NL98031C - - Google Patents

Info

Publication number
NL98031C
NL98031C NL98031DA NL98031C NL 98031 C NL98031 C NL 98031C NL 98031D A NL98031D A NL 98031DA NL 98031 C NL98031 C NL 98031C
Authority
NL
Netherlands
Prior art keywords
ring
members
diffuser
walls
rings
Prior art date
Application number
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.)
Publication of NL98031C publication Critical patent/NL98031C/xx

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • F01D17/143—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path the shiftable member being a wall, or part thereof of a radial diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

881,882. Centrifugal pumps and compressors. SULZER FRERES S.A. Dec. 8, 1958 [Dec. 23, 1957], No. 39514/58. Class 110 (1). A centrifugal pump or compressor comprises a first ring 4 concentric with the rotor shaft and forming a part of one of the walls of the diffuser of the pump or compressor, the flow cross-section of the diffuser being adjustable by varying the distance S between the diffuser walls by axial movement of the first ring 4, a second ring 13 concentric with but axially spaced from the ring 4 and restrained from axial movement, and at least three motiontransmitting members 12 extending between the two rings and arranged at the same angle of akew α in relation to the rotorshaft, the rings 4, 13 being relatively rotatable and the members 12 being arranged to convert relative rotation of the rings into axial movement of the first ring 4. As shown, the ring 4 is held against push members 11 and the members 12 by a spring 10 and the excess of the pressure between the diffuser walls over that behind the ring 4. Each motion-transmitting member 12 has two spherical ends, one located in a guide passage 14, and the other in a recess 16 in the ring 13. A space 19 containing the motion-transmitting members 12 is sealed off from the diffuser by metal bellows or other sealing members 20 and the first ring 4 has a sealing ring 7. The second ring 13 is rotated by a worm 17 engaging a toothed segment 18 and rotation of the ring will displace the members 12 as in the upper diagram of Fig. 2, which shows the mechanism with the skew angle α at a maximum. The arrangement described compensates for the increasing percentage reduction in flow cross-section for a given movement of the ring 4 as the distance between the walls decreases. An adjusting screw 22 may be provided for adjusting the effective length of the member 12.
NL98031D 1957-12-23 NL98031C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH881882X 1957-12-23

Publications (1)

Publication Number Publication Date
NL98031C true NL98031C (en)

Family

ID=4544909

Family Applications (2)

Application Number Title Priority Date Filing Date
NL224304D NL224304A (en) 1957-12-23
NL98031D NL98031C (en) 1957-12-23

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL224304D NL224304A (en) 1957-12-23

Country Status (5)

Country Link
US (1) US3032259A (en)
CH (1) CH355889A (en)
DE (1) DE1107086B (en)
GB (1) GB881882A (en)
NL (2) NL98031C (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160392A (en) * 1962-01-05 1964-12-08 David U Hunter Turbine with variable nozzle
US3251539A (en) * 1963-05-15 1966-05-17 Westinghouse Electric Corp Centrifugal gas compressors
NL126489C (en) * 1964-05-11
US3289919A (en) * 1964-11-16 1966-12-06 Westinghouse Electric Corp Centrifugal gas compressors
US3391859A (en) * 1966-02-23 1968-07-09 Caterpillar Tractor Co Turbocharger compressor with variable area diffuser
US3362625A (en) * 1966-09-06 1968-01-09 Carrier Corp Centrifugal gas compressor
US3426964A (en) * 1966-10-11 1969-02-11 Dresser Ind Compressor apparatus
US3478955A (en) * 1968-03-11 1969-11-18 Dresser Ind Variable area diffuser for compressor
US3619078A (en) * 1970-06-22 1971-11-09 Carrier Corp Centrifugal gas compressor
US3941498A (en) * 1974-04-08 1976-03-02 Chandler Evans Inc. Variable geometry collector for centrifugal pump
US3975911A (en) * 1974-12-27 1976-08-24 Jury Borisovich Morgulis Turbocharger
US4219305A (en) * 1978-12-26 1980-08-26 Carrier Corporation Diffuser control
CA1119140A (en) * 1978-12-26 1982-03-02 Phiroze Bandukwalla Centrifugal vapor compressor and a diffuser control therefor
US4257733A (en) * 1978-12-26 1981-03-24 Carrier Corporation Diffuser control
US4378194A (en) * 1980-10-02 1983-03-29 Carrier Corporation Centrifugal compressor
US4460310A (en) * 1982-06-28 1984-07-17 Carrier Corporation Diffuser throttle ring control
DE3707103C1 (en) * 1987-03-05 1988-01-28 Borsig Gmbh Turbo work machine of radial design with disc diffuser
US4877369A (en) * 1988-02-08 1989-10-31 Dresser-Rand Company Vaned diffuser control
US4902200A (en) * 1988-04-25 1990-02-20 Dresser-Rand Company Variable diffuser wall with ribbed vanes
US4869642A (en) * 1988-06-09 1989-09-26 Allied-Signal Inc. Variable output vortex pump
US4932835A (en) * 1989-04-04 1990-06-12 Dresser-Rand Company Variable vane height diffuser
US5116197A (en) * 1990-10-31 1992-05-26 York International Corporation Variable geometry diffuser
US6431823B1 (en) * 2000-07-13 2002-08-13 Yudko Slepoy Centrifugal pump with variable capacity and pressure
US6872050B2 (en) * 2002-12-06 2005-03-29 York International Corporation Variable geometry diffuser mechanism
CN1910345B (en) * 2003-12-10 2010-06-02 霍尼韦尔国际公司 Variable nozzle device for turbocharger
FI20050451A (en) * 2005-04-29 2006-10-30 Sulzer Pumpen Ag Centrifugal pump side-plate mounting sealing arrangement and mounting screw thereon
US7762067B2 (en) * 2007-08-21 2010-07-27 Honeywell International, Inc. Turbocharger with sliding piston assembly
GB0807721D0 (en) * 2008-04-29 2008-06-04 Cummins Turbo Tech Ltd A variable geometry turbine
JP5145117B2 (en) * 2008-05-23 2013-02-13 三菱重工業株式会社 Compressor housing
KR20170089949A (en) 2012-11-09 2017-08-04 존슨 컨트롤스 테크놀러지 컴퍼니 Variable geometry diffuser having extended travel and control method thereof
CN104421209B (en) * 2013-08-26 2017-02-08 珠海格力电器股份有限公司 Adjuster structure and centrifugal compressor
CN104632712B (en) * 2013-11-21 2017-02-08 珠海格力电器股份有限公司 Turbo-machine and pressure expander thereof
JP6256142B2 (en) * 2014-03-26 2018-01-10 株式会社豊田自動織機 Centrifugal compressor
DE102015119098B4 (en) * 2015-11-06 2019-03-21 Pierburg Gmbh Control arrangement for a mechanically controllable coolant pump of an internal combustion engine
CN112412809A (en) * 2020-11-20 2021-02-26 潘碧琼 Centrifugal pump capable of reducing internal pressure pulsation
US11885352B1 (en) * 2022-09-12 2024-01-30 Hamilton Sundstrand Corporation Variable channel diffuser with moving floor
US11773870B1 (en) 2022-09-12 2023-10-03 Hamilton Sundstrand Corporation Variable channel diffuser
US11873839B1 (en) * 2022-09-12 2024-01-16 Hamilton Sundstrand Corporation Variable vaneless diffuser with moving floor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1322810A (en) * 1919-11-25 Rotary pump with adjustable gate
DE78038C (en) * BROD-I NITZ & SEYDEL, Berlin N., Am Weddingpl Centrifugal pump with variable discharge width in the paddle wheel
GB305214A (en) * 1928-02-02 1929-10-31 Rateau Soc Improvements in or relating to means for controlling the running of centrifugal machines
US2285976A (en) * 1940-01-15 1942-06-09 Gen Electric Centrifugal compressor
US2875696A (en) * 1951-12-05 1959-03-03 Zborowski Helmut Ph G A R Von Centrifugal pumps, in particular for feeding fuel to fuel injection engines
US2933237A (en) * 1957-05-20 1960-04-19 Gen Electric Compressor

Also Published As

Publication number Publication date
DE1107086B (en) 1961-05-18
NL224304A (en)
US3032259A (en) 1962-05-01
CH355889A (en) 1961-07-31
GB881882A (en) 1961-11-08

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