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:
Oct. 11, 2011
Filed:
Jan. 19, 2005
Paulo Sergio Dainez, Joinville, BR;
Dietmar Erich Bernhard Lillie, Joinville, BR;
Marcio Roberto Thiessen, Joinville, BR;
Paulo Sergio Dainez, Joinville, BR;
Dietmar Erich Bernhard Lillie, Joinville, BR;
Marcio Roberto Thiessen, Joinville, BR;
Whirlpool S.A., Sao Paulo, BR;
Abstract
A linear motor (), a linear compressor (), a method of controlling a linear compressor (), a cooling system () and a system of controlling a linear compressor () to operate a linear compressor () in resonance in it's the greatest possible efficiency throughout its operation are described. One of the ways of achieving these objectives is by means of a linear compressor () applicable to a cooling system (), the linear compressor () comprising a piston () driven by a linear motor (), the piston () having displacement range controlled by means of a controlled voltage (V), the controlled voltage (V) having a voltage frequency (φ) applied to the linear motor () and adjusted by a processing unit (), the range of piston () displacement being dynamically controlled in function of a variable demand of the cooling system (), the linear compressor () having a resonance frequency, the processing unit () adjusting the range of piston () displacement, so that the linear compressor () will be dynamically kept on resonance throughout the variations in demand of the cooling system ().