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.

Patent No.:

US 6860724 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 01, 2005

Filed:

Jan. 28, 2003
Applicants:

Sung-hea Cho, Suwon, KR;

Sung-yeon Park, Yongin, KR;

Chang-ho Jung, Suwon, KR;

Jong-goo Kim, Seoul, KR;

Inventors:

Sung-Hea Cho, Suwon, KR;

Sung-Yeon Park, Yongin, KR;

Chang-Ho Jung, Suwon, KR;

Jong-Goo Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B049/00 ;
U.S. Cl.
CPC ...
Abstract

A rotary compressor having a plurality of compression chambers and adapted to vary a compression capacity according to a direction of rotation of roller pistons within the compression chambers. A rotating shaft provided with a plurality of eccentric parts drives the roller pistons to compress refrigerant in the compression chambers by eccentric rotations of the eccentric parts. A reversible motor selectively rotates the rotating shaft in opposite directions, and a clutch engages the roller pistons such that the roller pistons perform a compressing action or an idle action according to a rotating direction of the rotating shaft, thus varying the compression capacity of the compressor according to a rotating direction of the rotating shaft. Thus, the compression capacity may be varied without using an inverter circuit.


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