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. 06, 2021
Filed:
Feb. 09, 2016
Mitsubishi Electric Corporation, Tokyo, JP;
Shuhei Koyama, Tokyo, JP;
Tomokazu Matsui, Tokyo, JP;
Kohei Tatsuwaki, Tokyo, JP;
Yuji Takamura, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A scroll compressor includes a bush having a shaft part and a balance weight part. The balance weight part is secured to an outer periphery of the shaft part by shrink-fitting. The shaft part includes: a cylindrical body part; and a cylindrical coupling part which extends outward from an axial end portion of the body part, and to which the balance weight part is joined. The bush satisfies the following requirements:1.2≤2/1≤1.6; and  (a)1.0≤[(2−3)/(4−2)]×1/2≤3.5,  (b)where Dis the outer diameter of the body part, Dis the outer diameter of the coupling part, Dis the inner diameter of the body part, Dis the outer diameter of the balance weight part, Eis the Young's modulus of the shaft part, and Eis the Young's modulus of the balance weight part.