Fuel supply apparatus

Details Fuel supply apparatus Fuel supply apparatus

1990-01-26

1991-11-12

Bertsch, Richard A.

Pumps

Plural pumps with individual or relative control

Bypass control

417251, F04B 2304

Patent

active

050643576

ABSTRACT:
A supply passage communicates with the inlet of a first centrifugal pump. A second, smaller centrifugal pump has its outlet connected to a delivery conduit. A valve arrangement is selectively operable to connect the inlet of the second pump either to the output of the first pump or directly to the supply passage, both the inlet and outlet of the first pump being shut off in the latter condition.

REFERENCES:
patent: 2532856 (1950-12-01), Ray
patent: 2826353 (1958-03-01), Auwarter
patent: 2836230 (1958-05-01), Crvckshank
patent: 3026929 (1962-03-01), Burns
patent: 3147712 (1964-09-01), Gaubatz
patent: 3233651 (1966-02-01), Smith
patent: 3658440 (1972-04-01), Jackson
patent: 3699774 (1972-10-01), Davis
patent: 3941505 (1976-03-01), Nasvytis
patent: 4700680 (1987-10-01), Pearce

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