JPS5535173A - Method of and apparatus for enlarging surge margin in centrifugal compressor and axial flow conpressor - Google Patents
Method of and apparatus for enlarging surge margin in centrifugal compressor and axial flow conpressorInfo
- Publication number
- JPS5535173A JPS5535173A JP10877378A JP10877378A JPS5535173A JP S5535173 A JPS5535173 A JP S5535173A JP 10877378 A JP10877378 A JP 10877378A JP 10877378 A JP10877378 A JP 10877378A JP S5535173 A JPS5535173 A JP S5535173A
- Authority
- JP
- Japan
- Prior art keywords
- point
- surge
- high pressure
- enlarging
- surge margin
- 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
Links
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To permit enlargement of the surge margin without reducing the maximum stage efficiency by arranging such that part of fluid on the high pressure side is introduced to an inducer tip portion of a vane wheel at an instant when the working point of the compressor reaches a point right before the surge point or in the neighborhood of a stall point.
CONSTITUTION: When the working point of the compressor reaches a point right before the surge point or the neighborhood of a stall point, this is detected, and at the same time part of the high pressure fluid extracted from a high pressure section of the compressor is led through a duct 14 and an on-off valve 13 to a header section 13, and is injected as a high speed jet from jet ports 12a of an injection ring 12 into an inducer tip section 9c. In consequence, instable low speed fluid over a vane surface 8 is given energy to increase the insensity of turbulence, whereby the boundary layer is prevente from being peeled-off or re-attached. In this way, an effect of enlarging the surge margin is reliably obtained to permit stable operation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10877378A JPS5535173A (en) | 1978-09-02 | 1978-09-02 | Method of and apparatus for enlarging surge margin in centrifugal compressor and axial flow conpressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10877378A JPS5535173A (en) | 1978-09-02 | 1978-09-02 | Method of and apparatus for enlarging surge margin in centrifugal compressor and axial flow conpressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5535173A true JPS5535173A (en) | 1980-03-12 |
Family
ID=14493111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10877378A Pending JPS5535173A (en) | 1978-09-02 | 1978-09-02 | Method of and apparatus for enlarging surge margin in centrifugal compressor and axial flow conpressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5535173A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613999U (en) * | 1984-06-12 | 1986-01-11 | 三菱重工業株式会社 | Casing treatment device for fluid machinery |
| US4930978A (en) * | 1988-07-01 | 1990-06-05 | Household Manufacturing, Inc. | Compressor stage with multiple vented inducer shroud |
| JPH0610885A (en) * | 1992-04-10 | 1994-01-21 | Ingersoll Rand Co | Surge control and recovery of centrifugal compressor |
| EP0606475A4 (en) * | 1991-10-04 | 1994-01-26 | Ebara Corp | Turbo-machine. |
| US5466118A (en) * | 1993-03-04 | 1995-11-14 | Abb Management Ltd. | Centrifugal compressor with a flow-stabilizing casing |
| EP0754864A1 (en) * | 1995-07-18 | 1997-01-22 | Ebara Corporation | Turbomachine |
| US6244817B1 (en) * | 1996-12-05 | 2001-06-12 | Mcdonnell Douglas Corporation | Method and apparatus for a fan noise controller |
| JP2009228625A (en) * | 2008-03-25 | 2009-10-08 | Mitsubishi Heavy Ind Ltd | Casing for axial flow type compressor |
| JP2013072418A (en) * | 2011-09-29 | 2013-04-22 | Mitsubishi Heavy Ind Ltd | Compressor |
| JP2013194687A (en) * | 2012-03-22 | 2013-09-30 | Mitsubishi Heavy Ind Ltd | Multistage centrifugal compressor |
| WO2022202412A1 (en) * | 2021-03-25 | 2022-09-29 | 三菱重工マリンマシナリ株式会社 | Compressor casing, supercharger, and method for operating supercharger |
| DE112012002692B4 (en) | 2011-06-29 | 2022-11-24 | OPRA Technologies, B.V. | Apparatus and method for reducing air mass flow for low emission combustion over an extended range in single spool gas turbines |
-
1978
- 1978-09-02 JP JP10877378A patent/JPS5535173A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613999U (en) * | 1984-06-12 | 1986-01-11 | 三菱重工業株式会社 | Casing treatment device for fluid machinery |
| US4930978A (en) * | 1988-07-01 | 1990-06-05 | Household Manufacturing, Inc. | Compressor stage with multiple vented inducer shroud |
| EP0606475A4 (en) * | 1991-10-04 | 1994-01-26 | Ebara Corp | Turbo-machine. |
| EP0606475A1 (en) * | 1991-10-04 | 1994-07-20 | Ebara Corporation | Turbo-machine |
| US5458457A (en) * | 1991-10-04 | 1995-10-17 | Ebara Corporation | Turbomachine |
| JPH0610885A (en) * | 1992-04-10 | 1994-01-21 | Ingersoll Rand Co | Surge control and recovery of centrifugal compressor |
| US5466118A (en) * | 1993-03-04 | 1995-11-14 | Abb Management Ltd. | Centrifugal compressor with a flow-stabilizing casing |
| EP0754864A1 (en) * | 1995-07-18 | 1997-01-22 | Ebara Corporation | Turbomachine |
| US5707206A (en) * | 1995-07-18 | 1998-01-13 | Ebara Corporation | Turbomachine |
| US6244817B1 (en) * | 1996-12-05 | 2001-06-12 | Mcdonnell Douglas Corporation | Method and apparatus for a fan noise controller |
| JP2009228625A (en) * | 2008-03-25 | 2009-10-08 | Mitsubishi Heavy Ind Ltd | Casing for axial flow type compressor |
| DE112012002692B4 (en) | 2011-06-29 | 2022-11-24 | OPRA Technologies, B.V. | Apparatus and method for reducing air mass flow for low emission combustion over an extended range in single spool gas turbines |
| JP2013072418A (en) * | 2011-09-29 | 2013-04-22 | Mitsubishi Heavy Ind Ltd | Compressor |
| JP2013194687A (en) * | 2012-03-22 | 2013-09-30 | Mitsubishi Heavy Ind Ltd | Multistage centrifugal compressor |
| WO2022202412A1 (en) * | 2021-03-25 | 2022-09-29 | 三菱重工マリンマシナリ株式会社 | Compressor casing, supercharger, and method for operating supercharger |
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