EP1716357A1 - Soupape de regulation de pression pour un dispositif hydraulique et utilisation de cette soupape de regulation - Google Patents

Soupape de regulation de pression pour un dispositif hydraulique et utilisation de cette soupape de regulation

Info

Publication number
EP1716357A1
EP1716357A1 EP05707741A EP05707741A EP1716357A1 EP 1716357 A1 EP1716357 A1 EP 1716357A1 EP 05707741 A EP05707741 A EP 05707741A EP 05707741 A EP05707741 A EP 05707741A EP 1716357 A1 EP1716357 A1 EP 1716357A1
Authority
EP
European Patent Office
Prior art keywords
pressure control
control valve
valve according
valve body
valve
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.)
Withdrawn
Application number
EP05707741A
Other languages
German (de)
English (en)
Inventor
René Schmid
Alexander Sonntag
Hans-Dieter Wilhelm
Dirk MÖHRING
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.)
Continental Automotive GmbH
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1716357A1 publication Critical patent/EP1716357A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/54—Arrangement of fuel pressure regulators
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7927—Ball valves
    • Y10T137/7928—With follower

Definitions

  • the invention relates to a pressure control valve for a hydraulic device with a valve body pretensioned against a valve seat and with a spring element for pretensioning the valve body. Furthermore, the invention relates to an advantageous use of the pressure control valve.
  • Pressure regulating valves are often used in hydraulic devices for deriving excess pressure from a container or a line and are known from practice.
  • the spring element is arranged on the side of the lower pressure. If the pressure on the side of the valve body facing away from the spring element increases, the valve body is pressed away from the valve seat against the force of the spring element.
  • the pressure at which the known pressure control valve opens depends on the pressure difference on both sides of the valve body and the spring force.
  • a disadvantage of the known pressure control valve is that the valve body requires lateral guidance in order to be reliably returned to the valve seat by the spring element.
  • the lateral guidance is costly to manufacture and causes friction. Such friction leads to fluctuating opening and closing pressures and to a fluctuation in the characteristic curve over the pressure control Leakage current dissipated by the valve.
  • the known pressure control valve has particularly high noise emissions.
  • the invention is based on the problem of designing a pressure control valve of the type mentioned at the outset in such a way that it has a flat characteristic curve and has the lowest possible noise emissions. Furthermore, an advantageous use of the pressure control valve is to be created.
  • the first-mentioned problem is solved according to the invention in that the spring element is arranged behind the valve seat, as seen from the valve body, and in that the valve body and the spring element are connected to one another via a tension element.
  • the spring element is arranged on the side with the higher pressure and pulls the valve body against the valve seat. Lateral guides of the valve body are thus avoided and friction of the valve body is kept particularly low.
  • Pressure control valve a particularly flat characteristic.
  • the pressure control valve according to the invention does not require any housing parts on the side of the valve body and can therefore be produced particularly cost-effectively.
  • the pressure control valve according to the invention has high stability and, as a result, low noise emissions.
  • the pressure control valve according to the invention has a particularly high stability if the tension element is designed as a rod connecting the valve body with a holding body.
  • the spring element could, for example, be designed as a tension spring. To further increase the stability of the pressure control valve according to the invention, however, it contributes if the spring element is designed as a compression spring and is supported on a component connected to the valve seat and the holding body.
  • the installation of the pressure control valve according to the invention in the hydraulic device requires a particularly low outlay if the component having the valve seat, the valve body, the spring element and the tension element form a preassembled structural unit.
  • the component having the valve seat has latching hooks on its outer lateral surface.
  • the pressure control valve can be simply pushed into a plastic housing, for example, and is held by the latching hooks.
  • the lateral surface preferably has a series of latching hooks and thus has a fir tree profile.
  • the opening pressure of the pressure control valve according to the invention can be easily adjusted by plastic deformation of the holding body if the holding body is designed as a calibration disk and if the calibration disk is deformable on the valve body to adjust the spring force is designed.
  • a basic setting of the pressure control valve to the intended pressure is preferably carried out by using an appropriately dimensioned spring element.
  • the adjustment of the spring force and thus the opening pressure of the pressure control valve according to the invention requires particularly little effort if the position of the holding body on the tension element and / or the spring element is adjustable.
  • the valve body can be manufactured particularly inexpensively if the valve body is spherical. Furthermore, the valve body is held in a central position by the flow when the pressure control valve is open, and is reliably pulled against the valve seat by the spring element. The valve body is thus centered independently of the valve seat. Therefore, the pressure control valve according to the invention does not require guide elements for the valve body which are complex to manufacture.
  • the valve body has a guide element arranged at a distance from its contact surface on the valve seat and transversely to the direction of flow.
  • the guide element is one Flattening of the valve body. This leads to a break in the flow at the valve body.
  • the guide element is designed in a ring shape and is connected to the valve body.
  • an additional force is introduced into the valve body. This leads to a particularly flat characteristic curve of the pressure control valve according to the invention.
  • the guide element has a smaller outer diameter than the component having the valve seat. This allows the invention
  • a flow stall and thus a vortex formation in front of the valve seat can be easily avoided if the cross-section of the valve seat has an arcuate contour opposite the valve body. This creates a particularly small circumferential gap length when the pressure control valve is open. As a result, the negative pressure that occurs when the valve flows through is particularly small, which leads to a low tendency of the valve body to suck. In the best case, the valve body has a line contact with the valve seat.
  • the valve seat could, for example, be designed to be rubber-elastic. However, this leads to hysteresis when opening and closing the pressure control valve.
  • the pressure regulating valve according to the invention enables a particularly small regulating quantity if the valve seat is designed to be inelastic. Furthermore, the valve seat can hereby be made in one piece with the holding part. Furthermore, this design enables high surface pressures on the valve seat.
  • the assembly of the control valve according to the invention is particularly simple if the holding part is inserted in a sealing manner in a housing connection piece and if a control inlet is arranged in front of the spring element as seen in the flow direction.
  • the second problem mentioned is solved according to the invention by the use of the pressure control valve in a fuel supply system of a motor vehicle for limiting a pressure within a container located in a fuel tank.
  • FIG. 1 schematically shows a sectional view through a fuel supply system of a motor vehicle with a pressure control valve according to the invention
  • Fig. 4 shows a further embodiment of the pressure control valve according to the invention.
  • FIG. 1 shows a fuel tank 1 of a motor vehicle and an internal combustion engine 2.
  • a swirl pot 3 with a fuel pump 4 arranged in it is arranged in the fuel tank 1.
  • the fuel pump 4 delivers fuel from the swirl pot 3 to a fuel filter 5 designed as a ring filter and to a suction jet pump 6.
  • the suction jet pump 6 pumps fuel from the fuel tank 1 into the swirl pot 3.
  • a fuel line 7 leads from the fuel filter 5 to the internal combustion engine 2.
  • the fuel filter 5 has a pressure regulating valve 8 which opens at a predetermined pressure within the fuel filter 5 and allows fuel to flow into the swirl pot 3.
  • Figure 2 shows the pressure control valve 8 of Figure 1 in a sectional view.
  • the pressure control valve 8 has a housing 9 with a valve seat 10 and with a control inlet 11.
  • the control inlet 11 opens into a channel 12 leading to the valve seat 10.
  • the valve seat 10 is closed by a spherical valve body 13 ,
  • the valve seat 10 surrounds the spherical valve body 13 and has an arcuate contour opposite the valve body in cross section.
  • the valve body 13 is connected to a holding body 15 via a tension element 14.
  • One end of a spring element 16 is supported on the holding body 15. With the other end, the spring element 16 is supported on a shoulder 17 of the housing 9.
  • the holding body 15 is designed as a calibration disk and pressed with the tension element 14 designed as a rod.
  • the holding body 15 can first be attached to the tension element 14 in an intended position and then plastically deformed.
  • An annular guide element 18 is fastened on the valve body 13.
  • latching hooks 19 are arranged, with which the pressure control valve 8 can be fastened in the fuel filter 5 shown in FIG. 1.
  • the pressure control valve 8 is thus a structural unit consisting of housing 9 with valve seat 10, spring element 16 and
  • Valve body 13 is formed and can be pressed into a bore for assembly.
  • FIG. 3 shows a further embodiment of the pressure regulating valve 8 from FIG. 1 in a sectional illustration.
  • the pressure control valve 8 has a structural unit consisting of a valve Seat 20 having holding part 21, a valve body 22 and a tension element 24 connecting the valve body 22 with a spring element 23.
  • a holding body 25 for connection to the spring element 23 is arranged on the free end of the tension element 24.
  • the valve body 22 is spherical on its side facing the valve seat 20 and has on its side facing away from the valve seat 20 a flattened portion designed as a guide element 26 for guiding the flow.
  • the structural unit is clamped between a housing socket 27 and a union nut 28 screwed onto the housing socket 27.
  • FIG. 4 shows a further embodiment of the pressure regulating valve from FIG. 1, in which a holding part 29 is prestressed by a union nut 30 against a housing connection piece 31.
  • a tubular connection piece 32 is soldered to the housing piece 31.
  • the holding part 29 has a valve seat 33 against which a valve body 34 is biased.
  • a spring element 35 is supported on its end of the holding part 29 facing away from the valve seat 33.
  • the spring element 35 prestresses a holding body 36.
  • the holding body 36 is connected to the valve body 34 via a tension element 37.
  • the valve body 34 has a spherical shape and has an annular guide element 38.
  • FIG. 1 shows a further embodiment of the pressure regulating valve from FIG. 1, in which a holding part 29 is prestressed by a union nut 30 against a housing connection piece 31.
  • a tubular connection piece 32 is soldered to the housing piece 31.
  • the holding part 29 has a valve seat 33 against which a valve body 34 is biased.
  • a control inlet 39 is arranged in the housing connection 31 in front of the spring element 35.
  • a medium flowing through the pressure control valve is therefore guided through turns of the spring element 35.
  • the valve seat 33 encloses the spherical valve body 34 and has an arcuate contour in cross section.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Safety Valves (AREA)

Abstract

L'invention concerne une soupape de régulation de pression (8) pour un dispositif hydraulique, notamment une installation d'alimentation en carburant d'un véhicule moteur, cette soupape comportant un siège de soupape (10) situé entre un corps de soupape (13) et un élément ressort (16) pour précontraindre le corps de soupape (13) contre le siège de soupape (10). L'invention est caractérisée en ce que le corps de soupape (13) et l'élément ressort (16) sont reliés ensemble par un élément de traction (14), ce qui permet de guider le corps de soupape (10) de manière fiable contre le siège de soupape (10) sans élément de guidage supplémentaire.
EP05707741A 2004-02-17 2005-01-05 Soupape de regulation de pression pour un dispositif hydraulique et utilisation de cette soupape de regulation Withdrawn EP1716357A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007662A DE102004007662B4 (de) 2004-02-17 2004-02-17 Druckregelventil für eine hydraulische Einrichtung und Verwendung des Druckregelventils
PCT/EP2005/050036 WO2005080842A1 (fr) 2004-02-17 2005-01-05 Soupape de regulation de pression pour un dispositif hydraulique et utilisation de cette soupape de regulation

Publications (1)

Publication Number Publication Date
EP1716357A1 true EP1716357A1 (fr) 2006-11-02

Family

ID=34832719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05707741A Withdrawn EP1716357A1 (fr) 2004-02-17 2005-01-05 Soupape de regulation de pression pour un dispositif hydraulique et utilisation de cette soupape de regulation

Country Status (6)

Country Link
US (1) US20080202478A1 (fr)
EP (1) EP1716357A1 (fr)
KR (1) KR20060127948A (fr)
CN (1) CN1918415B (fr)
DE (1) DE102004007662B4 (fr)
WO (1) WO2005080842A1 (fr)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
EP1967775A1 (fr) * 2007-03-09 2008-09-10 Delphi Technologies, Inc. Soupape
US7926470B2 (en) * 2008-04-11 2011-04-19 Caterpillar Inc. Compact relief valve having damping functionality
DE102009004478B4 (de) * 2009-01-13 2014-08-14 Continental Automotive Gmbh Sitzventil sowie Verfahren zu dessen Herstellung
DE102014001306A1 (de) 2014-01-31 2015-08-06 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Ventileinrichtung und Kraftfahrzeug
CN108227771B (zh) * 2016-12-14 2020-10-16 中国航空工业集团公司北京长城计量测试技术研究所 一种可调节双变容积气体微压调节装置及方法

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See references of WO2005080842A1 *

Also Published As

Publication number Publication date
KR20060127948A (ko) 2006-12-13
WO2005080842A1 (fr) 2005-09-01
CN1918415A (zh) 2007-02-21
CN1918415B (zh) 2010-04-14
DE102004007662B4 (de) 2011-02-10
DE102004007662A1 (de) 2005-09-08
US20080202478A1 (en) 2008-08-28

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Inventor name: SONNTAG, ALEXANDER

Inventor name: SCHMID, RENE

Inventor name: WILHELM, HANS-DIETER

Inventor name: MOEHRING, DIRK

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