Pivot portion of a piston shoe in fluid machines

Details Pivot portion of a piston shoe in fluid machines Pivot portion of a piston shoe in fluid machines

1985-09-20

1987-08-11

Smith, Leonard E.

Motors: expansible chamber type

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

Motive fluid bypass to or from assembly

92 58, 92157, F01B 1306

Patent

active

046853812

ABSTRACT:
In a pivot bar portion of a piston shoe in a radial piston device wherein the pivot portion is pivotably borne in a bed in the piston which extends normal to the longitudinal axis of the piston, recesses are provided parallel to the pivot axis whereby bearing lands are formed between the recesses. The bearing lands are tracting fluid out of the recesses along themselves and the bearing bed face of the piston, when the shoes pivot in the piston. A perfectly operational forced lubrication between the pivot portion and the piston is thereby assured which results in a long life and very high bearing capacity between the piston and the piston shoe.

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