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:
Jan. 01, 2013
Filed:
May. 21, 2008
Shigeyuki Koyama, Isesaki, JP;
Shigeyuki Koyama, Isesaki, JP;
Sanden Corporation, Gunma, JP;
Abstract
A device executing a start-up control method for an electric scroll compressor has a thermistor () and a pressure sensor () which, prior to the start-up of the scroll compression unit, detect temperature and pressure of a suction refrigerant introduced into the compression unit (), and a controller () for controlling driving of a motor () of the compression unit () at the start-up of the compressor. The controller () determines at the start-up of the compressor whether or not a liquid refrigerant exists in the compression unit () on the basis of the detected temperature and pressure; selects either a normal start-up mode or a liquid-discharge mode in which the rotational speed of the motor () is regulated to be lower than in the normal start-up mode, according to the determination result; and controls the start-up of the compression unit () through the motor () according to the selected mode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile