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.:
Date of Patent:
Aug. 19, 2003
Filed:
Aug. 06, 2001
Yoshitaka Shibamoto, Sakai, JP;
Mikio Kajiwara, Sakai, JP;
Hiroshi Kitaura, Sakai, JP;
Suguru Ishiguro, Sakai, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A fixed scroll ( ) and a movable scroll ( ) form a compression chamber ( ). A first back pressure chamber ( ) is formed on the back surface of the movable scroll ( ). The first back pressure chamber receives a fluid of a discharge pressure. An unloader mechanism ( ) is provided for guiding refrigerant gas from the compression chamber ( ) in the process of compression toward a suction port ( ). A control part ( ) is provided for controlling the unloader mechanism ( ). When separating force is to exceed pressing force, the control part detects this and operates the unloader part for guiding the fluid from the compression chamber in the process of compression toward the suction part. Thus obtained is a scroll compressor attaining relatively sufficient pressing force by reducing separating force also when pressing force is reduced and suppressing internal leakage.