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. 11, 2014
Filed:
Jul. 06, 2011
Kiminori Iwano, Sagamihara, JP;
Susumu Sakamoto, Kawasaki, JP;
Yoshio Kobayashi, Ebina, JP;
Koichi Tashiro, Chigasaki, JP;
Kiminori Iwano, Sagamihara, JP;
Susumu Sakamoto, Kawasaki, JP;
Yoshio Kobayashi, Ebina, JP;
Koichi Tashiro, Chigasaki, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Abstract
A scroll fluid machine with ensured reliability of an oil seal and a bearing even in a compressor operation at high rpm and high load is provided, which includes: a fixed scroll; an orbiting scroll facing the fixed scroll and having a boss provided on a face opposite to the fixed scroll; a drive shaft having a leading end mounted to the boss; an orbiting bearing supporting the drive shaft in connection with the orbiting scroll; and a seal member placed between the boss and the drive shaft to seal against a lubricant supplied to the orbiting bearing. The seal member has an oil lip producing action of moving the lubricant toward the orbiting bearing by rotation of the drive shaft. A communication passage is provided in the oil lip for communication between a space between the orbiting bearing and the seal member and a space outside the boss.