Respirator radial compressor with reduced sound emission
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United States of America Patent
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-
Nov 5, 2002
Grant Date -
N/A
app pub date -
Aug 30, 2000
filing date -
Mar 21, 2000
priority date (Note) -
Expired
status (Latency Note)
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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 (4) 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 (8) arranged between the motor (6) and the housing (3), which absorbs the sound energy generated by the high-speed motor (6). Also sound reduction is provided by suspending the radial compressor with membranes in a closed capsule.
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