Hydraulic control with delay

Details Hydraulic control with delay Hydraulic control with delay

1978-04-24

1979-12-25

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60459, 60484, 137109, F15B 1120

Patent

active

041798872

ABSTRACT:
Two hydraulic brakes or clutches being primary users, are alternately, delayedly, hydraulically energized from a constant volumetric flow rate pump feeding also a secondary user via a pressure controller with a differential piston operated by feedback ducts from the primary users via a throttle valve. The latter valve is bypassed through a check valve for undelayed de-energization. A selector valve is disposed between the branch point for the secondary user and upstream as to energizing fluid from the feedback connection to the primary user. The pressure controller is described further as to several structural details.

REFERENCES:
patent: 2737196 (1956-03-01), Eames
patent: 3817266 (1974-06-01), Dymond
patent: 3978666 (1976-09-01), Kelly et al.

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