Power plants – Pressure fluid source and motor – Input pump and rotary output motor system having...
Patent
1988-09-16
1990-08-28
Look, Edward K.
Power plants
Pressure fluid source and motor
Input pump and rotary output motor system having...
60487, 91480, F16D 3900
Patent
active
049514695
ABSTRACT:
A hydrostatic continuously variable transmission comprising a hydraulic pump having a pump cylinder, a hydraulic motor having a motor cylinder and a hydraulic closed circuit between the pump and motor, wherein the pump cylinder and motor cylinder are connected integrally rotatably to form a transmission member, one of input and output sections of the transmission being formed on the outer periphery of one of the cylinders and the other of the sections being formed by a transmission shaft which relatively rotatably carries the cylinders. The hydraulic closed circuit includes groups of first and second distributor valves for controlling transfer of working oil between the pump and motor through oil passages and first and second valve driving means for driving these groups of valves are arranged such that one is inside and the other is outside of a cylinder block formed of the pump and motor cylinders. This allows a transmission to have a compact size and a high industrial utility.
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Hayashi Tsutomu
Katahira Kiyoshi
Wakatsuki Goroei
Honda Giken Kogyo Kabushiki Kaisha
Look Edward K.
Ryznic John E.
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