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:
Sep. 28, 2021

Filed:

Nov. 29, 2017
Applicant:

Mitsubishi Heavy Industries, Ltd., Tokyo, JP;

Inventors:

Keita Kitaguchi, Tokyo, JP;

Takahide Ito, Tokyo, JP;

Makoto Takeuchi, Tokyo, JP;

Takuma Yamashita, Tokyo, JP;

Hirofumi Hirata, Kiyosu, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C 18/02 (2006.01); F04C 29/00 (2006.01);
U.S. Cl.
CPC ...
F04C 18/0215 (2013.01); F04C 29/0057 (2013.01); F04C 29/0021 (2013.01); F04C 2230/602 (2013.01); F04C 2240/50 (2013.01); F04C 2240/805 (2013.01); F04C 2240/807 (2013.01);
Abstract

A scroll compressor includes a drive bush disposed in one end portion in an axial direction of a main shaft, and configured to be eccentrically rotated in accordance with rotation of the main shaft, a pair of angular bearings arranged back-to-back, and respectively clearance-fitted to an outside of the drive bush, a compression unit that has a boss portion which protrudes from an end plate of a movable scroll and in which the angular bearings are interference-fitted to an inner peripheral surface of the boss portion, and a preload application unit configured to apply a preload to the angular bearings in a direction in which the angular bearings are configured to move toward each other.


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