Document Type and Number:
Japanese Patent JPS4865383
Kind Code:
A
Abstract:
Pressurized fluid is supplied to a reversible fluid motor through a motor control valve which may be shifted to direct fluid to either port of the motor while communicating the other motor port with an individual exhaust passage for that port thereby providing for motor operation in either direction. A separate overspeed inhibiting vlave is disposed in each of the two exhaust passages and each responds to a pressure decrease in the fluid entering the motor by reducing the flow passage for fluid exhausting from the motor thereby maintaining a constant speed determined by the setting of the motor control valve. Disposition of the overspeed valves in the motor control valve exhaust passages rather than between the motor control valve and the motor avoids any need for a bypass check valve at each overspeed valve.
Application Number:
JP12514272A
Publication Date:
September 08, 1973
Filing Date:
December 13, 1972
Export Citation:
International Classes:
F16K11/07; F15B11/02; F15B11/05; (IPC1-7): F15B13/02
Domestic Patent References:
| JPS473930A |