Compressor piston with a basic hollow design

Details Compressor piston with a basic hollow design Compressor piston with a basic hollow design

1996-06-17

1997-05-20

Denion, Thomas E.

Expansible chamber devices

Relatively movable working members

Interconnected with common rotatable shaft

92172, 417269, F01B 300

Patent

active

056303530

ABSTRACT:
A swash plate piston (20) of integral, one piece design has outer surface portions in contact with much of the total available inner surface of the cylinder bore (18), but with a basically hollow design that can be easily manufactured. Outer (36) and inner (38) semi cylindrical segments of the piston (20) extend axially back from a cylindrical head (32), but leave the center of the piston body entirely open and empty. A slanted wing member (40) extends out and down from the inner segment (38), into the outer segment (36), creating a four sided, frame like structure of superior strength. All of the outboard outer surfaces of the piston (20) lie on the same cylindrical envelope as the cylinder bore (18) itself, giving good, even support. However, none of the outer surfaces, outboard or inboard, present any concavities that would jeopardize the ability to form the piston (20) with only two forming elements that part in a straight line.

REFERENCES:
patent: 4526516 (1985-07-01), Swain et al.
patent: 5174728 (1992-12-01), Kimura et al.
patent: 5304042 (1994-04-01), Kayukawa et al.
patent: 5316447 (1994-05-01), Fuji et al.
patent: 5364232 (1994-11-01), Kimura et al.
patent: 5382139 (1995-01-01), Kawaguchi et al.
patent: 5417552 (1995-05-01), Kayukawa et al.
patent: 5461967 (1995-10-01), Burkett et al.

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