JPS54104007A - Diffuser for centrifugal compressor - Google Patents

Diffuser for centrifugal compressor

Info

Publication number
JPS54104007A
JPS54104007A JP928778A JP928778A JPS54104007A JP S54104007 A JPS54104007 A JP S54104007A JP 928778 A JP928778 A JP 928778A JP 928778 A JP928778 A JP 928778A JP S54104007 A JPS54104007 A JP S54104007A
Authority
JP
Japan
Prior art keywords
diffuser
shall
wall
compressor
impeller
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.)
Pending
Application number
JP928778A
Other languages
Japanese (ja)
Inventor
Masayoshi Sakamoto
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP928778A priority Critical patent/JPS54104007A/en
Publication of JPS54104007A publication Critical patent/JPS54104007A/en
Pending legal-status Critical Current

Links

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
    • 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)

Abstract

PURPOSE: To obtain high efficiency throughout a wide operation range of a compressor with large variation in rate of flow by constituting so that ratio of the flow width at the inlet of a vaneless diffuser to the one a the outlet can be varied.
CONSTITUTION: In a diffuser designed for centrifugal compressors consisting of a vaneless diffuser 1a provided outside the impeller 2 and a diffuser 1b with circular vanes arranged in one or more rows, a side wall of the vaneless diffuser 1a (on the core plate side of the impeller 2) shall form a fixed wall 1e and the other side shall form a mobile wall 1d. This mobile wall 1d made of elastic matials into thin plate shall have a configration forming a part of the conical face coaxial with the rotary axis of the compressor and the inner end in the radial direction shall be fixed to the casing 3. Varying the flow width of the diffuser 1a will be obtained in such a way as turning the plate cam 5 with the lever 9, that moves the rod 6 in the axial direction and thereby pushes or pulls the mobile wall 1d.
COPYRIGHT: (C)1979,JPO&Japio
JP928778A 1978-02-01 1978-02-01 Diffuser for centrifugal compressor Pending JPS54104007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP928778A JPS54104007A (en) 1978-02-01 1978-02-01 Diffuser for centrifugal compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP928778A JPS54104007A (en) 1978-02-01 1978-02-01 Diffuser for centrifugal compressor

Publications (1)

Publication Number Publication Date
JPS54104007A true JPS54104007A (en) 1979-08-15

Family

ID=11716254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP928778A Pending JPS54104007A (en) 1978-02-01 1978-02-01 Diffuser for centrifugal compressor

Country Status (1)

Country Link
JP (1) JPS54104007A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325398A (en) * 1986-07-02 1988-02-02 キャリア・コ−ポレイション Centrifugal compressor and control method thereof
FR2619812A1 (en) * 1987-08-31 1989-03-03 Zinpro Corp FERRIC ION-CATALYSED PROCESS FOR COMPLEXING ZINC AND / OR MANGANESE WITH ALPHA-AMINO ACIDS
US4824323A (en) * 1987-03-05 1989-04-25 Borsig Gmbh Radial turbo-machine with disc diffusor
US4850795A (en) * 1988-02-08 1989-07-25 Dresser-Rand Company Diffuser having ribbed vanes followed by full vanes
EP0341553A1 (en) * 1988-05-09 1989-11-15 Gec Alsthom Sa Centrifugal pump
US6343913B1 (en) * 1997-09-30 2002-02-05 Ebara Corporation Hydraulic turbomachine
JP2007211716A (en) * 2006-02-10 2007-08-23 Ishikawajima Harima Heavy Ind Co Ltd Turbo compressor and freezer equipped with turbo compressor
CN102182710A (en) * 2011-03-23 2011-09-14 清华大学 Centrifugal compressor with asymmetrical vane-less diffusers and producing method thereof
EP3056690A1 (en) * 2015-02-11 2016-08-17 Robert Bosch Gmbh Centrifugal compressor, exhaust gas turbocharger and corresponding method for operating a centrifugal compressor
WO2018165474A1 (en) * 2017-03-09 2018-09-13 Johnson Controls Technology Company Variable geometry diffuser ring

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325398A (en) * 1986-07-02 1988-02-02 キャリア・コ−ポレイション Centrifugal compressor and control method thereof
US4824323A (en) * 1987-03-05 1989-04-25 Borsig Gmbh Radial turbo-machine with disc diffusor
FR2619812A1 (en) * 1987-08-31 1989-03-03 Zinpro Corp FERRIC ION-CATALYSED PROCESS FOR COMPLEXING ZINC AND / OR MANGANESE WITH ALPHA-AMINO ACIDS
US4850795A (en) * 1988-02-08 1989-07-25 Dresser-Rand Company Diffuser having ribbed vanes followed by full vanes
EP0341553A1 (en) * 1988-05-09 1989-11-15 Gec Alsthom Sa Centrifugal pump
US6343913B1 (en) * 1997-09-30 2002-02-05 Ebara Corporation Hydraulic turbomachine
JP2007211716A (en) * 2006-02-10 2007-08-23 Ishikawajima Harima Heavy Ind Co Ltd Turbo compressor and freezer equipped with turbo compressor
CN102182710A (en) * 2011-03-23 2011-09-14 清华大学 Centrifugal compressor with asymmetrical vane-less diffusers and producing method thereof
EP3056690A1 (en) * 2015-02-11 2016-08-17 Robert Bosch Gmbh Centrifugal compressor, exhaust gas turbocharger and corresponding method for operating a centrifugal compressor
WO2018165474A1 (en) * 2017-03-09 2018-09-13 Johnson Controls Technology Company Variable geometry diffuser ring
CN110582647A (en) * 2017-03-09 2019-12-17 江森自控科技公司 Variable geometry diffuser ring

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