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. 17, 2018
Filed:
Jul. 07, 2014
Hitachi Industrial Equipment Systems, Co., Ltd., Chiyoda-ku, Tokyo, JP;
Kawamura Research Laboratories, Inc., Meguro-Ku, Tokyo, JP;
Yukiko Ikeda, Kasumigaura, JP;
Kazuaki Shiinoki, Yokohama, JP;
Masakatsu Okaya, Shizuoka, JP;
Natsuki Kawabata, Shizuoka, JP;
Masahiro Kawamura, Tokyo, JP;
Iwao Aoki, Konosu, JP;
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD., Tokyo, JP;
KAWAMURA RESEARCH LABORATORIES, INC., Tokyo, JP;
Abstract
In order to prevent deterioration in performance of an oil-free screw compressor and scuffing caused by rust, surfaces of both male and female rotors are coated with heat-resistance coatings containing a solid lubricant. A coating contains Polyimide resin to which Molybdenum disulfide, as a solid lubricant, and Aluminum oxide and Titanium oxide, as additives, are added. Accordingly, it is possible to realize a coating that is higher in heat resistance and longer in lifetime than a conventional one.