Supercharged three-section pump

Details Supercharged three-section pump Supercharged three-section pump

1975-05-15

1977-03-29

Freeh, William L.

Pumps

Diverse pumps

Including rotary nonexpansible chamber type

91499, F04B 2310, F04B 2314, F01B 1304

Patent

active

040146286

ABSTRACT:
A three-section pump including a variable displacement piston pump and an additional rotary pump arranged in axial alignment upon a common drive shaft together with a centrifugal pump, the output for the centrifugal pump being connected to the input for the piston pump in order to assure positive filling. Preferably, the output for the centrifugal pump is also connected with the input for the additional rotary pump in order to also assure its optimum operation. The three-section pump includes a specially configured housing permitting compact assembly of the three-section pump and providing a bearing mount for the common drive shaft of the three-section pump.

REFERENCES:
patent: 2134686 (1938-11-01), De Lancey
patent: 2192539 (1940-03-01), Condon
patent: 2769393 (1956-11-01), Cardillo
patent: 2870746 (1959-01-01), Keel
patent: 2945449 (1969-07-01), Le Febvre
patent: 3049884 (1962-08-01), Schroeder
patent: 3160109 (1964-12-01), Kline
patent: 3202101 (1965-08-01), Tinker et al.
patent: 3249061 (1966-05-01), Ricketts
patent: 3426686 (1969-02-01), Anderson
patent: 3499391 (1970-03-01), Chao et al.
patent: 3654758 (1972-04-01), Aoyama
patent: 3657971 (1972-04-01), Freemann
patent: 3834281 (1974-09-01), Heyl

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