EP1957798A1 - Compresseur à vis - Google Patents

Compresseur à vis

Info

Publication number
EP1957798A1
EP1957798A1 EP06762002A EP06762002A EP1957798A1 EP 1957798 A1 EP1957798 A1 EP 1957798A1 EP 06762002 A EP06762002 A EP 06762002A EP 06762002 A EP06762002 A EP 06762002A EP 1957798 A1 EP1957798 A1 EP 1957798A1
Authority
EP
European Patent Office
Prior art keywords
rotor
profile
rotors
ribs
screw 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
EP06762002A
Other languages
German (de)
English (en)
Other versions
EP1957798B1 (fr
Inventor
Carsten Achtelik
Dieter HÜTTERMANN
Michael Besseling
Norbert Henning
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.)
GHH Rand Schraubenkompressoren GmbH
Original Assignee
GHH Rand Schraubenkompressoren GmbH
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 GHH Rand Schraubenkompressoren GmbH filed Critical GHH Rand Schraubenkompressoren GmbH
Publication of EP1957798A1 publication Critical patent/EP1957798A1/fr
Application granted granted Critical
Publication of EP1957798B1 publication Critical patent/EP1957798B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • 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
    • F04C2220/00—Application
    • F04C2220/40—Pumps with means for venting areas other than the working chamber, e.g. bearings, gear chambers, shaft seals

Definitions

  • the invention relates to a screw compressor with two screw rotors which are rotatably mounted axially parallel in a rotor housing, each of which has a profile section with helically running ribs and grooves.
  • the rotors intermesh with their ribs and grooves in a meshing and sealing manner, and in operation gas volumes enclosed between them and the rotor housing are conveyed and compressed.
  • the present invention aims to provide a screw compressor which is suitable for compressing gas to very high pressures, typically in the range from 30 to 50 bar, and which is in particular the last stage of a multi-stage, in particular three-stage Compressor unit can be operated.
  • the rotors are exposed to strong transverse axial forces due to the gas volume enclosed between them and the housing under high pressure, which act in the sense of a deflection of the rotors. This can impair the seal between the rotors and thus lead to a loss in efficiency.
  • the object of the invention is therefore to provide a screw compressor which is particularly suitable for operation at high compression pressures.
  • Figure 1 is a partially sectioned view of a screw compressor according to the invention.
  • FIG. 2 shows a perspective illustration of the rotors of the screw compressor according to FIG. 1.
  • Figure 3 shows the rotor profile of the two rotors in the perpendicular cross section.
  • the screw compressor shown as an exemplary embodiment in FIG. 1 has a rotor housing 1, shown in section, in which two rotors 3 and 5 are rotatably mounted in parallel axes.
  • the axes of rotation of the rotors 3, 5 lie in a common vertical plane, which is also the sectional plane for the representation of the rotor housing 1.
  • Each rotor has a profile section 7 or 9, which has a profile with helically extending ribs or grooves, the ribs and grooves of the two profile sections 7, 9 intermeshing.
  • Shaft journals 7a, 7b, 9a, 9b adjoin the profile sections 7, 9, and sealing rings 11 cooperate with their circumferential surface in order to seal the rotor in the rotor housing 1.
  • the shaft journals 7a, 7b, 9a, 9b are also rotatably supported in the rotor housing 1 by bearings 13, 15. - J -
  • the upper rotor 3 in FIG. 1 is the main rotor and has at its left end in FIG. 1 an extension 7c of its shaft journal which is intended to receive a drive gear (not shown) which meshes with a corresponding gear of a drive gear (not shown) to drive the rotor 3 to rotate.
  • the two rotors 3, 5 have two meshing gears 17, 19 which form a synchronizing gear which rotates from the upper rotor 3 to the lower rotor 5, which is the secondary rotor, in the desired speed ratio transmits and ensures that the profile sections 7, 9 of the rotors mesh without contact.
  • the screw compressor described is preferably dry-running, ie no oil is supplied to the compressor chamber for lubrication, cooling or sealing.
  • the rotor profiles engage in a contact-free and yet sealing manner. This is advantageous for all applications in which it is important that the compressed gas is completely free of oil. Oil is only outside the compressor room, i.e. H. outside the area sealed by the seals 1 1, e.g. B. for lubricating the (not shown) drive gear, the bearings 13, 15 and the synchronous gear 17, 19 supplied.
  • the two rotors 3, 5 of the screw compressor of Figure 1 are shown separately in perspective. It can be seen from FIG. 2 that the rotor 3, which is the main rotor, has a profile section 7, the profile of which is formed by six helically running ribs T.
  • the sum of the numbers of the helical ribs 7 ', 9' of the two rotors, i. H. the sum of the "number of teeth" is 14.
  • FIG. 2 Also shown in FIG. 2 are the areas 7a, 7b, 9a, 9b of the shaft journals with a diameter (D, D ') which adjoin the profile section 7 or 9 of each of the rotors 3, 5 on both sides and which have a diameter (D, D') which is more than half the outer diameter of the respective profile section.
  • Figure 3 shows the profile sections 7, 9 of the two rotors in the axial section.
  • the profile 7 of the main rotor has six helical ribs T, which are separated from one another by grooves 7 ".
  • the top surfaces of the ribs T lie on the outer enveloping circle Ka of the profile with the diameter Da.
  • the bottom surfaces of the grooves 7" lie on the inner circle Ki with the diameter Di.
  • the radial distance between the circles Ka and Ki is called the rib height or tooth height H. This is not larger, preferably less than 0.15 times the diameter Da of the outer circle Ka. The same applies to the eight ribs 9 'and the grooves 9 "separating them of the lower rotor (secondary rotor) 9, ie the tooth height is also here H not greater than 0.15 times the outer profile diameter Da.
  • the suction space 10 which is formed in the rotor housing 1 adjacent to the left end of the profile sections 7, 9 in FIG. 1, is supplied with the gas to be compressed, in particular air, preferably from one or more upstream Compressor stages (not shown) is already precompressed to an intermediate pressure, for example to a pressure in the range from 10 to 15 bar, preferably 12 bar.
  • This precompressed gas is conveyed through the profile sections 7, 9 of the two rotors 3, 5 to the right in FIG. 1 to an outlet (not shown) and is compressed to a final pressure which is preferably in the range from 30 to 50 bar, in particular at about Is 40 bar.
  • the rotors of the screw compressor are designed to be highly insensitive to the transverse axial forces generated by the compressed gas at these high pressures.

Abstract

L'invention concerne un compresseur à vis présentant deux rotors (7, 9) pourvus de nervures (7', 9') et de rainures hélicoïdales s'engrenant de façon étanche. La somme des nombres de nervures des deux rotors s'élève au moins à 14 et la hauteur (H) des nervures n'excède pas 0,15 fois le diamètre extérieur (Da) du profil de rotor (7) ou (9). Les tourillons des rotors présentent un diamètre qui n'est pas inférieur à la moitié du diamètre extérieur (Da) du profil de rotor.
EP06762002A 2005-12-08 2006-06-09 Compresseur à vis Active EP1957798B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005058698 2005-12-08
PCT/EP2006/005556 WO2007065484A1 (fr) 2005-12-08 2006-06-09 Compresseur à vis

Publications (2)

Publication Number Publication Date
EP1957798A1 true EP1957798A1 (fr) 2008-08-20
EP1957798B1 EP1957798B1 (fr) 2011-02-09

Family

ID=36763690

Family Applications (4)

Application Number Title Priority Date Filing Date
EP06762002A Active EP1957798B1 (fr) 2005-12-08 2006-06-09 Compresseur à vis
EP06754261.3A Active EP1979618B1 (fr) 2005-12-08 2006-06-09 Groupe de compresseurs à vis à plusieurs étages
EP06754260.5A Active EP1957797B1 (fr) 2005-12-08 2006-06-09 Compresseur à vis pourvu d'une chemise de refroidissement
EP06754262A Withdrawn EP1957799A1 (fr) 2005-12-08 2006-06-09 Compresseur à vis

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP06754261.3A Active EP1979618B1 (fr) 2005-12-08 2006-06-09 Groupe de compresseurs à vis à plusieurs étages
EP06754260.5A Active EP1957797B1 (fr) 2005-12-08 2006-06-09 Compresseur à vis pourvu d'une chemise de refroidissement
EP06754262A Withdrawn EP1957799A1 (fr) 2005-12-08 2006-06-09 Compresseur à vis

Country Status (8)

Country Link
US (4) US7713039B2 (fr)
EP (4) EP1957798B1 (fr)
CN (2) CN101321954B (fr)
AT (1) ATE498071T1 (fr)
DE (1) DE502006008894D1 (fr)
ES (1) ES2359015T3 (fr)
HK (1) HK1127111A1 (fr)
WO (4) WO2007065484A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7669586B2 (en) * 2007-05-01 2010-03-02 Gm Global Technology Operations, Inc. Vented gear drive assembly for a supercharger
US20090142212A1 (en) * 2007-12-03 2009-06-04 Paul Xiubao Huang Rotary blower with noise abatement jacket enclosure
CN101498304B (zh) * 2009-03-11 2011-06-15 宁波鲍斯能源装备股份有限公司 一种煤层气双螺杆压缩机组
DE102009019220B4 (de) * 2009-04-30 2013-04-11 Leistritz Pumpen Gmbh Schraubenspindelpumpe
US8339714B2 (en) 2010-10-13 2012-12-25 Olympus Imaging Corp. Zoom lens and imaging apparatus incorporating the same
JP5777379B2 (ja) * 2011-04-05 2015-09-09 株式会社日立産機システム 空気圧縮機
CN102322421B (zh) * 2011-08-29 2014-03-12 骆贻红 车载无油螺杆空气压缩机及其油路自循环冷却方法
CN103527481B (zh) * 2013-10-30 2015-12-16 上海齐耀螺杆机械有限公司 一种螺杆压缩机
US9951761B2 (en) 2014-01-16 2018-04-24 Ingersoll-Rand Company Aerodynamic pressure pulsation dampener
JP6228868B2 (ja) * 2014-03-10 2017-11-08 株式会社神戸製鋼所 スクリュ圧縮機
US9828995B2 (en) 2014-10-23 2017-11-28 Ghh Rand Schraubenkompressoren Gmbh Compressor and oil drain system
US9803639B2 (en) * 2014-12-19 2017-10-31 Ghh-Rand Schraubenkompressoren Gmbh Sectional sealing system for rotary screw compressor
DE102014019117B4 (de) * 2014-12-19 2022-02-24 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Druckluftversorgungseinrichtung für Fahrzeug-Druckluftanlagen mit wenigstens einem Gehäuse aus Kunststoff
WO2016201173A1 (fr) * 2015-06-11 2016-12-15 Eaton Corporation Compresseur de suralimentation doté de pignons de synchronisation d'angle d'hélice à pas constant
CN105386972B (zh) * 2015-12-09 2017-05-17 合肥工业大学 一种具有动密封结构的螺杆真空泵
US10718334B2 (en) 2015-12-21 2020-07-21 Ingersoll-Rand Industrial U.S., Inc. Compressor with ribbed cooling jacket
US10451061B2 (en) 2016-05-06 2019-10-22 Ingersoll-Rand Company Compressor having non-contact and contact seals
CN108071586A (zh) * 2016-11-14 2018-05-25 上海汉钟精机股份有限公司 齿型转子组
TWI624596B (zh) * 2017-03-15 2018-05-21 亞台富士精機股份有限公司 可被遠端監控的幫浦機台及幫浦監控系統
EP3382203B1 (fr) 2017-03-30 2024-05-15 Roper Pump Company LLC Pompe à cavité progressive avec gaine de chauffage intégrée
CN108644117A (zh) * 2018-07-25 2018-10-12 宁波鲍斯能源装备股份有限公司 一种三级螺杆传动结构及其螺杆压缩机
CN109139456A (zh) * 2018-09-20 2019-01-04 宁波鲍斯能源装备股份有限公司 一种双级喷水螺杆主机
CN110425133A (zh) * 2019-07-26 2019-11-08 宁波鲍斯能源装备股份有限公司 螺杆涡旋水平式三级压缩机

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US562843A (en) * 1896-06-30 morse
US883911A (en) * 1907-07-09 1908-04-07 Harry Pierce Rotary engine.
US2575154A (en) * 1950-12-18 1951-11-13 Hydro Power Inc Rotary pump
US2849988A (en) * 1954-10-26 1958-09-02 Svenska Rotor Maskiner Ab Rotary devices and casing structures therefor
US3138320A (en) 1959-01-15 1964-06-23 Svenska Roytor Maskiner Aktieb Fluid seal for compressor
DE1147443B (de) 1960-07-11 1963-04-18 Gewerk Eisenhuette Westfalia Druckluftzahnradmotor
US3184155A (en) 1963-04-17 1965-05-18 Cooper Bessemer Corp Motor compressor unit
US3407996A (en) 1966-06-22 1968-10-29 Atlas Copco Ab Screw compressor units
GB1335025A (en) * 1969-12-31 1973-10-24 Howden Godfrey Ltd Method of and apparatus for refrigeration
US4076468A (en) 1970-07-09 1978-02-28 Svenska Rotor Maskiner Aktiebolag Multi-stage screw compressor interconnected via communication channel in common end plate
US3783710A (en) * 1972-11-16 1974-01-08 Twin Disc Inc Power transmitting drive apparatus
US4068984A (en) * 1974-12-03 1978-01-17 H & H Licensing Corporation Multi-stage screw-compressor with different tooth profiles
US3986801A (en) * 1975-05-06 1976-10-19 Frick Company Screw compressor
GB1570512A (en) 1976-09-04 1980-07-02 Howden Compressors Ltd Meshing-screw gas-compressing apparatus
JPS5951190A (ja) 1982-09-17 1984-03-24 Hitachi Ltd オイルフリ−スクリユ−圧縮機の油切り装置
JPS614889A (ja) * 1984-06-20 1986-01-10 Hitachi Ltd 多段式スクリユ−圧縮機
US4643654A (en) * 1985-09-12 1987-02-17 American Standard Inc. Screw rotor profile and method for generating
JP2511870B2 (ja) 1986-03-20 1996-07-03 株式会社日立製作所 スクリユ−真空ポンプ装置
US4781553A (en) * 1987-07-24 1988-11-01 Kabushiki Kaisha Kobe Seiko Sho Screw vacuum pump with lubricated bearings and a plurality of shaft sealing means
JP2515831B2 (ja) 1987-12-18 1996-07-10 株式会社日立製作所 スクリユ―真空ポンプ
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
US4938672A (en) * 1989-05-19 1990-07-03 Excet Corporation Screw rotor lobe profile for simplified screw rotor machine capacity control
JPH03267593A (ja) * 1990-03-16 1991-11-28 Hitachi Koki Co Ltd ねじ溝真空ポンプ
JPH05231362A (ja) * 1992-02-25 1993-09-07 Hitachi Ltd スクリュ流体機械
JPH05231361A (ja) 1992-02-26 1993-09-07 Hitachi Ltd オイルフリースクリュー圧縮機の診断方法およびその装置
JPH0658278A (ja) * 1992-08-05 1994-03-01 Ebara Corp 多段スクリュー式真空ポンプ
JP3254457B2 (ja) * 1992-09-18 2002-02-04 株式会社日立製作所 無給油式スクリュー圧縮機のロータ形成方法およびそのロータを用いた無給油式スクリュー圧縮機
DE4241141A1 (de) 1992-12-07 1994-06-09 Bhs Voith Getriebetechnik Gmbh Verdichteranlage mit einem im Antriebsstrang zwischen einer Antriebseinheit und einem Verdichterbereich der Anlage eingeschalteten Zahnradgetriebe
US6217304B1 (en) * 1995-10-30 2001-04-17 David N. Shaw Multi-rotor helical-screw compressor
JP3493850B2 (ja) * 1995-11-22 2004-02-03 石川島播磨重工業株式会社 機械駆動式過給機のシール構造
US5988994A (en) 1997-10-21 1999-11-23 Global Cooling Manufacturing Company Angularly oscillating, variable displacement compressor
JPH11223191A (ja) 1998-02-04 1999-08-17 Hitachi Ltd 多段スクリューコンプレッサ
DE29807796U1 (de) * 1998-04-30 1999-09-09 Ghh Rand Schraubenkompressoren Dichtungsanordnung für einen Wellenzapfen eines trockenlaufenden Rotationsschraubenverdichters
DE19822283A1 (de) * 1998-05-18 1999-11-25 Sgi Prozess Technik Gmbh Drehzahnverdichter und Verfahren zum Betrieb eines solchen
DE29904409U1 (de) * 1999-03-10 2000-07-20 Ghh Rand Schraubenkompressoren Schraubenkompressor
DE29922878U1 (de) 1999-12-28 2001-05-10 Ghh Rand Schraubenkompressoren Zweistufiger trockenlaufender Schraubenkompressor
JP4003378B2 (ja) * 2000-06-30 2007-11-07 株式会社日立プラントテクノロジー スクリュー圧縮機
US6478560B1 (en) * 2000-07-14 2002-11-12 Ingersoll-Rand Company Parallel module rotary screw compressor and method
DE10040020A1 (de) * 2000-08-16 2002-03-07 Bitzer Kuehlmaschinenbau Gmbh Schraubenverdichter
DE20110360U1 (de) * 2001-06-22 2002-10-31 Ghh Rand Schraubenkompressoren Zweistufiger Schraubenkompressor
CN1399074A (zh) * 2001-07-27 2003-02-26 大晃机械工业株式会社 干式真空泵
US6981855B2 (en) * 2002-09-30 2006-01-03 Sandvik Ab Drilling rig having a compact compressor/pump assembly
DE20302989U1 (de) * 2003-02-24 2004-07-08 Werner Rietschle Gmbh + Co. Kg Drehkolbenpumpe
TW200506217A (en) * 2003-03-19 2005-02-16 Ebara Corp Positive-displacement vacuum pump
US7232297B2 (en) * 2003-05-08 2007-06-19 Automotive Motion Technology Limited Screw pump
US20050089414A1 (en) * 2003-10-28 2005-04-28 Svenska Rotor Maskiner Ab Screw rotor and screw rotor compressor
CN2688936Y (zh) * 2004-03-15 2005-03-30 朱祚睿 同轴梯型多节螺杆式空气压缩机
US8342829B2 (en) * 2005-12-08 2013-01-01 Ghh Rand Schraubenkompressoren Gmbh Three-stage screw compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007065484A1 *

Also Published As

Publication number Publication date
DE502006008894D1 (de) 2011-03-24
EP1957798B1 (fr) 2011-02-09
US7690901B2 (en) 2010-04-06
WO2007065487A1 (fr) 2007-06-14
EP1957799A1 (fr) 2008-08-20
CN101321955A (zh) 2008-12-10
CN101321954B (zh) 2012-06-13
US20080286129A1 (en) 2008-11-20
US9091268B2 (en) 2015-07-28
EP1957797A1 (fr) 2008-08-20
HK1127111A1 (en) 2009-09-18
CN101321954A (zh) 2008-12-10
WO2007065484A1 (fr) 2007-06-14
US20130011285A1 (en) 2013-01-10
WO2007065485A1 (fr) 2007-06-14
US20080286138A1 (en) 2008-11-20
US7713039B2 (en) 2010-05-11
ES2359015T3 (es) 2011-05-17
ATE498071T1 (de) 2011-02-15
EP1979618B1 (fr) 2016-04-27
WO2007065486A1 (fr) 2007-06-14
EP1979618A1 (fr) 2008-10-15
EP1957797B1 (fr) 2016-09-28
US20090004036A1 (en) 2009-01-01

Similar Documents

Publication Publication Date Title
EP1957798B1 (fr) Compresseur à vis
EP3507496B1 (fr) Pompe à vide à compression sèche
DE202009003980U1 (de) Vakuumpumpe
DE1403541A1 (de) Umlaufmaschine,insbesondere Schraubenverdichter fuer Gase
WO2016034485A2 (fr) Pompe à griffes
EP2745015B1 (fr) Pompe roots
EP3134649A2 (fr) Paire de rotors pour bloc de compresseur d'une visseuse
DE102007038966B4 (de) Mehrstufige Drehkolbenvakuumpumpe bzw. - verdichter
DE102005003646A1 (de) Schneckenkompressor
DE10040020A1 (de) Schraubenverdichter
DE4134965A1 (de) Spiralverdichter mit modifizierter kopfnut
DE2134241C3 (de) Zweistufige außenachsige Rotationskolbenmaschine
EP3961035A1 (fr) Procédé et pompe à broche hélicoïdale destinés au pompage d'un mélange gaz-liquide
DE4403649A1 (de) Lagerung und Antrieb der Rotoren eines Schraubenrotorverdichters
DE10129341A1 (de) Profilkontur einer Spindelpumpe
DE102005022470B4 (de) Rotorpaar für Schraubenverdichter
DE20302990U1 (de) Drehkolbenpumpe
DE19713907A1 (de) Verdrängermaschine
EP3737863A1 (fr) Compresseur
EP2613052B1 (fr) Compresseur à pistons rotatifs ou pompe à pistons rotatifs
EP1571340B1 (fr) Pompe à vide à déplacement positif avec compression interne
DE60223388T2 (de) Verdrängerpumpe mit gegendruckverhinderung
DE1840511U (de) Vakuumpumpe mit auf einer achse exzentrisch angeordneten oelgedichteten kolben.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071213

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502006008894

Country of ref document: DE

Date of ref document: 20110324

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502006008894

Country of ref document: DE

Effective date: 20110324

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2359015

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20110517

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110209

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110609

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110510

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110509

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20111110

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502006008894

Country of ref document: DE

Effective date: 20111110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110630

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 498071

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110209

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150609

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20160412

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502006008894

Country of ref document: DE

Representative=s name: MURGITROYD & COMPANY, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502006008894

Country of ref document: DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502006008894

Country of ref document: DE

Representative=s name: HASELTINE LAKE LLP, DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: INGESOLL-RAND INTERNATIONAL LIMITED

Effective date: 20180110

REG Reference to a national code

Ref country code: BE

Ref legal event code: PD

Owner name: INGERSOLL-RAND INTERNATIONAL LIMITED; IE

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CESSION; FORMER OWNER NAME: GHH-RAND SCHRAUBENKOMPRESSOREN GMBH

Effective date: 20180109

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20180208 AND 20180214

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502006008894

Country of ref document: DE

Representative=s name: MURGITROYD GERMANY PATENTANWALTSGESELLSCHAFT M, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502006008894

Country of ref document: DE

Representative=s name: MURGITROYD & COMPANY, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502006008894

Country of ref document: DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008894

Country of ref document: DE

Owner name: INGERSOLL-RAND INTERNATIONAL LTD., IE

Free format text: FORMER OWNER: GHH-RAND SCHRAUBENKOMPRESSOREN GMBH, 46145 OBERHAUSEN, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: INGERSOLL-RAND INTERNATIONAL LIMITED, IE

Effective date: 20180406

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20200520

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20200525

Year of fee payment: 15

Ref country code: IT

Payment date: 20200519

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20200701

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502006008894

Country of ref document: DE

Representative=s name: MURGITROYD GERMANY PATENTANWALTSGESELLSCHAFT M, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502006008894

Country of ref document: DE

Representative=s name: MURGITROYD & COMPANY, DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210610

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230626

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20230626

Year of fee payment: 18