04B49/00;F04B9/02;F16H15/38;F16H37/02;F16H37/08;(IPC1-7):F16H37/02 主分类号 F04B49/00
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