EP3475574A1 - Pompe à gaz à palettes fonctionnant à sec - Google Patents

Pompe à gaz à palettes fonctionnant à sec

Info

Publication number
EP3475574A1
EP3475574A1 EP17713583.7A EP17713583A EP3475574A1 EP 3475574 A1 EP3475574 A1 EP 3475574A1 EP 17713583 A EP17713583 A EP 17713583A EP 3475574 A1 EP3475574 A1 EP 3475574A1
Authority
EP
European Patent Office
Prior art keywords
fluid outlet
pump
outlet opening
dry
gas pump
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
EP17713583.7A
Other languages
German (de)
English (en)
Other versions
EP3475574B1 (fr
Inventor
Tobias GRÜNE
Nabil Salim AL-HASAN
Steffen Schnurr
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.)
Pierburg Pump Technology GmbH
Original Assignee
Pierburg Pump Technology 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 Pierburg Pump Technology GmbH filed Critical Pierburg Pump Technology GmbH
Publication of EP3475574A1 publication Critical patent/EP3475574A1/fr
Application granted granted Critical
Publication of EP3475574B1 publication Critical patent/EP3475574B1/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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
    • 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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum
    • F04C2220/12—Dry running
    • 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

Definitions

  • the invention relates to a dry running vane gas pump.
  • Such vane-type gas pumps are known from the prior art and are usually used in motor vehicles as so-called vacuum pumps in combination with a brake booster.
  • the vane pump delivers the time required for the operation of the brake booster negative pressure, which is absolute 100 mbar or less in the rule.
  • the vane-cell gas pumps known from the prior art are usually dry-running or oil-lubricated vane-cell gas pumps, wherein in the case of dry-running gas pumps, no lubricant is conducted into the pumping chamber.
  • oil-lubricated vane pumps the air exiting the pumping chamber is mixed with lubricant, and prior to disposal of this air-lubricant mixture, the air-lubricant mixture must be laboriously separated into its components.
  • By omitting the lubricant the contamination of the air leaving the pumping chamber can be avoided.
  • the omission of the lubricant but leads to increased wear of the relatively moving components, in particular the slide elements. The wear is usually reduced to a minimum by selective choice of suitable material pairings of the abutting and mutually relatively moving components.
  • Such a dry-running vane-cell gas pump is disclosed in EP 2 568 180 A1.
  • the vane pump has a pump housing on, which forms a pumping chamber.
  • a pump rotor is arranged, which has five radially displaceable slide elements.
  • the pump rotor is rotatably connected to an electric motor and is driven by this.
  • the slide elements move due to the force acting on the slide elements centrifugal force such that they rest with their head each on a peripheral wall of the pumping chamber, each two adjacent slide elements together with the pump rotor and the pump housing each define a Pumpfach.
  • a fluid inlet opening and two fluid outlet openings are formed, wherein the fluid inlet opening and the fluid outlet openings are associated with the pumping chamber. Both fluid outlet openings each have a check valve, so that the fluid outlet openings are released only from a prevailing in the Pumpfach predefined overpressure.
  • the invention is therefore based on the object to avoid the above drawback.
  • the dry-running gas pump has a pump housing, which limits a pumping chamber.
  • a pump rotor is arranged, which is driven either electrically by an electric motor or mechanically by an internal combustion engine.
  • the pump rotor is arranged eccentrically in the pumping chamber and abuts in a sealing sector on the peripheral wall of the pumping chamber, whereby a sickle-shaped working space is created.
  • the pumping chamber is divided into function in an inlet, an outlet and a sealing sector.
  • a fluid inlet opening is arranged, which is fluidically connected, for example, with a vacuum chamber of a brake booster.
  • a first fluid outlet opening and a second fluid outlet opening are arranged, wherein the pumping chamber can be connected to the environment via the fluid outlet openings.
  • the sealing sector is arranged, which prevents a gas flow between the fluid inlet opening and the fluid outlet openings.
  • the first fluid outlet opening is arranged in the direction of rotation of the pump rotor in front of the second fluid outlet opening, wherein the first fluid outlet opening is associated with a check valve.
  • the check valve closes the first fluid outlet opening and releases it from a predefined positive pressure prevailing in the pump chamber.
  • the second fluid outlet opening does not have a check valve, so that the second fluid outlet opening is permanently open.
  • At least two slide elements are mounted in the pump rotor, whereby the hydraulic efficiency of the vane pump is increased by the leakage between the pressure side and the suction side is significantly reduced with increasing number of slide elements.
  • the angular distance between the first fluid outlet opening and the second fluid outlet opening is smaller as the Pumpachwinkel.
  • the angular separation is defined as the angular separation between the trailing edge of the first fluid outlet port and the leading edge of the second fluid outlet port.
  • the pump tail angle is defined by two adjacent slide elements. Characterized in that the angular distance between the first and the second fluid outlet opening is smaller than the Pumpfachwinkel, the Pumpfach is fluidly connected in the outlet sector at any time with at least one fluid outlet opening. In this way, a build-up of pressure in the Pumpfach is avoided, which would occur if the Pumpfach in the outlet sector would not be fluidly connected to any of the two Fluidauslassö réelleen, and the ejected air could not escape. As a result, the mechanical tangential load is reduced to the slider element.
  • the tangential width Bl of the at least one slide element preferably corresponds at least to the tangential width B2 of the first fluid outlet opening, whereby the second fluid outlet opening is completely covered and briefly closed when passing through the at least one slide element.
  • the pump housing has a valve cover, a lifting ring and a bottom cover.
  • the cam ring forms the peripheral surface of the pumping chamber and lies with its end face on the valve cover and with its other end face to the bottom cover sealingly.
  • the valve cover closes off the pumping chamber on one side and has the at least two fluid outlet openings.
  • the bottom element has the fluid inlet opening.
  • FIG. 1 shows a vane-cell gas pump 10 designed as a so-called vacuum pump, which is intended, for example, for use in a motor vehicle and can generate an absolute pressure of, for example, 100 mbar or less.
  • the vane pump 10 has a metal pump housing 20, which forms a pumping chamber 22.
  • the pump housing 20 is essentially composed of a lifting ring 74, a bottom plate 76 and a valve cover 72.
  • the fluid inlet port 60 is formed in the bottom plate 76.
  • the two fluid outlet openings 52, 54 are formed in the valve cover 72.
  • the first fluid outlet opening 52 is arranged in the direction of rotation of the pump rotor 30 in front of the second fluid outlet opening 54.
  • the first fluid outlet 52 is fluidly associated with a check valve 70, wherein the check valve 70 is a reed valve and a valve tongue 80 and a Wegbegrenzer 82, both of which are fixed to the valve cover 72.
  • the second fluid outlet opening 54 is not associated with a valve, so that the second fluid outlet opening 54 is permanently open and allows a resistance-free fluid flow.
  • the second fluid outlet opening 54 is spaced at an angular distance b from the first fluid outlet opening 52, wherein the angular distance b between a leading edge of the second fluid outlet opening 54 and the trailing edge of the first fluid outlet opening 52 is measured.
  • the angular distance b is smaller than one through two adjacent pusher elements 32, 34, 36, 38, 40 trapped Pumpfachwinkel a, so that the exhaust sector 44 passing through Pumpfach is always fluidly connected to at least one fluid outlet opening 52, 54.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

L'invention concerne une pompe à gaz à palettes (10) fonctionnant à sec, comprenant un corps (20) qui forme une chambre (22) de pompe dans laquelle un rotor (30) de pompe comprenant au moins un élément poussoir (32, 34, 36, 38, 40) coulissant est monté en rotation. Au moins un orifice d'entrée de fluide (60) et au moins deux orifices de sortie de fluide (52, 54) sont associés à la chambre (22) de pompe. Un premier orifice de sortie de fluide (52) peut être fermé par un clapet anti-retour (70) et un deuxième orifice de sortie de fluide (54) est ouvert en permanence, et le premier orifice de sortie de fluide (52) est ménagé devant le deuxième orifice de sortie de fluide (54) dans le sens de rotation du rotor (30) de pompe.
EP17713583.7A 2016-06-22 2017-02-01 Pompe à gaz à palettes fonctionnant à sec Active EP3475574B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/EP2016/064429 WO2017220141A1 (fr) 2016-06-22 2016-06-22 Ensemble de pompes à vides de véhicule automobile
PCT/EP2017/052166 WO2017220212A1 (fr) 2016-06-22 2017-02-01 Pompe à gaz à palettes fonctionnant à sec

Publications (2)

Publication Number Publication Date
EP3475574A1 true EP3475574A1 (fr) 2019-05-01
EP3475574B1 EP3475574B1 (fr) 2020-04-01

Family

ID=56194488

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16731591.0A Active EP3475573B1 (fr) 2016-06-22 2016-06-22 Ensemble de pompes à vides de véhicule automobile
EP17713583.7A Active EP3475574B1 (fr) 2016-06-22 2017-02-01 Pompe à gaz à palettes fonctionnant à sec

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP16731591.0A Active EP3475573B1 (fr) 2016-06-22 2016-06-22 Ensemble de pompes à vides de véhicule automobile

Country Status (5)

Country Link
US (2) US11261869B2 (fr)
EP (2) EP3475573B1 (fr)
JP (1) JP2019518905A (fr)
CN (2) CN109154293B (fr)
WO (2) WO2017220141A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11261868B2 (en) * 2017-02-01 2022-03-01 Pierburg Pump Technology Gmbh Vane gas pump with sliding element trmporaily completely covering the elongated fluid outlet opening
CN113374691B (zh) * 2021-06-04 2023-01-20 淄博真空设备厂有限公司 一种汽车节能真空泵

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772637A (en) * 1952-03-20 1956-12-04 Jabsco Pump Co Impeller pump
US3016184A (en) * 1959-01-19 1962-01-09 Scaife Company Rotary compressors
US3267862A (en) * 1964-03-16 1966-08-23 Roper Ind Inc Apparatus for pumping and separating liquid and gaseous fluids
DE1553283A1 (de) * 1964-08-17 1969-09-25 Zahnradfabrik Friedrichshafen Fluegelzellen-Kapselwerk
US3642095A (en) * 1968-03-22 1972-02-15 Fujii Koygo Kk Muffler
US3459275A (en) 1968-08-05 1969-08-05 Niles Pressluftwerkzeuge Veb Soundproof compressed-air machine
GB1303430A (fr) * 1969-06-12 1973-01-17
US3790314A (en) * 1972-05-22 1974-02-05 Abex Corp Vane pump having extended undervane suction ports
CA1080121A (fr) * 1977-12-19 1980-06-24 Edward A. Kempton Procede d'evacuation de l'eau des puits de gaz
US4204816A (en) * 1978-09-08 1980-05-27 The United States Of America As Represented By The Secretary Of The Navy Discharge and pressure relief ports for mechanisms with involute shaped vanes
JPS5641187U (fr) * 1979-09-06 1981-04-16
JPS5641187A (en) 1979-09-10 1981-04-17 Sumitomo Heavy Industries Method and device for prementing spontaneous combustion of coal in coal storage tank
US4737088A (en) * 1985-03-01 1988-04-12 Daikin Kogyo Co., Ltd. Rotary compressor with oil relief passage
JPS6293496A (ja) * 1985-10-18 1987-04-28 Hitachi Ltd 回転ベ−ン式ポンプ
US4746280A (en) * 1987-02-19 1988-05-24 Corken International Corporation Sliding vane pump
JPH01208590A (ja) * 1988-02-10 1989-08-22 Diesel Kiki Co Ltd 圧縮機
DE3909831A1 (de) * 1989-03-25 1990-09-27 Becker Kg Gebr Trockenlaufende drehschiebervakuumpumpe sowie verfahren zu deren herstellung
US5342183A (en) * 1992-07-13 1994-08-30 Copeland Corporation Scroll compressor with discharge diffuser
US5310326A (en) * 1992-09-14 1994-05-10 Mainstream Engineering Corporation Rotary compressor with improved bore configuration and lubrication system
US5378111A (en) * 1993-06-21 1995-01-03 General Motors Corporation Motor vehicle fuel pump assembly with pressure relief orifice
US5536153A (en) * 1994-06-28 1996-07-16 Edwards; Thomas C. Non-contact vane-type fluid displacement machine with lubricant separator and sump arrangement
US5716201A (en) * 1995-07-31 1998-02-10 Coltec Industries Inc. Variable displacement vane pump with vane tip relief
US6872065B1 (en) * 1996-09-06 2005-03-29 Seiko Seiki Kabushiki Kaisha Vane gas compressor having two discharge passages with the same length
US6528907B2 (en) * 2000-04-07 2003-03-04 Mirae Corporation Linear motor
JP3943826B2 (ja) * 2000-11-09 2007-07-11 株式会社日立製作所 オイルポンプ
US6739850B2 (en) * 2001-10-25 2004-05-25 Kyosan Denki Co., Ltd. Motor-type fuel pump for vehicle
CN101676563B (zh) * 2008-09-20 2011-07-20 比亚迪股份有限公司 一种真空泵
US9074588B2 (en) * 2009-05-06 2015-07-07 Amir Khajepour Air compression method and apparatus
KR100953626B1 (ko) * 2009-06-18 2010-04-20 캄텍주식회사 차량용 진공펌프
DE102010029551A1 (de) 2010-06-01 2011-12-01 Robert Bosch Gmbh Geräuschreduzierte Gaspumpe
CN201786661U (zh) 2010-06-18 2011-04-06 大连市铭源全科技开发有限公司 微型油封式双级真空泵
DE102010044898A1 (de) * 2010-09-09 2012-03-15 Schwäbische Hüttenwerke Automotive GmbH Vakuumpumpe mit Lüftungseinrichtung
JP5607492B2 (ja) * 2010-10-20 2014-10-15 日信工業株式会社 負圧ポンプ
US8608465B2 (en) * 2011-06-30 2013-12-17 Peopleflo Manufacturing, Inc. Positive-displacement rotary pump having a positive-displacement auxiliary pumping system
EP2568180B1 (fr) 2011-09-12 2019-11-13 Pierburg Pump Technology GmbH Pompes à cellules battantes
US9751384B2 (en) * 2011-11-24 2017-09-05 Calsonic Kansei Corporation Gas compressor with discharge section and sub-discharge section
JP5774134B2 (ja) * 2012-01-11 2015-09-02 三菱電機株式会社 ベーン型圧縮機
JP2013241907A (ja) 2012-05-22 2013-12-05 Taiho Kogyo Co Ltd バキュームポンプ
JP5963544B2 (ja) * 2012-05-31 2016-08-03 カルソニックカンセイ株式会社 気体圧縮機
JP5913199B2 (ja) * 2012-06-05 2016-04-27 カルソニックカンセイ株式会社 気体圧縮機
JP5828863B2 (ja) * 2012-08-22 2015-12-09 カルソニックカンセイ株式会社 気体圧縮機
CN102878080A (zh) * 2012-10-30 2013-01-16 东风汽车公司 电动真空泵
CN102943759A (zh) * 2012-11-13 2013-02-27 吉林东光奥威汽车制动系统有限公司 一种电动真空泵
DE102012112069A1 (de) 2012-12-11 2014-06-12 Hella Kgaa Hueck & Co. Pumpe
WO2014135202A1 (fr) 2013-03-05 2014-09-12 Pierburg Pump Technology Gmbh Agencement de pompe à vide de véhicule automobile électrique
DE102013104375A1 (de) * 2013-04-30 2014-10-30 Hella Kgaa Hueck & Co. Vakuumpumpe
KR101530568B1 (ko) * 2013-12-10 2015-06-22 영신정공 주식회사 소음 감소를 위한 전동 진공 펌프
US20150260088A1 (en) * 2014-03-14 2015-09-17 Chung-Shan Institute Of Science And Technology, Armaments Bureau, M.N.D Intake/outlet pipe optimization method for rotary engine
JP2016044606A (ja) 2014-08-22 2016-04-04 愛三工業株式会社 バキュームポンプ
JP2016048057A (ja) * 2014-08-28 2016-04-07 愛三工業株式会社 バキュームポンプ
CN204402889U (zh) 2014-11-26 2015-06-17 淄博瑞莱特真空设备有限公司 一种新型干式真空泵结构
CN105065281B (zh) 2015-08-05 2017-05-24 同济大学 一种多排气压力螺杆式压缩机
KR102522991B1 (ko) * 2016-12-29 2023-04-18 엘지전자 주식회사 밀폐형 압축기
US11261868B2 (en) * 2017-02-01 2022-03-01 Pierburg Pump Technology Gmbh Vane gas pump with sliding element trmporaily completely covering the elongated fluid outlet opening
US10697309B2 (en) * 2018-04-25 2020-06-30 Raytheon Technologies Corporation Platform cover plates for gas turbine engine components

Also Published As

Publication number Publication date
CN109154293B (zh) 2021-04-13
EP3475573B1 (fr) 2020-08-05
US20190323506A1 (en) 2019-10-24
WO2017220141A1 (fr) 2017-12-28
US20200309134A1 (en) 2020-10-01
CN109154294B (zh) 2019-12-31
CN109154293A (zh) 2019-01-04
WO2017220212A1 (fr) 2017-12-28
CN109154294A (zh) 2019-01-04
EP3475573A1 (fr) 2019-05-01
EP3475574B1 (fr) 2020-04-01
US11261869B2 (en) 2022-03-01
JP2019518905A (ja) 2019-07-04
US10995757B2 (en) 2021-05-04

Similar Documents

Publication Publication Date Title
DE3800324A1 (de) Fluegelzellenverdichter
DE3919529A1 (de) Vakuumpumpe
DE112015000504T5 (de) Flügelpumpe
DE102018216169A1 (de) Verdichter
DE102004034926B3 (de) Einflügelvakuumpumpe
DE102016121241A1 (de) Hydraulischer Antrieb, hydraulischer Motor und integrierte Pumpe mit dem hydraulischen Antrieb
EP3475574B1 (fr) Pompe à gaz à palettes fonctionnant à sec
DE2942570C2 (de) Flügelzellenpumpe
DE2131000A1 (de) Drehfluegelkompressor
DE102017128972A1 (de) Vakuumpumpe
DE2850371C2 (fr)
DE102014222322B3 (de) Flügelzellenpumpe mit verbessertem Startverhalten
DE4019854A1 (de) Fluegelzellen-vakuumpumpe
DE3826548C2 (de) Flügelzellenverdichter mit variabler Förderleistung
DE4008522C2 (fr)
DE4425406C2 (de) Abstützkonstruktion für eine Drehwelle eines Kompressors
DE3046973A1 (de) Schaufel-verdichter
EP3577342B1 (fr) Pompe à gaz à palettes
WO2010025799A2 (fr) Pompe à vide
DE2654991C3 (de) Drehschieberkompressor
DE2233580A1 (de) Kompressor
DE2054033A1 (en) Multicell compressor - with ptfe check plate
WO2005001291A1 (fr) Pompe
DE102013224660A1 (de) Flügelzellenmaschine mit definiertem Druck in den Hinterflügelräumen
WO2007048382A1 (fr) Pompe

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

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

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20181219

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20191105

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM 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: AT

Ref legal event code: REF

Ref document number: 1251685

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200415

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017004508

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

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

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: 20200701

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200401

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

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: 20200401

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: 20200801

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: 20200401

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: 20200817

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: 20200401

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: 20200401

Ref country code: NO

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: 20200701

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: 20200702

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: 20200401

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

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: 20200401

Ref country code: RS

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: 20200401

Ref country code: HR

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: 20200401

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

Ref country code: AL

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: 20200401

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017004508

Country of ref document: DE

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

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: 20200401

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: 20200401

Ref country code: SM

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: 20200401

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: 20200401

Ref country code: ES

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: 20200401

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

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

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: 20200401

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: 20200401

26N No opposition filed

Effective date: 20210112

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

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: 20200401

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200401

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

Effective date: 20210201

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210228

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: 20210201

Ref country code: CH

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

Effective date: 20210228

Ref country code: LI

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

Effective date: 20210228

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: 20210201

Ref country code: IE

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

Effective date: 20210201

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

Ref country code: BE

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

Effective date: 20210228

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1251685

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220201

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: 20220201

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: 20200401

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; INVALID AB INITIO

Effective date: 20170201

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

Ref country code: MK

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: 20200401

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

Ref country code: MT

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: 20200401

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: 20200401

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502017004508

Country of ref document: DE

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

Ref country code: DE

Payment date: 20260218

Year of fee payment: 10

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

Ref country code: IT

Payment date: 20260224

Year of fee payment: 10

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

Ref country code: FR

Payment date: 20260218

Year of fee payment: 10