EP1857674A1 - Agrégat hydrophile - Google Patents

Agrégat hydrophile Download PDF

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Publication number
EP1857674A1
EP1857674A1 EP20070007284 EP07007284A EP1857674A1 EP 1857674 A1 EP1857674 A1 EP 1857674A1 EP 20070007284 EP20070007284 EP 20070007284 EP 07007284 A EP07007284 A EP 07007284A EP 1857674 A1 EP1857674 A1 EP 1857674A1
Authority
EP
European Patent Office
Prior art keywords
valve block
housing
hydraulic
tank housing
tank
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
EP20070007284
Other languages
German (de)
English (en)
Other versions
EP1857674B1 (fr
Inventor
Günter Dipl.-Ing. Hellmann
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.)
Jungheinrich AG
Original Assignee
Jungheinrich AG
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 Jungheinrich AG filed Critical Jungheinrich AG
Publication of EP1857674A1 publication Critical patent/EP1857674A1/fr
Application granted granted Critical
Publication of EP1857674B1 publication Critical patent/EP1857674B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
    • F04B23/026—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir a pump-side forming a wall of the reservoir
    • 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
    • F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
    • F04B23/028—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir the pump being mounted on top of the reservoir
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/86035—Combined with fluid receiver
    • Y10T137/86059—Hydraulic power unit

Definitions

  • the invention relates to a hydraulic unit according to the preamble of patent claim 1.
  • Hydraulic power units usually consist of a drive motor, a pump, a hydraulic tank and a valve block.
  • the drive motor is usually an electric motor.
  • the hydraulic power pack must be compact. It is therefore already known to immerse the hydraulic pump in the hydraulic medium within a tank housing and to connect the tank housing with the valve block.
  • the stator housing of the motor is flanged to the valve block.
  • the shaft of the electric motor extends through the valve block to the pump to drive it.
  • the valve block contains bores for receiving valves in order to implement a hydraulic circuit for supplying at least one hydraulic consumer.
  • Such compact hydraulic units are used in particular in industrial trucks, which provide little space available.
  • the hydraulic pump supplies e.g. a lifting cylinder, a hydraulic steering or other consumers.
  • the invention has for its object to provide a hydraulic unit, in which the production costs can be significantly reduced.
  • valve block and the stator housing are integrally formed, e.g. cast steel.
  • the stator housing needs no flange to be screwed to the valve block.
  • the processing of such a flange and the valve block is saved for the purpose of intimate connection of the two parts. It is therefore possible to create the hydraulic unit with a significantly low manufacturing and assembly costs.
  • valve block on the side facing the tank housing on an axial annular collar which fits approximately fitting into the interior of the tank housing, while the valve block facing the end of the tank housing engages in a recess on the outside of the annular collar, wherein the outer sides of stator and tank housing are approximately aligned.
  • the single figure shows hinted a hydraulic unit according to the invention.
  • a stator housing 10 is shown for an electric motor, not shown.
  • the stator housing 10 is closed at the upper end by a cover 12, are provided to the terminals 14, 16 for the power supply.
  • the stator housing 10 is formed integrally with a valve block 18.
  • a valve housing is shown at 20, which engages via an opening in the valve block 18.
  • the valve 20 is controllable and has a connection possibility for a supply line to a consumer.
  • annular collar 22 is formed on this. Its outer diameter is slightly smaller than the outer diameter of the valve block 18, so that a recess is provided. In this recess engages a thickened edge 24 of a tank housing 26 a.
  • the tank housing 26 is formed, for example, of plastic material. A connection of the two parts takes place with Help a strap that is placed around the thickened end 24 and tensioned. This is not shown in the drawing.
  • a pump is arranged, which is not shown.
  • the pump draws hydraulic medium from the tank housing 26 from the lower region and conveys the medium to the valve 20.
  • the shaft, not shown, of the electric motor, not shown extends through the valve block 18 through the pump, not shown, to drive them.
  • the return of the hydraulic medium to the tank 26 via a filter via which a filter cartridge is insertable and can be determined by means of a screw cap 30.
  • the filter cartridge is used to filter impurities in the hydraulic fluid in the return flow from the consumer to the tank 26th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP20070007284 2006-05-10 2007-04-07 Agrégat hydrophile Not-in-force EP1857674B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610021682 DE102006021682A1 (de) 2006-05-10 2006-05-10 Hydraulikaggregat

Publications (2)

Publication Number Publication Date
EP1857674A1 true EP1857674A1 (fr) 2007-11-21
EP1857674B1 EP1857674B1 (fr) 2009-12-09

Family

ID=38543896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070007284 Not-in-force EP1857674B1 (fr) 2006-05-10 2007-04-07 Agrégat hydrophile

Country Status (4)

Country Link
US (1) US20070261741A1 (fr)
EP (1) EP1857674B1 (fr)
CN (1) CN101070830B (fr)
DE (2) DE102006021682A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010004650A1 (de) * 2010-01-13 2011-07-14 Jungheinrich AG, 22047 Hydraulikaggregat für Flurförderzeuge
DE102010062936A1 (de) * 2010-12-13 2012-06-14 Jungheinrich Aktiengesellschaft Hydraulikaggregat
US10317855B2 (en) * 2016-05-31 2019-06-11 Yokogawa Electric Corporation Method for detection of diagnosing control valve stiction
DE102016114635B4 (de) * 2016-08-08 2018-09-20 Hoerbiger Automatisierungstechnik Holding Gmbh Bearbeitungsmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199356A5 (fr) * 1972-09-09 1974-04-05 Frankl & Kirchner
DE29519941U1 (de) * 1995-12-15 1997-04-17 Wagner, Paul-Heinz, 53804 Much Hydraulisches Pumpenaggregat
EP1008750A1 (fr) * 1998-12-07 2000-06-14 Robert Bosch Gmbh Unité hydraulique compacte
EP1106827A2 (fr) * 1999-12-07 2001-06-13 Hoerbiger Hydraulik GmbH Ensemble de pompage hydraulique
EP1231385A1 (fr) * 2001-02-07 2002-08-14 Robert Bosch Gmbh Dispositif d'alimentation en huile hydraulique, huile lubrifiante ou analogues

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515167A (en) * 1968-08-22 1970-06-02 Ernest J Svenson Hydraulic and electrical power unit
DE3839689C2 (de) * 1988-11-24 1998-03-19 Rudolf Pickel Baukastenartig aufbaubares, elektromotorisch angetriebenes hydraulisches Pumpenaggregat
US5620309A (en) * 1995-01-27 1997-04-15 Todden; Terry J. Fluid pump priming system
DE29809935U1 (de) * 1998-06-03 1998-10-08 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Hydraulisches Motor-Pumpenaggregat
GB9916947D0 (en) * 1999-07-21 1999-09-22 Smiths Industries Plc Hydraulic units
US6435846B1 (en) * 1999-10-22 2002-08-20 Wagner Spray Tech Corporation Piston pump having housing with a pump housing and a pump assembly drive housing formed therein
DE20007554U1 (de) * 2000-04-26 2000-08-10 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Motor-Pumpenaggregat
DE10028957C2 (de) * 2000-06-16 2002-07-11 Lukas Hydraulik Gmbh & Co Kg Tragbare Hydraulikpumpeneinheit
ITRE20020002A1 (it) * 2002-01-11 2003-07-11 Bucher Hydraulics S P A Gruppo valvolare complesso per circuiti idraulici, in particolare perl'unita' di potenza

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199356A5 (fr) * 1972-09-09 1974-04-05 Frankl & Kirchner
DE29519941U1 (de) * 1995-12-15 1997-04-17 Wagner, Paul-Heinz, 53804 Much Hydraulisches Pumpenaggregat
EP1008750A1 (fr) * 1998-12-07 2000-06-14 Robert Bosch Gmbh Unité hydraulique compacte
EP1106827A2 (fr) * 1999-12-07 2001-06-13 Hoerbiger Hydraulik GmbH Ensemble de pompage hydraulique
EP1231385A1 (fr) * 2001-02-07 2002-08-14 Robert Bosch Gmbh Dispositif d'alimentation en huile hydraulique, huile lubrifiante ou analogues

Also Published As

Publication number Publication date
US20070261741A1 (en) 2007-11-15
DE102006021682A1 (de) 2007-11-15
CN101070830B (zh) 2012-05-30
DE502007002235D1 (de) 2010-01-21
CN101070830A (zh) 2007-11-14
EP1857674B1 (fr) 2009-12-09

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