EP2921702A3 - Engine-pump unit - Google Patents

Engine-pump unit Download PDF

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Publication number
EP2921702A3
EP2921702A3 EP15158367.1A EP15158367A EP2921702A3 EP 2921702 A3 EP2921702 A3 EP 2921702A3 EP 15158367 A EP15158367 A EP 15158367A EP 2921702 A3 EP2921702 A3 EP 2921702A3
Authority
EP
European Patent Office
Prior art keywords
channel
shaft
leakage
rotor
internal gear
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
EP15158367.1A
Other languages
German (de)
French (fr)
Other versions
EP2921702B1 (en
EP2921702A2 (en
Inventor
Reinhard Pippes
Dominik Ketterer
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.)
Eckerle Industrie Elektronik GmbH
Original Assignee
Eckerle Industrie Elektronik 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 Eckerle Industrie Elektronik GmbH filed Critical Eckerle Industrie Elektronik GmbH
Publication of EP2921702A2 publication Critical patent/EP2921702A2/en
Publication of EP2921702A3 publication Critical patent/EP2921702A3/en
Application granted granted Critical
Publication of EP2921702B1 publication Critical patent/EP2921702B1/en
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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/04—Draining
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0019—Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0046—Internal leakage control
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/008—Prime movers
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088—Lubrication
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/101—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with a crescent-shaped filler element, located between the inner and outer intermeshing members
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/023—Lubricant distribution through a hollow driving shaft
    • 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
    • F04C2240/00—Components
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

Die Erfindung betrifft eine Motor-Pumpen-Einheit mit einem mehrteiligen Gehäuse (25), die eine reversible Innenzahnradmaschine (21) und einen Elektromotor (22) mit einem Rotor (22.1) und einem Stator (22.2) umfasst, der über eine in dem Gehäuse (25) drehbar gelagerte Welle (23) mit der Innenzahnradmaschine (21) gekoppelt ist. Die Welle (23) erstreckt sich mit einem Wellenende von der Innenzahnradmaschine (21) weg axial durch den von der Welle (23) getragenen Rotor (22.1). Ein erster Anschlusskanal und ein zweiter Anschlusskanal münden in eine Arbeitskammer der Innenzahnradmaschine (21) und sind über in dem Gehäuse (25) angeordnete Rückschlagventile mit einer Leckagekanalschleife verbunden, die mit wenigstens einem mit der Arbeitskammer fluidverbundenen Leckagekanal fluidverbunden ist und die einen sich axial durch die Welle (23) erstreckenden Leckage-Wellenkanal und einen damit fluidverbundenen, sich axial durch den Rotor (22.1) erstreckenden Leckage-Rotorkanal und/oder einen zwischen dem Rotor (22.1) und dem Stator (22.2) ausgebildeten Leckage-Spaltkanal aufweist, der mit dem Leckage-Wellenkanal fluidverbunden ist.

Figure imgaf001
The invention relates to a motor-pump unit with a multi-part housing (25) comprising a reversible internal gear machine (21) and an electric motor (22) with a rotor (22.1) and a stator (22.2), one in the housing (25) rotatably mounted shaft (23) is coupled to the internal gear machine (21). The shaft (23) extends axially with a shaft end away from the internal gear machine (21) through the rotor (22.1) carried by the shaft (23). A first connection channel and a second connection channel open into a working chamber of the internal gear machine (21) and are connected via check valves arranged in the housing (25) to a leakage channel loop which is fluidically connected to at least one leakage channel fluidically connected to the working chamber and which extends axially through the Shaft (23) extending leakage shaft channel and a fluid-connected, axially through the rotor (22.1) extending leakage rotor channel and / or between the rotor (22.1) and the stator (22.2) formed leakage gap channel having the Leakage shaft channel is fluidly connected.
Figure imgaf001
EP15158367.1A 2014-03-21 2015-03-10 Engine-pump unit Active EP2921702B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014103959.9A DE102014103959A1 (en) 2014-03-21 2014-03-21 Motor-pump unit

Publications (3)

Publication Number Publication Date
EP2921702A2 EP2921702A2 (en) 2015-09-23
EP2921702A3 true EP2921702A3 (en) 2015-11-11
EP2921702B1 EP2921702B1 (en) 2021-06-16

Family

ID=52630279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15158367.1A Active EP2921702B1 (en) 2014-03-21 2015-03-10 Engine-pump unit

Country Status (3)

Country Link
US (1) US10060432B2 (en)
EP (1) EP2921702B1 (en)
DE (1) DE102014103959A1 (en)

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US11041900B2 (en) 2014-03-26 2021-06-22 Teradyne, Inc. Equi-resistant probe distribution for high-accuracy voltage measurements at the wafer level
CN105526160A (en) 2014-10-16 2016-04-27 德昌电机(深圳)有限公司 Gear pump
DE102015213387A1 (en) * 2015-07-16 2017-01-19 Robert Bosch Gmbh Rotary piston pump
JP6507998B2 (en) * 2015-11-03 2019-05-08 株式会社デンソー Fuel pump
US12385481B2 (en) * 2016-05-27 2025-08-12 Ghsp, Inc. Thermistor flow path
US11959481B2 (en) * 2016-05-27 2024-04-16 Ghsp, Inc. Thermistor flow path
US10914305B2 (en) * 2016-05-27 2021-02-09 Ghsp, Inc. Thermistor flow path
DE102016114540A1 (en) 2016-08-05 2018-02-08 Eckerle Industrie-Elektronik Gmbh Electrohydraulic machine with integrated sensor
CN109565223B (en) * 2016-08-09 2020-12-08 日本电产株式会社 drive
DE102016118163A1 (en) 2016-09-26 2018-03-29 Rausch & Pausch Gmbh SOLDERABLE CONNECTION DEVICE FOR HIGH FLOWS
DE102017127675B4 (en) * 2017-11-23 2023-03-23 HAWE Altenstadt Holding GmbH Hydraulic pressure supply unit
JP2019112977A (en) * 2017-12-21 2019-07-11 日本電産トーソク株式会社 Electric oil pump
JP2019112978A (en) * 2017-12-21 2019-07-11 日本電産トーソク株式会社 Electric oil pump
DE102018126442A1 (en) * 2018-10-24 2020-04-30 Thomas Magnete Gmbh Electro-hydraulic motor pump unit
DE102019111980A1 (en) 2019-05-08 2020-11-12 Rapa Automotive Gmbh & Co. Kg POWER SUPPLY UNIT FOR ACTIVE SUSPENSION SYSTEM
DE102019112050A1 (en) * 2019-05-08 2020-11-12 Schwäbische Hüttenwerke Automotive GmbH Feed pump with a leakage channel
CN110185609B (en) * 2019-06-18 2024-04-16 江苏德华泵业有限公司 High-pressure gear sewage pump
DE102019118384A1 (en) 2019-07-08 2021-01-14 Rapa Automotive Gmbh & Co. Kg MPE AXLE SET WITH A COMMON ECU
DE102020100595A1 (en) * 2020-01-13 2021-07-15 Schwäbische Hüttenwerke Automotive GmbH Pump-motor unit for a gearbox, for example
US11506200B1 (en) 2020-02-27 2022-11-22 Parker-Hannifin Corporation Hydraulic gear pump with radial pressure compensator
DE102020106796A1 (en) 2020-03-12 2021-09-16 Schwäbische Hüttenwerke Automotive GmbH Pump insert and pump arrangement with such a pump insert
TWI721846B (en) * 2020-03-31 2021-03-11 日益電機股份有限公司 Canned magnetic pump with leak detection function
DE102020116822A1 (en) 2020-06-25 2021-12-30 Schwäbische Hüttenwerke Automotive GmbH Axial pressure relief in plain bearings of pumps
CN112985999B (en) * 2021-02-09 2022-06-07 中铁隧道局集团有限公司 A grouting model test device and method for multi-field environment coupling
DE102021105032A1 (en) 2021-03-02 2022-09-08 Rapa Automotive Gmbh & Co. Kg HOUSING VERSION FOR MPE AXLE SET
DE102021203111A1 (en) * 2021-03-29 2022-09-29 Eckerle Technologies GmbH Internal gear fluid machine and method for manufacturing an internal gear fluid machine
US12234823B2 (en) * 2021-07-05 2025-02-25 Shimadzu Corporation Internal gear pump and internal gear motor
CN116163948A (en) * 2022-12-23 2023-05-26 南京威孚金宁有限公司 Double-rotation-direction internal gear pump
DE102023202578A1 (en) 2023-03-22 2024-09-26 Eckerle Technologies GmbH Fluid machine
EP4692551A1 (en) * 2023-03-31 2026-02-11 Zhejiang Sanhua Automotive Components Co., Ltd. Electric pump
CN118273947A (en) * 2023-12-29 2024-07-02 比亚迪股份有限公司 Internal gear pump, integrated motor pump and vehicle
JP2025144588A (en) * 2024-03-20 2025-10-03 豊田合成株式会社 Electric Liquid Pump

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US2469820A (en) * 1945-06-01 1949-05-10 Singer Mfg Co Dynamoelectric machine
DE1553026A1 (en) * 1965-07-30 1969-10-09 Eckerle Otto Electrically driven motor pump
EP2128446A2 (en) * 2008-05-26 2009-12-02 Kai Böhner Hydraulic unit
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US1819228A (en) * 1929-03-26 1931-08-18 Chicago Pneumatic Tool Co Rotor
US2469820A (en) * 1945-06-01 1949-05-10 Singer Mfg Co Dynamoelectric machine
DE1553026A1 (en) * 1965-07-30 1969-10-09 Eckerle Otto Electrically driven motor pump
EP2128446A2 (en) * 2008-05-26 2009-12-02 Kai Böhner Hydraulic unit
WO2013099505A1 (en) * 2011-12-28 2013-07-04 カヤバ工業株式会社 Electric oil pump

Also Published As

Publication number Publication date
EP2921702B1 (en) 2021-06-16
US10060432B2 (en) 2018-08-28
US20150267699A1 (en) 2015-09-24
DE102014103959A1 (en) 2015-09-24
EP2921702A2 (en) 2015-09-23

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