Flow restricting structure of communicating passages between cha

Details Flow restricting structure of communicating passages between cha Flow restricting structure of communicating passages between cha

1995-09-13

1997-03-25

Thorpe, Timothy

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

F04B 126

Patent

active

056138369

ABSTRACT:
A piston reciprocating type compressor has a passage structure for connecting a crank chamber to a discharge chamber and/or a suction chamber. A gas bleeding passage connects the crank chamber to the suction chamber. The gas compressed by the piston in the cylinder bore is leaked to the crank chamber causing the pressure raise in the crank chamber. The bleeding passage release the excessive pressure in the crank chamber to the suction chamber. The bleeding passage is partially deformed by a notch formed in a gasket. The notch has a smaller sectional area than the rest of the bleeding passage, regulating the pressure transmitted from the crank chamber to the suction chamber.

REFERENCES:
patent: 4688997 (1987-08-01), Suzuki et al.
patent: 4747754 (1988-05-01), Fujii et al.
patent: 4867649 (1989-09-01), Kawashima et al.
patent: 4913626 (1990-04-01), Terauchi
patent: 5071321 (1991-12-01), Skinner et al.
patent: 5332365 (1994-07-01), Taguchi
patent: 5380161 (1995-01-01), Takenaka et al.

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