Charge flow priority circuit

Details Charge flow priority circuit Charge flow priority circuit

1990-03-13

1991-06-04

Look, Edward K.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of...

60454, 60456, 60486, 417252, F04B 4106

Patent

active

050203240

ABSTRACT:
A charge flow distribution valve routes all charge pump flow into a main pump until the main pump has sufficient inlet pressure. The valve opens to a first stage which routes excess charge flow to lubrication circuits. At a slightly higher main pump inlet pressure, it also routes oil to an inlet of the charge pump.

REFERENCES:
patent: 2642804 (1953-06-01), Bowers
patent: 3131540 (1964-05-01), Ritter
patent: 3266424 (1966-08-01), Bunting
patent: 3588285 (1971-06-01), Moon
patent: 3785157 (1974-01-01), Kittle et al.
patent: 3912419 (1975-10-01), Lutz et al.
patent: 3952511 (1976-04-01), Turner et al.
patent: 4173867 (1979-11-01), Schmidt et al.

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