JPS64399A - Diffuser of high speed centrifugal compressor - Google Patents

Diffuser of high speed centrifugal compressor

Info

Publication number
JPS64399A
JPS64399A JP21894187A JP21894187A JPS64399A JP S64399 A JPS64399 A JP S64399A JP 21894187 A JP21894187 A JP 21894187A JP 21894187 A JP21894187 A JP 21894187A JP S64399 A JPS64399 A JP S64399A
Authority
JP
Japan
Prior art keywords
blade
stator
flow rate
high speed
centrifugal compressor
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
JP21894187A
Other languages
Japanese (ja)
Other versions
JPH01399A (en
JPH0615878B2 (en
Inventor
Koji Nakagawa
Takeo Takagi
Yoshiaki Abe
Haruki Sakai
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 JP62218941A priority Critical patent/JPH0615878B2/en
Priority to EP88113797A priority patent/EP0305879B1/en
Priority to DE88113797T priority patent/DE3882463T2/en
Priority to US07/238,176 priority patent/US4877370A/en
Publication of JPH01399A publication Critical patent/JPH01399A/en
Publication of JPS64399A publication Critical patent/JPS64399A/en
Publication of JPH0615878B2 publication Critical patent/JPH0615878B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To exceedingly enlarge the range of operational flow rate by providing an auxiliary blade on the side near the inner circumference between plural stator blades and also providing a middle blade on the side near the outer circumference between plural stator blades.
CONSTITUTION: An auxiliary blade 7 is provided at the position crossed with a circle passing through the front end of a stator blade 4, while being opposed to the stator blade 4 on only the one blade surface thereof. A middle blade 12 is provided in such a way that it passes through the center of the perpendicular directed from the rear end of the stator blade 4 to the adjacent stator blade 4 and reach the circle passing through the rear end of the stator blade 4. The rapid enlargement in a passage cross-section right after the downstream side of the auxiliary blade 7 and the reduction of a choke flow rate are prevented. Therefore, it is possible to exceedingly enlarge the range of the operational flow rate in a high speed centrifugal compressor.
COPYRIGHT: (C)1989,JPO&Japio
JP62218941A 1987-02-26 1987-09-01 High-speed centrifugal compressor diffuser Expired - Lifetime JPH0615878B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62218941A JPH0615878B2 (en) 1987-02-26 1987-09-01 High-speed centrifugal compressor diffuser
EP88113797A EP0305879B1 (en) 1987-09-01 1988-08-24 Diffuser for centrifugal compressor
DE88113797T DE3882463T2 (en) 1987-09-01 1988-08-24 Diffuser for centrifugal compressors.
US07/238,176 US4877370A (en) 1987-09-01 1988-08-30 Diffuser for centrifugal compressor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4338587 1987-02-26
JP62-43385 1987-02-26
JP62218941A JPH0615878B2 (en) 1987-02-26 1987-09-01 High-speed centrifugal compressor diffuser

Publications (3)

Publication Number Publication Date
JPH01399A JPH01399A (en) 1989-01-05
JPS64399A true JPS64399A (en) 1989-01-05
JPH0615878B2 JPH0615878B2 (en) 1994-03-02

Family

ID=26383141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62218941A Expired - Lifetime JPH0615878B2 (en) 1987-02-26 1987-09-01 High-speed centrifugal compressor diffuser

Country Status (1)

Country Link
JP (1) JPH0615878B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0323400A (en) * 1989-06-20 1991-01-31 Matsushita Electric Ind Co Ltd Motor driven blower
JPH0412200A (en) * 1990-04-27 1992-01-16 Fuji Electric Co Ltd Diffuser with vane for pump
JPH06307392A (en) * 1993-04-28 1994-11-01 Hitachi Ltd Centrifugal compressor and diffuser with vanes
US5368440A (en) * 1993-03-11 1994-11-29 Concepts Eti, Inc. Radial turbo machine
US10654251B2 (en) 2015-06-29 2020-05-19 3M Innovative Properties Company Ultrathin barrier laminates and devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119411A (en) * 1977-03-28 1978-10-18 Yasutoshi Senoo Guide vane apparatus for centrifugal blower* compressor and pump*and method of producing the same
JPS57159998A (en) * 1981-03-27 1982-10-02 Hitachi Ltd Diffuser of high-speed centrifugal compressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119411A (en) * 1977-03-28 1978-10-18 Yasutoshi Senoo Guide vane apparatus for centrifugal blower* compressor and pump*and method of producing the same
JPS57159998A (en) * 1981-03-27 1982-10-02 Hitachi Ltd Diffuser of high-speed centrifugal compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0323400A (en) * 1989-06-20 1991-01-31 Matsushita Electric Ind Co Ltd Motor driven blower
JPH0412200A (en) * 1990-04-27 1992-01-16 Fuji Electric Co Ltd Diffuser with vane for pump
US5368440A (en) * 1993-03-11 1994-11-29 Concepts Eti, Inc. Radial turbo machine
JPH06307392A (en) * 1993-04-28 1994-11-01 Hitachi Ltd Centrifugal compressor and diffuser with vanes
US10654251B2 (en) 2015-06-29 2020-05-19 3M Innovative Properties Company Ultrathin barrier laminates and devices

Also Published As

Publication number Publication date
JPH0615878B2 (en) 1994-03-02

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Yamane et al. Numerical study on internal flows of centrifugal compressors[Enshin Asshukuki No Naibu Nagare Nikansuru Suchi Kaiseki]