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:
May. 30, 2006
Filed:
Apr. 04, 2002
Dietmar Erich Bernhard Lilie, Joinville, BR;
Ingwald Vollrath, Joinville, BR;
Egidio Berwanger, Joinville, BR;
Rinaldo Puff, Joinville, BR;
Dietmar Erich Bernhard Lilie, Joinville, BR;
Ingwald Vollrath, Joinville, BR;
Egidio Berwanger, Joinville, BR;
Rinaldo Puff, Joinville, BR;
Empresa Brasileira De Compressores S.A. -Embraco, Joinville -SC, BR;
Abstract
An oil pumping system for a reciprocating hermetic compressor having a shell, which defines in the interior thereof an oil sump; a motor compressor assembly; and an oil pump means. The oil pump means is coupled to the compressor by at least one dampening resilient means. The dampening resilient means is dimension to reduce the amplitude of displacement of the oil pump means to a value that is calculated so that the ratio between the natural frequency of resonance (Wn) of the oil pump means and an operation frequency (W) of the compressor results in a ratio between the displacements of the oil pump means and of the compressor with a value inferior to one.