DE102007002402B4 - Gas injection device for an internal combustion engine - Google Patents
Gas injection device for an internal combustion engine Download PDFInfo
- Publication number
- DE102007002402B4 DE102007002402B4 DE102007002402.0A DE102007002402A DE102007002402B4 DE 102007002402 B4 DE102007002402 B4 DE 102007002402B4 DE 102007002402 A DE102007002402 A DE 102007002402A DE 102007002402 B4 DE102007002402 B4 DE 102007002402B4
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- Prior art keywords
- gas injection
- injection device
- needle
- chamber
- opening
- 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.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 49
- 239000007924 injection Substances 0.000 title claims abstract description 49
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 25
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 9
- 235000011187 glycerol Nutrition 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- 239000002480 mineral oil Substances 0.000 claims description 3
- 235000010446 mineral oil Nutrition 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 210000002159 anterior chamber Anatomy 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- 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
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
- F02M21/0269—Outwardly opening valves, e.g. poppet 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
- 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
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
- F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/026—Measuring or estimating parameters related to the fuel supply system
- F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
-
- 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
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
- F02M2200/705—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for filling or emptying hydraulic chamber, e.g. for compensating clearance or thermal expansion
- F02M2200/706—Valves for filling or emptying hydraulic chamber
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Gaseinblasvorrichtung für einen Verbrennungsmotor mit einer Einblasöffnung, einer Nadel (17) und einem Aktor (4), um die Nadel (17) zwischen einer Schließstellung, in der die Einblasöffnung durch die Nadel (17) verschlossen ist, und einer Einblasstellung, in der die Einblasöffnung geöffnet ist, hin- und herzubewegen, sowie ein hydraulischer Hubtransformator, um eine Bewegung des Aktors (4) mit einem relativ kleinen Hub in eine Bewegung der Nadel (17) mit einem relativ großen Hub zu transformieren, dadurch gekennzeichnet, dass der hydraulische Hubtransformator eine Dämpfungseinrichtung (16) umfasst, um Vibrationen der Nadel (17) zu dämpfen.Gas injection device for an internal combustion engine with an injection opening, a needle (17) and an actuator (4) to move the needle (17) between a closed position in which the injection opening is closed by the needle (17) and an injection position in which the Injection opening is open to move back and forth, and a hydraulic lifting transformer to transform a movement of the actuator (4) with a relatively small stroke into a movement of the needle (17) with a relatively large stroke, characterized in that the hydraulic lifting transformer a damping device (16) to dampen vibrations of the needle (17).
Description
Die vorliegende Erfindung betrifft eine Gaseinblasvorrichtung für einen Verbrennungsmotor gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a gas injection device for an internal combustion engine according to the preamble of
Aus der
Aus der
Aus der
Die
Die
Die zitierten Druckschriften offenbaren keine Anpassungen zum Einblasen von sehr großen Gasvolumina.The cited references do not disclose adaptations for injecting very large volumes of gas.
Um ein Kraftfahrzeug mit einem Verbrennungsmotor, der Gas verwendet, zu betreiben, müssen relativ große Gasvolumen in sehr kurzen Zeiteinheiten mit Hilfe der Gaseinblasvorrichtung eingeblasen werden. Dazu muß eine Querschnittsfläche geöffnet werden, die mindestens eine Größenordnung (Faktor 10) über der Querschnittsfläche eines typischen Benzininjektors liegt.In order to operate a motor vehicle with an internal combustion engine using gas, relatively large gas volumes must be injected in very short time units by means of the gas injection device. For this purpose, a cross-sectional area must be opened which is at least an order of magnitude (factor 10) over the cross-sectional area of a typical gasoline injector.
Nachteilig ist, daß die Gaseinblasvorrichtung groß ausgelegt werden muß, um das Einblasen von sehr großen Gasvolumen in sehr kurzen Zeiteinheiten zu ermöglichen, wodurch unerwünscht viel Raum bei dem Zylinder belegt wird.The disadvantage is that the Gaseinblasvorrichtung must be designed large, to allow the injection of very large volumes of gas in very short time units, whereby an undesirable amount of space is occupied in the cylinder.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Kraftstoffeinspritzvorrichtung für einen Verbrennungsmotor zu schaffen, die wenig Raum belegt und gleichzeitig das Einblasen von ausreichenden Gasmengen in sehr kurzen Zeiteinheiten ermöglicht.The present invention has for its object to provide a fuel injection device for an internal combustion engine, which occupies little space and at the same time allows the injection of sufficient amounts of gas in very short time units.
Die der Erfindung zugrunde liegende Aufgabe wird durch eine Gaseinblasvorrichtung für einen Verbrennungsmotor mit den Merkmalen des kennzeichnenden Teils des Patentanspruchs 1 gelöst.The object underlying the invention is achieved by a gas injection device for an internal combustion engine having the features of the characterizing part of
Erfindungsgemäß ist ein hydraulischer Hubtransformator vorgesehen, um eine Bewegung des Aktors mit einem relativ kleinen Hub in eine Bewegung der Nadel mit einem relativ großen Hub zu transformieren.According to the invention, a hydraulic lifting transformer is provided to transform a movement of the actuator with a relatively small stroke into a movement of the needle with a relatively large stroke.
Vorteilhafterweise kann ein Aktor verwendet werden, der selbst nicht für einen ausreichenden Hub sorgen kann, um eine ausreichende Gaszufuhr zu gewährleisten.Advantageously, an actuator can be used, which itself can not provide sufficient lift to ensure adequate gas supply.
In einer bevorzugten Ausführungsform umfaßt der hydraulische Hubtransformator ein mit einem Fluid gefülltes abgeschlossenes Volumen, welches eine hintere Öffnung aufweist, in welche ein Hubkolben eingeführt ist, und eine vordere Öffnung aufweist, in welche ein Nadelbetätigungskolben eingeführt ist.In a preferred embodiment, the hydraulic lift transformer comprises a sealed volume filled with a fluid having a rear opening into which a reciprocating piston is inserted and having a front opening into which a needle actuation piston is inserted.
Vorteilhafterweise ist ein derartiger hydraulischer Hubtransformator langlebig und stabil.Advantageously, such a hydraulic lifting transformer is durable and stable.
In einer Weiterbildung der bevorzugten Ausführungsform ist eine hintere Dichtung zwischen dem Hubkolben und dem Gehäuse hinter der hinteren Öffnung vorgesehen, so daß eine hintere Dichtungskammer ausgebildet ist, und ist eine vordere Dichtung zwischen dem Nadelbetätigungskolben und dem Gehäuse vor der vorderen Öffnung vorgesehen, so daß eine vordere Dichtungskammer ausgebildet ist, und verbindet eine Leitung die vordere Kammer mit der hinteren Kammer.In a further development of the preferred embodiment, a rear seal between the reciprocating piston and the housing is provided behind the rear opening, so that a rear seal chamber is formed, and a front seal between the needle actuating piston and the housing is provided in front of the front opening, so that a front seal chamber is formed, and connects a conduit the front chamber with the rear chamber.
Vorteilhafterweise kann der Hubtransformator vollkommen abgedichtet werden.Advantageously, the lifting transformer can be completely sealed.
In einer bevorzugten Ausführungsform umfaßt der hydraulische Hubtransformator eine Dämpfungseinrichtung, um Vibrationen der Nadel zu dämpfen. In a preferred embodiment, the hydraulic lift transformer includes damping means to dampen vibrations of the needle.
Vorteilhafterweise läßt sich die Menge des eingespritzten Gases dadurch besser dosieren und erhöhen.Advantageously, the amount of injected gas can thereby better dose and increase.
In einer Weiterbildung der bevorzugten Ausführungsform ist das abgeschlossene Volumen durch die Dämpfungseinrichtung in mindestens zwei Teilvolumina unterteilt, ist die Dämpfungseinrichtung als Drossel ausgebildet, die eine Fluidverbindung zwischen den mindestens zwei Teilvolumina bildet, und ist die Dämpfungseinrichtung so angeordnet, daß das Fluid durch die Drossel während der Bewegung des Aktors hindurchströmt.In a development of the preferred embodiment, the closed volume is divided by the damping device into at least two sub-volumes, the damping device is designed as a throttle, which forms a fluid connection between the at least two sub-volumes, and the damping device is arranged so that the fluid through the throttle during the movement of the actuator flows through.
Vorteilhafterweise läßt sich eine derartige Dämpfungsvorrichtung für einen hydraulischen Hubtransformator einfach durch ein Loch oder mehrere Löcher umsetzen.Advantageously, such a damping device for a hydraulic lifting transformer can be easily implemented by one or more holes.
In noch einer Weiterbildung der bevorzugten Ausführungsform ist eines der mindestens zwei Teilvolumina als eine hintere Transformatorkammer mit relativ großem Querschnitt ausgebildet, in welcher die hintere Öffnung vorgesehen ist, und ist eines der mindestens zwei Teilvolumina als eine vordere Transformatorkammer mit relativ kleinem Querschnitt ausgebildet, in welcher die vordere Öffnung vorgesehen ist.In a further development of the preferred embodiment, one of the at least two partial volumes is formed as a rear transformer chamber with a relatively large cross section, in which the rear opening is provided, and one of the at least two partial volumes is designed as a front transformer chamber with a relatively small cross section, in which the front opening is provided.
Vorteilhafterweise sind zylindrische Kammern für hydraulische Hubtransformatoren besonders geeignet.Advantageously, cylindrical chambers for hydraulic lifting transformers are particularly suitable.
In noch einer Weiterbildung der bevorzugten Ausführungsform basiert das Fluid auf Silikonöl, Glyzerin, Mineralöl oder synthetischem Öl.In a further development of the preferred embodiment, the fluid is based on silicone oil, glycerol, mineral oil or synthetic oil.
Vorteilhafterweise sind Silikonöl oder Glyzerin, Mineralöl oder synthetisches Öl aufgrund ihrer hohen Viskosität besonders geeignet, um für eine Schwingungsdämpfung zu sorgen.Advantageously, silicone oil or glycerin, mineral oil or synthetic oil are particularly suitable because of their high viscosity to provide vibration damping.
In noch einer Weiterbildung der bevorzugten Ausführungsform ist die Drossel als ein Loch ausgebildet.In a further development of the preferred embodiment, the throttle is formed as a hole.
Vorteilhafterweise können durch ein Loch mit geeigneten Maßen Vibrationen besonders gut unterdrückt werden, ohne den Fluidstrom zu sehr zu behindern.Advantageously, vibrations can be suppressed particularly well through a hole of suitable dimensions without hindering the flow of fluid too much.
In noch einer bevorzugten Ausführungsform ist ein Hubsensor vorgesehen, um einen Hub der Nadel zu erfassen.In yet a preferred embodiment, a stroke sensor is provided to detect a stroke of the needle.
Vorteilhafterweise kann der Hubsensor entweder direkt den Hub der Nadel oder indirekt durch die Verschiebung des Gleitelements messen.Advantageously, the stroke sensor can measure either directly the stroke of the needle or indirectly by the displacement of the sliding element.
In noch einer bevorzugten Ausführungsform ist das abgeschlossene Volumen mit einer der beiden Dichtungskammern über ein Rückschlagventil verbunden.In yet a preferred embodiment, the sealed volume is connected to one of the two seal chambers via a check valve.
Vorteilhafterweise kann durch das Rückschlagventil eine Abnahme der Fluidmenge in den Transformatorkammern verhindert werden.Advantageously, a decrease in the amount of fluid in the transformer chambers can be prevented by the check valve.
In einer Weiterbildung der bevorzugten Ausführungsform weist das Rückschlagventil einen Ventilkanal auf.In a development of the preferred embodiment, the check valve has a valve channel.
In noch einer Weiterbildung der bevorzugten Ausführungsform ist der Ventilkanal in dem Gehäuse ausgebildet.In a further development of the preferred embodiment, the valve channel is formed in the housing.
In noch einer Weiterbildung der bevorzugten Ausführungsform ist der Ventilkanal in dem Nadelbetätigungskolben ausgebildet.In a further development of the preferred embodiment, the valve channel is formed in the needle actuating piston.
In noch einer Weiterbildung der bevorzugten Ausführungsform umfaßt das Rückschlagventil eine Schließkugel und eine Feder.In a further development of the preferred embodiment, the check valve comprises a closing ball and a spring.
In einer Weiterbildung der bevorzugten Ausführungsform ist das Rückschlagventil als Membranventil ausgebildet.In a development of the preferred embodiment, the check valve is designed as a diaphragm valve.
In nach einer bevorzugten Ausführungsform ist die Nadel durch eine aktive Steuerung zur Schwingungsdämpfung ansteuerbar.In a preferred embodiment, the needle is controllable by an active vibration damping control.
Vorteilhafterweise kann eine ideale schwingungsfreie Betätigung des Ventils bei gleichzeitig optimaler Dynamik erreicht werden.Advantageously, an ideal vibration-free operation of the valve can be achieved with optimal dynamics.
Im folgenden wird die Erfindung mit Bezugnahme auf die Zeichnungen näher beschrieben. Es zeigen:In the following the invention with reference to the drawings will be described in more detail. Show it:
Zwischen dem Aktorraum
Der Hubkolben
Wenn sich der Aktor
Aufgrund der hohen Umdrehungszahl des Motors findet der Vorgang des Öffnens und Schließens der Einblasöffnung wiederholt in schnellen Wechseln statt. Dadurch werden die Nadel
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Zuleitungsupply
- 22
- Gehäusecasing
- 33
- Aktorraumactuator chamber
- 44
- Aktoractuator
- 55
- Kanalchannel
- 66
- EinblasraumAir supply
- 77
- Transformatorkammer mit großem QuerschnittTransformer chamber with large cross-section
- 88th
- Transformatorkammer mit kleinem QuerschnittTransformer chamber with a small cross-section
- 99
- Hubkolbenreciprocating
- 1010
- NadelbetätigungskolbenNeedle actuating piston
- 1111
- Dichtungpoetry
- 1212
- Dichtungskammerseal chamber
- 1313
- Dichtungpoetry
- 1414
- Dichtungskammerseal chamber
- 1515
- Leitungmanagement
- 1616
- Drosselthrottle
- 1717
- Nadelneedle
- 1818
- Federfeather
- 1919
- Vorsprunghead Start
- 2020
- Schließkugelclosing ball
- 2121
- Federfeather
- 2222
- Kanalchannel
- 2323
- Hubsensorstroke sensor
- 2424
- Einbuchtungindentation
- 2525
- Drosselthrottle
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007002402.0A DE102007002402B4 (en) | 2006-12-13 | 2007-01-17 | Gas injection device for an internal combustion engine |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006058883.5 | 2006-12-13 | ||
DE102006058883 | 2006-12-13 | ||
DE102007002402.0A DE102007002402B4 (en) | 2006-12-13 | 2007-01-17 | Gas injection device for an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102007002402A1 DE102007002402A1 (en) | 2008-06-19 |
DE102007002402B4 true DE102007002402B4 (en) | 2014-12-31 |
Family
ID=39399847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102007002402.0A Expired - Fee Related DE102007002402B4 (en) | 2006-12-13 | 2007-01-17 | Gas injection device for an internal combustion engine |
Country Status (1)
Country | Link |
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DE (1) | DE102007002402B4 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9709181B2 (en) | 2012-03-16 | 2017-07-18 | Robert Bosch Gmbh | Assembly |
EP3147477B1 (en) | 2015-09-23 | 2018-10-17 | Winterthur Gas & Diesel AG | Gas feeding system and cylinder for a reciprocating piston engine, reciprocating combustion engine, and method for operating same |
EP3015699B1 (en) | 2014-10-31 | 2018-12-05 | Winterthur Gas & Diesel AG | Gas feeding system with a control system and cylinder for a reciprocating piston engine, reciprocating piston engine, and method for operating a reciprocating piston engine |
EP3015679B1 (en) | 2014-10-31 | 2018-12-05 | Winterthur Gas & Diesel AG | Cylinder for a reciprocating piston engine, reciprocating combustion engine, and method for operating same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3015698A1 (en) * | 2014-10-31 | 2016-05-04 | Winterthur Gas & Diesel AG | Gas feeding system with shaft seal and cylinder for a reciprocating piston combustion engine, reciprocating piston combustion engine, and method for operating a reciprocating piston combustion engine |
DE102016205358A1 (en) * | 2016-03-31 | 2017-10-05 | Robert Bosch Gmbh | Injector for injecting a gaseous fuel into a combustion chamber |
EP3470657B1 (en) * | 2017-10-10 | 2020-12-09 | Vitesco Technologies GmbH | Valve assembly, valve assembly arrangement and injection valve |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19940054A1 (en) * | 1999-08-24 | 2001-03-22 | Siemens Ag | Dosing valve |
DE10159749A1 (en) * | 2001-12-05 | 2003-06-12 | Bosch Gmbh Robert | Fuel injection valve for an internal combustion engine comprises a pressure space which contains a hydraulic fluid and, by means of sealing units, is separated from the actuator and fuel spaces |
DE10217594A1 (en) * | 2002-04-19 | 2003-11-06 | Bosch Gmbh Robert | Fuel injection valve for IC engines has throttle gap formed by Laser/erosion drilling, and positioned separate from guide gaps, for cheaper fabrication of gaps |
DE10343086A1 (en) * | 2003-09-17 | 2005-05-19 | Robert Bosch Gmbh | Brenntoffeinspritzventil |
-
2007
- 2007-01-17 DE DE102007002402.0A patent/DE102007002402B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19940054A1 (en) * | 1999-08-24 | 2001-03-22 | Siemens Ag | Dosing valve |
DE10159749A1 (en) * | 2001-12-05 | 2003-06-12 | Bosch Gmbh Robert | Fuel injection valve for an internal combustion engine comprises a pressure space which contains a hydraulic fluid and, by means of sealing units, is separated from the actuator and fuel spaces |
DE10217594A1 (en) * | 2002-04-19 | 2003-11-06 | Bosch Gmbh Robert | Fuel injection valve for IC engines has throttle gap formed by Laser/erosion drilling, and positioned separate from guide gaps, for cheaper fabrication of gaps |
DE10343086A1 (en) * | 2003-09-17 | 2005-05-19 | Robert Bosch Gmbh | Brenntoffeinspritzventil |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9709181B2 (en) | 2012-03-16 | 2017-07-18 | Robert Bosch Gmbh | Assembly |
EP3015699B1 (en) | 2014-10-31 | 2018-12-05 | Winterthur Gas & Diesel AG | Gas feeding system with a control system and cylinder for a reciprocating piston engine, reciprocating piston engine, and method for operating a reciprocating piston engine |
EP3015679B1 (en) | 2014-10-31 | 2018-12-05 | Winterthur Gas & Diesel AG | Cylinder for a reciprocating piston engine, reciprocating combustion engine, and method for operating same |
EP3147477B1 (en) | 2015-09-23 | 2018-10-17 | Winterthur Gas & Diesel AG | Gas feeding system and cylinder for a reciprocating piston engine, reciprocating combustion engine, and method for operating same |
Also Published As
Publication number | Publication date |
---|---|
DE102007002402A1 (en) | 2008-06-19 |
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