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:
Mar. 24, 2009
Chun-han Chen, Hsinchu, TW;
Chung-ping Chiang, Hsinchu, TW;
Ching-fu Chen, Hsinchu, TW;
Yun-jui Chung, Hsinchu, TW;
Yen-chieh Wang, Hsinchu, TW;
Chun-Han Chen, Hsinchu, TW;
Chung-Ping Chiang, Hsinchu, TW;
Ching-Fu Chen, Hsinchu, TW;
Yun-Jui Chung, Hsinchu, TW;
Yen-Chieh Wang, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A system and method for monitoring and controlling oil return to a compressor, characterized by monitoring and controlling oil level, oil temperature, and compressor outlet pressure, so as to determine whether the oil level is lower than a predetermined level threshold, whether the temperature in the lubricating oil box is lower than a predetermined temperature threshold, and whether the compressor outlet pressure exceeds a predetermined pressure threshold, so as to control the flow of lubricating oil returned to the oil box by controlling the valve opening of the oil return valve according to a non-segmentation principle or a segmentation principle, ensure sufficient lubricating oil in the oil box, and enhance efficiency of the system.