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. 18, 2011
Filed:
Jul. 21, 2006
Egerhardt Graf, Joinville, BR;
Rodrigo Link, Joinville, BR;
Fabio Henrique Klein, Joinville, BR;
Cristiano Rafael Schramm, Joinville, BR;
Egerhardt Graf, Joinville, BR;
Rodrigo Link, Joinville, BR;
Fabio Henrique Klein, Joinville, BR;
Cristiano Rafael Schramm, Joinville, BR;
Whirlpool S.A., Sao Paulo-SP, BR;
Abstract
A piston-and-cylinder assembly, used in cooling sys terns that may include, for example, refrigerators, air-conditioning systems and the like. In order to solve the problems of volumetric loss (or of cooling capacity) of compressors in general, according to the present invention, one foresees configuring the cylinder () of the compression chamber in such a manner that the friction will be as low as possible in the phase in which the gas being compresses still does not exert a significant force onto the piston () top and will only have a significant effect during the phase in which the gas to be compressed exerts a greater force onto the piston (), a moment when the volumetric loss impairs the efficiency of the compressor.