JPS5756698A - Diffuser for centrifugal compressor - Google Patents

Diffuser for centrifugal compressor

Info

Publication number
JPS5756698A
JPS5756698A JP12930180A JP12930180A JPS5756698A JP S5756698 A JPS5756698 A JP S5756698A JP 12930180 A JP12930180 A JP 12930180A JP 12930180 A JP12930180 A JP 12930180A JP S5756698 A JPS5756698 A JP S5756698A
Authority
JP
Japan
Prior art keywords
rib
impeller
ribs
flow
defuser
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
JP12930180A
Other languages
Japanese (ja)
Inventor
Yoichi Kitayama
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 JP12930180A priority Critical patent/JPS5756698A/en
Publication of JPS5756698A publication Critical patent/JPS5756698A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To make it possible to operate a compressor with a high efficiency ever a wide range of flow rate by attaching a multi blade rib consisting of a plurality of ribs to the side plate of an impeller inside a difuser and by streightening the flow of fluid discharged from the impeller.
CONSTITUTION: Multi blade ribs numbering from several pieces to over ten pices are installed to the side plate 1a of the impeller inside a defuser 4. One multi rib consists of three ribs 5a to 5c. The angle of the rib 5a on the most inward side diameter is designed to conform to the flow angle of fluid discharge from the impeller 1 at the design point. The shape of the multi blade rib 5 consisting of the three ribs 5a to 5c is so formed that it may conform to almost a logarithm spiral shape. Each rib 5a to 5c has a height of about 30% of a flow channel width of the defuser 4. This construction makes it possible to straighten a turbulent flow of fluid discharged from the impeller 1.
COPYRIGHT: (C)1982,JPO&Japio
JP12930180A 1980-09-19 1980-09-19 Diffuser for centrifugal compressor Pending JPS5756698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12930180A JPS5756698A (en) 1980-09-19 1980-09-19 Diffuser for centrifugal compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12930180A JPS5756698A (en) 1980-09-19 1980-09-19 Diffuser for centrifugal compressor

Publications (1)

Publication Number Publication Date
JPS5756698A true JPS5756698A (en) 1982-04-05

Family

ID=15006178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12930180A Pending JPS5756698A (en) 1980-09-19 1980-09-19 Diffuser for centrifugal compressor

Country Status (1)

Country Link
JP (1) JPS5756698A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6483895A (en) * 1987-09-28 1989-03-29 Hitachi Ltd Diffuser for centrifugal type hydraulic machine
JPH0278794A (en) * 1988-09-14 1990-03-19 Hitachi Ltd Mixed flow type compressor
EP0610051A1 (en) * 1993-02-03 1994-08-10 Dresser-Rand Company Rib diffuser
JP2009236121A (en) * 2009-07-17 2009-10-15 Mitsubishi Heavy Ind Ltd Diffuser for diagonal flow compressor
WO2016074889A1 (en) * 2014-11-10 2016-05-19 Siemens Aktiengesellschaft Impeller of a radial turbo fluid energy machine, and stage

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6483895A (en) * 1987-09-28 1989-03-29 Hitachi Ltd Diffuser for centrifugal type hydraulic machine
JPH0615879B2 (en) * 1987-09-28 1994-03-02 株式会社日立製作所 Diff user of centrifugal fluid machine
JPH0278794A (en) * 1988-09-14 1990-03-19 Hitachi Ltd Mixed flow type compressor
EP0610051A1 (en) * 1993-02-03 1994-08-10 Dresser-Rand Company Rib diffuser
JP2009236121A (en) * 2009-07-17 2009-10-15 Mitsubishi Heavy Ind Ltd Diffuser for diagonal flow compressor
WO2016074889A1 (en) * 2014-11-10 2016-05-19 Siemens Aktiengesellschaft Impeller of a radial turbo fluid energy machine, and stage
CN107002701A (en) * 2014-11-10 2017-08-01 西门子公司 The impeller of radial turbine fluid energy machine, level

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