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. 09, 1998
Filed:
Jan. 30, 1997
Edemar Baars, Joinville - SC, BR;
Edson Correa Miguel, Joinville - SC, BR;
Empresa Brasileira De Compressores S/A - Embarco, Joinville - SC, BR;
Abstract
In a compressor there is a hermetic case (1) having a high pressure gas outlet (1a) that houses a cylinder block (3) defining a gas suction chamber (7) and a gas discharge chamber (8). A main gas discharge tube (9) has an inlet end (9a) in fluid communication with the gas discharge chamber (8) and an outlet end (9b) communicating the gas discharge chamber (8) with the gas outlet (1a) of the case. At least one gas discharge auxiliary tube (10) is provided with an inlet end (11) receiving gas from the discharge chamber (8) and an outlet end (12) to provide the gas to the gas stream flowing in the main gas discharge tube. Each discharge auxiliary tube (10) has a length corresponding to a fraction, or multiple, of the wave length of a frequency of a gas pulsation signal at the gas discharge chamber outlet and produces at its gas outlet end (12) where it mixes with the gas from the main discharge tube, a modification in the phase of a determined frequency of said gas pulsation signal to reduce the intensity of this signal at the gas outlet (1a) of the hermetic case (1).