Hydraulic speed governor

Details Hydraulic speed governor Hydraulic speed governor

1978-11-08

1980-08-26

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Condition responsive control of or by input to input pump...

60449, 60494, 91436, 137106, 137596, F15B 1518

Patent

active

042188849

ABSTRACT:
Flow from a pressure source is bidirectionally conducted to a prime-mover driven, bidirectional, positive displacement pump and in-series flow restrictions; the pressure source and flow restrictions functioning to provide the reference flow rate; the pressure gradient across said pump bidirectionally signaling the error in prime-mover speed. Means responsive to said pressure gradient provide proportional plus integral control of the prime-mover speed.

REFERENCES:
patent: 2448557 (1948-09-01), Stephens
patent: 2477669 (1949-08-01), Stephens
patent: 2733688 (1956-02-01), Badenoch
patent: 2944527 (1960-07-01), Vander Kaar
patent: 3133559 (1964-05-01), Tennis
patent: 3523742 (1970-08-01), Gold
patent: 4121609 (1978-10-01), Gold

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