DE102014211942A1 - Quantity proportional valve with heatable filter element - Google Patents
Quantity proportional valve with heatable filter element Download PDFInfo
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- DE102014211942A1 DE102014211942A1 DE102014211942.1A DE102014211942A DE102014211942A1 DE 102014211942 A1 DE102014211942 A1 DE 102014211942A1 DE 102014211942 A DE102014211942 A DE 102014211942A DE 102014211942 A1 DE102014211942 A1 DE 102014211942A1
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- filter element
- heating device
- sieve
- valve
- proportional valve
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- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005485 electric heating Methods 0.000 claims description 6
- 239000013078 crystal Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
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- 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
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
- F02D41/3854—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped with elements in the low pressure part, e.g. low pressure pump
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- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
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- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
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- 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
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- 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
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
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- 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
- F02M63/0056—Throttling valves, e.g. having variable opening positions throttling the flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
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- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
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- 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
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0606—Fuel temperature
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- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
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- 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
- F02M2200/27—Fuel-injection apparatus with filters
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Die Erfindung betrifft ein elektromagnetisch betätigbares Mengenproportionalventil zur Mengenregelung in einem Kraftstoffeinspritzsystem, insbesondere in einem Common-Rail-Einspritzsystem, umfassend ein Ventilgehäuse (1) mit mindestens einer Zulaufbohrung (2), vor welcher ein Filterelement oder Sieb (3) angeordnet ist. Erfindungsgemäß ist eine elektrische Heizvorrichtung zur Beheizung des Filterelements oder Siebs (3) vorgesehen. Ferner betrifft die Erfindung ein Verfahren zum Betreiben eines elektromagnetisch betätigbaren Mengenproportionalventils zur Mengenregelung in einem Kraftstoffeinspritzsystem, insbesondere in einem Common-Rail-Einspritzsystem.The invention relates to an electromagnetically actuated quantity proportional valve for flow control in a fuel injection system, in particular in a common rail injection system comprising a valve housing (1) with at least one inlet bore (2), in front of which a filter element or sieve (3) is arranged. According to the invention, an electrical heating device for heating the filter element or sieve (3) is provided. Furthermore, the invention relates to a method for operating an electromagnetically actuated quantity proportional valve for volume control in a fuel injection system, in particular in a common rail injection system.
Description
Die Erfindung betrifft ein elektromagnetisch betätigbares Mengenproportionalventil zur Mengenregelung in einem Kraftstoffeinspritzsystem, insbesondere in einem Common-Rail-Einspritzsystem, mit den Merkmalen des Oberbegriffs des Anspruchs 1. Ein solches Mengenproportionalventil ist insbesondere als Zumesseinheit einsetzbar, welche niederdruckseitig eine Kraftstoffhochdruckpumpe eines Kraftstoffeinspritzsystems betriebspunktabhängig mit der erforderlichen Menge Kraftstoff versorgt. Ferner betrifft die Erfindung ein Verfahren zum Betreiben eines elektromagnetisch betätigbaren Mengenproportionalventils zur Mengenregelung in einem Kraftstoffeinspritzsystem, insbesondere in einem Common-Rail-Einspritzsystem.The invention relates to an electromagnetically actuated quantity proportional valve for flow control in a fuel injection system, in particular in a common rail injection system, with the features of the preamble of
Stand der TechnikState of the art
Mengeproportionalventile der vorstehend genannten Art sind sehr schmutzempfindlich und werden daher oftmals mit einem Filterelement oder Sieb ausgestattet, um zu verhindern, dass im Kraftstoff enthaltene Schmutzpartikel in das Ventil gelangen.Quantity proportional valves of the type mentioned above are very sensitive to dirt and are therefore often equipped with a filter element or sieve, to prevent contaminants contained in the fuel from entering the valve.
Aus der Offenlegungsschrift
Um einen effektiven Schutz der Zumesseinheit zu erzielen, ist die Maschenweite eines solchen Filterelements in der Regel möglichst klein ausgelegt. Dies kann jedoch bei kalten Temperaturen und/oder beim Kaltstart zu Problemen führen, da sich im Kraftstoff, insbesondere im Dieselkraftstoff, Paraffinkristalle ausbilden, die das Filterelement zusetzen können. Die Folge ist eine Unterversorgung der Hochdruckpumpe mit Kraftstoff.In order to achieve effective protection of the metering unit, the mesh size of such a filter element is usually designed as small as possible. However, this can lead to problems at cold temperatures and / or during cold start, since form in the fuel, especially in diesel fuel, paraffin crystals, which can enforce the filter element. The result is a shortage of the high-pressure pump with fuel.
Aus dem Stand der Technik sind ferner als Einsteller und als Zweisteller bekannte Applikationen einer Zumesseinheit bekannt, wobei Letztere zusätzlich ein Druckregelventil umfassen, über welches eine bereits erwärmte Absteuermenge wieder dem Zulaufbereich der Hochdruckpumpe zuführbar ist. Die Absteuermenge kann dann zur Erwärmung des Kraftstoffs im Zulaufbereich genutzt werden. Oftmals reicht dies alleine jedoch nicht aus, um ein Zusetzen des Filterelements der Zumesseinheit sicher zu verhindern.From the prior art are also known as adjuster and known as a two-part applications of a metering unit, the latter additionally comprise a pressure control valve, via which an already heated Absteuermenge back to the inlet region of the high-pressure pump can be fed. The Absteuermenge can then be used to heat the fuel in the inlet area. However, this alone is often insufficient to reliably prevent clogging of the filter element of the metering unit.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein mit einem Filterelement oder Sieb ausgestattetes, elektromagnetisch betätigbares Mengenproportionalventil für ein Kraftstoffeinspritzsystem anzugeben, das auch bei kalten Temperaturen und/oder beim Kaltstart eine zuverlässige Mengenregelung ermöglicht.The present invention has for its object to provide a equipped with a filter element or sieve, electromagnetically actuated quantity proportional valve for a fuel injection system, which allows a reliable flow control even at cold temperatures and / or cold start.
Zur Lösung der Aufgabe werden ein elektromagnetisch betätigbares Mengenproportionalventil mit den Merkmalen des Anspruchs 1 sowie ein Verfahren zum Betreiben eines elektromagnetisch betätigbaren Mengenproportionalventils mit den Merkmalen des Anspruchs 7 vorgeschlagen. Vorteilhafte Weiterbildungen der Erfindung sind den jeweiligen Unteransprüchen zu entnehmen.To solve the problem, an electromagnetically actuated quantity proportional valve with the features of
Offenbarung der ErfindungDisclosure of the invention
Das zur Mengenregelung in einem Kraftstoffeinspritzsystem, insbesondere in einem Common-Rail-Einspritzsystem, vorgeschlagene elektromagnetisch betätigbare Mengenproportionalventil umfasst ein Ventilgehäuse mit mindestens einer Zulaufbohrung, vor welcher ein Filterelement oder Sieb angeordnet ist. Erfindungsgemäß ist eine elektrische Heizvorrichtung zur Beheizung des Filterelements oder Siebs vorgesehen. Über die elektrische Heizvorrichtung kann der Kraftstoff im Zulaufbereich des Mengenproportionalventils auf eine Temperatur erwärmt werden, so dass keine Paraffinkristalle im Kraftstoff, insbesondere Dieselkraftstoff, ausgebildet werden. Damit sinkt die Gefahr eines Zusetzens des vorgeschalteten Filterelements bzw. Siebs deutlich, so dass ferner eine zuverlässige Mengenreglung bei kalten Temperaturen und/oder beim Kaltstart sichergestellt ist.The electromagnetically actuated quantity proportional valve proposed for quantity regulation in a fuel injection system, in particular in a common rail injection system, comprises a valve housing with at least one inlet bore, in front of which a filter element or sieve is arranged. According to the invention, an electrical heating device is provided for heating the filter element or sieve. The fuel can be heated to a temperature in the inlet region of the quantity proportional valve via the electric heating device, so that no paraffin crystals in the fuel, in particular diesel fuel, are formed. Thus, the risk of clogging of the upstream filter element or sieve decreases significantly, so that furthermore a reliable quantity control is ensured at cold temperatures and / or during cold start.
Bevorzugt ist die elektrische Heizvorrichtung zur Beheizung des Filterelements oder Siebs als Widerstandsheizung ausgelegt und umfasst mindestens einen Heizdraht. Eine solche Heizvorrichtung ist einfach umsetzbar und benötigt einen geringen Bauraum. Vorzugsweise ist der mindestens eine Heizdraht in das Filterelement oder Sieb integriert. Dadurch kann der Bauraumbedarf weiter gesenkt werden. Beispielsweise kann der mindestens eine Heizdraht Bestandteil des Filter- oder Siebgewebes sein.Preferably, the electric heater for heating the filter element or screen is designed as a resistance heater and comprises at least one heating wire. Such a heater is easy to implement and requires a small amount of space. Preferably, the at least one heating wire is integrated in the filter element or sieve. As a result, the space requirement can be further reduced. For example, the at least one heating wire may be part of the filter or mesh fabric.
Weiterhin bevorzugt ist die elektrische Heizvorrichtung über eine elektrische Leitung an mindestens eine elektrische Leitung zur Stromversorgung und/oder Ansteuerung eines im Ventilgehäuse aufgenommenen Elektromagneten angeschlossen. Die elektrische Heizvorrichtung kann auf diese Weise über den Elektromagneten mit Strom versorgt bzw. angesteuert werden. Das heißt, dass kein separater Anschluss der elektrischen Heizvorrichtung an eine externe Stromversorgung erforderlich ist. Die Ansteuerung der elektrischen Heizvorrichtung erfolgt dabei vorzugsweise parallel zur Ansteuerung des Elektromagneten. Handelt es sich um ein Mengenproportionalventil, das bei stromlos geschaltetem Elektromagneten geschlossen ist, kann auf diese Weise eine durchflussabhängige Leistungssteuerung der elektrischen Heizvorrichtung realisiert werden.Further preferably, the electrical heating device is connected via an electrical line to at least one electrical line for power supply and / or control of an electromagnet accommodated in the valve housing. The electric heater can be powered or energized in this way via the electromagnet. That is, no separate connection of the electric heater to an external power supply is required. The control of the electric heater takes place preferably parallel to the control of the electromagnet. If it is a volume proportional valve that is closed when de-energized solenoid, a flow-dependent power control of the electric heater can be realized in this way.
Um die elektrische Heizvorrichtung unabhängig vom Elektromagneten anzusteuern, wird alternativ oder ergänzend vorgeschlagen, dass die elektrische Heizvorrichtung über eine elektrische Leitung an eine externe Stromversorgung anschließbar ist. Die externe Stromversorgung kann beispielsweise über ein Steuergerät erfolgen, an welches vorzugsweise auch der Elektromagnet des Mengenproportionalventils angeschlossen ist. Auf diese Weise können bereits vorhandene Anschlusskomponenten genutzt werden, die ggf. nur mit einer weiteren elektrischen Leitung bzw. Ader zur Ansteuerung der elektrischen Heizvorrichtung auszurüsten sind. Im Steuergerät ist vorzugsweise eine Software hinterlegt, welche eine Integration der elektrischen Heizvorrichtung in ein übergeordnetes elektrisches Energiemanagement ermöglicht.In order to control the electric heating device independently of the electromagnet, it is alternatively or additionally proposed that the electrical heating device can be connected via an electrical line to an external power supply. The external power supply can take place for example via a control unit, to which preferably also the solenoid of the proportional quantity valve is connected. In this way, already existing connection components can be used, which may need to be equipped with only one further electrical line or wire for controlling the electric heater. In the control unit, a software is preferably stored, which allows integration of the electric heater in a higher-level electrical energy management.
In Weiterbildung der Erfindung wird vorgeschlagen, dass ein Temperaturschalter vorgesehen ist, über den die elektrische Heizvorrichtung zu- und abschaltbar ist. Ein Temperaturschalter erweist sich insbesondere als sinnvoll, wenn die Ansteuerung der elektrischen Heizvorrichtung parallel zum Elektromagneten des Mengenproportionalventils erfolgt. Er stellt sicher, dass die elektrische Beheizung des Filterelements oder Siebs nur dann erfolgt, wenn die Temperatur des Kraftstoffs einen bestimmten Grenzwert unterschreitet. Der Grenzwert kann beispielsweise bei –5°C liegen. Ein oberer Grenzwert zum Abschalten der Heizvorrichtung kann beispielsweise bei 5°C liegen (Schalthysterese). Als Temperaturschalter eignet sich insbesondere ein Bimetall-Schalter, der einfach zu integrieren ist. Vorzugsweise ist der Temperaturschalter im Ventilgehäuse des Mengenproportionalventils aufgenommen.In a further development of the invention, it is proposed that a temperature switch is provided, via which the electric heating device can be switched on and off. A temperature switch proves to be particularly useful when the control of the electric heater is parallel to the solenoid of the proportional quantity valve. It ensures that the electrical heating of the filter element or screen occurs only when the temperature of the fuel falls below a certain limit. For example, the limit may be -5 ° C. An upper limit for switching off the heating device may be, for example, 5 ° C (switching hysteresis). As a temperature switch is particularly suitable a bimetallic switch that is easy to integrate. Preferably, the temperature switch is accommodated in the valve housing of the proportional quantity valve.
Vorteilhafterweise besitzt das Ventilgehäuse einen Steckeranschluss zur Verbindung wenigstens einer elektrischen Leitung mit einer externen Stromversorgung. Der Steckeranschluss muss ggf. mit einem weiteren Kontakt für eine weitere elektrische Leitung bzw. Ader ausgestattet werden, wenn die Ansteuerung der elektrischen Heizvorrichtung nicht parallel zum Elektromagneten des Mengenproportionalventils erfolgt. Der Steckeranschluss ermöglicht eine Bündelung der elektrischen Leitungen, so dass im Wesentlichen bereits vorhandene Anschlusskomponenten genutzt werden können.Advantageously, the valve housing has a plug connection for connecting at least one electrical line to an external power supply. If necessary, the plug connection must be equipped with a further contact for a further electrical line or wire, if the activation of the electric heating device does not take place parallel to the electromagnet of the proportional quantity valve. The plug connection allows a bundling of the electrical lines, so that essentially already existing connection components can be used.
Das ferner zur Lösung der eingangs genannten Aufgabe vorgeschlagene Verfahren zum Betreiben eines elektromagnetisch betätigbaren Mengenproportionalventils zur Mengenregelung in einem Kraftstoffeinspritzsystem, insbesondere in einem Common-Rail-Einspritzsystem, setzt voraus, dass das Ventil ein Ventilgehäuse mit mindestens einer Zulaufbohrung umfasst, vor welcher ein Filterelement oder Sieb angeordnet ist. Erfindungsgemäß wird bei dem Verfahren das Filterelement oder Sieb zumindest zeitweise mittels einer als Widerstandsheizung ausgelegten und mindestens einen Heizdraht umfassenden elektrischen Heizvorrichtung beheizt. Die elektrische Beheizung des Filterelements oder des Siebs erfolgt insbesondere bei kalten Temperaturen und/oder beim Kaltstart, um den Kraftstoff, insbesondere den Dieselkraftstoff, zu erwärmen und die Ausbildung von Paraffinkristallen zu verhindern, die das Filterelement oder Sieb zusetzen könnten. Auf diese Weise ist eine zuverlässige Mengenregelung durch das Mengenproportionalventil selbst bei kalten Temperaturen und/oder beim Kaltstart gewährleistet.The further proposed for solving the above-mentioned object method for operating an electromagnetically actuated proportional quantity valve for flow control in a fuel injection system, in particular in a common rail injection system, requires that the valve comprises a valve housing with at least one inlet bore, in front of which a filter element or Sieve is arranged. According to the invention, the filter element or sieve is heated, at least temporarily, by means of an electrical heating device designed as a resistance heater and comprising at least one heating wire. The electrical heating of the filter element or of the screen takes place, in particular, at cold temperatures and / or during cold start in order to heat the fuel, in particular the diesel fuel, and to prevent the formation of paraffin crystals, which could clog the filter element or sieve. In this way, a reliable flow control is ensured by the volume proportional valve even at cold temperatures and / or cold start.
Die Ausbildung der elektrischen Heizvorrichtung als Widerstandsheizung mit wenigstens einem Heizdraht ist einfach zu realisieren. Der wenigstens eine Heizdraht kann insbesondere in das Filter- bzw. Siebgewebe integriert werden.The formation of the electric heater as resistance heating with at least one heating wire is easy to implement. The at least one heating wire can be integrated in particular in the filter or screen fabric.
Bevorzugt wird die elektrische Heizvorrichtung über eine elektrische Leitung, die an mindestens eine elektrische Leitung zur Stromversorgung und/oder Ansteuerung eines im Ventilgehäuse aufgenommenen Elektromagneten angeschlossen ist, mit Strom versorgt. Die Ansteuerung erfolgt in diesem Fall bevorzugt parallel zur Ansteuerung des Elektromagneten. Auf diese Weise ist eine durchflussabhängige Ansteuerung der elektrischen Heizvorrichtung möglich ist, wenn es sich beispielsweise um ein Mengenproportionalventil handelt, dass stromlos geschlossen ist.The electrical heating device is preferably supplied with power via an electrical line, which is connected to at least one electrical line for the power supply and / or control of an electromagnet accommodated in the valve housing. The control is carried out in this case preferably parallel to the control of the electromagnet. In this way, a flow-dependent control of the electric heater is possible, for example, it is a quantity proportional valve that is normally closed.
Alternativ oder ergänzend wird vorgeschlagen, dass die elektrische Heizvorrichtung über eine elektrische Leitung, die an eine externe Stromversorgung anschließbar ist, mit Strom versorgt wird. Die Ansteuerung der elektrischen Heizvorrichtung kann in diesem Fall unabhängig von der Ansteuerung des Elektromagneten erfolgen.Alternatively or additionally, it is proposed that the electrical heating device be supplied with power via an electrical line that can be connected to an external power supply. The control of the electric heater can be done in this case, regardless of the control of the electromagnet.
Darüber hinaus wird vorgeschlagen, dass die elektrische Heizvorrichtung über einen Temperaturschalter bei Bedarf zu- und abgeschaltet wird. Das Zuschalten der elektrischen Heizvorrichtung sollte insbesondere dann erfolgen, wenn die Temperatur des Kraftstoffs unter einen bestimmten Grenzwert fällt. Der Grenzwert kann beispielsweise bei –5°C liegen. Wird eine Temperatur von –5°C unterschritten, wird die elektrische Heizvorrichtung zugeschaltet. Ein oberer Grenzwert zum Abschalten der Heizvorrichtung kann beispielsweise bei 5°C liegen (Schalthysterese). Als Temperaturschalter kann beispielsweise ein Bimetall-Schalter eingesetzt werden.In addition, it is proposed that the electric heater via a temperature switch on demand and is switched off. The connection of the electric heater should be made in particular when the temperature of the fuel falls below a certain limit. For example, the limit may be -5 ° C. If the temperature falls below -5 ° C, the electric heater is switched on. An upper limit value for switching off the heating device may, for example, be 5 ° C. ( Switching). As a temperature switch, for example, a bimetallic switch can be used.
Erfolgt die Ansteuerung der elektrischen Heizvorrichtung über eine separate elektrische Leitung, kann auf einen Temperaturschalter verzichtet werden. Denn dann kann eine bedarfsgerechte Ansteuerung über ein externes Steuergerät, in dem eine entsprechende Software hinterlegt ist, realisiert werden.If the control of the electric heater via a separate electrical line, can be dispensed with a temperature switch. Because then an on-demand control via an external control device, in which a corresponding software is deposited, can be realized.
Bevorzugte Ausführungsformen der Erfindung werden nachfolgend anhand der beigefügten Zeichnungen näher erläutert. Diese zeigen:Preferred embodiments of the invention are explained below with reference to the accompanying drawings. These show:
Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings
Das in der
Die Ausführungsform gemäß der
Eine alternative Ansteuerung der elektrischen Heizvorrichtung eines erfindungsgemäßen Mengenproportionalventils ist in der
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102010062455 A1 [0003] DE 102010062455 A1 [0003]
Claims (10)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014211942.1A DE102014211942A1 (en) | 2014-06-23 | 2014-06-23 | Quantity proportional valve with heatable filter element |
CN201580033835.XA CN106471242A (en) | 2014-06-23 | 2015-06-17 | The flow proportion valve of Electromagnetically-operating and the method for running the flow proportion valve of Electromagnetically-operating |
PCT/EP2015/063512 WO2015197433A1 (en) | 2014-06-23 | 2015-06-17 | Electromagnetically actuable proportional flow valve, and method for operating an electromagnetically actuable proportional flow valve |
RU2017101851A RU2017101851A (en) | 2014-06-23 | 2015-06-17 | ELECTROMAGNETIC VALVE OF PROPORTIONAL CONTROL OF EXPENSE, AND ALSO WAY OF CONTROL OF OPERATION OF SUCH ELECTROMAGNETIC VALVE |
EP15729834.0A EP3158183A1 (en) | 2014-06-23 | 2015-06-17 | Electromagnetically actuable proportional flow valve, and method for operating an electromagnetically actuable proportional flow valve |
KR1020177001803A KR20170020506A (en) | 2014-06-23 | 2015-06-17 | Electromagnetically actuable proportional flow valve, and method for operating an electromagnetically actuable proportional flow valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102014211942.1A DE102014211942A1 (en) | 2014-06-23 | 2014-06-23 | Quantity proportional valve with heatable filter element |
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DE102014211942A1 true DE102014211942A1 (en) | 2015-12-24 |
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DE102014211942.1A Withdrawn DE102014211942A1 (en) | 2014-06-23 | 2014-06-23 | Quantity proportional valve with heatable filter element |
Country Status (6)
Country | Link |
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EP (1) | EP3158183A1 (en) |
KR (1) | KR20170020506A (en) |
CN (1) | CN106471242A (en) |
DE (1) | DE102014211942A1 (en) |
RU (1) | RU2017101851A (en) |
WO (1) | WO2015197433A1 (en) |
Cited By (2)
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IT201600123932A1 (en) * | 2016-12-06 | 2018-06-06 | Bosch Gmbh Robert | APPARATUS AND METHOD FOR UNINSTALLING A FILTER OF A DIESEL OIL PUMPING GROUP TO AN INTERNAL COMBUSTION ENGINE |
IT201600123942A1 (en) * | 2016-12-06 | 2018-06-06 | Bosch Gmbh Robert | GROUP AND METHOD TO CLEAN A FILTER OF A DIESEL OIL PUMPING GROUP TO AN INTERNAL COMBUSTION ENGINE |
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DE102016216343A1 (en) * | 2016-08-30 | 2018-03-01 | Robert Bosch Gmbh | Method for controlling an electromagnetically controllable inlet valve |
DE102017212725A1 (en) * | 2017-07-25 | 2019-01-31 | Robert Bosch Gmbh | Proportional valve for controlling a gaseous medium |
DE102018205512A1 (en) * | 2018-04-12 | 2019-10-17 | Robert Bosch Gmbh | Method for determining a control signal for an electronically controllable pressure medium control valve of an electronic slip-controllable power-brake system |
CN110221393B (en) * | 2019-06-27 | 2020-11-06 | 烽火通信科技股份有限公司 | Air-blowing traction device for loose tube and production line |
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DE102010041494A1 (en) * | 2010-09-28 | 2012-03-29 | Robert Bosch Gmbh | Metering unit for radial piston pump of common-rail fuel injection system of combustion engine, has filter element arranged in region of inlet holes at outer periphery of magnetic core, and groove formed around outer periphery of core |
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- 2014-06-23 DE DE102014211942.1A patent/DE102014211942A1/en not_active Withdrawn
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2015
- 2015-06-17 RU RU2017101851A patent/RU2017101851A/en not_active Application Discontinuation
- 2015-06-17 WO PCT/EP2015/063512 patent/WO2015197433A1/en active Application Filing
- 2015-06-17 EP EP15729834.0A patent/EP3158183A1/en not_active Withdrawn
- 2015-06-17 CN CN201580033835.XA patent/CN106471242A/en active Pending
- 2015-06-17 KR KR1020177001803A patent/KR20170020506A/en unknown
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DE102010062455A1 (en) | 2010-12-06 | 2012-06-06 | Robert Bosch Gmbh | Metering unit and filter element |
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IT201600123932A1 (en) * | 2016-12-06 | 2018-06-06 | Bosch Gmbh Robert | APPARATUS AND METHOD FOR UNINSTALLING A FILTER OF A DIESEL OIL PUMPING GROUP TO AN INTERNAL COMBUSTION ENGINE |
IT201600123942A1 (en) * | 2016-12-06 | 2018-06-06 | Bosch Gmbh Robert | GROUP AND METHOD TO CLEAN A FILTER OF A DIESEL OIL PUMPING GROUP TO AN INTERNAL COMBUSTION ENGINE |
WO2018104290A1 (en) * | 2016-12-06 | 2018-06-14 | Robert Bosch Gmbh | Apparatus and method for unclogging a filter of a pumping group for pumping diesel to an internal combustion engine |
WO2018104168A1 (en) * | 2016-12-06 | 2018-06-14 | Robert Bosch Gmbh | Group and method for unclogging a filter of a pumping group for pumping diesel to an internal combustion engine |
CN110050122A (en) * | 2016-12-06 | 2019-07-23 | 罗伯特·博世有限公司 | For dredging the device and method of the filter of the pump for diesel oil to be pumped into internal combustion engine |
US20190383225A1 (en) * | 2016-12-06 | 2019-12-19 | Robert Bosch Gmbh | Group and method for unclogging a filter of a pumping group for pumping diesel to an internal combustion engine |
JP2020501078A (en) * | 2016-12-06 | 2020-01-16 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | Group and method for preventing clogging of filters of a pumping group for pumping diesel fuel to an internal combustion engine |
US11008990B2 (en) | 2016-12-06 | 2021-05-18 | Robert Bosch Gmbh | Apparatus and method for unclogging a filter of a pumping group for pumping diesel to an internal combustion engine |
CN110050122B (en) * | 2016-12-06 | 2021-09-21 | 罗伯特·博世有限公司 | Apparatus and method for unblocking a filter of a pumping assembly for pumping diesel oil to an internal combustion engine |
US11286891B2 (en) * | 2016-12-06 | 2022-03-29 | Robert Bosch Gmbh | Group and method for unclogging a filter of a pumping group for pumping diesel to an internal combustion engine |
Also Published As
Publication number | Publication date |
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WO2015197433A1 (en) | 2015-12-30 |
EP3158183A1 (en) | 2017-04-26 |
CN106471242A (en) | 2017-03-01 |
RU2017101851A (en) | 2018-07-23 |
KR20170020506A (en) | 2017-02-22 |
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