Endless belt power transmission systems or components – Pulley with belt-receiving groove formed by drive faces on... – Fluid pressure actuator for adjustment of member
Patent
1991-09-25
1992-11-17
Bui, Thuy M.
Endless belt power transmission systems or components
Pulley with belt-receiving groove formed by drive faces on...
Fluid pressure actuator for adjustment of member
474 69, F16H 5900
Patent
active
051638800
ABSTRACT:
A revolution speed controller for a continuously variable speed transmission has an air cylinder unit for operating a speed-control section of the transmission, and a command pressure chamber partly defined by a diaphragm operable in response to a command air pressure. The diaphragm and the air cylinder unit are connected by a resilient member. A valve member is movable in response to operation of the diaphragm to connect or disconnect a working air pressure source to or from the interior of the air cylinder unit and to disconnect or connect the interior of the air cylinder unit from or to the atmosphere. When the pressure in the command pressure chamber is balanced with a force exerted to the diaphragm by the resilient member, the valve member cuts off the supply of the working air pressure to the air cylinder unit and also interrupts the communication between the air cylinder unit and the atmosphere.
REFERENCES:
patent: 4778435 (1988-10-01), Sugaya et al.
patent: 5094129 (1992-03-01), Sugaya et al.
Bui Thuy M.
Sakai Manufacturing Co., Ltd.
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