The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 31, 2000

Filed:

Feb. 27, 1998
Applicant:
Inventors:

Masaki Ota, Kariya, JP;

Hisakazu Kobayashi, Kariya, JP;

Masaru Hamasaki, Kariya, JP;

Masayoshi Hori, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
4172222 ; 417269 ; 92 71 ;
Abstract

A variable capacity single-headed piston type refrigerant compressor provided with an aluminum-made cam plate rotating with an axial drive shaft to cause reciprocation of a plurality of single-headed pistons within respective cylinder bores, the cam plate further axially moving in parallel with the drive shaft to adjustably change its angle of inclination with respect to a reference plane perpendicular to the axis of rotation of the drive shaft to thereby adjustably vary the capacity of the compressor, the cam plate being further provided with a weight made of iron system material and generating a centrifugal force on the cam plate during the rotation of the cam plate to thereby produce a moment M2 counteracting an unfavorable moment M1 acting on the cam plate due to the high-speed reciprocation of the pistons.


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