Supersonic gas compressor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7293955
APP PUB NO 20050271500A1
SERIAL NO

11087336

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A gas compressor based on the use of a driven rotor having a compression ramp traveling at a local supersonic inlet velocity (based on the combination of inlet gas velocity and tangential speed of the ramp) which compresses inlet gas against a stationary sidewall. In using this method to compress inlet gas, the supersonic compressor efficiently achieves high compression ratios while utilizing a compact, stabilized gasdynamic flow path. Operated at supersonic speeds, the inlet stabilizes an oblique/normal shock system in the gasdyanamic flow path formed between the rim of the rotor, the strakes, and a stationary external housing. Part load efficiency is enhanced by the use of a pre-swirl compressor, and using a bypass stream to bleed a portion of the intermediate pressure gas after passing through the pre-swirl compressor back to the inlet of the pre-swirl compressor. Inlet guide vanes to the compression ramp enhance overall efficiency.

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Patent Owner(s)

Patent OwnerAddress
DRESSER-RAND COMPANYPAUL CLARK DRIVE OLEAN NY 14760

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cornelius, Charles C Kirkland, WA 15 152
Lawlor, Shawn P Bellevue, WA 36 653
Novaresi, Mark A San Diego, CA 6 74

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