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:
Nov. 18, 2014
Filed:
Aug. 10, 2010
Yuichi Yanagase, Namegata, JP;
Eiji Sato, Kasumigaura, JP;
Isamu Tsubono, Ushiku, JP;
Mutsunori Matsunaga, Shizuoka, JP;
Satoshi Nakamura, Shizuoka, JP;
Masatsugu Chikano, Mito, JP;
Yuichi Yanagase, Namegata, JP;
Eiji Sato, Kasumigaura, JP;
Isamu Tsubono, Ushiku, JP;
Mutsunori Matsunaga, Shizuoka, JP;
Satoshi Nakamura, Shizuoka, JP;
Masatsugu Chikano, Mito, JP;
Hitachi Appliances, Inc., Tokyo, JP;
Abstract
A scroll compressor is provided in which the amount of lubricant oil supply is appropriately controlled over a low to high rotational frequency range of the scroll compressor. The scroll compressor has an oil supply unit and an oil supply passage. The oil supply unit includes a small hole with a diameter not exceeding a seal ring width of the sealing part and a groove which are formed on the end plate of the boss portion on the back side of the orbiting scroll. As the orbiting scroll orbitally moves, oil in the high pressure hydraulic chamber pools in the small hole to be discharged, across the seal ring, into the back pressure chamber. The oil supply passage communicates between the high pressure hydraulic chamber and the back pressure chamber.