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.

Date of Patent:
Aug. 15, 2017

Filed:

Dec. 06, 2012
Applicant:

Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd., Kiyosu-shi, Aichi, JP;

Inventors:

Hirofumi Hirata, Tokyo, JP;

Takayuki Kuwahara, Tokyo, JP;

Hiroshi Yamazaki, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 18/02 (2006.01); F04C 27/00 (2006.01);
U.S. Cl.
CPC ...
F04C 18/0246 (2013.01); F04C 18/0215 (2013.01); F04C 18/0276 (2013.01); F04C 18/0284 (2013.01); F04C 27/005 (2013.01); F04C 2270/13 (2013.01);
Abstract

In a stepped scroll compressor, inclined surfaces () of which heights are gradually reduced toward stepped portions are formed in a range W of at least 2ρ to 3ρ (here, ρ denotes a turning radius of a turning scroll) at (1) any one or both of inner peripheral end portions of high top lands (H,H) of both scrolls and inner peripheral end portions of low bottom lands (J,J) of the opposite scrolls corresponding to the inner peripheral end portions and (2) any one or both of outer peripheral end portions of high bottom lands (K,K) of both the scrolls and outer peripheral end portions of low top lands (I,I) of the opposite scrolls corresponding to the outer peripheral end portions, on the stepped portions (F,F andG,G) of the top and bottom lands.


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