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:
Apr. 18, 2006
Filed:
May. 28, 2004
Lung-tsai Chang, Taoyuan Hsien, TW;
Chung-pen Chiu, Taoyuan Hsien, TW;
Lung-Tsai Chang, Taoyuan Hsien, TW;
Chung-Pen Chiu, Taoyuan Hsien, TW;
Rechi Precision Co., Ltd., Taoyuan Hsien, TW;
Abstract
A backpressure mechanism for a scroll type compressor to effectively prevent leakage of coolant; a recessed seat being provided at the top of a coolant passage at the center of a fixed scroll; a ring groove being disposed on the outer circumference of the recessed seat; a high-pressure sealing assembly comprised of a high-pressure ring, a sealing device and a high pressure ring seat and a medium-pressure sealing assembly comprised of a medium-pressure ring, a sealing device and a medium-pressure ring seat being respectively provided to the recessed seat and the ring groove; pressure from the compressed coolant causing an axially compromising vacuum unloading function to float the both sealing assemblies.