EP1069315A3 - Turbo machines - Google Patents

Turbo machines Download PDF

Info

Publication number
EP1069315A3
EP1069315A3 EP00114868A EP00114868A EP1069315A3 EP 1069315 A3 EP1069315 A3 EP 1069315A3 EP 00114868 A EP00114868 A EP 00114868A EP 00114868 A EP00114868 A EP 00114868A EP 1069315 A3 EP1069315 A3 EP 1069315A3
Authority
EP
European Patent Office
Prior art keywords
impeller
groove
grooves
casing
ratio
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
EP00114868A
Other languages
German (de)
French (fr)
Other versions
EP1069315A2 (en
EP1069315B1 (en
Inventor
Junichi Kurokawa
Hitoharu Kimura
Tomoyoshi Okamura
Takahide Nagahara
Sumio Sudo
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.)
KUROKAWA, JUNICHI
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
Publication of EP1069315A2 publication Critical patent/EP1069315A2/en
Publication of EP1069315A3 publication Critical patent/EP1069315A3/en
Application granted granted Critical
Publication of EP1069315B1 publication Critical patent/EP1069315B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/688—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/009—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by bleeding, by passing or recycling fluid
    • 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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • 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
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/685—Inducing localised fluid recirculation in the stator-rotor interface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A turbo machine comprising: an impeller having a plurality of blades therewith; a casing having a flow surface defined therein and being positioned with the impeller therein; and a plurality of grooves being formed in the flow surface of the casing, for connecting between an inlet side of said impeller and an area on the flow surface of the casing in which the blades of said impeller reside, on a periphery thereof, wherein an index of determining a form of the grooves is obtained by a following equation: <DF>JE No. = WR x VR x WDR x DLDR </DF> where, WR (a width ratio) is a value obtained by dividing a total value of the groove widths W with a length of casing periphery; VR (a volume ratio) is a value obtained by dividing a total volume of said grooves with a volume of said impeller; WDR (a width-depth ratio) is a value obtained by dividing the width W of said groove with a depth D of said groove; and DLDR is a ratio between a length of said groove in flow, being lower than the impeller inlet and the depth of said groove, and wherein, said grooves are formed so that the index JE No. lies in a range from 0.03 to 0.5. <IMAGE>
EP00114868A 1999-07-15 2000-07-11 Turbo machines Expired - Lifetime EP1069315B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP20130299 1999-07-15
JP20130299 1999-07-15

Publications (3)

Publication Number Publication Date
EP1069315A2 EP1069315A2 (en) 2001-01-17
EP1069315A3 true EP1069315A3 (en) 2002-05-29
EP1069315B1 EP1069315B1 (en) 2007-09-12

Family

ID=16438754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114868A Expired - Lifetime EP1069315B1 (en) 1999-07-15 2000-07-11 Turbo machines

Country Status (4)

Country Link
EP (1) EP1069315B1 (en)
CN (1) CN1221741C (en)
AT (1) ATE373175T1 (en)
DE (1) DE60036336T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108050074A (en) * 2017-11-09 2018-05-18 西安理工大学 A kind of import Taper Pipe that can improve axial-flow pump stability

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1247991B1 (en) * 2001-04-05 2005-10-12 Hitachi, Ltd. Centrifugal pump
DE10258922A1 (en) * 2002-12-17 2004-07-01 Ksb Aktiengesellschaft suction
CN1323225C (en) * 2003-07-16 2007-06-27 沈阳黎明航空发动机(集团)有限责任公司 Method for changing turbine fan engine into industrial combustion machine
KR100568183B1 (en) * 2004-01-08 2006-04-05 삼성전자주식회사 Turbo compressor
FR2912789B1 (en) * 2007-02-21 2009-10-02 Snecma Sa CARTER WITH CARTER TREATMENT, COMPRESSOR AND TURBOMACHINE COMPRISING SUCH A CARTER.
EP2031184A1 (en) * 2007-08-31 2009-03-04 Siemens Aktiengesellschaft Flow straightener for a turbo engine
DE102008052401A1 (en) 2008-10-21 2010-04-22 Rolls-Royce Deutschland Ltd & Co Kg Turbine working machine with running column feeder
FR2961564B1 (en) * 2010-06-17 2016-03-04 Snecma COMPRESSOR AND OPTIMIZED TURBOMACHINE
CN102817873B (en) * 2012-08-10 2015-07-15 势加透博（北京）科技有限公司 Ladder-shaped gap structure for gas compressor of aircraft engine
CN102927052B (en) * 2012-11-12 2015-03-04 西安交通大学 Processing method for radial slot cartridge receiver
US9243511B2 (en) 2014-02-25 2016-01-26 Siemens Aktiengesellschaft Turbine abradable layer with zig zag groove pattern
WO2015130522A1 (en) * 2014-02-25 2015-09-03 Siemens Aktiengesellschaft Turbine ring segment with abradable surface having ridges with inclined lateral walls
CN104279181B (en) * 2014-09-26 2017-06-06 清华大学 Centrifugal pump impeller
CN104389800B (en) * 2014-10-15 2017-04-12 陈远进 Mixed flow air compressor of aero-engine
CN105134659B (en) * 2015-08-25 2017-10-31 浙江理工大学 Based on the centrifugal compressor bend improved method that energy gradient is theoretical
CN106438475A (en) * 2016-09-18 2017-02-22 江苏大学 Diagonal flow pump inhibiting blade tip leakage flow
CN109882448B (en) * 2019-02-25 2020-06-26 江苏大学 A mixed-flow pump runner chamber with a circular arc-shaped pumping groove
CN113217458B (en) * 2021-05-28 2022-09-02 宁波方太厨具有限公司 Impeller, fan system applying impeller and range hood
DE102023127949A1 (en) * 2023-10-12 2025-04-17 Oase Gmbh flow pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714406A (en) * 1983-09-14 1987-12-22 Rolls-Royce Plc Turbines
US4781530A (en) * 1986-07-28 1988-11-01 Cummins Engine Company, Inc. Compressor range improvement means
US5137419A (en) * 1984-06-19 1992-08-11 Rolls-Royce Plc Axial flow compressor surge margin improvement
US5466118A (en) * 1993-03-04 1995-11-14 Abb Management Ltd. Centrifugal compressor with a flow-stabilizing casing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212585A (en) 1978-01-20 1980-07-15 Northern Research And Engineering Corporation Centrifugal compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714406A (en) * 1983-09-14 1987-12-22 Rolls-Royce Plc Turbines
US5137419A (en) * 1984-06-19 1992-08-11 Rolls-Royce Plc Axial flow compressor surge margin improvement
US4781530A (en) * 1986-07-28 1988-11-01 Cummins Engine Company, Inc. Compressor range improvement means
US5466118A (en) * 1993-03-04 1995-11-14 Abb Management Ltd. Centrifugal compressor with a flow-stabilizing casing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108050074A (en) * 2017-11-09 2018-05-18 西安理工大学 A kind of import Taper Pipe that can improve axial-flow pump stability

Also Published As

Publication number Publication date
EP1069315A2 (en) 2001-01-17
CN1281953A (en) 2001-01-31
DE60036336D1 (en) 2007-10-25
DE60036336T2 (en) 2008-06-12
CN1221741C (en) 2005-10-05
EP1069315B1 (en) 2007-09-12
ATE373175T1 (en) 2007-09-15

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