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Title: Supersonic compressor

Abstract

A supersonic compressor including a rotor to deliver a gas at supersonic conditions to a diffuser. The diffuser includes a plurality of aerodynamic ducts that have converging and diverging portions, for deceleration of gas to subsonic conditions and then for expansion of subsonic gas, to change kinetic energy of the gas to static pressure. The aerodynamic ducts include vortex generating structures for controlling boundary layer, and structures for changing the effective contraction ratio to enable starting even when the aerodynamic ducts are designed for high pressure ratios, and structures for boundary layer control. In an embodiment, aerodynamic ducts are provided having an aspect ratio of in excess of two to one, when viewed in cross-section orthogonal to flow direction at an entrance to the aerodynamic duct.

Inventors:
; ;
Issue Date:
Research Org.:
Dresser-Rand Company, Olean, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1246895
Patent Number(s):
9309893
Application Number:
13/542,678
Assignee:
Dresser-Rand Company (Olean, NY)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
DOE Contract Number:  
FE0000493
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jul 06
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Roberts, II, William Byron, Lawlor, Shawn P., and Breidenthal, Robert E.. Supersonic compressor. United States: N. p., 2016. Web.
Roberts, II, William Byron, Lawlor, Shawn P., & Breidenthal, Robert E.. Supersonic compressor. United States.
Roberts, II, William Byron, Lawlor, Shawn P., and Breidenthal, Robert E.. Tue . "Supersonic compressor". United States. https://www.osti.gov/servlets/purl/1246895.
@article{osti_1246895,
title = {Supersonic compressor},
author = {Roberts, II, William Byron and Lawlor, Shawn P. and Breidenthal, Robert E.},
abstractNote = {A supersonic compressor including a rotor to deliver a gas at supersonic conditions to a diffuser. The diffuser includes a plurality of aerodynamic ducts that have converging and diverging portions, for deceleration of gas to subsonic conditions and then for expansion of subsonic gas, to change kinetic energy of the gas to static pressure. The aerodynamic ducts include vortex generating structures for controlling boundary layer, and structures for changing the effective contraction ratio to enable starting even when the aerodynamic ducts are designed for high pressure ratios, and structures for boundary layer control. In an embodiment, aerodynamic ducts are provided having an aspect ratio of in excess of two to one, when viewed in cross-section orthogonal to flow direction at an entrance to the aerodynamic duct.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {4}
}

Works referenced in this record:

Gas turbine engines
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Variable-geometry inlet
patent, November 1986


Radial split diffuser
patent, August 2001


Ramjet engine for power generation
patent, September 2002


Supersonic gas compressor
patent, November 2007


Supersonic compressor
patent, February 2008


Rotary ramjet engine
patent, March 2008


Gas turbine power plant with supersonic shock compression ramps
patent, October 2008


Bleed off valve system
patent, September 2009


Rotary ramjet turbo-generator
patent, March 2010


Adjustable guide device
patent, September 2011


Diffusor
patent, April 2012


Supersonic compressor rotor and method of compressing a fluid
patent, July 2014