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:
Jun. 05, 2007
Filed:
May. 14, 2004
Moon Joo Lee, Suwon, KR;
Seung Kap Lee, Suwon, KR;
Chun MO Sung, Hwasung, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A variable capacity rotary compressor including upper and lower compression chambers having different capacities, and a rotating shaft. Upper and lower eccentric cams are provided on the rotating shaft to be eccentric from the rotating shaft in a same direction. Upper and lower eccentric bushes are fitted over the upper and lower eccentric cams, respectively, to be eccentric from the rotating shaft in opposite directions, with a slot provided at a predetermined position between the upper and lower eccentric bushes. A locking pin functions to change a position of the upper or lower eccentric bush to a maximum eccentric position. The compressor further includes a friction unit to prevent the upper and lower eccentric bushes from slipping. The friction unit is installed at a predetermined portion of the upper eccentric cam, and applies a frictional force to the upper eccentric bush to offset a slip-rotating force of the upper eccentric bush.