Variable displacement hydrualic piston machine saddle bearing

Details Variable displacement hydrualic piston machine saddle bearing Variable displacement hydrualic piston machine saddle bearing

1996-03-08

1997-05-20

Nguyen, Hoang

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Parallel cylinders

92 71, 384 2, 74 60, F01B 300, F16C 3202

Patent

active

056303521

ABSTRACT:
A variable displacement hydraulic piston machine that includes a shaft mounted for rotation within a housing, a plurality of pistons in a cylinder block coupled to the shaft, a yoke engaged by the pistons for controlling displacement of the pistons in the cylinder block, and saddle bearings pivotally mounting the yoke to a base within the housing. Each saddle bearing includes arcuate inner and outer bearing races fixed to the yoke and the housing base respectively, a plurality of rolling elements captured by a cage between the races, and a timing lever positioning and retaining the races and the cage with respect to each other. The timing lever has a central portion pivotally mounted to the bearing between the bearing races, and opposed end portions pivotally received in the housing base and yoke. The lever automatically positions the bearing elements with respect to each other and with respect to the housing base and yoke, and limits movement of the various elements with respect to each other during the assembly process and during operation.

REFERENCES:
patent: 4029367 (1977-06-01), Schwede et al.
patent: 4332426 (1982-06-01), Speicher
patent: 4627330 (1986-12-01), Beck, Jr.
patent: 4856917 (1989-08-01), Schroder et al.
patent: 4858480 (1989-08-01), Rohde et al.
patent: 4862789 (1989-09-01), Burgess et al.
patent: 5515768 (1996-05-01), Fritz et al.

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