EP2633180A2 - Soupape régulatrice de pression - Google Patents

Soupape régulatrice de pression

Info

Publication number
EP2633180A2
EP2633180A2 EP11757879.9A EP11757879A EP2633180A2 EP 2633180 A2 EP2633180 A2 EP 2633180A2 EP 11757879 A EP11757879 A EP 11757879A EP 2633180 A2 EP2633180 A2 EP 2633180A2
Authority
EP
European Patent Office
Prior art keywords
armature
control valve
pressure control
pressure
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.)
Granted
Application number
EP11757879.9A
Other languages
German (de)
English (en)
Other versions
EP2633180B1 (fr
Inventor
Michele Musci
Helmar Gruhl
Paulo Jorge Ferreira Goncalves
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2633180A2 publication Critical patent/EP2633180A2/fr
Application granted granted Critical
Publication of EP2633180B1 publication Critical patent/EP2633180B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/005—Pressure relief valves
    • F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0073—Pressure balanced 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/023—Means for varying pressure in common rails
    • F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
    • F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails

Definitions

  • the invention relates to a pressure regulating valve according to the preamble of claim 1.
  • High-pressure accumulator (Common Rail) is the fuel system pressure in
  • High-pressure accumulator held substantially constant by means of a pressure control valve. As soon as the pressure in the high-pressure accumulator exceeds the system pressure, the pressure regulating valve opens, when the pressure has fallen below the system pressure, the pressure regulating valve closes. This ensures that the fuel injection into the cylinders of the internal combustion engine takes place under constant conditions. The fuel pressure drops in the
  • High-pressure accumulator under the vapor pressure of the air dissolved in the fuel, the air is exhausted, so that in addition to the liquid fuel and a gas phase in the high-pressure accumulator is included.
  • the gas contained in the high-pressure accumulator must be through the
  • High-pressure pump are compressed so that builds up in the high-pressure accumulator necessary for the operation pressure. Depending on the starting temperature of the internal combustion engine this several engine revolutions are necessary, causing startup delays occur. To a gassing of the
  • a pressure control valve in which at standstill of the internal combustion engine, the pressure regulating valve is open, that is, in that a connection from the high-pressure accumulator to a low-pressure line is released by a closing element.
  • the pressure regulating valve has a magnetic actuator, which is energized to close the closing element by an armature, the closing element in a valve seat.
  • Closing element is a spring element provided that against the
  • Magnetic force of the magnetic actuator acts and thereby moves the armature and an anchor bolt attached thereto in the opening direction, whereby the
  • Closing element lifts off the valve seat and a hydraulic
  • Low pressure line is made from a valve seat downstream valve chamber, from the radially laterally branching holes are provided, which open into a low-pressure line in the housing of the high-pressure accumulator. Disclosure of the invention
  • the pressure regulating valve according to the invention with the characterizing features of claim 1 has the advantage that the closing element performs a quick opening stroke and remains in a stable position during the open position. This is possible because both sides of the anchor are the same
  • the hydraulic return connection is formed by a connecting bore formed in the anchor bolt
  • Valve space and armature space running which is preferably designed as a blind hole and a side facing off transverse bore.
  • the hydraulic return connection is realized by at least one guided through the valve housing bore, the connected at one end to the valve space and at the other end to the anchor space.
  • the bore can open directly or indirectly into the valve chamber and into the armature space.
  • the hydraulic return connection is formed by at least one channel incorporated in the piston guide and / or in the anchor bolt.
  • the channel can be particularly easily at least one in the piston guide and / or in the anchor bolt
  • axially extending groove in the anchor bolt four evenly distributed over the circumference, axially extending grooves are formed, which form the axially extending channels, wherein between two adjacent grooves in each case a web is executed, which forms with its outer surface a guide surface within the piston guide.
  • Valve seat or on the closing element is reduced.
  • the outlet can also be connected directly downstream of the valve chamber.
  • FIG. 1 shows a sectional view through an inventive pressure control valve according to a first embodiment
  • FIG. 2 shows a sectional illustration through a pressure regulating valve according to the invention according to a second exemplary embodiment
  • FIG. 3 shows a sectional view through an inventive pressure control valve according to a third embodiment
  • FIG. 4 shows a sectional view through the pressure regulating valve according to the line II-II in Figure 3.
  • the pressure control valve 10 shown in Figures 1, 2 and 3 is inserted into a housing 11 of a high-pressure accumulator 12 of a fuel injection device by means of a threaded sleeve 13 in a receiving space 14.
  • the pressure control valve 10 closes or opens a hydraulic connection from
  • High-pressure accumulator 12 to a low pressure port 15 which is connected to a non-illustrated low-pressure line, which leads back to a fuel tank, also not shown.
  • the pressure regulating valve 10 has a solenoid actuator 17 and a valve element 18, wherein the solenoid actuator 17 actuates the valve element 18.
  • valve housing 20 which has a piston guide 22, a valve piece receptacle 23 and a connection-side receptacle 24.
  • valve element 18 is arranged, which comprises a valve piece 25 and a closing element 29.
  • the valve piece 25 limits a valve space 26 via a spacer ring.
  • a throttle bore 27 leads through the valve piece 25 and hydraulically connects the valve space 26 to the high-pressure accumulator 12.
  • a valve seat 28 is further formed for the closing element 29.
  • the valve chamber 26 is arranged downstream of the valve seat 28, wherein the closing element 29 is arranged within the valve chamber 26.
  • the magnetic actuator 17 In the terminal-side receptacle 24 is the magnetic actuator 17 with a
  • Magnetic coil 30 and an armature 31 is arranged, wherein the magnetic coil 30 acts on the armature 31.
  • the armature 31 is designed with an anchor plate 32 and an anchor bolt 33, wherein the anchor bolt 33 is fixedly connected to the anchor plate 32 and acts on the closing element 29.
  • the anchor bolt 33 is guided axially displaceably in the piston guide 22, wherein the piston guide 22 is guided axially through the valve housing 20.
  • the magnetic coil 33 forms with the surrounding housing part of the
  • Valve housing 20 has a magnetic core with a magnetic core end face 34 against which the armature plate 23 abuts when the magnet coil 30 is energized with an armature surface 36.
  • a connection piece 40 with a connection flange 41 is furthermore hydraulically tightly inserted by means of a sealing ring 42, the low-pressure connection 15 being designed in the connection flange 41.
  • an armature space 44 is formed, in which the armature plate 32 is disposed axially movable.
  • the armature space 44 is hydraulically connected in the present embodiment via an outlet throttle 45 with the low pressure port 15. But it is also conceivable, the valve chamber 26 with the
  • Spring chamber 46 which is incorporated in the magnetic core end face 34 and a compression spring 47 receives, which acts in the opening direction of the closing element 29 on the magenta tank 31.
  • the connecting piece 40 is by means of an encapsulation 48, the electrical plug contacts 49 for the solenoid 30 contains on
  • Valve housing 20 is held.
  • Anchor space 44 are the two opposite end faces of the anchor plate 32 within the armature space 44 and the anchor bolt 33 within the
  • Substantially pressure-balanced is axially movable.
  • the blind bore 51 opens at an end face 53 in the armature space 44.
  • the transverse bore 52 opens laterally into the valve chamber 26.
  • Return connection 50 through a through the valve housing 20, for example realized axially guided bore 55, which opens at one end into the valve chamber 26 and the other end of the magnetic core end face 34 in the armature space 44.
  • the bore 55 can also open into the other end of the spring chamber 46, which in turn is hydraulically connected to the armature space 44.
  • Return connection 50 executed by at least one incorporated into the piston guide 22 and / or in the anchor bolt 33 channel, which is formed according to Figure 3 of a machined into the anchor bolt 33, axially extending groove 61.
  • the channel is embodied by four grooves 63 incorporated in the anchor bolt 33, which run on the surface of the anchor bolt 33 and thereby via the piston guide 22 or the anchor bolt 33, the hydraulic return connection 50 between the valve chamber 26 via the spring chamber 46 to the armature space 44 out.
  • the four axially extending grooves 63 are arranged distributed uniformly over the circumference of the valve piston 33. Between two adjacent grooves 63, a web 64 is in each case designed, which forms with its outer surface 65 a guide surface within the piston guide 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne une soupape régulatrice de pression (10) permettant d'ouvrir ou de fermer un orifice de sortie d'un accumulateur haute pression (12) pour un dispositif d'injection d'un moteur à combustion interne. Cette soupape régulatrice de pression (10) présente un élément de soupape (18) qui peut être actionné par un actionneur magnétique (17). Cet actionneur magnétique (17) agit avec un induit (31) sur un élément obturateur (29) qui permet d'établir ou d'interrompre une liaison hydraulique entre l'accumulateur haute pression (12) et une chambre de soupape (26), ladite chambre de soupape (26) étant reliée hydrauliquement à un raccord basse pression (15). L'induit (31) présente une plaque d'induit (32) et un axe d'induit (33), la plaque d'induit (32) étant disposée mobile dans une chambre d'induit (44). La chambre d'induit (44) est reliée hydrauliquement à la chambre de soupape (26) par une liaison de retour (50).
EP11757879.9A 2010-10-29 2011-09-20 Soupape régulatrice de pression Not-in-force EP2633180B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010043097A DE102010043097A1 (de) 2010-10-29 2010-10-29 Druckregelventil
PCT/EP2011/066316 WO2012055639A2 (fr) 2010-10-29 2011-09-20 Soupape régulatrice de pression

Publications (2)

Publication Number Publication Date
EP2633180A2 true EP2633180A2 (fr) 2013-09-04
EP2633180B1 EP2633180B1 (fr) 2015-05-27

Family

ID=44653337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11757879.9A Not-in-force EP2633180B1 (fr) 2010-10-29 2011-09-20 Soupape régulatrice de pression

Country Status (6)

Country Link
US (1) US20130214186A1 (fr)
EP (1) EP2633180B1 (fr)
JP (1) JP5882344B2 (fr)
CN (1) CN103180601B (fr)
DE (1) DE102010043097A1 (fr)
WO (1) WO2012055639A2 (fr)

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
FR2973076A1 (fr) * 2011-03-25 2012-09-28 Bosch Gmbh Robert Regulateur de pression, dispositif d'injection diesel comportant un tel regulateur, moteur diesel comportant un tel dispositif d'injection et vehicule comportant un tel moteur
FR2988140B1 (fr) * 2012-03-15 2016-02-05 Bosch Gmbh Robert Soupape de regulation de pression d'accumulateur haute pression de carburant de moteur a combustion interne
DE102012209226A1 (de) 2012-05-31 2013-12-05 Robert Bosch Gmbh Druckregelventil
DE102013219418A1 (de) * 2013-06-21 2014-12-24 Robert Bosch Gmbh Druckregelventil
DE102013211937A1 (de) * 2013-06-24 2014-12-24 Robert Bosch Gmbh Druckregelventil mit Umlenkkappe
DE102013222483A1 (de) 2013-11-06 2015-05-07 Robert Bosch Gmbh Druckregelventil
DE102013224395A1 (de) * 2013-11-28 2015-05-28 Robert Bosch Gmbh Magnetventil
DE102014225323A1 (de) 2014-12-09 2016-06-09 Robert Bosch Gmbh Schalt- oder Druckregelventil für ein Karftstoffeinspritzsystem

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DE3927932A1 (de) * 1989-08-24 1991-02-28 Bosch Gmbh Robert Elektromagnetisch betaetigbares kraftstoffeinspritzventil
DE4137786C2 (de) * 1991-11-16 1999-03-25 Bosch Gmbh Robert Elektromagnetisch betätigbares Einspritzventil
DE4342398C1 (de) * 1993-12-13 1995-04-20 Daimler Benz Ag Druckausgeglichenes Magnetventil
JP3742996B2 (ja) * 1996-03-25 2006-02-08 株式会社デンソー 燃料供給装置
FR2783890B1 (fr) * 1998-09-29 2000-12-01 Eaton Corp Electrovanne de regulation de pression
JP2001082283A (ja) * 1999-09-20 2001-03-27 Hitachi Ltd 電磁式燃料噴射弁
US6454191B1 (en) * 2000-01-10 2002-09-24 Delphi Technologies, Inc. Electromagnetic fuel injector dampening device
DE10039077A1 (de) * 2000-08-10 2002-02-21 Bosch Gmbh Robert Brennstoffeinspritzventil
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DE102004002964A1 (de) 2004-01-21 2005-08-11 Robert Bosch Gmbh Druckregelventil für einen Hochdruckspeicher einer Verbrennungskraftmaschine
JP2006299855A (ja) * 2005-04-18 2006-11-02 Denso Corp 流体制御弁
JP4483829B2 (ja) * 2005-07-29 2010-06-16 株式会社デンソー 電磁アクチュエータ
US7717400B2 (en) * 2007-04-19 2010-05-18 Aisan Kogyo Kabushiki Kaisha Fluid pressure regulating device
JP2009103050A (ja) * 2007-10-23 2009-05-14 Denso Corp 電磁駆動装置
DE102008041362A1 (de) * 2008-08-20 2010-02-25 Robert Bosch Gmbh Vorrichtung zur Versorgung einer Verbrennungskraftmaschine mit Treibstoff
JP2011132941A (ja) * 2009-11-26 2011-07-07 Nippon Soken Inc 圧力制御弁

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Title
See references of WO2012055639A2 *

Also Published As

Publication number Publication date
WO2012055639A2 (fr) 2012-05-03
US20130214186A1 (en) 2013-08-22
EP2633180B1 (fr) 2015-05-27
WO2012055639A3 (fr) 2012-06-21
JP5882344B2 (ja) 2016-03-09
CN103180601B (zh) 2016-02-24
JP2013540947A (ja) 2013-11-07
CN103180601A (zh) 2013-06-26
DE102010043097A1 (de) 2012-05-03

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