JPS54131104A - Centrifugal compressor - Google Patents

Centrifugal compressor

Info

Publication number
JPS54131104A
JPS54131104A JP3859778A JP3859778A JPS54131104A JP S54131104 A JPS54131104 A JP S54131104A JP 3859778 A JP3859778 A JP 3859778A JP 3859778 A JP3859778 A JP 3859778A JP S54131104 A JPS54131104 A JP S54131104A
Authority
JP
Japan
Prior art keywords
inlet
outlet
diffuser
area
throat
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.)
Granted
Application number
JP3859778A
Other languages
Japanese (ja)
Other versions
JPS58594B2 (en
Inventor
Takeshi Kato
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 Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP53038597A priority Critical patent/JPS58594B2/en
Publication of JPS54131104A publication Critical patent/JPS54131104A/en
Publication of JPS58594B2 publication Critical patent/JPS58594B2/en
Expired 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

Abstract

PURPOSE:To prevent the occurrence of inducer stalls by arranging the area of a diffuser throat part variable and by introducing a part of liquid from the outlet to the inlet to blow it out at the inlet. CONSTITUTION:A disc 6 to which diffuser vanes 5 are attached is moved in parallel to an impeller shaft 3, this makes possible to make 1, different from 2 thus changing the area of the diffuser throat, and the fluid outlet 17 of the diffuser and the fluid inlet 15 of the impeller 1 are connected with a fluid passage 18 whose area at the opening 20 is changed by the displacement of the diffuser vane mounting disc 6, and thus a part of fluid at the outlet is introduced to the inlet owing to the pressure difference between the outlet and the inlet and is blown out at the inlet. By so constructing, the change of the throat area results in the change of flow quantity through the pump, and the quantity of the jet flow from the outlet 17 to the inlet 15 is increased as the throat area is decreased, therefore, the occurrence of inducer stalls is prevented.
JP53038597A 1978-03-31 1978-03-31 centrifugal compressor Expired JPS58594B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53038597A JPS58594B2 (en) 1978-03-31 1978-03-31 centrifugal compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53038597A JPS58594B2 (en) 1978-03-31 1978-03-31 centrifugal compressor

Publications (2)

Publication Number Publication Date
JPS54131104A true JPS54131104A (en) 1979-10-12
JPS58594B2 JPS58594B2 (en) 1983-01-07

Family

ID=12529680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53038597A Expired JPS58594B2 (en) 1978-03-31 1978-03-31 centrifugal compressor

Country Status (1)

Country Link
JP (1) JPS58594B2 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118596A (en) * 1980-02-22 1981-09-17 Mitsubishi Heavy Ind Ltd Blower, compressor or pump
JPS6419095U (en) * 1987-08-18 1989-01-31
US4973223A (en) * 1988-05-17 1990-11-27 Holset Engineering Company, Ltd. Variable geometry turbine
US4984965A (en) * 1988-05-17 1991-01-15 Holset Engineering Company Limited Variable geometry turbine inlet wall mounting assembly
JPH0311199A (en) * 1989-06-09 1991-01-18 Hitachi Ltd Mixed flow compressor
US5044880A (en) * 1988-05-17 1991-09-03 Holset Engineering Company Limited Variable geometry turbine actuator assembly
JP2008215250A (en) * 2007-03-06 2008-09-18 Toyota Industries Corp Centrifugal compressor
JP2010196705A (en) * 2009-02-24 2010-09-09 Dyson Technology Ltd Centrifugal compressor
CN104533838A (en) * 2014-12-18 2015-04-22 珠海格力电器股份有限公司 Adjustable diffuser
US9784282B2 (en) 2013-05-03 2017-10-10 Dyson Technology Limited Compressor
JP2020066993A (en) * 2018-10-22 2020-04-30 株式会社Ihi Centrifugal compressor
CN112112838A (en) * 2019-06-19 2020-12-22 开利公司 Diffuser system and centrifugal compressor comprising same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6273695U (en) * 1985-10-29 1987-05-12
JPS6273694U (en) * 1985-10-29 1987-05-12
JPH02307719A (en) * 1989-05-23 1990-12-20 Mazda Motor Corp Reaction injection mold
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
CN105822602A (en) * 2016-05-06 2016-08-03 哈尔滨工程大学 Diffuser bypass anti-surge device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118596A (en) * 1980-02-22 1981-09-17 Mitsubishi Heavy Ind Ltd Blower, compressor or pump
JPS6419095U (en) * 1987-08-18 1989-01-31
US4973223A (en) * 1988-05-17 1990-11-27 Holset Engineering Company, Ltd. Variable geometry turbine
US4984965A (en) * 1988-05-17 1991-01-15 Holset Engineering Company Limited Variable geometry turbine inlet wall mounting assembly
US5044880A (en) * 1988-05-17 1991-09-03 Holset Engineering Company Limited Variable geometry turbine actuator assembly
JPH0311199A (en) * 1989-06-09 1991-01-18 Hitachi Ltd Mixed flow compressor
JP2008215250A (en) * 2007-03-06 2008-09-18 Toyota Industries Corp Centrifugal compressor
JP2010196705A (en) * 2009-02-24 2010-09-09 Dyson Technology Ltd Centrifugal compressor
CN102414452A (en) * 2009-02-24 2012-04-11 戴森技术有限公司 Centrifugal compressor
KR101439940B1 (en) * 2009-02-24 2014-09-12 다이슨 테크놀러지 리미티드 Centrifugal compressor
US9611864B2 (en) 2009-02-24 2017-04-04 Dyson Technology Limited Centrifugal compressor
US9784282B2 (en) 2013-05-03 2017-10-10 Dyson Technology Limited Compressor
CN104533838A (en) * 2014-12-18 2015-04-22 珠海格力电器股份有限公司 Adjustable diffuser
JP2020066993A (en) * 2018-10-22 2020-04-30 株式会社Ihi Centrifugal compressor
CN112112838A (en) * 2019-06-19 2020-12-22 开利公司 Diffuser system and centrifugal compressor comprising same

Also Published As

Publication number Publication date
JPS58594B2 (en) 1983-01-07

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