Hydraulic control system

Details Hydraulic control system Hydraulic control system

1992-12-28

1994-03-15

Look, Edward K.

Power plants

Pressure fluid source and motor

Having a mechanical clutch or brake device in the power train

60444, 91536, F16D 102

Patent

active

052937461

ABSTRACT:
A hydraulic control system has first and second actuators that can be selectively moved to a second operating position dependant upon the pressure of hydraulic fluid being simultaneously transmitted thereto through a common conduit. The force of the springs of the first and second actuators is selected so that when the pressure of the hydraulic fluid is at a preselected low pressure, only one of the actuators is moved to its second position and both of the actuators is moved to their second positions when the fluid is at a preselected high pressure. The use of a common conduit for carrying fluid to the actuators eliminates the expense and complexity of providing another flow path between rotatable parts of a vehicle.

REFERENCES:
patent: 3972185 (1976-08-01), Medina
patent: 3986357 (1976-10-01), Hoffmann
patent: 4481769 (1984-11-01), Nagahara
patent: 4712377 (1987-12-01), Yoshida et al.

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