DE69929749D1 - Schraubenpumpe - Google Patents

Schraubenpumpe

Info

Publication number: DE69929749D1
Authority: DE; Germany
Prior art keywords: screw pump; pump; screw
Prior art date: 1998-06-17
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.): Expired - Fee Related

Application number

DE69929749T

Other languages

English (en)

Other versions

DE69929749T2 (de

Inventor

Nigel Paul Schofield

Michael Henry North

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.)

Edwards Ltd

Original Assignee

BOC Group 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.)

1998-06-17

Filing date

1999-06-15

Publication date

2006-04-20

1998-06-17 Priority claimed from GBGB9813048.7A external-priority patent/GB9813048D0/en

1998-07-07 Priority claimed from GBGB9814659.0A external-priority patent/GB9814659D0/en

1999-06-15 Application filed by BOC Group Ltd filed Critical BOC Group Ltd

2006-04-20 Application granted granted Critical

2006-04-20 Publication of DE69929749D1 publication Critical patent/DE69929749D1/de

2006-08-24 Publication of DE69929749T2 publication Critical patent/DE69929749T2/de

2019-06-16 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/02—Arrangements of bearings
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/084—Toothed wheels
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0078—Fixing rotors on shafts, e.g. by clamping together hub and shaft
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2250/00—Geometry
- F04C2250/20—Geometry of the rotor
- F04C2250/201—Geometry of the rotor conical shape

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Applications Or Details Of Rotary Compressors (AREA)
Details And Applications Of Rotary Liquid Pumps (AREA)

DE69929749T 1998-06-17 1999-06-15 Schraubenpumpe Expired - Fee Related DE69929749T2 (de)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
GBGB9813048.7A GB9813048D0 (en)	1998-06-17	1998-06-17	Improvements in vacuum pumps
GB9813048		1998-06-17
GBGB9814659.0A GB9814659D0 (en)	1998-07-07	1998-07-07	Improvements in screw pumps
GB9814659		1998-07-07

Publications (2)

Publication Number	Publication Date
DE69929749D1 true DE69929749D1 (de)	2006-04-20
DE69929749T2 DE69929749T2 (de)	2006-08-24

Family

ID=26313883

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DE69928172T Expired - Lifetime DE69928172T2 (de)	1998-06-17	1999-06-15	Vacuumpumpe
DE69929749T Expired - Fee Related DE69929749T2 (de)	1998-06-17	1999-06-15	Schraubenpumpe

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
DE69928172T Expired - Lifetime DE69928172T2 (de)	1998-06-17	1999-06-15	Vacuumpumpe

Country Status (4)

Country	Link
US (2)	US6200116B1 (de)
EP (3)	EP0965756B1 (de)
JP (3)	JP4388167B2 (de)
DE (2)	DE69928172T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19963173B4 (de) *	1999-12-27	2011-05-19	Leybold Vakuum Gmbh	Schraubenvakuumpumpe
GB0004404D0 (en) *	2000-02-24	2000-04-12	Boc Group Plc	Improvements in vacuum pumps
JP4558349B2 (ja) *	2004-03-02	2010-10-06	財団法人国際科学振興財団	真空ポンプ
EP1859163A4 (de) *	2005-03-10	2014-11-26	Alan Notis	Druckversiegelte konische schraubenpumpe/motor
US20070020115A1 (en) *	2005-07-01	2007-01-25	The Boc Group, Inc.	Integrated pump apparatus for semiconductor processing
US20070081893A1 (en) *	2005-10-06	2007-04-12	The Boc Group, Inc.	Pump apparatus for semiconductor processing
GB0525378D0 (en)	2005-12-13	2006-01-18	Boc Group Plc	Screw Pump
JP2007170341A (ja) *	2005-12-26	2007-07-05	Toyota Industries Corp	スクリュー式流体機械
TWI438342B (zh)	2006-07-28	2014-05-21	Lot Vacuum Co Ltd	具有魯式與螺旋轉子之複合型乾式真空幫浦
DE102010014884A1 (de) *	2010-04-14	2011-10-20	Baratti Engineering Gmbh	Vakuumpumpe
WO2016157450A1 (ja) *	2015-03-31	2016-10-06	株式会社日立産機システム	ガス圧縮機
FR3065040B1 (fr) *	2017-04-07	2019-06-21	Pfeiffer Vacuum	Groupe de pompage et utilisation

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2511878A (en) *		1950-06-20		Rathman
US678570A (en) *	1900-10-22	1901-07-16	William Anthony Jones	Motor.
US1191423A (en) *	1913-01-15	1916-07-18	H & S Pump Company	Pump.
GB384355A (en) *	1931-08-05	1932-12-08	Frederick Charles Greenfield	Improvements in and relating to rotary machines for the compression and propulsion of
US2079083A (en) *	1935-03-29	1937-05-04	Imo Industri Ab	Fluid meter
NL282778A (de) *	1960-12-15
FR1309885A (fr) *	1960-12-15	1962-11-23	Ishikawajima Harima Heavy Ind	Machine rotative pour la compression de gaz ou agissant inversement comme moteur
US3180559A (en) *	1962-04-11	1965-04-27	John R Boyd	Mechanical vacuum pump
CH613258A5 (de) *	1975-09-24	1979-09-14	Suter Fa Alois
US4405286A (en) *	1982-01-21	1983-09-20	The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration	Actively suspended counter-rotating machine
JPS59208077A (ja) *	1983-05-11	1984-11-26	Hitachi Ltd	テ−パ状スクリユ−ロ−タの製造方法
JPH06100082B2 (ja) *	1986-10-24	1994-12-12	株式会社日立製作所	スクリユ流体機械
JP2619468B2 (ja) *	1988-04-06	1997-06-11	株式会社日立製作所	無給油式スクリュー流体機械
JPH01267384A (ja) *	1988-04-15	1989-10-25	Hitachi Ltd	勾配歯を有するスクリューロータ
JPH08144977A (ja) *	1994-11-24	1996-06-04	Kashiyama Kogyo Kk	複合ドライ真空ポンプ
DE19522555A1 (de) *	1995-06-21	1997-01-02	Sihi Ind Consult Gmbh	Rotationskolbenverdichter mit zwei Rotoren
US6019586A (en) *	1998-01-20	2000-02-01	Sunny King Machinery Co., Ltd.	Gradationally contracted screw compression equipment

1999
- 1999-06-15 EP EP99304667A patent/EP0965756B1/de not_active Expired - Lifetime
- 1999-06-15 EP EP99304668A patent/EP0965757A3/de not_active Withdrawn
- 1999-06-15 DE DE69928172T patent/DE69928172T2/de not_active Expired - Lifetime
- 1999-06-15 EP EP99304669A patent/EP0965758B1/de not_active Expired - Lifetime
- 1999-06-15 DE DE69929749T patent/DE69929749T2/de not_active Expired - Fee Related
- 1999-06-16 US US09/334,236 patent/US6200116B1/en not_active Expired - Lifetime
- 1999-06-16 JP JP20661299A patent/JP4388167B2/ja not_active Expired - Lifetime
- 1999-06-16 JP JP11206610A patent/JP2000073976A/ja active Pending
- 1999-06-16 US US09/334,323 patent/US6217305B1/en not_active Expired - Lifetime
- 1999-06-16 JP JP11206611A patent/JP2000064976A/ja active Pending

Also Published As

Publication number	Publication date
DE69929749T2 (de)	2006-08-24
JP2000064975A (ja)	2000-03-03
EP0965757A2 (de)	1999-12-22
EP0965756B1 (de)	2006-02-08
EP0965756A2 (de)	1999-12-22
JP2000064976A (ja)	2000-03-03
EP0965757A3 (de)	2001-01-31
EP0965758A3 (de)	2001-01-31
DE69928172D1 (de)	2005-12-15
US6217305B1 (en)	2001-04-17
EP0965758A2 (de)	1999-12-22
JP4388167B2 (ja)	2009-12-24
JP2000073976A (ja)	2000-03-07
US6200116B1 (en)	2001-03-13
EP0965758B1 (de)	2005-11-09
DE69928172T2 (de)	2006-07-13
EP0965756A3 (de)	2001-01-31

Publication	Publication Date	Title
NO992199L (no)	1999-11-15	Gjenget forbindelse
DE69921466D1 (de)	2004-12-02	Unverlierbare schraube
DE59913436D1 (de)	2006-06-22	Schraubenverdichter
ID26896A (id)	2001-02-15	Protektor berulir
DE69729108D1 (de)	2004-06-17	Exzenter-schneckenpumpe
NO984536L (no)	1999-03-30	Skruforbindelse
DE69911126D1 (de)	2003-10-16	Schraube
DE69620082D1 (de)	2002-05-02	Schraubenpumpe
DE59811767D1 (de)	2004-09-09	Pumpeneinheit
DE69911695D1 (de)	2003-11-06	Schraubenverdichter
NO20021924L (no)	2002-07-03	Skrutang
NO993597D0 (no)	1999-07-23	Broennpumpeenhet
DE69812722T2 (de)	2004-01-29	Halbaxialpumpe
DE69914122D1 (de)	2004-02-19	Schraubenverdichter
DE50014402D1 (de)	2007-07-26	Schraubanker
DE59904464D1 (de)	2003-04-10	Doppelpumpen-aggregat
DE69929749D1 (de)	2006-04-20	Schraubenpumpe
DE69920086D1 (de)	2004-10-21	Kompakte dichtungslose Schraubenspindelpumpe
ES1040664Y (es)	1999-10-01	Tornillo.
DE59907560D1 (de)	2003-12-04	Motor-pumpen-aggregat
DK0997644T3 (da)	2003-05-19	Gerotormotor
ATE240459T1 (de)	2003-05-15	Exzeuterschneckenpumpe
DE60030057D1 (de)	2006-09-28	Schraubenpumpe
DE59904770D1 (de)	2003-04-30	Autobetonpumpe
DE69930372D1 (de)	2006-05-11	Spiralpumpe

Legal Events

Date	Code	Title	Description
2007-03-08	8364	No opposition during term of opposition
2008-05-08	8327	Change in the person/name/address of the patent owner	Owner name: EDWARDS LTD., CRAWLEY, WEST SUSSEX, GB
2010-04-22	8339	Ceased/non-payment of the annual fee