Hinge ball for variable capacity wobble plate compressors and ha

Details Hinge ball for variable capacity wobble plate compressors and ha Hinge ball for variable capacity wobble plate compressors and ha

1995-08-07

1997-08-26

Lopez, F. Daniel

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Parallel cylinders

91505, 219644, 219674, F01B 302

Patent

active

056600976

ABSTRACT:
A hinge ball for a variable capacity wobble plate compressor includes a central through hole 27 for permitting a shaft 5 to loosely extend therethrough, and an outer peripheral wall 9b in a convex form for being slidably fit with an inner peripheral wall 43a in a concave form of a boss 43 of a drive hub 41 rotatively fitted on the shaft 5. The shaft 5 is higher in hardness than the hardness of the boss 43 of the drive hub 41, and the outer peripheral surface 9b in sliding contact with the inner peripheral surface 43a of the boss 43 of said drive hub 41 is lower in hardness than the hardness of the shaft 5 and the boss 43 of the drive hub 41 or equal in hardness thereto. The hardness of the inner peripheral wall 9a defining the central through hole 27 is made higher than the hardness of the boss 43 of the drive hub 41.

REFERENCES:
patent: 2182819 (1939-12-01), Pisarev
patent: 2182820 (1939-12-01), Pisarev
patent: 2214390 (1940-09-01), Wahlmark
patent: 2397629 (1946-04-01), Stevens
patent: 4934253 (1990-06-01), Berthold et al.
patent: 5051067 (1991-09-01), Terauchi
patent: 5252032 (1993-10-01), Iwanami et al.
patent: 5498140 (1996-03-01), Kawaguchi et al.

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