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:
Jun. 14, 2011
Filed:
Apr. 27, 2006
Marcos Guilherme Schwarz, Joinville, BR;
Roberto Andrich, Joinville, BR;
Fabio Henrique Klein, Joinville, BR;
Marcos Guilherme Schwarz, Joinville, BR;
Roberto Andrich, Joinville, BR;
Fabio Henrique Klein, Joinville, BR;
Whirlpool S.A., Sao Paulo-SP, BR;
Abstract
The present invention relates to a control system for protection against breakage of the lubricating-oil film in the bearings of hermetic compressors, as well as to a control method that has the objective of guaranteeing that a variable-capacity compressor should be maintained above a minimum rotation in order to prevent the oil film close to the respective bearing from breaking. One of the forms of achieving the objectives of the present invention is by means of a control system for protection against break of the lubricating-oil film in bearings of hermetic compressors, a microprocessor () actuating a set of switches (SWM) selectively, so as to generate a rotation at the motor-compressor assembly (), the compressor () having a minimum rotation (RPMmin) of the compressor () so that the oil film will not be broken.