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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.:

US 10690385 B1

PDFFull Text
Date of Patent:
Jun. 23, 2020

Filed:

Feb. 08, 2018

Rotary compressor and refrigerating cycle device having bearings containing annular groove/elastic portion arrangement

Applicant:

Toshiba Carrier Corporation, Kawasaki-shi, Kanagawa-ken, JP;

Inventor:

Shinya Gotou, Fuji Shizuoka, JP;

Assignee:

TOSHIBA CARRIER CORPORATION, Kawasaki-shi, JP;

Attorney:

Amin, Turocy & Watson, LLP

Primary Examiner:

Patrick Hamo

Assistant Examiner:

Paul W Thiede

Int. Cl.
CPC ...
F25B 31/02 (2006.01); F04C 18/356 (2006.01); F25B 49/02 (2006.01); F04C 23/00 (2006.01); F25B 1/04 (2006.01); F04C 29/04 (2006.01); F04C 29/12 (2006.01);
U.S. Cl.
CPC ...
F25B 31/026 (2013.01); F04C 18/3564 (2013.01); F04C 18/3568 (2013.01); F04C 23/008 (2013.01); F25B 1/04 (2013.01); F25B 49/022 (2013.01); F04C 23/001 (2013.01); F04C 29/045 (2013.01); F04C 29/12 (2013.01); F04C 2240/52 (2013.01); F04C 2240/60 (2013.01);
Abstract

In one embodiment, an annular groove and an elastic portion are formed at an end portion of a main bearing on a side facing a cylinder chamber. An annular groove and an elastic portion is formed at an end portion of the sub-bearing on a side facing the cylinder chamber. A depth of the annular groove of the main bearing is formed larger than that of the sub-bearing. An outer peripheral surface of the elastic portion of the main bearing is formed in a straight shape so that thicknesses of a base portion and a tip portion of the elastic portion are the same. An outer peripheral surface of the elastic portion of the sub-bearing is formed in a tapered shape so that a thicknesses of a base portion of the elastic portion is larger than that of a tip portion of the elastic portion.

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