Convertible pump servo-valve control

Details Convertible pump servo-valve control Convertible pump servo-valve control

1980-01-07

1982-09-07

Vrablik, John J.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

418 26, 418 27, 418 31, F04B 4908, F04C 1504

Patent

active

043481590

ABSTRACT:
A vane-type variable displacement pump is controlled by a first stage servo-valve. The servo-valve is controlled by a second stage which may optionally include devices which provide any of several desired control effects.

REFERENCES:
patent: 2894458 (1959-07-01), Hallman
patent: 2975717 (1961-03-01), Rynders et al.
patent: 3549281 (1970-12-01), Schink et al.
patent: 3820920 (1974-06-01), Klimaszewski et al.
patent: 4158529 (1979-06-01), Nonnemacher et al.
patent: 4275758 (1981-06-01), Masuda

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