Variable displacement compressor

Details Variable displacement compressor Variable displacement compressor

1998-09-04

2000-11-14

Walberg, Teresa

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

4172221, 92 122, F04B 126

Patent

active

061461075

ABSTRACT:
A drive plate or lug plate is supported on a drive shaft for integral rotation therewith. A cam plate is coupled to the lug plate by a hinge mechanism to integrally rotate with the drive shaft and tilt with respect to the axis of the drive shaft. The cam plate is coupled to a piston to convert the rotation of the drive shaft into linear reciprocating movement of the piston in a cylinder to compress gas supplied from an external circuit and to discharge the compressed gas outward from the cylinder. The hinge mechanism has a first guide pin projecting to the lug plate from the cam plate, a second guide pin projecting to the lug plate from the cam plate in a position following the first guide pin which is the leading pin with respect to the direction of rotation of the drive shalt, a first guide hole formed in a support arm projecting from the lug plate to receive the first guide pin and a second guide hole formed in a second support arm projecting from the drive plate to receive the second guide pin. The first guide hole is located in a position offset from the second guide hole away from the rear surface of the lug plate by a distance which corresponds to the amount of movement of the cam plate and first guide pin caused by compression reaction on the piston during the compression stroke.

REFERENCES:
patent: 5304042 (1994-04-01), Kayukawa et al.
patent: 5364232 (1994-11-01), Kimura et al.
patent: 5382139 (1995-01-01), Kawaguchi et al.
patent: 5387091 (1995-02-01), Kawaguchi et al.
patent: 5417552 (1995-05-01), Kayukawa et al.
patent: 5517900 (1996-05-01), Kimura et al.
patent: 5540559 (1996-07-01), Kimura et al.
patent: 5644968 (1997-07-01), Kimura et al.
patent: 5699716 (1997-12-01), Ota et al.
patent: 5722310 (1998-03-01), Ota et al.

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