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:
May. 15, 2012
Filed:
Jan. 28, 2009
Myung-kyun Kiem, Seoul, KR;
Seon-woong Hwang, Seoul, KR;
Myung-Kyun Kiem, Seoul, KR;
Seon-Woong Hwang, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A mode changing apparatus for a scroll compressor is provided that may include a low-pressure passage that communicates with a suction side formed by an orbiting motion of an orbiting scroll, an intermediate-pressure passage that communicates with an intermediate-pressure side formed by the orbiting motion of the orbiting scroll, a block assembly mounted at the fixed scroll and having a connection channel that connects the low-pressure passage and the intermediate-pressure passage, a switching device disposed at the block assembly that opens/closes the connection channel, and a pressure supply device that selectively applies, to the block assembly, a discharge gas pressure discharged from the fixed and orbiting scrolls and a suction gas pressure sucked into the fixed and orbiting scrolls, to thereby operate the switching device. With such a simplified structure, the gas compression capacity of a scroll compressor may be varied, enhancing energy efficiency of a system.