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:
Jul. 09, 1991

Filed:

Sep. 21, 1987
Applicant:
Inventors:

Toshinori Aihara, Atsugi, JP;

Yukio Sudo, Atsugi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F04C / ;
U.S. Cl.
CPC ...
417295 ; 417310 ;
Abstract

A variable-delivery vane-type rotary compressor includes passage means for defining a by-pass passage establishing communication between an aspirator chamber and a compression chamber, the by-pass passage having end openings exposed to the aspirator chamber and the compression chamber; and control means for mechanically controlling the amount of fluid by-passed from the compression chamber to the aspirator chamber through the passage means in accordance with pressure in the aspirator chamber and a discharge chamber.


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