US2285976A - Centrifugal compressor - Google Patents

Centrifugal compressor Download PDF

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Publication number
US2285976A
US2285976A US376223A US37622341A US2285976A US 2285976 A US2285976 A US 2285976A US 376223 A US376223 A US 376223A US 37622341 A US37622341 A US 37622341A US 2285976 A US2285976 A US 2285976A
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United States
Prior art keywords
ring
diffuser
impeller
screws
secured
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
US376223A
Inventor
Robert R Huitson
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General Electric Co
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General Electric Co
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Publication date
Priority to GB2285976X priority Critical
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US2285976A publication Critical patent/US2285976A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44Fluid-guiding means, e.g. diffusers
    • F04D29/46Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • F04D29/464Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00Geometry
    • F05D2250/50Inlet or outlet
    • F05D2250/52Outlet

Description

June 9, 1942.
R. R. HUITSON CENTRIFUGAL COMPRESSOR ITWQe ntOT; .Fiobert R. Huibson,
Filed Jan. 27, 1941 His Attorn ey.
Patented June 9, 1942 Robert a. Huitson, Rugby, England, assignor to General Electric Company, a corporation of New York Application January 27, 1941, Serial No. 376,223
--- In Great Britain January 15, 1940 1 Claim. The present invention relates to centrifugal compressors which have a diffuser formed by two spaced rings or walls surrounding an impeller. More specifically, the invention relates to. the type of compressors in which one of the diffuser walls is movably arranged tovobtain the best efficiency at varying load output. Ordinarily the diffuser rings or plates are spaced so that the angle of the fluid flow at normal load is greater than 20, preferably about 35 throughout the major portion of its travel. The angle decreases as the, amount of fluid delivered decreases and vice versa. In order to maintain said angle at the desired value one of the rings or walls of the diffuser may be made adjustable.
l5, which latter has a flanged outlet portion 2|.
7 In order to convert some of the velocity energy of the medium discharged from the impeller a ring or vortex diffuser is provided for receiving the compressed medium from the impeller andconducting it to the scroll Hi. This diffuser has two side walls, one formed by the aforementioned wall l3 and another side wall or ring 22 forming a ring space together'with the wall i3.
In order to adjust the spacing of the rings I3 and 22, means are provided for moving the ring The object of the present invention is to provide an improved construction and arrangement of compressors in which one wall of the diffuser may be readily adjusted to obtain best efliciency at varying load output. This is accomplished in accordance with my invention by the provision of a plurality of adjusting screws engaging one of the diffuser walls or rings and being coupled with a rack and pinion or like means for actuating the screws to effect movement of one wall towards and away from the other wall of the diffuser.
For a better understanding of what I believe to be novel and my invention, attention is directed to the following description and the claim appended thereto in connection with the accompanying drawing.
In the drawing Fig. 1 illustrates a sectional view of a. compressor embodying my invention; Fig. 2 is a side view of Fig. 1; and Fig. 3 isga enlarged detail view of Fig. 1.
The compressor as shown in the drawing has a casing partly formed by two inner walls Ill.
modating an impeller l8 secured to a shaft I!- having a left hand portion supported on the wall I0. The impeller has a plurality of blades rigidly secured together. A right hand end portion of the shaft i9 located in the inlet i2 is supported on a bearing member secured to the inlet l2 by a plurality of fluid directing vanes.
During operation, medium is forced into the inlet l2 and upon compression by the impeller all of the screws, resulting in movement of the 221 towards and away from the ring l3. This means comprises a plurality of uniformly spaced screws 23 having threaded portions 24 engaging threaded portions 25 of, the wall 22. In the present example the right hand end of each screw 23 is supported on a journal bearing 26' on a reinforced, flanged portion 21 of the scroll IS. A left hand portion of each screw 22 is supported on a balibearing 28 held on the ring l3.
The screws are coupled by a rack and pinion arrangement. In the present instance the left hand portion of each screw 23 is provided with a pinion 29 engaging an annular rack 33. The rack 30 is rotatably supported by a plurality of circumferentially, uniformly spaced ballbearings 3 I, each of these bearings being held on a bracket 32 secured to an inner, flanged portion of the ring i3. One of the screws 23 is provided with an extension to which a handwheel 33 is secured by a bolt 34.
During operation, rotation of the handwheel 33 effects rotation of the screws 23 to which the wheel is fastened and simultaneously effects rotation of the rack 30 and the pinions 29 on, the other screws 23. This causes equal rotation of adjustable diffuser ring 22 towards or away from the ring l3, depending upon the direction of roing. In the present example the ring 22 is provided with an inner, cylindrical extension 35 having grooves 36 forming teeth 31 in close.
proximity to the flanged portion 21 of the scroll l5, thus constituting a labyrinth packing to reduceleakage of fluid along the outer surface of the ring 22 facing away from the ring I 3.
Having described the method of operation of my invention, together with the apparatus which I now consider to represent the best embodiment it is forced outward into the discharge scroll thereof, I desire to have it understood that the ing an impeller chamber and a scroll, an impeller located in the impeller chamber and having blades rigidly secured together, a ring diffuser for a conducting fluid from the impeller chamber to the scroll comprising a wall of the casing and a ring disposed within the casing and spaced from said wall, means forming a labyrinth packing.
1 between the ring and the casing, and means includinz a pluralityof circumterentially uniform- -15 v ly spaced screws engaging the ring and rotatably supported on the casing, a pinion secured to each v screw, a rack rctatably supported on the casing and engaging the pinions and a handwheel secured to one of the screws for adjusting the spacing between the wall and the ring said ring having an inner portion conically shaped and forming together with'a corresponding portion of the wall a space with an axial width decreasing in radial direction to assure a smooth flow of'fluid from the impeller into the difluserin the various positions of said rin ROBERT E. mn'rson.
US376223A 1940-01-15 1941-01-27 Centrifugal compressor Expired - Lifetime US2285976A (en)

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Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2715814A (en) * 1949-03-25 1955-08-23 Centrax Power Units Ltd Fuel-flow for plural radial inwardflow gas turbines
US2739782A (en) * 1952-10-07 1956-03-27 Fairchild Engine & Airplane Variable area turbine nozzle
US2803396A (en) * 1954-09-29 1957-08-20 Gen Electric Compressor
US2814431A (en) * 1954-09-29 1957-11-26 Gen Electric Compressor
US2845798A (en) * 1956-09-13 1958-08-05 Berthold A Knauth Vortex flow throttling device
US3032259A (en) * 1957-12-23 1962-05-01 Sulzer Ag Turbocompressor having a radial diffuser
US3071345A (en) * 1961-04-27 1963-01-01 United Aircraft Corp Throttle valve
US3073512A (en) * 1958-06-16 1963-01-15 Thompson Ramo Wooldridge Inc Turbocharger fence ring
US3120374A (en) * 1962-08-03 1964-02-04 Gen Electric Exhaust scroll for turbomachine
US3160392A (en) * 1962-01-05 1964-12-08 David U Hunter Turbine with variable nozzle
US3191851A (en) * 1963-12-31 1965-06-29 Westinghouse Electric Corp Centrifugal fans
US3236500A (en) * 1961-12-09 1966-02-22 Geratebau Eberspacher Ohg Turbine
US3478955A (en) * 1968-03-11 1969-11-18 Dresser Ind Variable area diffuser for compressor
US4292807A (en) * 1979-05-02 1981-10-06 United Technologies Corporation Variable geometry turbosupercharger system for internal combustion engine
US4411592A (en) * 1977-07-13 1983-10-25 Carrier Corporation Pressure variation absorber
US4504188A (en) * 1979-02-23 1985-03-12 Carrier Corporation Pressure variation absorber
US4824323A (en) * 1987-03-05 1989-04-25 Borsig Gmbh Radial turbo-machine with disc diffusor
WO1999058858A1 (en) * 1998-05-08 1999-11-18 York International Corporation Variable geometry diffuser
US6192668B1 (en) 1999-10-19 2001-02-27 Capstone Turbine Corporation Method and apparatus for compressing gaseous fuel in a turbine engine
WO2001090583A1 (en) * 2000-05-19 2001-11-29 The Gorman-Rupp Company Centrigugal pump having adjustable clean-out assembly
US20040119291A1 (en) * 1998-04-02 2004-06-24 Capstone Turbine Corporation Method and apparatus for indirect catalytic combustor preheating
US20040148942A1 (en) * 2003-01-31 2004-08-05 Capstone Turbine Corporation Method for catalytic combustion in a gas- turbine engine, and applications thereof
US6960840B2 (en) 1998-04-02 2005-11-01 Capstone Turbine Corporation Integrated turbine power generation system with catalytic reactor
US20070036643A1 (en) * 2005-08-10 2007-02-15 Envirotech Pumpsystems, Inc. Tool-free adjustable clean out assembly for a pump
US20090100701A1 (en) * 2007-10-17 2009-04-23 Wyssmont Co. Inc. System for sealing an apparatus
US20090205360A1 (en) * 2008-02-20 2009-08-20 Haley Paul H Centrifugal compressor assembly and method
US20090205362A1 (en) * 2008-02-20 2009-08-20 Haley Paul F Centrifugal compressor assembly and method
US20090208331A1 (en) * 2008-02-20 2009-08-20 Haley Paul F Centrifugal compressor assembly and method
EP2315948A1 (en) * 2008-06-13 2011-05-04 Weir Minerals Australia Ltd An adjustable side liner for a pump
US7975506B2 (en) 2008-02-20 2011-07-12 Trane International, Inc. Coaxial economizer assembly and method
US8322056B2 (en) 2009-03-27 2012-12-04 Terra Green Energy, Llc System and method for preparation of solid biomass by torrefaction
WO2013025291A1 (en) * 2011-07-01 2013-02-21 Itt Manufacturing Enterprises, Llc Method and apparatus for adjusting impeller-sealing ring clearance in a pump
EP2626573A1 (en) * 2012-02-09 2013-08-14 Lg Electronics Inc. Centrifugal compressor
CN106368739A (en) * 2015-07-23 2017-02-01 熵零股份有限公司 Adjustable impeller in geometric shape

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2715814A (en) * 1949-03-25 1955-08-23 Centrax Power Units Ltd Fuel-flow for plural radial inwardflow gas turbines
US2739782A (en) * 1952-10-07 1956-03-27 Fairchild Engine & Airplane Variable area turbine nozzle
US2803396A (en) * 1954-09-29 1957-08-20 Gen Electric Compressor
US2814431A (en) * 1954-09-29 1957-11-26 Gen Electric Compressor
US2845798A (en) * 1956-09-13 1958-08-05 Berthold A Knauth Vortex flow throttling device
US3032259A (en) * 1957-12-23 1962-05-01 Sulzer Ag Turbocompressor having a radial diffuser
US3073512A (en) * 1958-06-16 1963-01-15 Thompson Ramo Wooldridge Inc Turbocharger fence ring
US3071345A (en) * 1961-04-27 1963-01-01 United Aircraft Corp Throttle valve
US3236500A (en) * 1961-12-09 1966-02-22 Geratebau Eberspacher Ohg Turbine
US3160392A (en) * 1962-01-05 1964-12-08 David U Hunter Turbine with variable nozzle
US3120374A (en) * 1962-08-03 1964-02-04 Gen Electric Exhaust scroll for turbomachine
US3191851A (en) * 1963-12-31 1965-06-29 Westinghouse Electric Corp Centrifugal fans
US3478955A (en) * 1968-03-11 1969-11-18 Dresser Ind Variable area diffuser for compressor
US4411592A (en) * 1977-07-13 1983-10-25 Carrier Corporation Pressure variation absorber
US4504188A (en) * 1979-02-23 1985-03-12 Carrier Corporation Pressure variation absorber
US4292807A (en) * 1979-05-02 1981-10-06 United Technologies Corporation Variable geometry turbosupercharger system for internal combustion engine
US4824323A (en) * 1987-03-05 1989-04-25 Borsig Gmbh Radial turbo-machine with disc diffusor
US6960840B2 (en) 1998-04-02 2005-11-01 Capstone Turbine Corporation Integrated turbine power generation system with catalytic reactor
US20040119291A1 (en) * 1998-04-02 2004-06-24 Capstone Turbine Corporation Method and apparatus for indirect catalytic combustor preheating
WO1999058858A1 (en) * 1998-05-08 1999-11-18 York International Corporation Variable geometry diffuser
US6139262A (en) * 1998-05-08 2000-10-31 York International Corporation Variable geometry diffuser
US6192668B1 (en) 1999-10-19 2001-02-27 Capstone Turbine Corporation Method and apparatus for compressing gaseous fuel in a turbine engine
US20030206797A1 (en) * 2000-05-19 2003-11-06 Mesiter David L. Centrigugal pump having adjustable clean-out assembly
AU2001264692B2 (en) * 2000-05-19 2004-07-01 The Gorman-Rupp Company Centrigugal pump having adjustable clean-out assembly
US6887034B2 (en) * 2000-05-19 2005-05-03 The Gorman-Rupp Company Centrifugal pump having adjustable clean-out assembly
WO2001090583A1 (en) * 2000-05-19 2001-11-29 The Gorman-Rupp Company Centrigugal pump having adjustable clean-out assembly
US20040148942A1 (en) * 2003-01-31 2004-08-05 Capstone Turbine Corporation Method for catalytic combustion in a gas- turbine engine, and applications thereof
US20070036643A1 (en) * 2005-08-10 2007-02-15 Envirotech Pumpsystems, Inc. Tool-free adjustable clean out assembly for a pump
WO2007021870A3 (en) * 2005-08-10 2008-03-20 Envirotech Pumpsystems Inc Tool-free adjustable clean-out assembly for a pump
US20090100701A1 (en) * 2007-10-17 2009-04-23 Wyssmont Co. Inc. System for sealing an apparatus
US7856834B2 (en) 2008-02-20 2010-12-28 Trane International Inc. Centrifugal compressor assembly and method
US20090205362A1 (en) * 2008-02-20 2009-08-20 Haley Paul F Centrifugal compressor assembly and method
US20090208331A1 (en) * 2008-02-20 2009-08-20 Haley Paul F Centrifugal compressor assembly and method
US20090205360A1 (en) * 2008-02-20 2009-08-20 Haley Paul H Centrifugal compressor assembly and method
US8627680B2 (en) 2008-02-20 2014-01-14 Trane International, Inc. Centrifugal compressor assembly and method
US9353765B2 (en) 2008-02-20 2016-05-31 Trane International Inc. Centrifugal compressor assembly and method
US9556875B2 (en) 2008-02-20 2017-01-31 Trane International Inc. Centrifugal compressor assembly and method
US7975506B2 (en) 2008-02-20 2011-07-12 Trane International, Inc. Coaxial economizer assembly and method
US8037713B2 (en) 2008-02-20 2011-10-18 Trane International, Inc. Centrifugal compressor assembly and method
US9683758B2 (en) 2008-02-20 2017-06-20 Trane International Inc. Coaxial economizer assembly and method
CN102066770A (en) * 2008-06-13 2011-05-18 伟尔矿物澳大利亚私人有限公司 An adjustable side liner for a pump
EP2315948A4 (en) * 2008-06-13 2013-04-03 Weir Minerals Australia Ltd An adjustable side liner for a pump
US20110142599A1 (en) * 2008-06-13 2011-06-16 Kevin Edward Burgess Adjustable side liner for a pump
EP2315948A1 (en) * 2008-06-13 2011-05-04 Weir Minerals Australia Ltd An adjustable side liner for a pump
US8790077B2 (en) 2008-06-13 2014-07-29 Weir Minerals Australia Ltd. Adjustable side liner for a pump
US9759224B2 (en) 2008-06-13 2017-09-12 Weir Minerals Australia Ltd. Adjustable side liner for a pump
US8322056B2 (en) 2009-03-27 2012-12-04 Terra Green Energy, Llc System and method for preparation of solid biomass by torrefaction
US9051940B2 (en) 2011-07-01 2015-06-09 Itt Manufacturing Enterprises Llc. Method and apparatus for adjusting impeller/ring clearance in a pump
CN103688060A (en) * 2011-07-01 2014-03-26 Itt制造企业有限责任公司 Method and apparatus for adjusting impeller-sealing ring clearance in a pump
WO2013025291A1 (en) * 2011-07-01 2013-02-21 Itt Manufacturing Enterprises, Llc Method and apparatus for adjusting impeller-sealing ring clearance in a pump
EP2626573A1 (en) * 2012-02-09 2013-08-14 Lg Electronics Inc. Centrifugal compressor
CN106368739A (en) * 2015-07-23 2017-02-01 熵零股份有限公司 Adjustable impeller in geometric shape

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