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:
Feb. 03, 2004
Filed:
May. 24, 2002
Applicant:
Inventors:
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 4/906 ;
U.S. Cl.
CPC ...
F04B 4/906 ;
Abstract
In an operation control apparatus of a compressor, a current, a voltage an d a TDC, etc. applied to a compressor are detected, a speed and a TDC are constantly controlled so as to place an operation point of the compressor within a high efficiency operation region by using a phase difference between each detected values (for example, a phase difference between the current and the voltage), and an operation frequency is varied according to a load variation, accordingly an operation efficiency of the compressor can be improved.
Quick Actions:
Yoo, Jae. (2004). Apparatus and method for controlling operation of reciprocating compressor (U.S. Patent No. 6685438). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6685438
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