Arrangement for the regulation of the output and for limiting th

Details Arrangement for the regulation of the output and for limiting th Arrangement for the regulation of the output and for limiting th

1979-08-29

1982-04-20

Croyle, Carlton R.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

F04B 4900

Patent

active

043256775

ABSTRACT:
An arrangement for regulating the output flow and the output pressure of an adjustable pump includes two parallel throttles arranged, respectively, in an output conduit and in a branch conduit; a spring biased multi-way directional control valve is controlled by differential pressure in the branch conduit upstream of the two throttles to adjust the delivery of the pump; manually closed overpressure control valve connects the branch conduit downstream of the corresponding throttle to a tank and a normally open one-way valve connects the output conduit to the branch conduit downstream of the throttles and interrupts the connection as long as the overpressure control valve is open.

REFERENCES:
patent: 3067693 (1962-12-01), Lambeck
patent: 3820920 (1974-06-01), Klimaszewski
patent: 4067664 (1978-01-01), Robeller
patent: 4194364 (1980-03-01), Pahl et al.

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