Hydraulic pump

Details Hydraulic pump Hydraulic pump

1982-04-02

1984-04-24

Freeh, William L.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Motive fluid bypass to or from assembly

91506, F01B 1304

Patent

active

044440928

ABSTRACT:
This invention relates to hydraulic pumps. The pump includes essentially a casing (1), a barrel (3) capable of rotating on a slide face (2), the barrel comprising a plurality of pistons (16, 17) sliding in a reciprocating manner in cylinders (9, 10) provided in the casing, the pump being characterized essentially by the fact that it comprises structures (59, 54, 50, 52, 53) for sequentially applying the pressure prevailing in the cylinder on a given portion between a bearing block (26) made in the casing (1) and the part of said barrel (3) cooperating with the bearing block (26). The pump finds a particularly advantageous application in the area of those which must rotate at very high speed, for example in aeronautics.

REFERENCES:
patent: 2430764 (1947-11-01), Gabriel
patent: 3079870 (1963-03-01), Thoma
patent: 3142262 (1964-07-01), Firth et al.
patent: 3208395 (1965-09-01), Budzich
patent: 3631764 (1972-01-01), Lucien
patent: 3728943 (1973-04-01), Lucien

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