EP0043566B1 - Appareil éjecteur - Google Patents

Appareil éjecteur Download PDF

Info

Publication number
EP0043566B1
EP0043566B1 EP81105170A EP81105170A EP0043566B1 EP 0043566 B1 EP0043566 B1 EP 0043566B1 EP 81105170 A EP81105170 A EP 81105170A EP 81105170 A EP81105170 A EP 81105170A EP 0043566 B1 EP0043566 B1 EP 0043566B1
Authority
EP
European Patent Office
Prior art keywords
ejector device
sections
another
housing
chambers
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.)
Expired
Application number
EP81105170A
Other languages
German (de)
English (en)
Other versions
EP0043566A1 (fr
Inventor
Jürgen Volkmann
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.)
Successione Testamentaria thilo Volkmann
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6106489&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0043566(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT81105170T priority Critical patent/ATE7244T1/de
Publication of EP0043566A1 publication Critical patent/EP0043566A1/fr
Application granted granted Critical
Publication of EP0043566B1 publication Critical patent/EP0043566B1/fr
Expired legal-status Critical Current

Links

Images

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
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • 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

Definitions

  • the invention relates to an ejector device which consists of at least two ejectors formed by a corresponding number of axially successive jet nozzles of increasing size within a common elongate housing which is subdivided by transverse walls containing the jet nozzles into chambers separated from one another by check valves.
  • Ejector devices of this type in which the nozzles located between the first and the last nozzle are both driving and catching nozzles, are known in principle.
  • their use has hitherto been restricted to the generation of negative pressure for pumping empty containers and the like, with first all chambers with the exception of the chambers following the last nozzle being connected to the container and providing for the extraction of relatively large amounts of air which by gradually closing the check valves with increasing vacuum, until the end only the ejector formed by the first two jet nozzles generates the final vacuum.
  • the design of such ejector devices is associated with considerable effort and requires a largely individual adaptation to the individual application.
  • the invention is therefore based on the object of creating an ejector device of the type mentioned which, while taking advantage of the economic advantages of mass production, allows easy adaptation to a wide variety of applications without any special processing effort and thereby increases the possible uses of the ejector device.
  • the housing in the modular system consists of a plurality of sections which adjoin one another in the longitudinal direction and can be combined with one another as desired, at least some of which each contain one of the said transverse walls.
  • the invention is based on the consideration that the number of successive ejectors is different for different applications, and creates in the way of the modular system the possibility of an individual compilation of modular elements designed as sections for an ejector device corresponding to the respective purpose.
  • the combination of sections that can be combined with one another in any order enables the individual sections to be produced in large numbers without restricting the possible combinations.
  • the production costs are thereby reduced, and the respective suitable ejector device can be put together individually from a limited number of prefabricated sections in the shortest possible time.
  • the sections can be assembled in different ways.
  • the sections are held together by common connecting means such as continuous tie rods.
  • special connecting means can also be provided for connecting two adjacent sections.
  • the housing has a circular cross section and the sections are provided with a screw thread.
  • the sections can then be screwed together directly.
  • the individual sections can each consist of a transverse wall and an adjoining jacket wall.
  • the distance between the nozzles is determined by the length of the jacket wall sections.
  • a special design feature of the invention provides that the transverse walls on the one hand and the Sheath walls of the chambers on the other hand form separate sections. For these measures, it is sufficient to provide only the sections forming the peripheral walls of the chambers in different lengths in order to be able to take any nozzle spacing into account.
  • each transverse wall can contain a jet nozzle, preferably inserted in its center, or also several jet nozzles in any distribution, provided that corresponding transverse walls with a matching nozzle distribution are only available for each nozzle size. It is of course also possible to provide the transverse walls with a corresponding number and distribution of bores from case to case, in which the nozzles are only subsequently inserted in a suitable manner.
  • the nozzles can also be formed directly in the transverse walls by appropriately shaped bores.
  • the transverse walls each contain one or more through-openings provided with check valves, which at the beginning of the generation of negative pressure allow large amounts of air to be extracted with the aid of all nozzles located one behind the other and then automatically with increasing negative pressure Switch off chambers whose negative pressure is limited due to the increasing nozzle size.
  • Yet another design feature of the invention provides that the sections in the region of the jacket walls of the chambers are provided with connection openings into which hose connections, valves or sealing plugs can be screwed.
  • a section for forming a pressure chamber following the last jet nozzle is pot-shaped and provided with one or more front and / or radial blow-out openings.
  • the blow-out openings can be provided with a thread for screwing in connection nipples or sealing plugs, and finally the cup-shaped section can contain an insert for sound insulation.
  • a transverse wall containing the first nozzle has at least one additional opening for connecting a pressure accumulator via a shuttle valve, which can be charged via the latter from a pressure medium source feeding the ejector device.
  • the ejector device according to the invention enables a wide variety of uses and thus offers a multitude of advantages over the known ejector devices with a plurality of ejectors.
  • the ejector device according to the invention can be used in a known manner for vacuum generation by means of a pressurized gas, for example compressed air, the extracted gas being a multiple of the amount of propellant gas due to the series connection of several ejectors.
  • a pressurized gas for example compressed air
  • the extracted gas being a multiple of the amount of propellant gas due to the series connection of several ejectors.
  • the ejector device according to the invention also enables the simultaneous generation of overpressure and underpressure, as is required, for example, for the mechanical movement of sheets of paper in printers.
  • overpressure and underpressure as is required, for example, for the mechanical movement of sheets of paper in printers.
  • the special arrangement of the additional opening in the transverse wall containing the first nozzle for connecting a pressure accumulator via a shuttle valve also enables an abrupt cancellation of the negative pressure and generation of excess pressure when the propellant gas is switched off in this type of application, in that case the shuttle valve changes itself and so far connecting chamber under vacuum, to which the suction devices of the machine are connected, connects to the pressure accumulator. The paper sheets sucked in are released immediately.
  • gases can also be mixed in a simple manner, a pressurized first gas being used as the propellant gas and further gases being sucked into the intermediate chambers between the individual jet nozzles and being mixed with one another in the process.
  • the mixing of gases with liquids and / or powdered or granulated solid substances is also possible in the same way.
  • the ejector device enables the amount of gas used as the propellant gas to be multiplied with a corresponding reduction in its pressure, with the lowest energy expenditure. For example, if five ejectors are connected in series, this results in a blow-out amount of gas which is at least (eight times the amount of propellant gas used with a corresponding reduction in pressure).
  • 1-5 denotes five jet nozzles increasing in size in the order of the designation numbers, which in the example form a single nozzle set located in the central axis of the ejector device.
  • the jet nozzles 1-5 are used in receiving bores within transverse walls 6-10 by pressing, gluing or screwing or can also be part of these walls.
  • the construction A provides that the transverse walls, as in the example the transverse wall 10, each form a section and are received by a recess delimited by a shoulder within a section 11 forming the jacket wall of a subsequent chamber, in which they are held by a further jacket wall section 12 are held and sealed, which are provided with an external thread and are screwed into the subsequent jacket wall section 11 provided with an internal thread within the recess.
  • This construction is particularly suitable in the event that the transverse wall contains a plurality of eccentric nozzles (not shown) which must be aligned with one another from transverse wall to transverse wall.
  • Construction B provides that the transverse walls, such as walls 6-9 in the example, connect in one piece to a jacket section and thereby form a continuous segment with this, which is directly connected to the ends by means of internal and external threads adjacent section can be screwed. It is obvious that this construction can only be used in connection with a central jet nozzle.
  • the chambers 13-16 created between the individual jet nozzles by the segment design described above are connected to one another by bores 17-20 in the transverse walls, which have non-return flaps 21-24 which close as soon as the negative pressure in one chamber becomes greater than in the subsequent chamber .
  • the last chamber 25 is under pressure during operation.
  • the individual chambers 13-16 contain radial connection openings 26-29, which are provided with threads and, depending on the intended use, enable the attachment of connecting nipples or sealing plugs.
  • the segment 11 which is designed to seal off the device and is cup-shaped, is provided with radial connection openings 30a and an axial connection opening 30b, into which connection nipples or sealing plugs 31a, 31b can be inserted.
  • the first transverse wall 6 contains a pressure distribution chamber 32 in front of the jet nozzle 1 or possibly several such jet nozzles used therein, to which a connecting nipple 34 inserted into a bore 33 leads for the supply of the propellant gas to the ejector device.
  • the chamber 13 located between the first and second jet nozzles 1 and 2 is also connected via a connection opening 35 in the transverse wall 6 to the one connection of a shuttle valve 36, the other connection of which is connected to the propellant gas supply line leading to the connection nipple 34 and to the third one Connection is a pressure accumulator 37.
  • This arrangement ensures that when the propellant gas supply to the nozzle 1 is switched off via the connecting nipple 34, the negative pressure in the chamber 13 immediately breaks down as a result of the changeover valve 36 being switched over, and instead an excess pressure builds up in the chamber 13 from the pressure accumulator 37.
  • a regulator 38 in the propellant gas supply line enables the pressure and quantity of the propellant gas to be regulated continuously.
  • a muffler 39 projecting into the last chamber 25 can be arranged on the segment 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (14)

1. Appareil éjecteur composé d'un nombre adéquat de buses à jet, avec un minimum de deux, lesqelles sont alignées axialement en série, avec des diamètres croissants, à l'intérieur d'un corps commun allongé, divisé en plusieurs chambres distinctes par des parois transversales ou cloisons munies de clapets de non-retour et qui contiennet les buses à jet, caractérisé par le fait que le corps, dans un système modulaire, se compose de plusieurs sections (6 à 11) raccordées entre elles dans le sens :ongitudinal et pouvant être combinées entre elles de toute façon désirée, quelques-unes au moins de ces sections comprenant une des parois transversales ou cloisons précitées.
2. Appareil éjecteur selon la Revendication 1, caractérisé par le fait que les sections (6 à 11) sont maintenues assemblées par un moyen commun de raccordement.
3. Appareil éjecteur selon la Revendication 1, caractérisé par le fait que l'on a prévu des moyens de raccordement pour assembler deux sections adjacentes (6 à 11).
4. Appareil éjecteur selon la Revendication 3, caractérisé par le fait que le corps présente une section transversale circulaire et que les sections (6 à 11) présentent des parties filetées.
5. Appareil éjecteur selon la Revendication 4, caractérisé par le fait que les sections (6 à 11) se vissent directement les unes avec les autres.
6. Appareil éjecteur selon la Revendication 4, caractérisé par le fait que les sections (6 à 11) sont assemblées les unes contre les autres par des écrous d'accouplement.
7. Appareil éjecteur selon l'une quelconque des Revendications 1 à 6, caractérisé par le fait que les parois transversales (10) d'une part et les parois périphériques (12) d'autre part constituent des sections distinctes entre elles.
8. Appareil éjecteur selon la Revendication 7, caractérisé par le fait que les parois périphériques (12) des sections formant les chambres (16) sont réalisés avec des longueurs différentes qui correspondent à la distance désirée entre les buses adjacentes.
9. Appareil éjecteur selon l'une quelconque des Revendications 1 à 8, caractérisé par le fait que les parois transversales comportent, en plus d'au moins une buse à jet (1 à 5) par paroi, un ou plusieurs orifices passants (17 à 20) pourvus de clapets de non-retour (21 à 24).
10. Appareil éjecteur selon l'une quelconque des Revendications 1 à 9, caractérisé par le fait que les sections (7, 8, 9, 12) sont pourvues d'orifices de raccordement (26 à 29) dans la zone des parois périphériques des chambres (13 à 16).
11. Appareil éjecteur selon la Revendication 10, caractérisé par le fait que l'on peut visser dans les orifices de raccordement (26 à 29) des raccords filtés, des valves ou clapets, ou des bouchons obturateurs.
12. Appareil éjecteur selon l'une quelconque des Revendications 1 à 11, caractérisé par le fait qu'une section (11), destinée à constituer la chambre de compression, présente une forme en cuvette et comporte un ou plusieurs orifices radiaux ou frontaux de purge (30a, 30b).
13. Appareil éjecteur selon la Revendication 12, caractérisé par le fait que les orifices de purge (30a, 30b) sont pourvus d'un filetage pour y visser des mamelons de raccordement (31a, 31 b) ou des bouchons obturateurs.
14. Appareil éjecteur selon l'une ou l'autre des Revendications 1 ou 13, caractérisé par le fait que la section (11) en forme de cuvette comporte une pièce rapportée (25) destinée à amortir le bruit.
EP81105170A 1980-07-05 1981-07-03 Appareil éjecteur Expired EP0043566B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105170T ATE7244T1 (de) 1980-07-05 1981-07-03 Ejektorvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3025525 1980-07-05
DE19803025525 DE3025525A1 (de) 1980-07-05 1980-07-05 Ejektorvorrichtung

Publications (2)

Publication Number Publication Date
EP0043566A1 EP0043566A1 (fr) 1982-01-13
EP0043566B1 true EP0043566B1 (fr) 1984-04-25

Family

ID=6106489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105170A Expired EP0043566B1 (fr) 1980-07-05 1981-07-03 Appareil éjecteur

Country Status (5)

Country Link
US (1) US4466778A (fr)
EP (1) EP0043566B1 (fr)
JP (1) JPS5783699A (fr)
AT (1) ATE7244T1 (fr)
DE (1) DE3025525A1 (fr)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE427954B (sv) * 1979-06-15 1983-05-24 Piab Ab Ejektor
IL70239A (en) * 1983-11-15 1988-03-31 Dan Greenberg Multichamber ejector
DE3431240A1 (de) * 1984-08-24 1986-03-06 Michael 4150 Krefeld Laumen Kaeltemaschine bzw. waermepumpe sowie strahlpumpe hierfuer
IL74282A0 (en) * 1985-02-08 1985-05-31 Dan Greenberg Multishaft jet suction device
US4790054A (en) * 1985-07-12 1988-12-13 Nichols William O Multi-stage venturi ejector and method of manufacture thereof
US4759691A (en) * 1987-03-19 1988-07-26 Kroupa Larry G Compressed air driven vacuum pump assembly
ATE111569T1 (de) * 1987-06-29 1994-09-15 Thilo Volkmann Strahlpumpe.
JPH0247618U (fr) * 1988-09-24 1990-03-30
AU628595B2 (en) * 1989-07-10 1992-09-17 John Stanley Melbourne Improved vacuum pump device
JP2878385B2 (ja) * 1990-04-20 1999-04-05 エスエムシー株式会社 エゼクタ装置
DE4032857C1 (en) * 1990-10-12 1992-01-23 Noell Gmbh, 8700 Wuerzburg, De Bendable grab unit for remote searching - has illumination member and flexible coating unit
JPH0467618U (fr) * 1990-10-18 1992-06-16
US5228839A (en) * 1991-05-24 1993-07-20 Gast Manufacturing Corporation Multistage ejector pump
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
DE4430574C2 (de) * 1994-08-18 1996-07-18 Mannesmann Ag Strahlpumpe mit zwei Überschalldüsen
DE4432441A1 (de) * 1994-09-12 1996-03-14 Sellmaier Horst Mischdüse
SE511716E5 (sv) * 1998-03-20 2009-01-28 Piab Ab Ejektorpump
IL125791A (en) * 1998-08-13 2004-05-12 Dan Greenberg Vacuum pump
DE29916531U1 (de) * 1999-09-20 2001-02-08 Volkmann Thilo Ejektorpumpe
DE20011839U1 (de) 2000-07-07 2000-12-14 Festo Ag & Co Vakuumerzeugervorrichtung
KR20030077349A (ko) * 2002-03-26 2003-10-01 삼조쎌텍 주식회사 이소플라본을 함유하는 기능성 츄잉 껌
SE0201335L (sv) * 2002-05-03 2003-03-25 Piab Ab Vakuumpump och sätt att tillhandahålla undertryck
KR100629994B1 (ko) * 2005-12-30 2006-10-02 한국뉴매틱(주) 진공 이젝터 펌프
KR100730323B1 (ko) * 2007-03-15 2007-06-19 한국뉴매틱(주) 필터 카트리지를 이용한 진공 시스템
AU2009291925B2 (en) * 2008-09-09 2015-11-19 Dresser-Rand Company Supersonic ejector package
US20100150743A1 (en) * 2008-12-12 2010-06-17 Norgren Automotive, Inc. Single Line Venturi Apparatus
GB2509184A (en) 2012-12-21 2014-06-25 Xerex Ab Multi-stage vacuum ejector with moulded nozzle having integral valve elements
GB2509182A (en) 2012-12-21 2014-06-25 Xerex Ab Vacuum ejector with multi-nozzle drive stage and booster
US10753373B2 (en) * 2012-12-21 2020-08-25 Piab Aktiebolag Vacuum ejector nozzle with elliptical diverging section
GB2509183A (en) 2012-12-21 2014-06-25 Xerex Ab Vacuum ejector with tripped diverging exit flow nozzle
KR101424959B1 (ko) 2014-04-08 2014-08-01 한국뉴매틱(주) 진공펌프
GB201418117D0 (en) 2014-10-13 2014-11-26 Xerex Ab Handling device for foodstuff
CN105156787A (zh) * 2015-08-12 2015-12-16 安徽亿能机械有限公司 一种双腔室增压接头
CN108290297B (zh) 2015-09-08 2021-12-03 伯克希尔格雷股份有限公司 用于在自动系统中提供高流量真空采集的系统和方法
KR101699721B1 (ko) 2016-09-01 2017-02-13 (주)브이텍 진공 펌프 및 그 어레이
CN107859658B (zh) * 2017-10-27 2019-02-19 江苏大学 一种可调节开度的射流自吸系统
EP3706966A2 (fr) 2017-11-07 2020-09-16 Berkshire Grey, Inc. Systèmes et procédés permettant de fournir une pression de vide dynamique au niveau d'un effecteur d'extrémité à l'aide d'une source de vide unique
KR102194572B1 (ko) * 2019-01-08 2020-12-23 이효길 진공펌프
WO2020145628A1 (fr) * 2019-01-08 2020-07-16 이효길 Pompe à vide et récipient sous vide comportant une telle pompe
KR102344214B1 (ko) * 2021-05-18 2021-12-28 (주)브이텍 진공 이젝터 펌프

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB339402A (fr) * 1900-01-01
US1423198A (en) * 1922-07-18 Vacuum jet and system of operating the same
FR361049A (fr) * 1905-11-27 1906-05-14 Westinghouse Electric Corp Système de diffuseur perfectionné pour éjecteur
AT30001B (de) * 1905-12-07 1907-09-25 Westinghouse Sa Ejektor für zusammendrückbare Flüssigkeiten.
CH101872A (fr) * 1921-12-12 1923-11-01 Eugene Caron Virgile Procédé et appareil pour l'aspiration et la compression d'un fluide gazeux.
US2000762A (en) * 1933-10-26 1935-05-07 Gen Electric Fluid jet pump
FR842373A (fr) * 1938-02-11 1939-06-12 Robinetterie S A J Soc D Hydro-éjecteur à multiple effet
US2378425A (en) * 1938-02-22 1945-06-19 Murray Henry Lamont Ejector-condenser
US2211795A (en) * 1938-07-06 1940-08-20 Harry R Levy Attachment for internal combustion engines
US2275627A (en) * 1939-04-03 1942-03-10 Milford W Hartmann Pumping system
FR933502A (fr) * 1946-09-03 1948-04-23 Procédé de fabrication d'éjecteurs et éjecteurs obtenus selon ce procédé
BE532754A (fr) * 1953-10-23
DE953280C (de) * 1954-04-08 1956-11-29 Carl Metz Feuerwehrgeraetefabr Mehrstufiger Strahlapparat zum Entlueften von Pumpen, Behaeltern u. dgl.
US3445335A (en) * 1965-05-28 1969-05-20 Gen Electric Nuclear reactor system with jet pump flow means
DE1503706C3 (de) * 1965-06-19 1971-09-02 Siemens Ag Einer vakuumpumpe vorschaltbare strahlsaugeraggregate
RO55562A2 (fr) * 1971-05-28 1973-09-20
SE370765B (fr) * 1973-12-05 1974-10-28 Piab Ab
CA1080121A (fr) * 1977-12-19 1980-06-24 Edward A. Kempton Procede d'evacuation de l'eau des puits de gaz
SE427954B (sv) * 1979-06-15 1983-05-24 Piab Ab Ejektor

Also Published As

Publication number Publication date
US4466778A (en) 1984-08-21
EP0043566A1 (fr) 1982-01-13
DE3025525C2 (fr) 1987-05-21
DE3025525A1 (de) 1982-01-28
JPS5783699A (en) 1982-05-25
ATE7244T1 (de) 1984-05-15
JPS6329120B2 (fr) 1988-06-10

Similar Documents

Publication Publication Date Title
EP0043566B1 (fr) Appareil éjecteur
DE3540445C2 (fr)
DE69930406T2 (de) Filter mit filterpatrone und dichtungsanordnung
DE2457316A1 (de) Verfahren zur herstellung von ejektor-vorrichtungen
DE102007059530A1 (de) Vakuumsaugvorrichtung
DE19726281A1 (de) Fluidpumpe
EP2084451B1 (fr) Distributeur de lubrifiant
DE10061384B4 (de) Strahlpumpenanordnung zur Erzeugung von Vakuum sowie Verfahren zum Betreiben einer solchen Strahlpumpenanordnung
DE60217187T2 (de) Druckluftversorgungsgerät mit einem Verdichter
EP1257742A1 (fr) Pluralite d'unites d'obtention du vide
EP0626303B1 (fr) Aménagement de soupape
DE2546827A1 (de) Strahlpumpenduese
DE202017101250U1 (de) Pumpe sowie Schmiersystem
DE1625894B1 (de) Anordnung zum Verändern der Schmiermittelmengen eines zyklisch arbeitenden Schmiermittelverteilers
DE3933254A1 (de) Pneumatisches, mit unterdruck arbeitendes system
DE102016111100A1 (de) Ventileinrichtung zur Leistungssteigerung mehrstufiger Verdichtereinheiten
DE1920628A1 (de) Schraubenpumpe
DE102010029662A1 (de) Mit Druckluft betriebener Unterdruckerzeuger
EP0398078A2 (fr) Vibrateur compact à piston
EP1005615A1 (fr) Pompe regenerative a plusieurs etages
DE3147030C2 (de) Magnetventileinheit
DE102020109973A1 (de) Beschichtungsmittelpumpe, Beschichtungsanlage und zugehöriges Betriebsverfahren
DE4239798A1 (fr)
EP1582427B1 (fr) Ensemble hydraulique pour système de freinage
EP0249657B1 (fr) Dispositif comportant une pompe à palettes

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

AK Designated contracting states

Designated state(s): AT CH FR GB IT SE

17P Request for examination filed

Effective date: 19811126

ITF It: translation for a ep patent filed

Owner name: DOTT. GIOVANNI LECCE & C.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH FR GB IT LI SE

REF Corresponds to:

Ref document number: 7244

Country of ref document: AT

Date of ref document: 19840515

Kind code of ref document: T

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

26 Opposition filed

Opponent name: WALTER SARSTEDT KUNSTSTOFF-SPRITZGUSSWERK

Effective date: 19841231

R26 Opposition filed (corrected)

Opponent name: BACHMANN, PETER W.

Effective date: 19841231

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: BACHMANN, PETER W.

Effective date: 19841231

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19860315

ITTA It: last paid annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: THILO VOLKMANN

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

ITPR It: changes in ownership of a european patent

Owner name: SUCCESSIONE TESTAMENTARIA;THILO VOLKMANN

EAL Se: european patent in force in sweden

Ref document number: 81105170.5

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

Ref country code: AT

Payment date: 19980723

Year of fee payment: 18

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

Ref country code: CH

Payment date: 19980724

Year of fee payment: 18

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: 19990703

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

Ref country code: LI

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

Effective date: 19990731

Ref country code: CH

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

Effective date: 19990731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Payment date: 20000718

Year of fee payment: 20

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

Ref country code: SE

Payment date: 20000721

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20000821

Year of fee payment: 20

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 EXPIRATION OF PROTECTION

Effective date: 20010702

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

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20010704

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Effective date: 20010702

EUG Se: european patent has lapsed

Ref document number: 81105170.5