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:
Feb. 09, 2021
Filed:
Nov. 27, 2017
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yoshinori Ishida, Kyoto, JP;
Shingo Oyagi, Osaka, JP;
Abstract
A refrigerant compressor includes: an electric component; and a compression component driven by the electric component to compress a refrigerant. At least one sliding member constituting the compression component is made of a base material () that is an iron-based material. An abrasion resistance film () including a surface layer constituted by at least fine crystals is formed on a sliding surface of the sliding member. The surface layer () includes an A portion in which a component contained most is diiron trioxide (FeO). The A portion exists within a range of at least 0.3 μm or less from an outermost surface of the sliding surface. The abrasion resistance film () may include at least one intermediate layer (to) located between the surface layer () and the base material (). With this, self-abrasion resistance of the sliding member can be improved, so that the refrigerant compressor having excellent reliability and efficiency can be obtained.