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:
Aug. 10, 2010
Filed:
May. 02, 2007
Edmar Baars, Joinville-Sc, BR;
Edson Correa Miguel, Joinville-Sc, BR;
Edmar Baars, Joinville-Sc, BR;
Edson Correa Miguel, Joinville-Sc, BR;
Whirlpool S.A., Sao Paulo-Sp, BR;
Abstract
Resonator arrangement in an acoustic muffler for a refrigeration compressor having a shell (), inside which is mounted an acoustic muffler comprising a hollow body () defining at least one dampening chamber (), which carries a gas inlet duct () and a gas outlet duct (), each presenting a respective length and having a respective wall thickness, at least one of the gas inlet and gas outlet ducts () carrying, extending along at least part of its length, a respective plurality of tube type resonant ducts (), each resonant duct () presenting a first end (), open to the interior of the respective gas duct () and a second end (), opposed to and spaced from the first end (), each said resonant duct () being dimensioned to present a determined length and a determined diameter, which are calculated to define a certain reactive impedance and a certain dissipative impedance for the acoustic muffler, in a determined frequency band.