Rotary kinetic fluid motors or pumps – Smooth runner surface for working fluid frictional contact
Reexamination Certificate
2007-11-13
2007-11-13
Nguyen, Ninh H. (Department: 3745)
Rotary kinetic fluid motors or pumps
Smooth runner surface for working fluid frictional contact
C415S073000, C415S099000, C415S102000, C415S144000, C415S151000, C415S191000, C416S199000, C416S19800R
Reexamination Certificate
active
11087336
ABSTRACT:
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
ormal 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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English Translation of JP Hei 11-351191A.
English Translation of JP2001-295775A.
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Cornelius Charles C.
Lawlor Shawn P.
Novaresi Mark A.
Goodloe, Jr. R. Reams
Nguyen Ninh H.
Ramgen Power Systrms, Inc.
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