EP1636487A1 - Druckregelventil für ein speicherkraftstoffeinspritzsystem - Google Patents
Druckregelventil für ein speicherkraftstoffeinspritzsystemInfo
- Publication number
- EP1636487A1 EP1636487A1 EP04724534A EP04724534A EP1636487A1 EP 1636487 A1 EP1636487 A1 EP 1636487A1 EP 04724534 A EP04724534 A EP 04724534A EP 04724534 A EP04724534 A EP 04724534A EP 1636487 A1 EP1636487 A1 EP 1636487A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- accumulator
- fuel
- pressure control
- control valve
- 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
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 39
- 238000002347 injection Methods 0.000 title claims abstract description 8
- 239000007924 injection Substances 0.000 title claims abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- F02M63/02—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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
- F02M37/0029—Pressure regulator in the low pressure fuel system
-
- 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
- F02M63/005—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
-
- 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
- F02M63/026—Means for reducing the pressure in common rails at power off
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/18—Fuel-injection apparatus having means for maintaining safety not otherwise provided for
Definitions
- the invention relates to a storage fuel injection system for fuel engines for regulating the pressure in a fuel accumulator with a piston-shaped valve member which is axially displaceably guided in a bore and which acts on a closing element in the closing direction and presses it against a valve seat, the valve member forming an armature of an electromagnet. that can be energized.
- Pressure control valves of this type are known in a wide variety of designs. This' pressure control valve is used to control the pressure in a fuel accumulator.
- the pressure control valve has a piston-shaped valve member which is axially displaceably guided in a bore against the force, preferably a closing spring.
- the Ven The valve member acts in the closing direction on a closing element of the pressure control valve and presses it against a valve seat.
- the valve member forms an armature of an electromagnet, which can be energized to support the force of the closing spring.
- the closing spring By the closing spring, the closing element is pressed with a certain force against the valve seat via the valve member, the closing member is lifted by acting on this pressure in the • fuel reservoir from the valve seat when the force generated by the pressure exceeds the force of the closing and fuel from the fuel accumulator flows into a relief chamber via the open pressure control valve.
- the electromagnet When a higher pressure is set in the fuel accumulator, the electromagnet is energized so that the closing force exerted on the closing element via the valve member is increased and thus the closing element only lifts off the valve seat and fuel from the fuel accumulator in at a higher pressure in the fuel accumulator can measure the relief space.
- the object of the invention is to develop the pressure control valve known from the prior art in such a way that it can be manufactured more cost-effectively.
- the central idea of the solution to the problem is to arrange the fuel accumulator with its inflows and outflows arranged on both sides in such a way that it is arranged below a liquid level, so that automatic emptying is not possible, in particular in the de-energized state (corresponds to engine standstill) , It can thereby be achieved that a spring - as is known from the prior art - which generates the additional axial force when the pressure control valve is not under current can be omitted.
- Fig. 1 shows a section through the pressure control valve according to the invention and its arrangement in relation to fuel storage and fuel tank.
- FIG. 1 shows a longitudinal section through a pressure regulating valve 1.
- the storage fuel injection system which is also referred to as a common rail injection system, has a high-pressure pump 2, by means of which fuel is conveyed under high pressure from a fuel storage tank 3 into a fuel storage device 4.
- the fuel accumulator 4 is, for example, tubular, designed as a so-called rail. Lines 5 lead from the fuel accumulator 4 to the injection points of an internal combustion engine 6, in each of which a valve 7 is arranged. 3
- the pressure control valve 1 is provided, which can be arranged at the outlet of the high-pressure pump 2 or at the fuel accumulator 4.
- the pressure control valve 1 itself has a valve 8, in which a bore 9 is formed, in which a piston-shaped valve member 10 is axially displaceable.
- a fastening flange 11 is formed on the valve body 8, via which the valve body is fastened to the high-pressure pump 2 or to the fuel accumulator 4.
- a further space is provided within the valve body 8, in which an electromagnet 12 with a coil winding is arranged.
- a connecting element 13 is provided on the valve body 8, which covers the space of the valve body. According to the prior art, there is a recess in the connection element
- a spring is provided which exerts a force on the valve member 10.
- the valve member 10 is caused to continue against the valve seat shown here
- Control valve 1 flows from fuel reservoir 4 through fuel through valve seat 16, for example into a relief chamber, here a fuel storage tank 3.
- the electromagnet 12 is energized, so that the valve seat 16 remains closed even when the pressure is increased.
- a component of a pressure accumulator valve 1 known per se can be removed in a very simple manner solely by the arrangement of a relief tank 3 or fuel accumulator 4, which saves costs and simplifies assembly.
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)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10322127A DE10322127A1 (de) | 2003-05-16 | 2003-05-16 | Druckregelventil für ein Speicherkraftstoffeinspritzsystem |
| PCT/DE2004/000659 WO2004104405A1 (de) | 2003-05-16 | 2004-03-31 | Druckregelventil für ein speicherkraftstoffeinspritzsystem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1636487A1 true EP1636487A1 (de) | 2006-03-22 |
| EP1636487B1 EP1636487B1 (de) | 2008-01-30 |
Family
ID=33394679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04724534A Expired - Lifetime EP1636487B1 (de) | 2003-05-16 | 2004-03-31 | Druckregelventil für ein speicherkraftstoffeinspritzsystem |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060272617A1 (de) |
| EP (1) | EP1636487B1 (de) |
| JP (1) | JP2007502386A (de) |
| DE (2) | DE10322127A1 (de) |
| WO (1) | WO2004104405A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007062176A1 (de) * | 2007-12-21 | 2009-06-25 | Robert Bosch Gmbh | Druckregelventil zur Regelung des Drucks in einem Hochdruck-Kraftstoffspeicher |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1751403A1 (de) * | 1968-05-24 | 1971-02-18 | Porsche Kg | Kraftstoff-Einspritzvorrichtung |
| US4180022A (en) * | 1977-10-31 | 1979-12-25 | Chrysler Corporation | Fuel injection system and control valve for multi-cylinder engines |
| DE3132432A1 (de) * | 1981-08-17 | 1983-02-24 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzanlage |
| US4406129A (en) * | 1981-12-11 | 1983-09-27 | Beech Aircraft Corporation | Saturated cryogenic fuel system |
| DE3342582C2 (de) * | 1983-11-25 | 1986-02-13 | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn | Verfahren und Vorrichtung zum Betreiben eines Wasserstoffmotors |
| JPH10196482A (ja) * | 1997-01-16 | 1998-07-28 | Isuzu Motors Ltd | ディーゼル機関の燃料噴射装置 |
| IT1308779B1 (it) * | 1999-07-02 | 2002-01-10 | Elasis Sistema Ricerca Fiat | Dispositivo di regolazione della pressione di mandata di una pompa,adesempio per l'alimentazione di combustibile ad un motore a combustione |
| DE19949814A1 (de) * | 1999-10-15 | 2001-04-19 | Bosch Gmbh Robert | Druckregelventil für ein Speicherkraftstoffeinspritzsystem für Brennkraftmaschinen |
| DE10016242B4 (de) * | 2000-03-31 | 2006-04-13 | Siemens Ag | Druckregelventil mit integrierter Sicherheitsfunktion |
| CA2362844C (en) * | 2001-11-30 | 2004-08-31 | Westport Research Inc. | Method and apparatus for delivering a high pressure gas from a cryogenic storage tank |
-
2003
- 2003-05-16 DE DE10322127A patent/DE10322127A1/de not_active Withdrawn
-
2004
- 2004-03-31 US US10/556,288 patent/US20060272617A1/en not_active Abandoned
- 2004-03-31 DE DE502004006107T patent/DE502004006107D1/de not_active Expired - Lifetime
- 2004-03-31 WO PCT/DE2004/000659 patent/WO2004104405A1/de not_active Ceased
- 2004-03-31 JP JP2006529577A patent/JP2007502386A/ja active Pending
- 2004-03-31 EP EP04724534A patent/EP1636487B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004104405A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004006107D1 (de) | 2008-03-20 |
| EP1636487B1 (de) | 2008-01-30 |
| DE10322127A1 (de) | 2004-12-02 |
| US20060272617A1 (en) | 2006-12-07 |
| JP2007502386A (ja) | 2007-02-08 |
| WO2004104405A1 (de) | 2004-12-02 |
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