Liquid immersible scroll pump

Details Liquid immersible scroll pump Liquid immersible scroll pump

1977-06-17

1979-07-10

Croyle, Carlton R.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

F04C 102

Patent

active

041606299

ABSTRACT:
A liquid immersible scroll pump in which all of the pump components including electric motor drive means are contained within a housing and through which the liquid is pumped at a controlled predetermined pressure. Hydraulic pressure within the pump provides sufficient axial force on the scroll members to enhance radial sealing as well as the tangential sealing of the flanks of the scroll wraps. The pump is particularly suited for low-cost mass production and may be used as a fuel pump, either immersed in the fuel tank of an automobile or mounted outside the tank, to provide fuel under pressure through a line to the engine.

REFERENCES:
patent: RE29445 (1977-10-01), Nusser
patent: 3175758 (1965-03-01), Dirk
patent: 3418991 (1968-12-01), Shultz et al.
patent: 3567348 (1971-03-01), Benson
patent: 3884599 (1975-05-01), Young et al.
patent: 3994633 (1976-11-01), Shaffer

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