EP2385252B2 - Hydraulikaggregat - Google Patents

Hydraulikaggregat Download PDF

Info

Publication number
EP2385252B2
EP2385252B2 EP11173668.2A EP11173668A EP2385252B2 EP 2385252 B2 EP2385252 B2 EP 2385252B2 EP 11173668 A EP11173668 A EP 11173668A EP 2385252 B2 EP2385252 B2 EP 2385252B2
Authority
EP
European Patent Office
Prior art keywords
reservoir
housing
hydraulic unit
oil
unit according
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 - Lifetime
Application number
EP11173668.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2385252B1 (de
EP2385252A1 (de
Inventor
Günter Andres
Ulf Sittig
Bernd Thelen
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.)
Wagner Vermoegensverwaltungs GmbH and Co KG
Original Assignee
Wagner Vermoegensverwaltungs GmbH and Co KG
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=36283033&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2385252(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wagner Vermoegensverwaltungs GmbH and Co KG filed Critical Wagner Vermoegensverwaltungs GmbH and Co KG
Priority to PL11173668T priority Critical patent/PL2385252T3/pl
Publication of EP2385252A1 publication Critical patent/EP2385252A1/de
Publication of EP2385252B1 publication Critical patent/EP2385252B1/de
Application granted granted Critical
Publication of EP2385252B2 publication Critical patent/EP2385252B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • F04B23/021—Pumping installations or systems having reservoirs the pump being immersed in the reservoir

Definitions

  • the invention relates to a hydraulic unit with an oil-containing reservoir containing a motor and a pump driven by the motor.
  • a hydraulic unit has as a pressure generator to a pump, which sucks oil from a reservoir and feeds a consumer. From the consumer, a return line leads back to the reservoir.
  • hydraulic units containing the motor as a submersible motor, which is arranged in the reservoir and immersed in the hydraulic fluid. The heat generated in the engine is dissipated by the hydraulic oil.
  • Such a hydraulic unit which is also formed according to the preamble of claim 1, is in DE 200 07 554 U1 disclosed.
  • WO 03/087576 A discloses a hydraulic power pack in which the pump is disposed in a pump housing disposed in a reservoir, the pump drawing in oil by means of a suction port located on the underside of the pump housing to reduce the risk of intake of air.
  • the invention has for its object to provide a hydraulic unit, which is able to provide defined variable volume flows, without the risk of suction of air arises.
  • the hydraulic unit according to the present invention comprises an oil-containing reservoir and contains a multi-piston pump of distributed individual pumps, wherein the reservoir is connected to an at least partially filled with oil auxiliary reservoir, which the reservoir in case of
  • a multi-piston pump is a positive displacement pump that delivers a continuous volume flow that can be varied by changing the speed. If the motor is a synchronous motor, it is possible to change the size of the volume flow with a corresponding motor control depending on the load of the respective consumer.
  • a multiple-piston pump in which the individual pumps are arranged distributed in the reservoir, involves the risk that when the oil level drops, the suction inlet of at least one single pump is temporarily no longer immersed, thereby sucking in air. To achieve a defined volume flow, this must be prevented.
  • the auxiliary reservoir ensures that, with a momentarily high removal of oil from the reservoir, a refilling of the reservoir takes place, so that a complete immersion of the multiple piston pump is ensured.
  • the hydraulic unit according to the invention is particularly suitable for those cases in which consumers are connected with different absorption capacity. If a consumer is a hydraulic power screwdriver for turning screws, the load to be overcome by the hydraulic pressure is normally high, so that the delivery rate or the volume flow is small. The situation is different when a connected consumer is, for example, a piston-cylinder unit whose large-volume cylinder contains a piston which is moved against a small load. This results in a fast piston movement with the result of a large volume flow, The large volume flow causes a change in the oil level in the reservoir, it may happen that the upper individual pumps are temporarily no longer immersed. Such a condition is prevented by the auxiliary reservoir.
  • the invention is advantageously applicable to a hydraulic power unit in which the reservoir has a cross-sectional shape in which the width of the reservoir decreases towards the upper end.
  • a cross-sectional shape results, for example, in a reservoir which has a substantially round cross-section.
  • Such a reservoir favors a space-saving housing of motor and pump. It leads to a hydraulic unit of small volume and low weight, so that the hydraulic unit as portable unit can be formed.
  • there is the danger that in the upwardly narrowing cross-section of the upper region, which has a small volume would drain quickly with strong oil extraction without the action of the auxiliary reservoir.
  • the auxiliary reservoir is disposed on top of the reservoir, and may be formed either as an additional container or as a cavity fixedly connected to the reservoir but larger in width than the upper end of the reservoir.
  • the auxiliary reservoir is hermetically sealed above the oil level and a connecting line connects the auxiliary reservoir below the oil level with a ventilated additional tank.
  • the auxiliary reservoir and the additional tank form a communicating system.
  • the atmospheric pressure drives oil from the aerated additional tank into the auxiliary reservoir as soon as oil is removed from the reservoir from the auxiliary reservoir.
  • the additional tank increases the volume of the auxiliary reservoir, but on the other hand also spatially separated from the auxiliary reservoir.
  • the auxiliary reservoir is located above the reservoir, the auxiliary tank may be mounted below the reservoir. The additional tank can thus form a base for the housing of the reservoir.
  • the auxiliary reservoir can alternatively be used without an additional tank. In this case, a vent above the maximum oil level is required so that oil extraction from the reservoir is not affected.
  • the hydraulic unit has according to FIG. 1 a housing 10, which is a conventional motor housing an electric motor is.
  • the housing 10 has a cylindrical inner wall 11 and has on its outer side numerous longitudinal ribs 12, which form cooling fins.
  • the housing 10 forms a profile body made of an extruded profile. It is provided at one point of its circumference with an integrally formed longitudinal mounting plate 13 and on the diametrically opposite side is a mounting profile 14 for attachment of components to the housing.
  • the housing 10 contains the electric motor 15. This consists of a stator 16 and a rotor 17.
  • the motor is a permanent magnet-excited synchronous motor whose stator has a rotating field-generating stator winding 18.
  • the rotor 17 consists of the motor shaft 19 and permanent magnets 20 attached thereto.
  • the motor shaft 19 is mounted in bearings 21, 22 in the end walls (not shown) of the housing 10.
  • the stator winding 18 is enclosed with a hoop 25, which forms a closed ring and surrounds the coil winding.
  • spacers 26 are fixed, which protrude radially inward and keep the hoop 25 centered in the housing. In this way, the stator 16 is centered in the housing.
  • the spacers 26 are ledges extending longitudinally of the housing. At least three such ledges are provided, however, in the present embodiment 4.
  • the spacers 26 are shorter than the axial length of the space 27 so as to control the circulation of the hydraulic oil in the space 27 does not hinder.
  • the spacers 26 it is achieved that between the stator 16 and the inner surface 11 of the housing, the annular space 27 is present, which forms the main part of the volume of a reservoir 28.
  • the reservoir is limited by the housing 10.
  • the stator 16 and the rotor 17 are immersed in the hydraulic fluid.
  • the motor shaft 19 of the motor 15 has an eccentric ring 29 which drives a pump.
  • the pump is a multi-piston pump of a plurality of individual pumps, which are arranged in a star shape around the motor shaft 19 around, and whose pistons are driven by the eccentric ring 29 which is eccentrically fixed to the motor shaft.
  • Each of the individual pumps sucks in oil from the reservoir via a non-return valve and delivers it via another check valve to the pump outlet.
  • the multi-piston pump is a volumetric pump.
  • a fan 30 which has a housing 31 which projects radially beyond the housing 10.
  • a fan wheel which generates an air flow 32 along the ribs 12.
  • the fan is connected to the motor shaft 19 and is driven by this. Because of the effective heat dissipation results in a good cooling. Due to the low heating of the hydraulic unit also increases the efficiency. Due to the omission of a separate motor housing, the hydraulic unit is of compact design and of low weight.
  • FIG. 2 is the entire hydraulic unit shown. It can be seen the housing 10 with the longitudinal ribs 12. At one end there is the fan 30, which drives an air flow along the outside of the housing. At the opposite end of the housing is the pump part 40 with the pressure port 41 and the return port 42 on the front side. Furthermore, there is a manometer 43 attached, which indicates the pressure.
  • auxiliary tank 45 which consists of a closed box provided with a nozzle 46 for aeration and filling of hydraulic oil.
  • an auxiliary reservoir 47 is mounted, which is connected to the additional tank 45 via a connecting line 48.
  • the motor controller 50 On the auxiliary reservoir is located in a housing, the motor controller 50. This is connected to (not shown) electrical lines to the electric motor 15.
  • the pressure at the pressure port 41 is determined by a (not shown) pressure sensor. This pressure is a measure of the load of the connected consumer.
  • the engine controller 50 controls the electric motor 15 to reduce the engine speed at higher pressure. As soon as the pressure decreases, the engine speed increases again. In this way it is achieved that the power absorbed by the engine remains substantially constant and is largely independent of the respective load state of the consumer.
  • FIG. 3 shows a schematic representation of the arranged in the space 27 multiple-piston pump 60, which consists of several star-shaped arranged individual pumps 61.
  • Each of the individual pumps 61 is a piston pump whose piston rod 62 is pressed against the circumference of the eccentric ring 29 by a spring (not shown).
  • the piston rods 62 are cyclically actuated by the eccentric ring 29.
  • Each of the individual pumps 61 has an inlet and an outlet (not shown).
  • the outlets are connected to each other and guided to the pressure port 41.
  • the inlets are openings through which oil from the reservoir 28 is sucked into the single pump.
  • the oil that is supplied to the load connected to the hydraulic unit is removed from the reservoir 28. Due to the round shape of the housing 10, a decrease in oil leads to a rapid drop in level. As a result, it could happen that the inlets of the upper individual pumps 61 are no longer submerged. This is avoided by the auxiliary reservoir 47.
  • the auxiliary reservoir 47 has, as out FIG. 3 It can be seen, a width which is greater than that of the upper end of the reservoir 28. It is filled up to a level 65 with oil. Above the level 65, the auxiliary reservoir 47 is hermetically sealed, so that an enclosed air poister 66 is formed. The lower end of the auxiliary reservoir 47 is connected via a passage 67 to the space 27. The auxiliary reservoir 47 thus provides unthrottled oil for refilling the reservoir 28.
  • the connecting line 48 connects the additional tank 45 with the auxiliary reservoir 47. It leads below the level 65 into the auxiliary reservoir.
  • the connecting line is designed as a dip tube that ends just above the ground. If a negative pressure is created in the auxiliary reservoir 47 by the multiple piston pump 60, oil is forced up from the additional tank 45 through the connecting line 48. This is done by the atmospheric pressure, which enters through the nozzle 46 in the additional tank. In this way, a very large amount of oil for refilling the reservoir 28 is available.
  • auxiliary reservoir 47 it is also possible to operate the auxiliary reservoir 47 without the additional tank 45. In this case, aeration of the auxiliary reservoir is required.
  • FIG. 4 shows that at the auxiliary reservoir 47, a sight glass 68 is provided, through which the level can be inspected to festzusteflen a proper operation of the auxiliary reservoir.
  • a motor control 50 is mounted above the auxiliary reservoir 47. This consists of the required electrical components, which are not shown here.
  • the motor controller 50 has on its underside a plate 70 with numerous longitudinal cooling ribs 71.
  • the cooling fins 71 cover that part of the housing 10 which is released from the auxiliary reservoir 47.
  • the engine controller 50 is cantilevered over the auxiliary reservoir 47 via.
  • the cooling fins 71 are surrounded by an air guide housing 72 having a plurality of openings with fans 73 which blow cooling air into the air guide housing. Through openings 74, the cooling air exits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Transplanting Machines (AREA)
  • Reciprocating Pumps (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubricants (AREA)
  • Fluid-Pressure Circuits (AREA)
EP11173668.2A 2005-04-01 2006-03-23 Hydraulikaggregat Expired - Lifetime EP2385252B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11173668T PL2385252T3 (pl) 2005-04-01 2006-03-23 Agregat hydrauliczny

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005005165U DE202005005165U1 (de) 2005-04-01 2005-04-01 Hydraulikaggregat
EP06708810A EP1864019B1 (de) 2005-04-01 2006-03-23 Hydraulikaggregat

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP06708810.4 Division 2006-03-23
EP06708810A Division EP1864019B1 (de) 2005-04-01 2006-03-23 Hydraulikaggregat

Publications (3)

Publication Number Publication Date
EP2385252A1 EP2385252A1 (de) 2011-11-09
EP2385252B1 EP2385252B1 (de) 2013-10-16
EP2385252B2 true EP2385252B2 (de) 2017-10-11

Family

ID=36283033

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11173668.2A Expired - Lifetime EP2385252B2 (de) 2005-04-01 2006-03-23 Hydraulikaggregat
EP06708810A Expired - Lifetime EP1864019B1 (de) 2005-04-01 2006-03-23 Hydraulikaggregat

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06708810A Expired - Lifetime EP1864019B1 (de) 2005-04-01 2006-03-23 Hydraulikaggregat

Country Status (9)

Country Link
US (1) US8220380B2 (pl)
EP (2) EP2385252B2 (pl)
JP (1) JP4608575B2 (pl)
AT (1) ATE519034T1 (pl)
DE (1) DE202005005165U1 (pl)
DK (2) DK1864019T3 (pl)
ES (2) ES2369281T3 (pl)
PL (2) PL1864019T3 (pl)
WO (1) WO2006103199A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024184034A1 (de) * 2023-03-08 2024-09-12 Sew-Eurodrive Gmbh & Co Kg Elektromotor mit statorgehäuse

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007001537U1 (de) * 2007-02-02 2008-06-19 Wagner, Paul-Heinz Hydraulikaggregat für hydraulische Kraftschrauben
DE102009009958A1 (de) * 2009-02-23 2010-09-02 Hanning Elektro-Werke Gmbh & Co. Kg Zentrifuge
DE102013002187A1 (de) * 2013-02-06 2014-08-07 Juko Technik Gmbh Hydraulisches Pumpenaggregat
US20150275891A1 (en) * 2014-03-31 2015-10-01 Schlumberger Technology Corporation Integrated motor and pump assembly
DE102014116242A1 (de) * 2014-11-07 2016-05-12 Uts Biogastechnik Gmbh Rühreinrichtung für einen Fermenter einer Biogasanlage
WO2018213513A1 (en) 2017-05-16 2018-11-22 Actuant Corporation Hydraulic pump
US11958177B2 (en) 2018-09-07 2024-04-16 Milwaukee Electric Tool Corporation Hydraulic piston pump for a hydraulic tool
EP3653888B1 (en) 2018-11-13 2023-01-25 Enerpac Tool Group Corp. Hydraulic power system and method for controlling same

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627793A (en) † 1984-06-13 1986-12-09 Nippondenso Co., Ltd. Motor-driven radial plunger pump
DE3928950A1 (de) † 1989-08-31 1991-03-14 Wagner Gmbh J Membranpumpe
DE4231785A1 (de) † 1992-09-23 1994-03-24 Teves Gmbh Alfred Radialkolbenpumpe mit integriertem Resonator
EP0611887A1 (en) † 1992-08-06 1994-08-24 Daikin Industries, Limited Fluid pressure generation apparatus
DE29609701U1 (de) † 1996-05-31 1996-08-22 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Elektrohydraulisches Motorpumpenaggregat
DE29809935U1 (de) † 1998-06-03 1998-10-08 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Hydraulisches Motor-Pumpenaggregat
DE29906881U1 (de) † 1999-04-16 1999-07-01 Heilmeier & Weinlein Elektrohydraulisches Motorpumpenaggregat
DE19859340A1 (de) † 1998-12-22 2000-07-06 Mannesmann Vdo Ag Elektrohydraulische Einheit
DE202004006109U1 (de) † 2004-04-17 2004-06-17 Wagner, Paul-Heinz Hydraulikaggregat

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5615428Y2 (pl) * 1978-06-10 1981-04-10
JPS5617402U (pl) * 1979-07-19 1981-02-16
FR2463298A1 (fr) 1979-08-16 1981-02-20 Proprietaires Reunis Procede et dispositif d'aspiration par le vide de matieres boueuses avec, apres decantation, refoulement d'eau continu par pompe immergee
JPS5659301U (pl) * 1979-10-11 1981-05-21
JPS60558B2 (ja) * 1980-01-08 1985-01-08 株式会社極東機械製作所 水槽付ポンプ
JPS6088886A (ja) * 1983-10-21 1985-05-18 Hitachi Ltd 燃料供給ポンプ
US4568253A (en) * 1983-11-29 1986-02-04 Tecumseh Products Company Horizontal shaft oil pump
JPS6111471A (ja) * 1984-06-25 1986-01-18 Nippon Denso Co Ltd ラジアルプランジヤポンプ
JPH0250192U (pl) * 1988-10-04 1990-04-09
JPH0374157A (ja) * 1989-08-10 1991-03-28 Daikin Ind Ltd 油圧パワーユニット
IT1275518B (it) * 1995-07-12 1997-08-07 Faip Off Mecc Pompa per acqua ad alta pressione a doppio isolamento
DE29519941U1 (de) * 1995-12-15 1997-04-17 Wagner, Paul-Heinz, 53804 Much Hydraulisches Pumpenaggregat
US6078118A (en) * 1996-08-03 2000-06-20 Itt Manufacturing Enterprises Inc. Electric motor-pump assembly
DE29802441U1 (de) 1998-02-12 1998-05-07 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Hydraulisches Motorpumpenaggregat
JP4493061B2 (ja) * 1999-04-22 2010-06-30 油研工業株式会社 電動機内蔵油圧ポンプ
DE20007554U1 (de) * 2000-04-26 2000-08-10 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Motor-Pumpenaggregat
DE20205936U1 (de) 2002-04-16 2002-08-22 TRW Fahrwerksysteme GmbH & Co. KG, 40547 Düsseldorf Hydraulikpumpe, insbesondere für ein Servolenksystem
JP4300088B2 (ja) * 2003-09-29 2009-07-22 日機装株式会社 サブマージドポンプ
US7182583B2 (en) * 2004-02-06 2007-02-27 Sauer-Danfoss Inc. Electro-hydraulic power unit with a rotary cam hydraulic power unit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627793A (en) † 1984-06-13 1986-12-09 Nippondenso Co., Ltd. Motor-driven radial plunger pump
DE3928950A1 (de) † 1989-08-31 1991-03-14 Wagner Gmbh J Membranpumpe
EP0611887A1 (en) † 1992-08-06 1994-08-24 Daikin Industries, Limited Fluid pressure generation apparatus
DE4231785A1 (de) † 1992-09-23 1994-03-24 Teves Gmbh Alfred Radialkolbenpumpe mit integriertem Resonator
DE29609701U1 (de) † 1996-05-31 1996-08-22 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Elektrohydraulisches Motorpumpenaggregat
DE29809935U1 (de) † 1998-06-03 1998-10-08 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Hydraulisches Motor-Pumpenaggregat
DE19859340A1 (de) † 1998-12-22 2000-07-06 Mannesmann Vdo Ag Elektrohydraulische Einheit
DE29906881U1 (de) † 1999-04-16 1999-07-01 Heilmeier & Weinlein Elektrohydraulisches Motorpumpenaggregat
DE202004006109U1 (de) † 2004-04-17 2004-06-17 Wagner, Paul-Heinz Hydraulikaggregat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024184034A1 (de) * 2023-03-08 2024-09-12 Sew-Eurodrive Gmbh & Co Kg Elektromotor mit statorgehäuse

Also Published As

Publication number Publication date
US8220380B2 (en) 2012-07-17
JP2008534850A (ja) 2008-08-28
US20080302097A1 (en) 2008-12-11
EP2385252B1 (de) 2013-10-16
PL1864019T3 (pl) 2011-12-30
DK2385252T3 (da) 2014-01-13
PL2385252T3 (pl) 2014-03-31
EP1864019B1 (de) 2011-08-03
DE202005005165U1 (de) 2006-08-17
WO2006103199A1 (de) 2006-10-05
DK1864019T3 (da) 2011-11-07
ES2440945T3 (es) 2014-01-31
ES2369281T3 (es) 2011-11-29
EP1864019A1 (de) 2007-12-12
ATE519034T1 (de) 2011-08-15
JP4608575B2 (ja) 2011-01-12
EP2385252A1 (de) 2011-11-09

Similar Documents

Publication Publication Date Title
EP1150011B1 (de) Motor-Pumpenaggregat
EP1175562B1 (de) Kompaktes hydraulikaggregat
EP2385252B2 (de) Hydraulikaggregat
EP3374642B1 (de) Elektrische kfz-axial-flüssigkeitspumpe
DE19904926A1 (de) Pumpenaggregat für eine schlupfgeregelte, hydraulische Fahrzeugbremsanlage
DE102016010669A1 (de) Motor-Pumpenvorrichtung
DE112016005979B4 (de) Kompressor
EP3298241A1 (de) Ölgeschmierte drehschieber-vakuumpumpe mit ölabscheide- und wiederaufbereitungseinrichtung
DE1503540A1 (de) Gaskompressor
DD144289A1 (de) Regelbare hydraulische ventilsteuerung fuer hubkolbenkraft-oder arbeitsmaschinen
DE102007004187B4 (de) Regelbare Kühlmittelpumpe
EP1766239B1 (de) Einflügelvakuumpumpe
DE2420797C2 (de) Flüssigkeitsringpumpe
DE602005001152T2 (de) Pumpvorrichtung mit Tauchkolbenpumpe
DE102016108944A1 (de) Verstellbare Flügelzellenpumpe
DE69401600T2 (de) Vakuumpumpe
DE102008023674B4 (de) Schmiermittelversorgungsvorrichtung
DE102007055749A1 (de) Lieferpumpe
DE1628156C3 (de) Olfördereinrichtung fur einen ge kapselten Motorverdichter, insbesondere fui Kleinkaltemaschinen
DE621096C (de) Fluessigkeitspumpe mit einem schraubenfoermigen Laeufer
DE102012012735B3 (de) Piezoelektrisch angetriebene Hubkolbenpumpe mit Squiggle-Motor zum Einbau in autonome Funktionsstrukturen
EP1587209B1 (de) Hydraulikaggregat für einen Kraftschrauber
DE2319249C3 (de) Pumpe zur Förderung von Fett in Schmieranlagen
DE1958768A1 (de) Hydraulischer Antrieb,insbesondere fuer landwirtschaftliche Maschinen und Geraete,beispielsweise fuer den Entleerfoerderer des Korntanks von Maehdreschern
DE2409576C2 (de) Senkrechte Zentrifugaltauchpumpe

Legal Events

Date Code Title Description
AC Divisional application: reference to earlier application

Ref document number: 1864019

Country of ref document: EP

Kind code of ref document: P

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

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: 20120508

17Q First examination report despatched

Effective date: 20121203

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130619

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 1864019

Country of ref document: EP

Kind code of ref document: P

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

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 636639

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502006013288

Country of ref document: DE

Effective date: 20131212

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20140107

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2440945

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20140131

26 Opposition filed

Opponent name: JUKO TECHNIK GMBH

Effective date: 20140116

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502006013288

Country of ref document: DE

Effective date: 20140116

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

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: 20131016

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: 20131016

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: 20131016

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: 20140216

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: 20131016

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: 20131016

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: 20140217

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

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: 20131016

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

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: 20131016

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: 20131016

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: 20131016

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

Effective date: 20140323

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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 NON-PAYMENT OF DUE FEES

Effective date: 20140323

Ref country code: LI

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

Effective date: 20140331

Ref country code: CH

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

Effective date: 20140331

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: 20131016

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

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

Ref country code: NL

Payment date: 20160322

Year of fee payment: 11

Ref country code: ES

Payment date: 20160322

Year of fee payment: 11

Ref country code: DK

Payment date: 20160322

Year of fee payment: 11

Ref country code: TR

Payment date: 20160309

Year of fee payment: 11

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: 20131016

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: 20131016

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

Ref country code: PL

Payment date: 20160311

Year of fee payment: 11

Ref country code: FR

Payment date: 20160322

Year of fee payment: 11

Ref country code: AT

Payment date: 20160318

Year of fee payment: 11

Ref country code: GB

Payment date: 20160322

Year of fee payment: 11

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

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: 20140117

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

Effective date: 20140331

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: 20060323

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

Ref country code: IT

Payment date: 20160318

Year of fee payment: 11

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20171011

AK Designated contracting states

Kind code of ref document: B2

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: DE

Ref legal event code: R102

Ref document number: 502006013288

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20170331

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20170401

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 636639

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170323

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

Effective date: 20170323

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20171130

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: 20170331

Ref country code: AT

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

Effective date: 20170323

Ref country code: NL

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

Effective date: 20170401

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: 20170323

Ref country code: IT

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

Effective date: 20170323

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

Effective date: 20171011

Ref country code: DK

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

Effective date: 20170331

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: 20171011

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 NON-PAYMENT OF DUE FEES

Effective date: 20170323

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 NON-PAYMENT OF DUE FEES

Effective date: 20170323

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

Ref country code: DE

Payment date: 20250314

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 502006013288

Country of ref document: DE