Classifications

• • 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
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D41/00—Electrical control of supply of combustible mixture or its constituents
  • F02D41/30—Controlling fuel injection
  • F02D41/38—Controlling fuel injection of the high pressure type
  • F02D41/3809—Common rail control systems
  • F02D41/3836—Controlling the fuel pressure
  • F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief 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
  • F02M63/0033—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
  • F02M63/005—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
  • F02M63/02—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

Definitions

• the invention relates to a pressure control system and a pressure regulating valve for regulating a pressure of a fluid in a pressure circuit.
• injection systems For injecting fuel into the combustion chambers of an internal combustion engine, in particular a diesel internal combustion engine, injection systems are used, which have been designed more and more in recent years as so-called “common rail systems.” These injectors are arranged in the combustion chambers a common fuel accumulator, the common rail is supplied with fuel. the fuel to be injected lies in the fuel reservoir at a pressure of up to 2000 bar before. Such injection systems place high demands on the accuracy of the injection of the fuel into the combustion chambers of the internal combustion ⁇ machine required injection pressure.
• the object of the invention is to provide a pressure control system and a pressure control valve for controlling a pressure of a fluid in a pressure circuit, which allow a simple construction of the pressure control valve with a small number of compo ⁇ len with a reliable and precise pressure control by the valve.
• the invention is characterized by a pressure control system, comprising a pressure regulating valve for regulating a pressure of a fluid in a pressure circuit, comprising a valve housing having a longitudinal axis in which a Ventilgeophuseaus strictlyung is arranged with a fluid inlet opening and at least one fluid outlet opening, wherein the Fluid inlet opening with the pressure circuit is hydraulically coupled, in the VentilgeophuseausEnglishung axially movably arranged closing body with a sealing element, wherein the sealing element in a closed position of the closing ⁇ body fluid-tight manner with a sealing seat of the valve housing recess and cooperates in an open position of the
• Closing body releases the fluid flow from the fluid inlet opening to the fluid outlet opening, and a
• Actuator unit which is designed to act on the closing body, and a control unit.
• the control unit is designed to control the actuator unit, such that the closing body assumes a predetermined open position for reducing a pressure of the fluid in the pressure ⁇ circle.
• the closing body assumes the predetermined open position for reducing the pressure of the fluid in the pressure circuit is a ⁇ inde pendent of how much the pressure of the fluid to be reduced in the pressure circuit.
• it is at least one, again preferably exactly one predetermined open position, which makes the control of the pressure control system very simple.
• Such a pressure control system has the advantage that the pressure control can be done in a clocked manner by the pressure control valve is operated alternately in its, preferably exactly one open position and its closed position. This can be avoided that current is applied to the actuator unit permanently. Thus, the expended for the actuator unit energy can be kept small. Furthermore, such a pressure regulating valve can be constructed simply and with few components.
• the open ⁇ position of the closing body is maintained until a certain volume of fluid is removed from the pressure circuit.
• the number of open positions occupied by the closing body per unit of time can also be changed, for example increased, if a great deal of pressure surplus is to be reduced.
• Actuator on an anchor which is coupled to the closing body.
• the valve housing points to one of the
• valve housing Fluid inlet and the fluid outlet opening a distal end, the valve housing fluid-tightly on final be ⁇ cherförmigen section and the anchor in the becherförmi- gene section is arranged.
• This has the advantage that the valve housing, the armature and the closing body can be arranged in an assembly. Furthermore, moving parts of the actuator, with the closing body be disposed within the valve housing together ⁇ men describe. Since ⁇ with the valve housing may be formed very fluid-tight.
• the actuator unit has a magnetic coil, and the magnetic coil is arranged in a housing which is formed by the valve housing sepa ⁇ rat.
• the housing with the magnetic coil relative to the valve housing can be arranged to be displaceable or rotatable about the longitudinal axis.
• the solenoid can be aligned with respect to the valve housing in the desired manner.
• a very good function of the electromagnetic actuator unit can be achieved.
• the invention is characterized by a pressure regulating valve for regulating a pressure of a fluid in a pressure circuit, which has a valve housing with a longitudinal axis, in which a valve housing recess is arranged with a fluid inlet opening and at least one fluid outlet opening, wherein the fluid inlet opening Hydraulically coupled to the pressure circuit, a valve body axially movable arranged in the valve body recess with a sealing element, wherein the sealing element in a closed position of the closing body with a sealing seat of Ventilgephaseaus strictlyung cooperates fluid-tight and releases the fluid flow from the fluid inlet opening to the fluid outlet opening in an open position of the closing body , and an electromagnetic actuator unit which is formed from ⁇ for acting on the closing body, wherein the Actuator having an armature which is coupled to the Sch Anlagenkör ⁇ by.
• the valve housing At a distal end of the fluid inlet opening and the fluid outlet opening, the valve housing has a be ⁇ cherförmigen portion which closes off the valve housing in a fluid-tight manner, and the armature is arranged in the cup-shaped section.
• the actuator unit has a magnetic coil, and the magnetic coil is arranged in a housing which is formed separately from the valve housing.
• the figure shows a pressure control system with a pressure control valve 10 shown in longitudinal section and a control ⁇ unit 70th
• the pressure regulating valve 10 comprises a valve housing 12 with egg ⁇ ner longitudinal axis L.
• the valve housing 12 is a
• Valve housing recess 14 is arranged.
• Valve housing recess 14 has a wall 16.
• a closing body 18 is arranged in the valve housing recess 14.
• the closing body 18 can axially in the
• Valve housing recess 14 are moved. At one end of the closing body 18, a sealing element 20 is formed.
• the sealing element 20 is preferably formed as a hemisphere.
• the valve housing recess 14 has a fluid inlet opening 24 and a fluid outlet opening 26.
• the pressure control valve 10 has a seat body 28.
• the Wegkör ⁇ per 28 is preferably formed separately from the valve housing 12 ⁇ .
• the Ventilgeophu ⁇ se 12 and the seat body 28 are integrally formed with each other.
• an inlet channel 32 and a bore 34 are arranged in the seat body 28.
• the sealing element 20 In a closed position of the closing body 18, the sealing element 20 is fluid-tight against a sealing seat 30, which is arranged in the wall 16 of the valve housing recess 14. For a fluid flow through the inlet channel 32 and the bore 34 is prevented.
• a filter 36 is arranged, with ⁇ means of the particles, which are located in the fluid, etcfil ⁇ tert can be tert, so that it can be prevented that they get into the valve housing recess 14.
• the pressure control valve 10 has further an actuator 38.
• the actuator 38 is preferably constructed as electromagnetic ⁇ specific actuator.
• the electromagnetic actuator unit 38 comprises a magnetic coil 40, which is arranged in a housing 42.
• Actuator unit 38 further includes an armature 44 and a pole core 46.
• the valve housing 12 has at one of the
• Valve housing 12 terminates fluid-tight.
• the armature 44 and the pole core 46 are disposed in the cup-shaped portion 47.
• the valve housing 12 forms together with the armature 44 arranged in the be ⁇ cherförmigen portion 47 and the
• the housing 42 When assembling the Druckre ⁇ gelventils 10, the housing 42 can be pushed with the solenoid coil 40 on the assembly with the cup-shaped portion 47, the armature 44 and the pole core 46, the housing 42 are rotated relative to the cup-shaped portion 47 about the longitudinal axis L, so that an appropriate spatial adjustment Zvi ⁇ rule of the solenoid coil 40 on the one hand and the armature 44 and the pole core 46 can be achieved on the other hand, and finally, the housing 42 can be fixed relative to the cup-shaped portion 47th
• the solenoid 40 and the housing 42 so ⁇ as the cup-shaped portion 47 with the armature 44 and the pole core 46 constitute an electromagnetic circuit.
• a spring 48 is arranged in the valve housing recess 14, in particular in the cup-shaped portion 47.
• the spring 48 is preferably arranged in a recess 50 of the pole core 46 axially between the pole core 46 and an intermediate plate 52.
• Closing members 18 are preferably rigidly coupled together.
• the closing body 18, the armature 44 and the intermediate plate 52 may also be fixedly coupled together in some other way, as far as it is ensured that a movement of the armature 44 is transferable to the closing body 18.
• the spring 48 is preferably formed as a spiral ⁇ spring. By means of the spring 48, a force on the intermediate plate 52 and thus the coupled to the intermediate plate 52 closing body 18 can be exercised.
• the pressure regulating valve 10 is coupled to a pressure-carrying component 54.
• the pressure-carrying component 54 is beispielswei ⁇ se a pump or a rail of an injection system a
• the pressure regulating valve 10 is partially disposed in a pressurizing member 60 formed in the pressure member 60 in which fluid is located.
• the pressure regulating ⁇ gelventil 10 is preferably coupled by means of a screw connection, a press-fit connection or a welding connection with the pressure conducting component 54th
• Valve housing recess 14 fluid-tight together. Thus, a fluid flow from the pressure circuit 60 in the
• Valve housing recess 14 can be prevented.
• the sealing element 20 In an open position of the closing body 18, the sealing element 20 is spaced from the seat body 28, so that a fluid flow F from the fluid inlet opening 24 through the
• Valve housing recess 14 is made possible to the fluid outlet opening 26.
• Actuator 38 is traversed by an electric current, an electromagnetic ⁇ tical force can be exerted on the armature 44 by means of the actuator unit 38.
• the armature 44 is attracted to the solenoid coil 40 and moves in axi ⁇ aler direction away from the fluid inlet opening 24.
• the armature 44 takes the closing body 18 via the intermediate plate 52 with it.
• the closing body 18 moves in the axial direction away from the fluid inlet opening 24 into an open position. tion. In this way, fluid can pass from the fluid inlet opening 24 via the inlet channel 32 and the bore 34 to the fluid outlet opening 26.
• the spring 48 can move the closing body 18 in the axial direction into its closed position. Whether the closing body 18 assumes its closed position or its open position depending Zvi ⁇ rule from the force equilibrium of the force of the electromagnetic
• Actuator 38 is exerted on the closing body 18, and acting by the spring 48 on the closing body 18 force.
• the solenoid 40 is energized and the closing body 18 enters the a predetermined open position to reduce the pressure of the fluid in the pressure circuit 60.
• This one open ⁇ open position of the closing body 18 is as long as ⁇ keep until a certain volume of fluid has been removed from the pressure circuit 60. In this case, the volume flow on the pressure difference between the fluid inlet opening 24 and the fluid outlet opening 26 and the geometric dimensions of the inlet channel 32 and the bore 34 can be adjusted. If the pressure circuit 60, a sufficient volume of fluid has been removed, the power supply to the solenoid can be interrupted, and the closing body 18 can return to its closed position.
• Such a pressure regulating valve 10 has the advantage that it can be designed as a digital pressure regulating valve, and the magnet coil 40 does not have to be permanently traversed by an electric current.
• the actuator unit 38 only needs then actuated when the predetermined value of the pressure of the fluid in the pressure circuit 60 is exceeded.
• the power consumption of the pressure regulating valve 10 can be kept small.
• SEN pressure control valve 10 Another advantage of the invention shown SEN pressure control valve 10 is that the number of components can be small.
• the invention is not limited to the specified personssbei ⁇ games.

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• 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)
• Control Of Fluid Pressure (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=46934560

Family Applications (1)

Country Status (5)

Families Citing this family (4)

Family Cites Families (7)

• 2011
  • 2011-09-21 DE DE102011083154A patent/DE102011083154A1/de not_active Ceased
• 2012
  • 2012-09-21 WO PCT/EP2012/068624 patent/WO2013041664A1/de unknown
  • 2012-09-21 EP EP12766057.9A patent/EP2758653A1/de not_active Ceased
  • 2012-09-21 IN IN2470DEN2014 patent/IN2014DN02470A/en unknown
  • 2012-09-21 KR KR1020147010634A patent/KR20140063864A/ko not_active Ceased

Non-Patent Citations (2)

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