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:
Feb. 28, 2017

Filed:

Dec. 20, 2011
Applicants:

Satoshi Iitsuka, Gunma-ken, JP;

Tsutomu Kon, Gunma-ken, JP;

Akihiro Hayashi, Gunma-ken, JP;

Katsuki Akuzawa, Gunma-ken, JP;

Kenji Aida, Gunma-ken, JP;

Kazuyoshi Sugimoto, Gunma-ken, JP;

Yasunori Kiyokawa, Gunma-ken, JP;

Yoshihiko Nagase, Gunma-ken, JP;

Yoshiaki Nagasawa, Gunma-ken, JP;

Inventors:

Satoshi Iitsuka, Gunma-ken, JP;

Tsutomu Kon, Gunma-ken, JP;

Akihiro Hayashi, Gunma-ken, JP;

Katsuki Akuzawa, Gunma-ken, JP;

Kenji Aida, Gunma-ken, JP;

Kazuyoshi Sugimoto, Gunma-ken, JP;

Yasunori Kiyokawa, Gunma-ken, JP;

Yoshihiko Nagase, Gunma-ken, JP;

Yoshiaki Nagasawa, Gunma-ken, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C 23/02 (2006.01); F04C 18/02 (2006.01); F04C 23/00 (2006.01); F04C 29/02 (2006.01); F04C 29/00 (2006.01);
U.S. Cl.
CPC ...
F04C 23/02 (2013.01); F04C 18/0207 (2013.01); F04C 18/0215 (2013.01); F04C 23/008 (2013.01); F04C 29/0078 (2013.01); F04C 29/026 (2013.01); F04C 29/028 (2013.01); F04C 29/0085 (2013.01);
Abstract

A scroll compression mechanismfor compressing refrigerant and a driving motorthat drives the scroll compression mechanismare accommodated in a casing, the scroll compression mechanismis supported in the casingby a main frame, the driving shaftis connected to a rotorof the driving motorand supported in the casingby a bearing plate, a pickupis connected to an oil supply pathextending in an up-and-down direction in the driving shaft, and intercommunication pathsB,A through which lubrication oil scraped up by the pickupand supplied to respective lubrication sites is returned to the lower side of the driving motorare provided between the statorand the spacer ringor between the spacer ringand the casing


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