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
1991-12-10
1993-02-02
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
051834391
ABSTRACT:
A belt-type continuously variable transmission for use with a motor vehicle engine has a hydraulic actuator for effecting at least one of speed ratio control and clutch control. The belt-type continuously variable transmission is controlled by a control system including a solenoid-operated control valve for generating a controlling hydraulic pressure to be supplied to the hydraulic actuator, a hydraulic pressure generator for generating a hydraulic pressure corresponding to the rotational speed of the engine, a directional control valve for selectively connecting the solenoid-operated control valve and the hydraulic pressure generating means to the hydraulic actuator, and a solenoid-operated on-off valve for controlling the directional control valve. When the solenoid of the solenoid-operated on-off valve is energized, the directional control valve connects the solenoid-operated control valve to the hydraulic actuator, and when the solenoid is de-energized, the directional control valve connects the hydraulic pressure generator to the hydraulic actuator.
REFERENCES:
patent: 4672864 (1987-06-01), Morimoto
patent: 4955848 (1990-09-01), Kotajima
patent: 5083982 (1992-01-01), Sato
English Language Abstract of JP 61-2068162 & 63-215437.
Kanda Masahiro
Matsuda Takahiro
Ohsono Kouhei
Yumoto Toshiyuki
Bui Thuy M.
Honda Giken Kogyo Kabushiki Kaisha
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