EP2035710B1 - Pompe - Google Patents

Pompe Download PDF

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Publication number
EP2035710B1
EP2035710B1 EP07722522A EP07722522A EP2035710B1 EP 2035710 B1 EP2035710 B1 EP 2035710B1 EP 07722522 A EP07722522 A EP 07722522A EP 07722522 A EP07722522 A EP 07722522A EP 2035710 B1 EP2035710 B1 EP 2035710B1
Authority
EP
European Patent Office
Prior art keywords
pump
valve
flange
sleeve
valve sleeve
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.)
Not-in-force
Application number
EP07722522A
Other languages
German (de)
English (en)
Other versions
EP2035710A1 (fr
Inventor
Markus Meitinger
Bernd Brunsch
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.)
ixetic Bad Homburg GmbH
Original Assignee
ixetic Bad Homburg 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 ixetic Bad Homburg GmbH filed Critical ixetic Bad Homburg GmbH
Publication of EP2035710A1 publication Critical patent/EP2035710A1/fr
Application granted granted Critical
Publication of EP2035710B1 publication Critical patent/EP2035710B1/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
    • 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
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • 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
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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

Definitions

  • the invention relates to a pump, in particular a power steering pump for motor vehicles, having a flow control valve and a valve sleeve, which has inflow openings to the flow control valve and a pressure connection to a hydraulic consumer.
  • a pump in particular power steering pump for motor vehicles, having a flow control valve and a valve sleeve having inflow openings for flow control valve and / or a passage opening for a throttle point and a pressure connection to a hydraulic consumer, wherein the valve sleeve as inserted into the pump housing insertion sleeve is executed and is axially positioned in the pump housing by a separate from the valve sleeve securing device.
  • valve sleeve as a plug-in sleeve has the advantage that the insert sleeve can be used precisely angle-oriented in the pump housing. Furthermore, no threading forces of the thread deforming effect on the valve sleeve and on the pump housing.
  • valve sleeve has at least one transverse bore, which is positioned to a discharge bore in the pump housing. The execution of the insert sleeve thus allows the
  • transverse bore Use only a single transverse bore, since it can be positioned to be mounted to the housing and therefore not a plurality of transverse bores are necessary as in a screw-in, so that a sufficient flow cross-section can be made to Abströmbohrung the pump housing.
  • a pump is preferred in which the securing device is represented by a flange attached to the pressure line.
  • the pressure line can also be mounted in an angle-oriented manner, since the flange predetermines the direction of the pressure line and certain positions in the engine compartment of a motor vehicle can therefore be maintained.
  • a pump according to the invention is characterized in that the flange is welded or soldered or pressed or screwed to the pressure line.
  • Another pump according to the invention is characterized in that the flange has a flat mounting surface. Furthermore, a pump is preferred in which the flange has an angled mounting surface. This has the advantage that the space for a fastening means of the flange can be variably fixed to the housing.
  • a pump is preferred in which the flange mounting surface is secured by at least one screw on the pump housing. After tightening the screw so that both the hydraulic line and the Ventileinsteckhülse is attached and secured in the axial direction of the Ventileinsteckhülse.
  • Another pump according to the invention is characterized in that the securing device is represented by a caulked flange in the pump housing.
  • a further advantage of the insertion sleeve is that the insertion sleeve can be centered relative to the valve piston, in particular if the insertion sleeve has a funnel-shaped valve seat for the valve piston, whereas a Einschraubpatrone by the possible offset between the thread and the funnel-shaped valve seat to a widening of the valve bore in Housing and can lead to an offset between the valve piston and the valve seat.
  • FIG. 1 is shown in cross section a power steering pump 1 with a pump rotation group and a valve assembly. From the rotation group, a so-called control plate 3 can be seen within the pump housing 5, wherein the control plate 3 contains suction kidney 7 and pressure kidney 9 for a double-stroke vane pump. The rotor and the blades of the vane pump are not shown here.
  • a valve assembly 11 is shown, which can perform the combination function of a flow control valve and a pilot operated pressure relief valve.
  • a valve piston 15 is slidably disposed in a valve bore 13 of the pump housing 5. The valve piston 15 bears with a sealing edge 17 against an approximately funnel-shaped seat of a valve sleeve 19.
  • the valve sleeve 19 in turn is mounted insertable in an enlarged part 21 of the valve bore 13.
  • the valve sleeve 19 also has a passage opening 23, in which a partially conical pin 25 of the valve piston 15 with the passage opening 23 is a variable throttle point for the consumer oil flow.
  • the consumer oil flow is supplied through the pressure line 27 to the consumer, for example, a hydraulic power steering.
  • the pressure line 27 is inserted in the region 29 of the valve sleeve 19 and additionally provided with a seal 31.
  • the pressure line 27 also has a flange 33, which is here, for example by means of a weld on the pressure line 27, fixed and secured with a screw 35 in the housing 5.
  • a discharge bore 37 leads into the valve region, where a corresponding inflow opening 39 of the valve sleeve 19 of the discharge bore 37 is juxtaposed in the housing.
  • the valve assembly in the upper part of the housing 5 further comprises a pressure relief pilot with a pilot valve sleeve 41, in which a pilot valve cone 43 is sealingly mounted in a valve seat 45 and is pressed by a spring 47 into the valve seat.
  • a pilot valve cone 43 is sealingly mounted in a valve seat 45 and is pressed by a spring 47 into the valve seat.
  • the valve plug 43 opens by lifting itself off from the seat 45, thereby producing a pilot-operated pressure limiting valve with the valve piston 15.
  • the valve piston 15 which is pressed by a spring 49 in the sealing edge 17, as a flow control valve piston and limits the flow flowing to the consumer to a certain value.
  • Such Stromregelventil- and pressure relief valve functions are well known in the art and therefore should not be further explained here.
  • the insertion sleeve 19 can be positioned to the discharge bore 37 and, if necessary, only a single inflow opening 39 is required, whereas in the prior art several inflow openings have to be used as outflow openings in order to realize the necessary hydraulic opening cross-sections. Furthermore, acting on the valve sleeve 19 and thus also on the receiving bore 21 no screwing, which can lead to deformations and decentrations in the prior art.
  • An additional advantage provides the pressure line 27 with the welded flange 33, which can be positioned in the appropriate necessary mounting position for the eventual space in the engine compartment of a motor vehicle and thus allows a positionally correct mounting without screwing the pressure line.
  • the axial fixation on the pump housing for both the pressure line 27 and the valve sleeve 19 is effected by the separate screw 35 between the flange 33 and the pump housing fifth
  • FIG. 2 is in supervision of the flange 33 from FIG. 1 exemplified.
  • the pressure line 27 is shown cut and secured by the weld 37 on the flange 33.
  • the flange 33 is fastened in the illustrated position on the pump housing not shown here by a single screw 35.
  • the position of the flange 33 to the course of the pressure line 27, as in FIG. 1 shown, is thus set for mounting in the vehicle.
  • a flange 51 is shown with an angled mounting surface 53.
  • another surface of the housing 5 can be used as the mating surface of the pressure line 27 for mounting mounting, if no space for a screw 55 and a corresponding thread in the housing 5 is present on the entrance level of the pressure line 27.
  • FIG. 4 another variant of a valve sleeve 60 is shown.
  • the Ventileinsteckhülse 60 in this case has a flange 62, softer in FIG. 4b with 4 caulking 64 is fixed in the housing 5.
  • a corresponding positioning of inlet openings of the valve sleeve 60 and the housing 5 and the discharge bore 37 is possible.
  • the flow control valve piston 15 and the corresponding spring 49 which presses the valve piston 15 against the valve sleeve 60, are shown.
  • a screw-in pressure line could also be screwed into an internal thread 66 of the valve sleeve 60.
  • the pressure line could be used as a push-in pressure line, such as a pressure line 27 in FIG FIG. 1 shown used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Power Steering Mechanism (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Fluid-Driven Valves (AREA)
  • Eye Examination Apparatus (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (9)

  1. Pompe, en particulier pompe d'assistance (1) pour des véhicules automobiles, comportant un régulateur de débit et une douille de régulateur, qui présente des ouvertures d'afflux (39) vers le régulateur de débit et/ou une ouverture de passage (23) pour un point d'étranglement et un raccord de tubulure de refoulement à un consommateur hydraulique, caractérisée en ce que la douille de régulateur est réalisée comme une douille enfichable (19, 60) enfichée dans le carter de pompe et est positionnée par un dispositif de blocage séparé de la douille de régulateur dans le sens axial dans le carter de pompe.
  2. Pompe selon la revendication 1, caractérisée en ce que la douille de régulateur (19, 60) présente au moins une ouverture d'afflux (39) qui est positionnée par rapport à un perçage d'écoulement (37) dans le carter de pompe (5).
  3. Pompe selon la revendication 1 ou 2, caractérisée en ce qu'une conduite de refoulement (27) est disposée de manière à pouvoir être enfichée ou vissée dans le côté de raccord de tubulure de refoulement de la douille de régulateur (19).
  4. Pompe selon les revendications 1 à 3, caractérisée en ce que le dispositif de blocage est constitué par une bride (33, 51) fixée sur la conduite de refoulement (27).
  5. Pompe selon les revendications 1 à 4, caractérisée en ce que la bride (33, 51) est soudée ou brasée ou enfoncée ou vissée sur la conduite de refoulement (27).
  6. Pompe selon la revendication 4 ou 5, caractérisée en ce que la bride (33) présente une surface de montage plane.
  7. Pompe selon la revendication 4 ou 5, caractérisée en ce que la bride (51) présente une surface de montage coudée.
  8. Pompe selon les revendications 4 à 7, caractérisée en ce que la surface de montage de bride est fixée par au moins une vis (35) sur le carter de pompe (5).
  9. Pompe selon les revendications 1 à 3, caractérisée en ce que le dispositif de blocage est constitué par une bride (62) rabattue dans le carter de pompe (5).
EP07722522A 2006-06-24 2007-06-12 Pompe Not-in-force EP2035710B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006029165 2006-06-24
PCT/DE2007/001020 WO2007147382A1 (fr) 2006-06-24 2007-06-12 Pompe

Publications (2)

Publication Number Publication Date
EP2035710A1 EP2035710A1 (fr) 2009-03-18
EP2035710B1 true EP2035710B1 (fr) 2011-03-16

Family

ID=38583066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722522A Not-in-force EP2035710B1 (fr) 2006-06-24 2007-06-12 Pompe

Country Status (8)

Country Link
US (1) US8235682B2 (fr)
EP (1) EP2035710B1 (fr)
JP (1) JP5114479B2 (fr)
CN (1) CN101479483B (fr)
AT (1) ATE502215T1 (fr)
DE (2) DE502007006732D1 (fr)
ES (1) ES2360144T3 (fr)
WO (1) WO2007147382A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428667A1 (de) * 1993-08-12 1995-02-16 Trw Inc Patronenanordnung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614266A (en) * 1969-12-24 1971-10-19 Ford Motor Co Compact positive displacement pump
US4276812A (en) * 1978-03-27 1981-07-07 Trw Inc. Power steering valve and method of making the same
US4483365A (en) * 1982-07-27 1984-11-20 Louis G. Basso, Jr. Interlocking modular valve mounting assembly
DE19751421A1 (de) * 1997-11-20 1999-05-27 Bosch Gmbh Robert Kolbenpumpe
DE19918126B4 (de) * 1999-04-22 2007-09-13 Robert Bosch Gmbh Kolbenpumpe
JP2001082619A (ja) * 1999-09-09 2001-03-30 Namiki Precision Jewel Co Ltd 逆止弁の保持構造
IT1308781B1 (it) * 1999-07-02 2002-01-10 Elasis Sistema Ricerca Fiat Pompa ad alta pressione munita di valvola di intercettazione amovibileper l'alimentazione di combustibile ad un motore a combustione interna
JP4574786B2 (ja) 2000-03-15 2010-11-04 株式会社ショーワ 可変容量型ポンプ
CN2477882Y (zh) * 2001-04-29 2002-02-20 山东工程机械厂 多功能充液阀
JP2005042674A (ja) * 2003-07-25 2005-02-17 Unisia Jkc Steering System Co Ltd 可変容量形ポンプ
BRPI0710876A2 (pt) * 2006-04-26 2012-09-18 Tyco Valves & Controls Inc válvula de montagem tendo uma manga de válvula unitária

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428667A1 (de) * 1993-08-12 1995-02-16 Trw Inc Patronenanordnung

Also Published As

Publication number Publication date
ES2360144T3 (es) 2011-06-01
JP2009541646A (ja) 2009-11-26
DE502007006732D1 (de) 2011-04-28
CN101479483A (zh) 2009-07-08
CN101479483B (zh) 2011-04-13
WO2007147382A1 (fr) 2007-12-27
EP2035710A1 (fr) 2009-03-18
US8235682B2 (en) 2012-08-07
JP5114479B2 (ja) 2013-01-09
DE112007001449A5 (de) 2009-04-02
US20090301586A1 (en) 2009-12-10
ATE502215T1 (de) 2011-04-15

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