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, 2012
Filed:
Sep. 18, 2008
Katsuhiro Fujita, Aichi, JP;
Tomohisa Moro, Aichi, JP;
Hirohumi Hirata, Aichi, JP;
Masahiro Ohta, Aichi, JP;
Kazuhide Watanabe, Aichi, JP;
Takayuki Kuwahara, Aichi, JP;
Makoto Takeuchi, Aichi-ken, JP;
Tetuzou Ukai, Aichi, JP;
Katsuhiro Fujita, Aichi, JP;
Tomohisa Moro, Aichi, JP;
Hirohumi Hirata, Aichi, JP;
Masahiro Ohta, Aichi, JP;
Kazuhide Watanabe, Aichi, JP;
Takayuki Kuwahara, Aichi, JP;
Makoto Takeuchi, Aichi-ken, JP;
Tetuzou Ukai, Aichi, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
In a scroll compressor configured to be capable of three-dimensional compression in a circumferential direction and a height direction of spiral wraps, in which top surfaces and bottom surfaces of spiral wraps (B andB) are provided with step portions (E andE) and the wrap height on the outer peripheral side of the step portion is made higher than the wrap height on the inner peripheral side, back-pressure introducing portions (and) where gaps between the back surfaces at step-portion ends of tip seals and groove bottom surfaces of tip seal grooves are made larger than a gap at the other portion are formed between the step-portion ends of tip seals (and) provided on top surfaces (G andG) on the outer peripheral side of the spiral wraps and tip seal grooves (L andL) to which the tip seals are fitted.