Hydraulic pumps

Details Hydraulic pumps Hydraulic pumps

1988-02-19

1991-07-16

Smith, Leonard E.

Pumps

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

Condition responsive fluid control

417297, 92 122, F04B 126

Patent

active

050320610

ABSTRACT:
Hydraulic pump with axial pistons (1) in which each piston (1) forces the hydraulic liquid through a nonreturn valve, said nonreturn valves being connected to a control jack (20) by means of which the nonreturn valves can be made inactive, characterized by the fact that the nonreturn valves are placed in a chamber (10) and consist of a sliding support (15) inside of which there is disposed a spring (17) acting on an organ (16) serving as valve, which slides inside the sliding support (15), the latter being able, at will, to be coupled by any suitable means to the control jack (20).

REFERENCES:
patent: 2464448 (1949-03-01), Huber
patent: 2682227 (1954-06-01), Burris
patent: 2806430 (1957-09-01), Osborne
patent: 3093081 (1963-06-01), Budzich
patent: 4519750 (1985-05-01), Kurahashi
patent: 4799507 (1989-01-01), Hrabal
patent: 4869291 (1989-09-01), Hrabal

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