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:
Nov. 05, 2002
Filed:
Aug. 30, 2000
Hans-Ulrich Hansmann, Barnitz, DE;
Other;
Abstract
A radial compressor is provided for respiration purposes. The sound emissions generated by deflections and separations of the gas flow in the compressor wheel and the housing of the radial compressor and by the high-speed motor of the radial compressor are reduced. This is achieved with a specially shaped passage channel ( ) for the volume flow, which exerts a stabilizing effect on the volume flow utilizing the Bernoulli principle of flow. Additional sound reduction is provided by using a separate mass ( ) arranged between the motor ( ) and the housing ( ), which absorbs the sound energy generated by the high-speed motor ( ). Also sound reduction is provided by suspending the radial compressor with membranes in a closed capsule.