Power plants – Pressure fluid source and motor – Condition responsive control of motive fluid flow
Patent
1989-02-17
1990-07-03
Look, Edward K.
Power plants
Pressure fluid source and motor
Condition responsive control of motive fluid flow
60487, 60488, 60489, 91482, F16D 3102
Patent
active
049380249
ABSTRACT:
In a hydrostatic continuously variable transmission, a pump cylinder of a swashplate type hydraulic pump is integrally and coaxially coupled with a motor cylinder of a swashplate type hydraulic motor. A number of distributor valves are radially arranged for reciprocal movement between radially inner and outer positions to put a large number of pump ports in the hydraulic pump into communication with the higher and lower pressure oil passages, and an eccentric ring circumscribed about the distributor valves is connected to an input member of the hydraulic pump for movement between a clutch OFF position and a clutch ON position. A clutch spring is connected to the eccentric ring for biasing the eccentric ring toward the clutch OFF position, and a weight is added to the eccentric ring and adapted to exhibit a centrifugal force for moving the eccentric ring toward the clutch ON position against a spring force of the clutch spring.
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Hayashi Tsutomu
Hojo Atsuo
Matsuto Takushi
Nakajima Yoshihiro
Nakamura Kazuhiko
Honda Giken Kogyo Kabushiki Kaisha
Look Edward K.
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