Sliding piston joint of a hydrostatic piston machine

Details Sliding piston joint of a hydrostatic piston machine Sliding piston joint of a hydrostatic piston machine

1980-12-18

1982-11-23

Walton, George L.

Expansible chamber devices

Piston

With fluid passage in piston face

92158, 91488, F01B 1300

Patent

active

043599338

ABSTRACT:
A sliding piston joint of a hydrostatic piston machine has a piston having a recess or cavity and a sliding shoe having a head portion receivable into the recess or cavity of the piston so as to support the latter. The sliding shoe has a base portion having a surface which faces away from the piston and faces toward a hydrostatic pressure zone generated during operation of the machine. The head portion of the sliding shoe and the piston have surfaces which are in sliding contact with one another. A throughgoing passage extends through the sliding shoe so that a portion of working fluid flows from the hydrodynamic pressure zone to the contacting surfaces of the sliding shoe and the piston to thereby relieve the latter.

REFERENCES:
patent: 1487965 (1924-03-01), Michell
patent: 1694938 (1928-12-01), Harris
patent: 1842322 (1932-01-01), Hulsebos
patent: 2290764 (1942-07-01), Neuland
patent: 2980077 (1961-04-01), Magill
patent: 3188973 (1965-06-01), Firth et al.
patent: 3361077 (1968-01-01), Freeman
patent: 4018137 (1977-04-01), Fricke et al.

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