Piston machine construction

Details Piston machine construction Piston machine construction

1974-01-11

1976-04-06

Freeh, William L.

Motors: expansible chamber type

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

Motive fluid bypass to or from assembly

F01B 1306

Patent

active

039481492

ABSTRACT:
In a piston machine of the type having a housing, a reciprocable piston in the housing and provided with an axial end portion and a piston-reciprocating element having a glide surface located opposite and movable with reference to the end portion for effecting the reciprocation of the piston, the invention provides for a glide shoe which is articulately connected to the end portion of the piston and which has a glide face in gliding contact with the glide surface of the piston-reciprocating element. The glide face has a recess which communicates via a passage with a source of pressure fluid, a sealing rim of substantially constant width surrounding the recess, and a plurality of face portions which are located outwardly of the sealing rim and configurated so that hydrodynamic pressure fields develop between the face portions and the respectively juxtaposed surface portions of the glide surface.

REFERENCES:
patent: 2608159 (1952-08-01), Born
patent: 3049940 (1962-08-01), Neff et al.
patent: 3188973 (1965-06-01), Firth et al.
patent: 3194173 (1965-07-01), Thoma
patent: 3223046 (1965-12-01), Eickmann
patent: 3628425 (1971-12-01), Morita
patent: 3793923 (1974-02-01), Smith

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