Apparatus for damping the pressure increase of hydrostatic drive

Details Apparatus for damping the pressure increase of hydrostatic drive Apparatus for damping the pressure increase of hydrostatic drive

1974-08-02

1976-03-30

Freeh, William L.

Pumps

Condition responsive control of drive transmission or pump...

60447, F04B 4900, F15B 1518

Patent

active

039471942

ABSTRACT:
An apparatus for damping the pressure increase of hydrostatic drives, especially axial piston pumps, with swash plate control and pre-biased oil circulation, wherein the pressurized oil compartment of an adjustment cylinder is connected with the low pressure side of the oil infeed of the pump via a check or nonreturn valve which opens in the direction of the low pressure conduit of the oil infeed. There is further provided a supply pump and a mechanical adjustment mechanism. The adjustment cylinder is rigidly connected with the mechanical adjustment and the bottom side of the adjustment cylinder is connected via a regulation throttle and a check valve means with the pressure side of the supply pump.

REFERENCES:
patent: 3217493 (1965-11-01), Kempson
patent: 3543508 (1970-12-01), Schwab
patent: 3603084 (1971-09-01), Okazaki
patent: 3650108 (1972-03-01), Isaac
patent: 3660975 (1972-05-01), Martin

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