Supersonic gas compressor

Lawlor, Shawn P; Novaresi, Mark A; Cornelius, Charles C

Title: Supersonic gas compressor

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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/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.

Inventors:

Lawlor, Shawn P ^[1]; Novaresi, Mark A ^[2]; Cornelius, Charles C ^[3]

Bellevue, WA
San Diego, CA
Kirkland, WA

Issue Date:: 2007-11-13

Research Org.:: Ramgen Power Systrms, Inc. (Bellevue, WA)

Sponsoring Org.:: USDOE

OSTI Identifier:: 919891

Patent Number(s):: 7293955

Application Number:: 11/087,336

Assignee:: Ramgen Power Systrms, Inc. (Bellevue, WA)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS

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F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
F04D21/00 - Pump involving supersonic speed of pumped fluids
F04D29/681 - {especially adapted for elastic fluid pumps}
F04D29/682 - {by fluid extraction}

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DOE Contract Number:: FC26-00NT40915

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Citation Formats


                    Lawlor, Shawn P, Novaresi, Mark A, and Cornelius, Charles C. Supersonic gas compressor.  United States: N. p., 2007. 
        Web.

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                    Lawlor, Shawn P, Novaresi, Mark A, & Cornelius, Charles C. Supersonic gas compressor.  United States.

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                    Lawlor, Shawn P, Novaresi, Mark A, and Cornelius, Charles C. Tue .  
        "Supersonic gas compressor".  United States.  https://www.osti.gov/servlets/purl/919891.

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@article{osti_919891,

  title        = {Supersonic gas compressor},

  author       = {Lawlor, Shawn P and Novaresi, Mark A and Cornelius, Charles C},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2007},

  month        = {11}

}

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