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:
Mar. 31, 2009
Filed:
Apr. 12, 2005
Yoon Jei Hwang, Seoul, KR;
Cheol Min Kim, Anyang-si, KR;
Chang Min Choi, Seoul, KR;
Seung Tak Kang, Seoul, KR;
Hyung Soo Lim, Seoul, KR;
Yoon Jei Hwang, Seoul, KR;
Cheol Min Kim, Anyang-si, KR;
Chang Min Choi, Seoul, KR;
Seung Tak Kang, Seoul, KR;
Hyung Soo Lim, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
Disclosed herein is a method of controlling a linear expansion valve of a cooling cycle apparatus. The method comprises a first step of calculating a target opening level value according to suction overheat level of compressors to control a linear expansion valve based on the calculated target opening level value, and a second step of calculating a new target opening level value according to the suction overheat level of the compressors and discharge temperature of the compressors to control the linear expansion valve based on the calculated new target opening level value. Consequently, the discharge temperature of the compressors is prevented from being excessively increased, and therefore, the compressors are prevented from being overheated and damaged, and reliability of the cooling cycle apparatus is improved.