Power plants – Pressure fluid source and motor – Input pump and rotary output motor system having...
Patent
1987-06-30
1988-04-05
Look, Edward K.
Power plants
Pressure fluid source and motor
Input pump and rotary output motor system having...
91506, F16D 3900
Patent
active
047350504
ABSTRACT:
A static hydraulic pressure type continuously variable transmission having a hydraulic closed circuit formed between a swashplate type hydraulic pump and a swashplate type hydraulic motor, in which a high pressure oil passage is communicated through exhaust valves with a number of cylinder bores annularly disposed in a pump cylinder of the hydraulic pump, a low pressure oil passage is communicated through intake valves with the cylinder bores, and a number of distribution valves capable of being reciprocated are radially disposed so as to provide an alternate communication between a number of cylinder bores annularly disposed in a motor cylinder of the hydraulic motor and the high and low pressure oil passages. An eccentric ring for imparting reciprocation to each distribution valve is provided and a discharge side of a replenishing pump is communicated with an inner end surface of each distribution valve to hydraulically urge the distribution valve in a direction of engagement with the eccentric ring.
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Hayashi Tsutomu
Saito Mitsuru
Yoshida Yoshihiro
Honda Giken Kogyo Kabushiki Kaisha
Look Edward K.
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