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:
Jul. 17, 2012
Filed:
Oct. 18, 2006
Hyeung-ju Kim, Seoul, KR;
Ji-won Sung, Seoul, KR;
Chang-oh Kim, Gyeonggi-Do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
An operation controlling apparatus for a reciprocating compressor, and a method thereof, which are capable of accurately controlling the reciprocating compressor by sensing a size of a load applied to the reciprocating compressor and a stroke estimation value of the reciprocating compressor and then compensating a parameter of a motor in the reciprocating compressor based upon the sensing, the operation controlling apparatus comprising a controlling unit a controlling unit for comparing a phase difference between a detected current and a stroke with a reference phase difference to determine a size of a load, and outputting, according to the determined size of the load, a compensation control signal to compensate a parameter of a motor and a stroke control signal to control the stroke.