WO2006011760A1 - Pompes a ejecteur a vide - Google Patents

Pompes a ejecteur a vide Download PDF

Info

Publication number
WO2006011760A1
WO2006011760A1 PCT/KR2005/002453 KR2005002453W WO2006011760A1 WO 2006011760 A1 WO2006011760 A1 WO 2006011760A1 KR 2005002453 W KR2005002453 W KR 2005002453W WO 2006011760 A1 WO2006011760 A1 WO 2006011760A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle body
cover
vacuum ejector
ejector pump
opening
Prior art date
Application number
PCT/KR2005/002453
Other languages
English (en)
Inventor
Ho-Young Cho
Original Assignee
Korea Pneumatic System Co., 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 Korea Pneumatic System Co., Ltd filed Critical Korea Pneumatic System Co., Ltd
Priority to DE112005001806T priority Critical patent/DE112005001806B4/de
Publication of WO2006011760A1 publication Critical patent/WO2006011760A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
    • F04F5/22—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/467—Arrangements of nozzles with a plurality of nozzles arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/48—Control
    • F04F5/52—Control of evacuating pumps

Definitions

  • the present invention relates generally to vacuum ejector pumps, operated by compressed air which flows in and out at high velocity, thus creating negative pressure in a space, and more particularly to a vacuum ejector pump, which includes a cylindrical nozzle body having one or more mounting nozzles therein, and a cover mounted to the nozzle body to cover an opening formed at a predetermined position of the nozzle body.
  • a conventional vacuum pump which is called a multi-stage ejector, is shown in
  • the vacuum pump 100 includes chambers 101, 102, and 103 which are arranged in series, and a plurality of nozzles 105, 106, and 107 which are installed through partition walls between the chambers 101, 102, and 103.
  • the chambers 101, 102, and 103 communicate with a common vacuum chamber 104 through holes 108, 109, and 110.
  • the vacuum pump 100 is connected to external equipment (e.g. suction equipment) through a port 111 which is formed at a predetermined position in the vacuum chamber 104.
  • the compressed air is discharged along with internal air of the vacuum chamber 104 and the external equipment, so that the internal pressure of the vacuum chamber 104 is lowered.
  • the pressure in the vacuum chamber 104 becomes lower than the pressure in each chamber 101, 102, 103, all of the holes 108, 109, and 110 are closed by valves 112, 113, and 114.
  • the vacuum chamber 104 maintains the pressure level. During such a process, negative pressure is created in the external equipment. The negative pressure is used to carry articles.
  • the conventional vacuum pump 100 is problematic in that it is impossible to directly install it in various equipment requiring that air be expelled, and it is difficult to disassemble or assemble the pump for repair or maintenance.
  • the vacuum pump 200 includes a plurality of nozzles 202, 203, 204, and 205 and valve members 210.
  • the nozzles 202, 203, 204, and 205 are assembled in series, with slots 207, 208, and 209 provided between the nozzles.
  • the valve members 210 are located between the nozzles 202, 203, 204, and 205, and serve to open and close communication holes 206 which are formed in walls of the nozzles 202, 203, 204, and 205.
  • Coupling means are provided on the nozzles 202, 203, 204, and 205 to couple the nozzles 202, 203, 204, and 205 to an integrated, rotationally symmetrical nozzle body 201.
  • the vacuum pump 200 is directly accommodated in a housing H of another piece of equipment, and is operated by high-speed compressed air which sequentially passes through the nozzles 202, 203, 204, and 205, thus creating negative pressure in an internal space S of the housing H.
  • the conventional vacuum pump 200 is problematic in that joints between the nozzles 202, 203, 204, and 205 are prone to break or be deformed (bent or distorted) by external pressure or impact when the vacuum pump 200 is in use. Further, when the vacuum pump 200 breaks down, all components of the pump must be dis ⁇ assembled to check the vacuum pump 200. Disclosure of Invention Technical Problem
  • the present invention is intended to solve the problems of the vacuum pump 200 disclosed in the above-mentioned patent.
  • the present invention provides a vacuum ejector pump which has characteristics disclosed in the first claim.
  • the preferred embodiment of this invention covers elements disclosed in the dependent claims.
  • the vacuum ejector pump of the present invention is equal to the above-mentioned conventional vacuum pump 200 in that the pump may be directly installed in various equipment requiring that air be expelled.
  • the vacuum ejector pump of this invention is more advantageous than the conventional vacuum pump in that components are safely protected by a nozzle body, and components including mounting nozzles or valve members can be observed through an opening or a cover with the naked eyes, thus enabling rapid and precise check and treatment of malfunctions of the pump.
  • FIG. 1 is a sectional view of a conventional vacuum ejector pump
  • FlG. 2 is a sectional view of another conventional vacuum ejector pump
  • FlG. 3 is a perspective view of a vacuum ejector pump, according to an embodiment of the present invention.
  • FlG. 4 is an exploded perspective view of the vacuum ejector pump of FlG. 3;
  • FlG. 5 is a vertical sectional view of the vacuum ejector pump of FlG. 3;
  • FlG. 6 is a sectional view taken along line A-A of FlG. 5;
  • FlG. 7 is a sectional view taken along line B-B of FlG. 5;
  • FlG. 8 is a view to show the state where the vacuum ejector pump according to the present invention is accommodated in an additional housing;
  • FlG. 9 is a sectional view taken along line C-C of FlG. 8, and illustrating the state in which a surrounding space is evacuated. Best Mode for Carrying Out the Invention
  • a vacuum ejector pump As shown in FIGS. 3 through 9, a vacuum ejector pump, according to this invention, is denoted by reference numeral 1.
  • the vacuum ejector pump 1 includes a cylindrical nozzle body 2, a cover 10, and fastening means 13 and 14.
  • An opening 3 is provided at a predetermined position in the nozzle body 2.
  • the cover 10 is provided to cover the opening 3 of the nozzle body 2.
  • the fastening means 13 and 14 serve to fasten the nozzle body 2 to the cover 10.
  • One or more mounting nozzles 4 and 5 are provided in the nozzle body 2, and are visible through the opening 3.
  • the mounting nozzles 4 and 5 are arranged to be coaxial with the nozzle body 2, and are installed through partition walls 6 and 7 which are provided in the nozzle body 2 in such a way as to be integrated with the nozzle body 2, as shown in the drawings.
  • the mounting nozzles 4 and 5 may comprise a plurality of nozzles such that the vacuum ejector pump 1 has desired efficiency characteristics. In this case, the mounting nozzles 4 and 5 are arranged in series, and are spaced apart from each other.
  • a plurality of holes 8 is formed in the wall of the nozzle body 2.
  • the holes 8 allow the vacuum ejector pump 1 to communicate with a space S surrounding the vacuum ejector pump 1 (see, FlG. 8).
  • the holes 8 may be formed on the wall of the cover 10.
  • valve members 9 are provided to open or close the holes 8.
  • Each valve member 9 is a flat valve, and closes an associated hole 8, when the surrounding space S reaches a pressure which is lower than the internal pressure of the vacuum ejector pump 1, thus preventing a stream of compressed air from passing through an air channel into the surrounding space S.
  • Each valve member 9 may be made of a flexible material, such as natural rubber, synthetic rubber, or urethane rubber. Meanwhile, if a great number of valve members 9 is required, it takes a longer time to assemble and disassemble the pump. Thus, it is preferable that the valve members 9 be integrated with a gasket 11.
  • the gasket 11 is provided to seal a junction of the nozzle body 2 and the cover 10, thus preventing an undesirable stream of air at the contacting portion.
  • the gasket 11 has bent wing pieces 12 which extend vertically. The wing pieces 12 contact the outer surface of the nozzle body 2, and function to prevent the gasket 11 from being un ⁇ desirably moved.
  • the cover 10 is provided to cover the opening 3 of the nozzle body 2.
  • the cover 10 and the nozzle body 2 are fastened to each other, the combination thereof has a circular cross-section (see, FIGS. 6 and 7).
  • the cover 10 is preferably manufactured using a transparent material.
  • the fastening means 13 and 14 comprise two O-rings. The O- rings 13 and 14 are fitted to surround contacting portions of opposing ends 10a and 10b of the cover 10 and the surface of the nozzle body 2.
  • An injection unit 15 having an air injection hole 15a is mounted to an air inlet port
  • a cylindrical filter 17 has a cross-section whose diameter is larger than that of the nozzle body 2.
  • the filter 17 is arranged to be coaxial with the nozzle body 2 while receiving the nozzle body 2 therein.
  • opposite ends of the filter 17 are supported by a step 13a of the O-ring 13 which is provided around the air inlet port 2a, and a step 16a of the silencer 16 which is provided around the air outlet port 2b.
  • the means or method of supporting the filter 17 may be otherwise designed.
  • the vacuum ejector pump 1 according to this invention accommodated in the housing H is shown in FlG. 8.
  • the vacuum ejector pump 1 passes through the surrounding space S, and is held by both walls of the housing.
  • the surrounding space S may communicate with the vacuum ejector pump 1 through the holes 8.
  • Air fed into the nozzle body 2 through the air injection hole 15a passes through the mounting nozzles 4 and 5 at high velocity, and is discharged to the outside through the air outlet port 2b of the nozzle body 2.
  • air in the surrounding space S flows through the open holes 8 into the vacuum ejector pump 1, prior to being discharged along with compressed air (see, FlG. 9). Due to such exhausting action, the pressure of the surrounding space S starts dropping. Thereby, when the pressure of the surrounding space S is lower than the internal pressure of the vacuum ejector pump 1, all of the holes 8 are closed by the valve members 9. Thus, the surrounding space S maintains the pressure level.

Abstract

L'invention porte sur une pompe à éjecteur à vide commandée par de l'air comprimé qui entre et sort de la pompe à grande vitesse, créant de la sorte une pression négative dans un espace environnant extérieur (S). La pompe à éjecteur à vide de l'invention comprend un corps de buse cylindrique (2) et une enveloppe (10). Le corps de buse comporte une ouverture (3) dans une position prédéterminée. Une ou plusieurs buses d'assemblage (4, 5) sont installées coaxialement dans le corps de buse et sont visibles à travers l'ouverture précitée (3). Des trous (8) sont formés dans la paroi du corps de buse afin de permettre à la pompe de communiquer avec l'espace environnant (S). L'enveloppe sert à couvrir l'ouverture du corps de buse. En outre, la pompe comprend des organes soupapes souples (9) qui ouvrent ou ferment les trous, et des moyens de fixation (13, 14) qui permettent de fixer l'enveloppe sur le corps de buse.
PCT/KR2005/002453 2004-07-28 2005-07-28 Pompes a ejecteur a vide WO2006011760A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112005001806T DE112005001806B4 (de) 2004-07-28 2005-07-28 Vakuumsaugstrahlpumpe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2004-0059067 2004-07-28
KR1020040059067A KR100578540B1 (ko) 2004-07-28 2004-07-28 진공 이젝터 펌프

Publications (1)

Publication Number Publication Date
WO2006011760A1 true WO2006011760A1 (fr) 2006-02-02

Family

ID=35786464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2005/002453 WO2006011760A1 (fr) 2004-07-28 2005-07-28 Pompes a ejecteur a vide

Country Status (5)

Country Link
US (1) US20070148009A1 (fr)
KR (1) KR100578540B1 (fr)
CN (1) CN100451351C (fr)
DE (1) DE112005001806B4 (fr)
WO (1) WO2006011760A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007078077A1 (fr) 2005-12-30 2007-07-12 Korea Pneumatic System Co., Ltd Pompes a ejecteur sous vide
EP2125585A1 (fr) * 2007-03-15 2009-12-02 Korea Pneumatic System Co., Ltd Système de vide utilisant une cartouche de filtre
DE102009047085A1 (de) 2009-11-24 2011-06-01 J. Schmalz Gmbh Druckluftbetriebener Unterdruckerzeuger
JP2014504693A (ja) * 2011-01-03 2014-02-24 コリア ニューマチック システム カンパニー，リミテッド クィックリリース真空ポンプ

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100624563B1 (ko) * 2004-11-18 2006-09-18 오토르 주식회사 이젝터 펌프
KR200460087Y1 (ko) * 2010-04-14 2012-05-02 킴스엔지니어링 주식회사 에어 이젝터
KR200460086Y1 (ko) * 2010-04-15 2012-05-02 킴스엔지니어링 주식회사 에어 이젝터
KR101066212B1 (ko) * 2011-03-10 2011-09-20 한국뉴매틱(주) 퀵-릴리즈 진공펌프
KR101157542B1 (ko) * 2012-04-26 2012-06-22 한국뉴매틱(주) 인-라인 진공펌프
DE102013107537B4 (de) * 2013-07-16 2015-02-19 J. Schmalz Gmbh Mehrstufiger Ejektor
KR101472503B1 (ko) 2014-04-24 2014-12-12 한국뉴매틱(주) 이젝터 어셈블리 및 진공펌프
CN106089636B (zh) * 2016-08-17 2019-03-26 魏学惠 空压驱动式真空泵
CN106212648A (zh) * 2016-08-30 2016-12-14 苏州贝特贝斯能源技术有限公司 车载微真空果蔬采摘现场冷却装置及其预冷方法
KR101699721B1 (ko) * 2016-09-01 2017-02-13 (주)브이텍 진공 펌프 및 그 어레이
CN106229287B (zh) * 2016-09-30 2019-04-05 厦门市三安光电科技有限公司 用于转移微元件的转置头及微元件的转移方法
CN108317108A (zh) * 2018-04-12 2018-07-24 微可为（厦门）真空科技有限公司 一种超音速真空管

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH054185A (ja) * 1991-06-28 1993-01-14 Smc Corp 真空供給装置
KR19980074701A (ko) * 1997-03-26 1998-11-05 윤종용 반도체 제조용 모터펌프
KR19990039684A (ko) * 1997-11-13 1999-06-05 윤종용 투명커버가 취부된 파워단자를 갖는 진공펌프
KR20010073650A (ko) * 2000-01-19 2001-08-01 오명환 챔버의 개폐장치 및 이를 포함하는 진공챔버장치
US6394760B1 (en) * 1998-03-20 2002-05-28 Piab Ab Vacuum ejector pump

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137240A (en) * 1961-07-17 1964-06-16 Russell G Hunt Pumps
SE370765B (fr) * 1973-12-05 1974-10-28 Piab Ab
JPH0353039Y2 (fr) * 1987-05-30 1991-11-19
SE466561B (sv) * 1988-06-08 1992-03-02 Peter Tell Multiejektoranordning
JPH04194400A (ja) * 1990-11-27 1992-07-14 Smc Corp 真空発生ユニット
SE469291B (sv) * 1991-10-31 1993-06-14 Piab Ab Ejektorarrangemang innefattande minst tvaa tryckluftsdrivna ejektorer samt foerfarande foer att med minst tvaa tryckluftsdrivna ejektorer aastadkomma ett oenskat undertryck paa kortast moejliga tid och med minsta energifoerbrukning
US5683227A (en) * 1993-03-31 1997-11-04 Smc Corporation Multistage ejector assembly
IL125791A (en) * 1998-08-13 2004-05-12 Dan Greenberg Vacuum pump
SE513991C2 (sv) * 1999-02-26 2000-12-11 Piab Ab Filter för en vakuumpump av ejektortyp med ljuddämpare
DE19957066A1 (de) * 1999-11-26 2001-05-31 Mannesmann Vdo Ag Saugstrahlpumpe
US6877571B2 (en) * 2001-09-04 2005-04-12 Sunstone Corporation Down hole drilling assembly with independent jet pump
KR100454082B1 (ko) * 2001-10-15 2004-10-26 한국뉴매틱(주) 진공 발생/파기 장치
KR20020003166A (ko) * 2001-11-24 2002-01-10 장명수 목초액(스모크향)을 이용한 건강보조식품의 제조방법.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH054185A (ja) * 1991-06-28 1993-01-14 Smc Corp 真空供給装置
KR19980074701A (ko) * 1997-03-26 1998-11-05 윤종용 반도체 제조용 모터펌프
KR19990039684A (ko) * 1997-11-13 1999-06-05 윤종용 투명커버가 취부된 파워단자를 갖는 진공펌프
US6394760B1 (en) * 1998-03-20 2002-05-28 Piab Ab Vacuum ejector pump
KR20010073650A (ko) * 2000-01-19 2001-08-01 오명환 챔버의 개폐장치 및 이를 포함하는 진공챔버장치

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007078077A1 (fr) 2005-12-30 2007-07-12 Korea Pneumatic System Co., Ltd Pompes a ejecteur sous vide
EP2125585A1 (fr) * 2007-03-15 2009-12-02 Korea Pneumatic System Co., Ltd Système de vide utilisant une cartouche de filtre
EP2125585A4 (fr) * 2007-03-15 2012-11-14 Korea Pneumatic Sys Co Ltd Système de vide utilisant une cartouche de filtre
DE102009047085A1 (de) 2009-11-24 2011-06-01 J. Schmalz Gmbh Druckluftbetriebener Unterdruckerzeuger
EP2333350A1 (fr) 2009-11-24 2011-06-15 J. Schmalz GmbH Appareil de production de dépression pneumatique
US8596990B2 (en) 2009-11-24 2013-12-03 J. Schmalz Gmbh Pneumatic vacuum generator
DE202009019074U1 (de) 2009-11-24 2016-05-23 J. Schmalz Gmbh Druckluftbetriebener Unterdruckerzeuger
JP2014504693A (ja) * 2011-01-03 2014-02-24 コリア ニューマチック システム カンパニー，リミテッド クィックリリース真空ポンプ

Also Published As

Publication number Publication date
KR100578540B1 (ko) 2006-05-15
DE112005001806B4 (de) 2012-06-21
KR20040072573A (ko) 2004-08-18
CN101002027A (zh) 2007-07-18
DE112005001806T5 (de) 2007-07-12
CN100451351C (zh) 2009-01-14
US20070148009A1 (en) 2007-06-28

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