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. 19, 2018
Filed:
Jul. 06, 2016
Whirlpool S.a., Sao Paulo, BR;
Dietmar Erich Bernhard Lilie, Joinville, BR;
Paulo Sergio Dainez, Campinas, BR;
Whirlpool S.A., , BR;
Abstract
A method for protecting a resonant linear compressor () including structural resonance frequencies (w) and a motor that is fed by feed voltage (V) that has amplitude (A) and a drive frequency (w), both controlled according to the equation A·sin(wt). The protection method is configured so as to include the step of preventing feed to the motor at drive frequencies (w) that have at least one harmonic coinciding tithe the structural resonance frequency (w) of the resonant linear compressor (). A protection system of a resonant linear compressor () includes an electronic control () configured to prevent feed to the motor at the drive frequencies (w) that have at least one harmonic coinciding with the structural resonance frequency (w) of the resonant linear compressor ().