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. 10, 2001
Filed:
Sep. 15, 1998
Tatsushi Mori, Aichi-ken, JP;
Shinya Yamamoto, Aichi-ken, JP;
Hiroyuki Hayashi, Aichi-ken, JP;
Shigeru Hisanaga, Aichi-ken, JP;
Yukio Ogawa, Aichi-ken, JP;
Tsuyoshi Takemoto, Aichi-ken, JP;
Other;
Abstract
A performance of a compressor is enhanced and durability of scroll bodies is enhanced by optimizing relief to machining tolerance at a central end part of spiral members for forming the scroll bodies. In a scroll type compressor in which a reinforced portion (for example, a large radius of curvature R) reinforced more than in other root corner portions,is provided in a root corner portion,at a central end part in which a stress of the two spiral members,and,is increased, a first relief is formed in a region in which the two spiral members,and,come into contact with each other where the reinforced portion is applied only to one of the spiral members,and,and a second relief larger than the first relief is provided in a region in which the two spiral members come into contact with each other at a portion in which the radius of curvature R is provided in both of the two spiral members, thereby reasonably forming reliefs for avoiding interference at the point of contact of two spiral members.