US3771925A - Supersonic centrifugal compressor - Google Patents

Supersonic centrifugal compressor Download PDF

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Publication number
US3771925A
US3771925A US00315961A US3771925DA US3771925A US 3771925 A US3771925 A US 3771925A US 00315961 A US00315961 A US 00315961A US 3771925D A US3771925D A US 3771925DA US 3771925 A US3771925 A US 3771925A
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US
United States
Prior art keywords
compressor
diffuser
rotor
casing
vanes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00315961A
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English (en)
Inventor
J Friberg
J Merigoux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALSACIENES CONST ATOMIQUES TEL
SOC ALSACIENES CONSTRUCTIONS ATOMIQUES TEL ET ELECTRONIQUE FR
Original Assignee
ALSACIENES CONST ATOMIQUES TEL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Application granted granted Critical
Publication of US3771925A publication Critical patent/US3771925A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D21/00—Pump involving supersonic speed of pumped fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors

Definitions

  • ABSTRACT The fixed portion of the rotor casing defines with the disc extension or a rotary disc carrying radially extending blades an annular deceleration space leading into a diffuser whose fixed vanes define passages inclined to the radial direction.
  • the present invention concerns a supersonic centrifugal compressor providing a high compression ratio and increased output.
  • the invention is intended to provide an imrpoved supersonic centrifugal compressor. 7
  • a supersonic centrifugal compressor has a rotor with substantially radially extending blades mounted on the face of a profiled support disc, the external diameter of the disc exceeding that of the blades to form a disc extension.
  • a fixed portion of the rotor casing has an internal surface so arranged that an annular deceleration space is formed between that surface and the disc extension, this deceleration space leading into a diffuser with fixed vanes defining passages inclined to the radial direction.
  • the invention exploits the discovery that in providing a higher deceleration than that obtained with an equiv alent rotary diffuser in a space situated beyond the periphery of the rotor, it is possible not only.to eliminate the mechanical difficulties of providing a rotor with two mobile blade support discs, but also to combine the compressor with a supersonic diffuser at whose entry the fluid is moving at a speed only slightly supersonic such that a system of weak shock waves is obtained.
  • the efficiency of the transformation of kinetic energy into pressure is increased, thereby increasing the overall efficiency.
  • this deceleration is ob tained between the fixed wall of the disc casing and the extension of the blade support disc.
  • the rotor casing is suitably adapted to define a fluid inlet, a rotor shroud confonning to the blade profile, said fixed portion of the rotor casing, and opposite walls of the diffuser supporting fixed vanes thereof.
  • the diffuser preferably provides divergent passages generating substantially plane re-compression waves.
  • leading edges of the fixed vanes of the diffuser are suitably thin to be better adapted to supersonic operation.
  • the faces between which is defined the annular deceleration space namely that of the fixed portion of the rotor casing and that of the blade disc extension, are preferably substantially parallel and provide a significant deceleration of the supersonic flow between their inside and outside diameters.
  • this wall is fixed and only experiences thermal stresses which are easily mastered by one skilled in the art.
  • the diffuser thus receives a flow which is sufficiently decelerated that its speed is only slightly supersonic and it then becomes possible to set up a system of weak shockwaves and to obgain in the fixed diffuser and efficiency approaching unity.
  • the compressor serves for compressing air and has a compression ratio of the order of 9.
  • the compressor has a single rotor 1 with radially extending blades 2 mounted on the face of a profiled support disc 3.
  • the external diameter of the disc 3 exceeds that of the blades 2 to form a disc extension 3'.
  • the rotor casing continues to define a fixed wall portion facing the disc extension 3', an annular deceleration space 4 being defined between this fixed wall and the forward face of the extension 3' which, in use of the compressor, moves at a speed approaching that of the air under compression.
  • This deceleration space 4 leads into a diffuser 6 with fixed blades 9 supported between parallel annular walls formed by sections of the rotor casing.
  • th diffuser 6 has six diverging passages 7 defined by the fixed vanes 9 and arranged at an angle to the radial direction. At the diffuser entry, the air under compression is travelling at supersonic speed.
  • the internal face 5 of the rotor shroud 5 is made as small as practicable so as to avoid loss of speed by the air. Where this face extends beyond the blades 2, to define the disc extension 3' the annular deceleration space 4, it runs substantially parallel to the front face of the extension 3.
  • the overall efficiency of a compressor stage such as just described may reach some per cent.
  • the upstream diffuser wall suffers significant deformations because of its form, in the compressor just described this wall is fixed and so is subject only to thermal deformations which are more readily compensated.
  • a diffuser chamber having fixed vanes defining passages leading from said deceleration chamber and inclined to the radial direction
  • said fixed vanes of said diffuser chamber extending outwardly from a point on said casing generally adjacent the periphery of said disc extension.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US00315961A 1970-01-14 1972-12-18 Supersonic centrifugal compressor Expired - Lifetime US3771925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7001293A FR2076426A5 (enrdf_load_stackoverflow) 1970-01-14 1970-01-14

Publications (1)

Publication Number Publication Date
US3771925A true US3771925A (en) 1973-11-13

Family

ID=9049034

Family Applications (1)

Application Number Title Priority Date Filing Date
US00315961A Expired - Lifetime US3771925A (en) 1970-01-14 1972-12-18 Supersonic centrifugal compressor

Country Status (7)

Country Link
US (1) US3771925A (enrdf_load_stackoverflow)
JP (1) JPS5429722B1 (enrdf_load_stackoverflow)
BE (1) BE761213A (enrdf_load_stackoverflow)
DE (1) DE2101628C3 (enrdf_load_stackoverflow)
FR (1) FR2076426A5 (enrdf_load_stackoverflow)
GB (1) GB1325853A (enrdf_load_stackoverflow)
SE (1) SE412098B (enrdf_load_stackoverflow)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904308A (en) * 1973-05-16 1975-09-09 Onera (Off Nat Aerospatiale) Supersonic centrifugal compressors
US3904312A (en) * 1974-06-12 1975-09-09 Avco Corp Radial flow compressors
US3905721A (en) * 1974-09-03 1975-09-16 Gen Motors Corp Centrifugal compressor diffuser
US4006997A (en) * 1972-11-06 1977-02-08 Compagnie Industrielle Des Telecommunications Cit-Alcatel Supersonic centrifugal compressors
US4156581A (en) * 1977-05-06 1979-05-29 Toyota Jidosha Kogyo Kabushiki Kaisha Centrifugal compressor for a gas turbine
US4323330A (en) * 1979-07-16 1982-04-06 Tec-Air, Inc. Vaneless diffuser
US4431374A (en) * 1981-02-23 1984-02-14 Teledyne Industries, Inc. Vortex controlled radial diffuser for centrifugal compressor
US4915583A (en) * 1986-03-17 1990-04-10 Aciers Et Outillage Peugeot Radial-flow fan in particular for the air-conditioning of a motor vehicle
GB2226857A (en) * 1988-12-06 1990-07-11 Sundstrand Corp Radial-flow impeller
US5046919A (en) * 1989-07-17 1991-09-10 Union Carbide Industrial Gases Technology Corporation High efficiency turboexpander
US5123811A (en) * 1988-12-05 1992-06-23 Kazuo Kuroiwa Supersonic centrifugal compressor
US5228832A (en) * 1990-03-14 1993-07-20 Hitachi, Ltd. Mixed flow compressor
US20030210980A1 (en) * 2002-01-29 2003-11-13 Ramgen Power Systems, Inc. Supersonic compressor
US20050271500A1 (en) * 2002-09-26 2005-12-08 Ramgen Power Systems, Inc. Supersonic gas compressor
US7334990B2 (en) 2002-01-29 2008-02-26 Ramgen Power Systems, Inc. Supersonic compressor
US20080240904A1 (en) * 2007-03-30 2008-10-02 Innovative Energy, Inc. Method of Pumping Gaseous Matter via a Supersonic Centrifugal Pump
US7434400B2 (en) 2002-09-26 2008-10-14 Lawlor Shawn P Gas turbine power plant with supersonic shock compression ramps
US20090241549A1 (en) * 2008-03-25 2009-10-01 Clay Rufus G Subsonic and stationary ramjet engines
US20130014511A1 (en) * 2011-01-04 2013-01-17 Michael Gurin Highly integrated inside-out ramjet
CN105156354A (zh) * 2015-08-20 2015-12-16 深圳智慧能源技术有限公司 离心式压气机及其叶轮
US20160281727A1 (en) * 2015-03-27 2016-09-29 Dresser-Rand Company Apparatus, system, and method for compressing a process fluid
US20170002825A1 (en) * 2015-03-27 2017-01-05 Dresser-Rand Company Balance piston with a sealing member
WO2017028319A1 (zh) * 2015-08-20 2017-02-23 深圳智慧能源技术有限公司 离心式压气机及其叶轮
US10527059B2 (en) 2013-10-21 2020-01-07 Williams International Co., L.L.C. Turbomachine diffuser
US12066027B2 (en) 2022-08-11 2024-08-20 Next Gen Compression Llc Variable geometry supersonic compressor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187515A (en) * 1986-03-06 1987-09-09 Perkins Engines Group Rotary pump
JP2852106B2 (ja) * 1990-07-20 1999-01-27 株式会社日立製作所 電気掃除機及び電動送風機

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369737A (en) * 1962-12-10 1968-02-20 Gen Electric Radial flow machine
US3378229A (en) * 1965-07-16 1968-04-16 Gen Electric Radial flow turbine
US3460748A (en) * 1967-11-01 1969-08-12 Gen Electric Radial flow machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT21977B (de) * 1904-06-19 1905-11-10 Ignaz Feichtinger Laufrad für Schleuderpumpen, Ventilatoren und Dampfturbinen.
DE1096536B (de) * 1953-08-17 1961-01-05 Rheinische Maschinen Und App G Zentrifugalverdichter, aus dessen Laufrad das Foerdermittel mit UEberschallgeschwindigkeit in eine das Laufrad konzentrisch umschliessende Leitvorrichtung eintritt
CH349363A (de) * 1954-10-18 1960-10-15 Garrett Corp Diffusor an einem Überschallradialkompressor
DE1428170B2 (de) * 1963-04-16 1972-01-27 Gutehoffnungshutte Sterkrade AG, 4200 Oberhausen Laeufer fuer einen mehrstufigen radialverdichter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369737A (en) * 1962-12-10 1968-02-20 Gen Electric Radial flow machine
US3378229A (en) * 1965-07-16 1968-04-16 Gen Electric Radial flow turbine
US3460748A (en) * 1967-11-01 1969-08-12 Gen Electric Radial flow machine

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006997A (en) * 1972-11-06 1977-02-08 Compagnie Industrielle Des Telecommunications Cit-Alcatel Supersonic centrifugal compressors
US3904308A (en) * 1973-05-16 1975-09-09 Onera (Off Nat Aerospatiale) Supersonic centrifugal compressors
US3904312A (en) * 1974-06-12 1975-09-09 Avco Corp Radial flow compressors
US3905721A (en) * 1974-09-03 1975-09-16 Gen Motors Corp Centrifugal compressor diffuser
US4156581A (en) * 1977-05-06 1979-05-29 Toyota Jidosha Kogyo Kabushiki Kaisha Centrifugal compressor for a gas turbine
US4323330A (en) * 1979-07-16 1982-04-06 Tec-Air, Inc. Vaneless diffuser
US4431374A (en) * 1981-02-23 1984-02-14 Teledyne Industries, Inc. Vortex controlled radial diffuser for centrifugal compressor
US4915583A (en) * 1986-03-17 1990-04-10 Aciers Et Outillage Peugeot Radial-flow fan in particular for the air-conditioning of a motor vehicle
US5123811A (en) * 1988-12-05 1992-06-23 Kazuo Kuroiwa Supersonic centrifugal compressor
GB2226857A (en) * 1988-12-06 1990-07-11 Sundstrand Corp Radial-flow impeller
GB2226857B (en) * 1988-12-06 1993-04-21 Sundstrand Corp Centrifugal pump and radial-flow impeller therefor.
US5046919A (en) * 1989-07-17 1991-09-10 Union Carbide Industrial Gases Technology Corporation High efficiency turboexpander
US5228832A (en) * 1990-03-14 1993-07-20 Hitachi, Ltd. Mixed flow compressor
US20030210980A1 (en) * 2002-01-29 2003-11-13 Ramgen Power Systems, Inc. Supersonic compressor
US7334990B2 (en) 2002-01-29 2008-02-26 Ramgen Power Systems, Inc. Supersonic compressor
US20050271500A1 (en) * 2002-09-26 2005-12-08 Ramgen Power Systems, Inc. Supersonic gas compressor
US7434400B2 (en) 2002-09-26 2008-10-14 Lawlor Shawn P Gas turbine power plant with supersonic shock compression ramps
US7293955B2 (en) 2002-09-26 2007-11-13 Ramgen Power Systrms, Inc. Supersonic gas compressor
US7866937B2 (en) * 2007-03-30 2011-01-11 Innovative Energy, Inc. Method of pumping gaseous matter via a supersonic centrifugal pump
US20080240904A1 (en) * 2007-03-30 2008-10-02 Innovative Energy, Inc. Method of Pumping Gaseous Matter via a Supersonic Centrifugal Pump
US20110083420A1 (en) * 2008-03-25 2011-04-14 Clay Rufus G Subsonic and Stationary Ramjet Engines
US7765790B2 (en) 2008-03-25 2010-08-03 Amicable Inventions Llc Stationary mechanical engines and subsonic jet engines using supersonic gas turbines
US20090241549A1 (en) * 2008-03-25 2009-10-01 Clay Rufus G Subsonic and stationary ramjet engines
US20130014511A1 (en) * 2011-01-04 2013-01-17 Michael Gurin Highly integrated inside-out ramjet
US10527059B2 (en) 2013-10-21 2020-01-07 Williams International Co., L.L.C. Turbomachine diffuser
US20160281727A1 (en) * 2015-03-27 2016-09-29 Dresser-Rand Company Apparatus, system, and method for compressing a process fluid
US20170002825A1 (en) * 2015-03-27 2017-01-05 Dresser-Rand Company Balance piston with a sealing member
CN105156354A (zh) * 2015-08-20 2015-12-16 深圳智慧能源技术有限公司 离心式压气机及其叶轮
WO2017028319A1 (zh) * 2015-08-20 2017-02-23 深圳智慧能源技术有限公司 离心式压气机及其叶轮
US12066027B2 (en) 2022-08-11 2024-08-20 Next Gen Compression Llc Variable geometry supersonic compressor
US12338829B2 (en) 2022-08-11 2025-06-24 Next Gen Compression Llc Variable geometry supersonic compressor

Also Published As

Publication number Publication date
JPS5429722B1 (enrdf_load_stackoverflow) 1979-09-26
GB1325853A (en) 1973-08-08
BE761213A (fr) 1971-07-05
DE2101628A1 (de) 1972-06-22
DE2101628C3 (de) 1985-07-11
FR2076426A5 (enrdf_load_stackoverflow) 1971-10-15
SE412098B (sv) 1980-02-18
DE2101628B2 (de) 1980-06-26

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