EP3615785A1 - Soupape d'insufflation de gaz pour insuffler un gaz combustible dans un moteur à combustion interne, moteur à combustion interne comprenant ladite soupape d'insufflation de gaz, et procédé pour faire fonctionner ledit moteur à combustion interne - Google Patents

Soupape d'insufflation de gaz pour insuffler un gaz combustible dans un moteur à combustion interne, moteur à combustion interne comprenant ladite soupape d'insufflation de gaz, et procédé pour faire fonctionner ledit moteur à combustion interne

Info

Publication number
EP3615785A1
EP3615785A1 EP18716592.3A EP18716592A EP3615785A1 EP 3615785 A1 EP3615785 A1 EP 3615785A1 EP 18716592 A EP18716592 A EP 18716592A EP 3615785 A1 EP3615785 A1 EP 3615785A1
Authority
EP
European Patent Office
Prior art keywords
gas injection
injection valve
stop
internal combustion
combustion engine
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.)
Withdrawn
Application number
EP18716592.3A
Other languages
German (de)
English (en)
Inventor
Friedrich Köskemeier
Florian JOOS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Publication of EP3615785A1 publication Critical patent/EP3615785A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F02M21/0251—Details of actuators therefor
    • 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
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • F02D19/024—Control of components of the fuel supply system to adjust the fuel mass or volume flow by controlling fuel injectors
    • 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
    • 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
    • F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle 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
    • F02M21/0278—Port fuel injectors for single or multipoint injection into the air intake system
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/52—Means for additional adjustment of the rate of flow
    • F16K1/523—Means for additional adjustment of the rate of flow for limiting the maximum flow rate, using a stop
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]
    • 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

Definitions

  • the invention relates to a gas injection valve for injecting a fuel gas in a
  • Internal combustion engine an internal combustion engine with such a gas injection valve and a method for operating an internal combustion engine with such a gas injection valve.
  • a gas injection valve of the type mentioned here is for example from the German
  • a gas injector for direct injection of a gaseous medium is disclosed in a combustion chamber of an internal combustion engine.
  • a gas injection valve of the type discussed here can also be set up for injecting a fuel gas into a charging path of an internal combustion engine, be it by multipoint injection or else in the context of a single point injection into a one
  • Such a gas injection valve has a valve member which is between a closed position and one through a
  • Closed position in the open position can be varied.
  • a pre-pressure upstream of the injected fuel gas quantity a pre-pressure upstream of the injected fuel gas quantity
  • Gas injection valve serve in a fuel gas line, in which case, however, a complex pressure control for the fuel gas line is necessary.
  • Conventional Gaseinblasventile therefore have the disadvantage that they difficult between a no-load operation on the one hand and a
  • Full load operation on the other hand are adjustable and can hardly be designed for both modes suitable. Since the energizing time can not be selected arbitrarily short because otherwise no complete valve opening takes place and the valve member moves only in the ballistic range, it is often not possible to achieve a reasonably low idling speed
  • the invention is based on the object, a gas injection valve, an internal combustion engine with such Gaseinblasventil and a method for operating such
  • the object is achieved in particular by providing a gas injection valve of the type mentioned above, which is characterized in that the maximum stroke of the valve member is adjustable during operation of the gas injection valve.
  • an additional parameter is provided which can be used for the operation of an internal combustion engine. This not only allows a defined idling operation with small quantity dispersion, in particular by setting a minimum maximum stroke, and a full load operation especially when setting a maximum maximum stroke, but also optimizing the Bestromungs conservator for controlling the Gaseinblasventils to gas dynamic conditions in the internal combustion engine, in particular to a mixture formation in to optimize at least one combustion chamber of the internal combustion engine. Since a further parameter for setting the injected fuel gas quantity is available, can on the form in the
  • Fuel gas line can be omitted as a parameter for quantity control. Thus, it requires no elaborate gas pressure control more, but sufficient to use a simple fixed pressure regulator for the fuel gas line, in which in particular a constant form can be adjusted. Furthermore, aging effects, for example an increase in the flow rate of the gas injection valve over its lifetime, can be compensated, preferably compensated, by suitably setting the maximum stroke.
  • valve member Under a closed position of the valve member is understood here a functional position in which a flow path for fuel gas is blocked by the gas injection valve.
  • Valve member is preferably biased in the closed position and can against them Bias to be shifted to the open position.
  • an open position is accordingly understood a functional position of the valve member, in which this releases a defined by the maximum stroke flow cross-section for fuel gas through the gas injection valve.
  • the gas injection valve is in particular designed to inject fuel gas into the internal combustion engine in the open position.
  • Under a maximum stroke is understood by a displacement mechanism for the valve member maximally bewirkbarer stroke, which may be defined for example by a stop for the valve member. To distinguish this is the fact that the valve member by its associated
  • Displacement mechanism is not necessarily maximum, so up to the maximum stroke, must be opened. Rather, it is also possible, the Bestromungs- or driving times for the
  • Gas injection valve to be chosen so that the valve member does not cover the full path to the maximum stroke and thus to the specific open position, where it can be moved, for example, in a ballistic area.
  • the maximum lift characterizes the opening of the gas injection valve which is as far as possible with the displacement mechanism at the momentary setting of the maximum stroke. Accordingly, under the specific open position, a position of the maximum open position at the specific, currently set maximum stroke is determined
  • Valve member understood, in particular, the displacement of the valve member is limited. So it is in the open position no further displacement of the valve member by the
  • the maximum stroke is adjustable during operation of the gas injection valve means, in particular, that during operation of an internal combustion engine having the gas injection valve, preferably on a time scale of less than 1 second, in particular on a time scale, which allows fully transient adjustment of the maximum stroke during operation of the internal combustion engine , is variable.
  • the maximum stroke is therefore by no means only adjustable in the manufacture, adjustment or maintenance of the gas injection valve, but in its operation, so that it can be used as a parameter for controlling or regulating the internal combustion engine.
  • the gas injection valve has a first stop against which the valve member strikes in the open position.
  • the first stop defines the maximum stroke.
  • the first stop is displaceable relative to a housing of the gas injection valve, which can be arranged, in particular, in a manner fixed to the engine of an internal combustion engine, in the stroke direction of the valve member, in particular in order to set the maximum stroke.
  • the first stop is in particular between a minimum position, the corresponds to a minimum maximum stroke, and a maximum position corresponding to a maximum maximum stroke, displaceable. On the variation or setting of the first stop thus the maximum stroke can be adjusted.
  • the valve member preferably abuts in the open position on the first stop, so that its position defines the widest possible opening of the valve and thus at the same time the open position and the maximum stroke.
  • Stop member is arranged, wherein the stop member between a relative to the housing of the gas injection valve spatially fixed second stop and a spatially fixed to the housing arranged third stop is displaceable.
  • the second stop defines a minimum position for the first stop and thus at the same time the minimum maximum stroke.
  • the third stop defines a maximum position for the first stop and, at the same time, the maximum maximum stroke.
  • the stop member can be displaced in a defined and reproducible manner between the second stop and the third stop, preferably in a plurality of discrete or continuous positions, so correspondingly also the maximum stroke between the minimum maximum stroke and the maximum maximum stroke a plurality of discrete or continuous values can accept.
  • the Gasemblasventil has a fourth stop for the valve member, wherein the fourth stop defines a sealing seat of the valve member, to which this in the
  • valve member is urged in the closed position, preferably under bias against the fourth stop.
  • the Gasemblasventil has a first displacement mechanism which is adapted to displace the valve member between the closed position and the open position.
  • the first displacement mechanism is preferably designed as an electromagnetic displacement mechanism, wherein it may in particular comprise an electromagnet, which cooperates with a magnetic armature or armature.
  • the valve member is designed as an armature or arranged on the armature, wherein the electromagnet is formed and arranged relative to the valve member such that it moves the valve member from the closed position to the open position can shift if it is energized.
  • the gas injection valve preferably has a second displacement mechanism for displacing the first stop, in particular of the stop member.
  • Displacement mechanism is preferably arranged to displace the stop member between the minimum position and the maximum position.
  • Displacement mechanism it is preferably possible to adjust the maximum stroke reproducible, accurate and / or automated.
  • Displacement mechanism a controllable rotary drive, preferably an electric motor, which cooperates with a thread, in particular with a fine thread, for adjusting the first stop.
  • a controllable rotary drive preferably an electric motor
  • the position of the first stopper is easy, accurate and reproducible adjustable.
  • the gas injection valve has a displaceable together with the stop member adjusting element having a first thread which meshes with a relative to the housing of the gas injection valve spatially fixed second thread, wherein the rotary drive is arranged and arranged to rotate the adjusting element.
  • the first thread is preferably one
  • the second thread is preferably an internal thread.
  • both the first thread and the second thread are each fine thread.
  • Rotary drive rotatably drives the adjustment, this can mesh with its first thread with the second thread and thus cause a displacement of the stop member in the stroke direction of the valve member. This can be done very accurately and reproducibly, especially when using a fine thread.
  • the rotary drive is in particular operatively connected to the adjusting element in order to drive this rotationally. It is preferably provided that the adjusting element is the stop member or part of the stop member. In particular, the stop member may be formed as an adjusting element and have the first thread, or it can with the
  • Adjustment connected or be part of the adjustment In this way, a very simple construction of the gas injection valve is possible at the same time cost-effective, accurate and reproducible design.
  • the object is also achieved by providing an internal combustion engine having a gas injection valve according to one of the previously described embodiments. In connection with the internal combustion engine, in particular, the advantages that have already been explained in connection with the gas injection valve.
  • the internal combustion engine preferably has at least one combustion chamber, particularly preferably a plurality of combustion chambers, wherein the at least one combustion chamber
  • Gas injection valve is assigned according to one of the embodiments described above.
  • each combustion chamber of a plurality of combustion chambers it is possible for each combustion chamber of a plurality of combustion chambers to be assigned in each case a separate gas injection valve, which can be controlled in particular independently of the other gas injection valves.
  • Combustion chambers such as a combustion chamber group or cylinder bank, a common Gaseinblasventil is assigned.
  • the gas injection valve may be arranged and arranged on the internal combustion engine to realize a multi-point injection, a single-point injection or a direct injection of fuel gas.
  • the internal combustion engine is preferably designed as a reciprocating engine. It is possible that the internal combustion engine is arranged to drive a passenger car, a truck or a commercial vehicle. In a preferred embodiment, the internal combustion engine is the drive in particular heavy land or water vehicles, such as mine vehicles, trains, the internal combustion engine in a
  • Locomotive or a railcar is used, or by ships. It is also possible to use the internal combustion engine to drive a defense vehicle, for example a tank.
  • An exemplary embodiment of the internal combustion engine is preferably also stationary, for example, for stationary power supply in emergency operation,
  • the internal combustion engine in this case preferably drives a generator. Also a stationary application of
  • Internal combustion engine for driving auxiliary equipment, such as fire pumps on oil rigs is possible. Furthermore, an application of the internal combustion engine in the field of promoting fossil raw materials and in particular fuels, for example oil and / or gas, possible. Also a use of the internal combustion engine in the industrial sector or in Construction area, for example in a construction or construction machine, for example in a crane or an excavator, is possible.
  • the internal combustion engine is preferably designed as a diesel engine, as a gasoline engine, as a gas engine for operation with natural gas, biogas, special gas or another suitable gas. In particular, when the internal combustion engine is designed as a gas engine, it is suitable for use in a cogeneration plant for stationary power generation.
  • the task is finally solved by a method for operating a
  • Embodiments is created. This is a benign basestock of gas
  • Operating point dependent set by adjusting the maximum stroke of the valve member of the gas injection valve are preferably drive times, that is, in particular
  • Mixture formation selected in at least one combustion chamber of the internal combustion engine.
  • An operating point-dependent setting is understood in particular to mean a setting which depends on an operating point of the internal combustion engine, in particular on a load point thereof, preferably in particular on a momentary torque on the one hand and a momentary rotational speed on the other hand. Because the maximum lift of the
  • Gas injection valve is adjustable and thus is available as a parameter for adjusting the Häbasenden fuel gas amount, it is possible to select the activation times for the gas injection valve, in particular regardless of the Häbasende fuel gas and rather to vary in terms of optimized mixture formation in the at least one combustion chamber.
  • a start of energization, an energization end and / or an energization duration for the gas injection valve, in particular for the first one, are called activation times
  • Displacement mechanism understood. According to one embodiment of the invention, it is provided that upstream of the
  • Gas injection valve in particular immediately upstream of the same, in a fuel gas line of the internal combustion engine - a time -, and in particular operating point independent - constant fuel gas pressure is set.
  • a constant fuel gas pressure is in particular a fuel gas pressure that does not depend on a current operating point of the Internal combustion engine varies. This can be dispensed with a complex gas pressure control, but a simple fixed pressure regulator for constant control of the fuel gas pressure is sufficient.
  • Flow cross-section and / or static flow of Gaseinblasventils is preferably the operating point dependent, that is, in particular, depending on a current speed and a current load of the engine calculated fuel gas amount, in particular fuel gas mass used. It is possible, the maximum stroke and thus the current lifting height for the valve member taking into account the form in the fuel gas line, a measured in the charging path back pressure for the fuel gas, ie in particular a boost pressure, preferably measured in the intake manifold, and a - preferably measured - instantaneous fuel gas temperature to be determined, wherein the maximum stroke is preferably read from a valve map. In particular, a flow rate of the gas injection valve in dependence on the maximum lift and the instantaneous fuel gas density can be stored in the valve map. From the operating point dependent required
  • Fuel gas quantity, the flow to be adjusted and thus also the adjusted stroke height - that is, the maximum stroke - are calculated taking into account the aforementioned parameters.
  • an internal combustion engine is operated with a plurality of combustion chambers.
  • the activation times and / or the maximum lift for each gas injection valve is / are set separately.
  • the aforementioned parameters that is to say in particular the activation times and / or the maximum lift, can be used to equalize the different combustion chambers of the internal combustion engine.
  • Gas injection valve and the internal combustion engine which are explained explicitly or implicitly in connection with the method, are preferably individually or combined with each other features of a preferred embodiment of the Gaseinblasventils and / or
  • valve member 5 which is displaceable between a closed position in which a flow path for fuel gas is closed by the Gasemblasventil 3, and a by a maximum lift of the
  • Valve member 5 certain open position, in which a flow path for fuel gas is released by the gas injection valve 3. It is provided that the maximum stroke of the valve member 5 in the operation of the gas injection valve 3 is adjustable. In this way, the adjustment of the maximum stroke of the valve member 5 can be used as a parameter for controlling the quantity of fuel gas to be injected into the internal combustion engine 1. This allows in particular a choice of Bestromungs- or An Kunststoffculture for the gas injection valve 3, regardless of the Häbasenden fuel gas quantity, so that they can be selected in particular optimized for a mixture formation in a combustion chamber 7 of the internal combustion engine 1.
  • the gas injection valve 3 has a first stop 11, on which the valve member 5 in the
  • the first stop 11 defines the maximum stroke, wherein it can be displaced relative to a housing 13 of the gas injection valve 3 that can be arranged, in particular, fixed to the engine 1 in the stroke direction of the valve member 5.
  • the first stop 11 is between a minimum position shown in the figure, which defines a minimum maximum stroke, and a maximum position, which a maximum
  • the first stop 11 is arranged on a stop member 15, which is displaceable between a fixed relative to the housing 13 arranged second stop 17 and a fixed relative to the housing 13 arranged fixed third stop 19.
  • the second stop 17 and the third stop 19 are preferably arranged on the housing 13.
  • Stop 17 defines the minimum position for the first stop 11, wherein the third stop 19 defines the maximum position for the first stop 11.
  • the gas injection valve 3 also has a fourth stop 21, which is preferably designed as a sealing seat for the valve member 5.
  • the gas injection valve 3 here has a first displacement mechanism 23 for displacing the valve member 5 between the closed position and the open position, and a second Displacement mechanism 25 for displacing the first stop 11, in particular of the stop member 15, between the minimum position and the maximum position.
  • the first displacement mechanism 23 is preferably formed electromagnetically, wherein it has in particular an electromagnet 27, wherein the electromagnet 27 is preferably arranged on the stop member 15 or formed as a stop member 15 and in particular with the stop member 15 is displaced, and an armature 29 which on the valve member 5 is arranged. It is also possible that the valve member 5 is formed as an anchor 29.
  • the armature is in particular a magnet armature, which is displaceable by the electromagnet 27.
  • the first stopper 11 defines a maximum stroke position of the first stopper mechanism 11 achievable with the first displacement mechanism 23 at a current position of the first stopper 11
  • Valve member 5 and thus the maximum stroke and the open position.
  • the second displacement mechanism 25 preferably has a controllable rotary drive 31, which is preferably designed as an electric motor, wherein the rotary drive 31 with a thread 33, which is designed in particular as a fine thread, cooperates to adjust the first stop 11.
  • the gas injection valve 3 in particular a displaceable together with the stop member 15 adjustment 35, which a first thread 33.1, here namely a
  • second thread 33.2 which is here in particular formed as an internal thread, meshes, wherein the rotary drive 31 is arranged and arranged to drive the adjusting element 35 rotatably.
  • the stop member 15 is formed as adjusting 35.
  • the adjusting element 35 is arranged on the stop member 15 or part of the stop member 15. If the adjusting element 35 is rotated by the rotary drive 31, its first thread 33.1 cooperates with the second thread 33.2, so that the stop member 15 is displaced together with the first stop 11 in the lifting direction of the valve member 5.
  • the unit can be displaced from the rotary drive 31 and the stop member 15 between the second stop 17 and the third stop 19, whereby the first stop 11 between the Minimum position and the maximum position is shifted.
  • the maximum stroke of the gas injection valve 3 can be adjusted by activating the rotary drive 31. This can in particular during the operation of the gas injection valve 3 and thus also the
  • a gas volume of the fuel gas to be injected is dependent on the operating point, that is, depending on a current operating point of the internal combustion engine 1, by adjusting the
  • activation times or energization times for the gas injection valve 3 are preferably selected depending on the operating point, that is to say as a function of an instantaneous operating point of the internal combustion engine 1 with a view to optimized mixture formation in the at least one combustion chamber 7 of the internal combustion engine 1. It is preferably provided that the upstream of the gas injection valve 3 in a
  • Internal combustion engine 1 is varied.
  • an internal combustion engine 1 is operated with a plurality of combustion chambers 7, wherein each combustion chamber 7 or each combustion chamber group of combustion chambers 7 is associated with a particular separate gas injection valve 3.
  • the activation times or energization times for the gas injection valves 3 and / or the maximum stroke of the valve member 5 are set separately for each gas injection valve 3 of the internal combustion engine 1. In this way, in particular a combustion chamber equalization for the internal combustion engine 1 can be performed.
  • the gas injection valve 3 is preferably designed for Mehrisindüsung or
  • the gas injection valve 3 is arranged for direct injection of fuel gas into the combustion chamber. 7
  • Volume control of normallybasenden fuel gas amount can be set optimal Bestromungsdauer for the gas injection valve 3 in the entire operating range of the internal combustion engine 1, wherein the Bestromungs Forum can differ operating point dependent.
  • Optimal energization times can be selected in each case for an idling operation and for a full-load operation of the internal combustion engine 1.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

L'invention concerne une soupape à insufflation de gaz (3) pour insuffler un gaz de combustion dans un moteur à combustion interne (1), la soupape comprenant un obturateur (5), qui est déplaçable entre une position fermée et une position ouverte définie par une course maximale de l'obturateur (5). La course maximale de l'obturateur (5) peut être réglée lors du fonctionnement de la soupape d'insufflation de gaz (3).
EP18716592.3A 2017-04-28 2018-04-05 Soupape d'insufflation de gaz pour insuffler un gaz combustible dans un moteur à combustion interne, moteur à combustion interne comprenant ladite soupape d'insufflation de gaz, et procédé pour faire fonctionner ledit moteur à combustion interne Withdrawn EP3615785A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017207276.8A DE102017207276B4 (de) 2017-04-28 2017-04-28 Gaseinblasventil zum Einblasen eines Brenngases in eine Brennkraftmaschine, Brennkraftmaschine mit einem solchen Gaseinblasventil, und Verfahren zum Betreiben einer solchen Brennkraftmaschine
PCT/EP2018/058800 WO2018197180A1 (fr) 2017-04-28 2018-04-05 Soupape d'insufflation de gaz pour insuffler un gaz combustible dans un moteur à combustion interne, moteur à combustion interne comprenant ladite soupape d'insufflation de gaz, et procédé pour faire fonctionner ledit moteur à combustion interne

Publications (1)

Publication Number Publication Date
EP3615785A1 true EP3615785A1 (fr) 2020-03-04

Family

ID=61913165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18716592.3A Withdrawn EP3615785A1 (fr) 2017-04-28 2018-04-05 Soupape d'insufflation de gaz pour insuffler un gaz combustible dans un moteur à combustion interne, moteur à combustion interne comprenant ladite soupape d'insufflation de gaz, et procédé pour faire fonctionner ledit moteur à combustion interne

Country Status (5)

Country Link
US (1) US20200132021A1 (fr)
EP (1) EP3615785A1 (fr)
CN (1) CN110537013A (fr)
DE (1) DE102017207276B4 (fr)
WO (1) WO2018197180A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911827A1 (de) * 1969-03-08 1970-09-17 Bosch Gmbh Robert Magnetventil
JPS60108560A (ja) * 1983-11-16 1985-06-14 Toyota Central Res & Dev Lab Inc 燃料噴射制御法及び装置
EP0660016B1 (fr) * 1993-12-17 2000-06-07 Eaton S.A.M. Electrovanne ajustable
GB2335233A (en) * 1998-02-24 1999-09-15 Hoerbiger Ventilwerke Gmbh Adjustable electromagnetic gas valve eg for i.c. engine fuel injection
DE19963926A1 (de) 1999-12-31 2001-07-12 Bosch Gmbh Robert Steuerventil für eine Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen mit verstellbarem Hubanschlag
DE10206034A1 (de) 2002-02-14 2003-08-21 Bayerische Motoren Werke Ag Einrichtung zum Einbringen von Kraftstoff zur Verbrennung in einer Brennkraftmaschine
DE10249161B3 (de) * 2002-10-22 2004-01-29 Robert Bosch Gmbh Vorrichtung zur Einstellung eines Ankerhubs eines Magnetventils
CA2809249C (fr) * 2013-03-15 2014-03-11 Westport Power Inc. Appareil de commande de soulevement d'un element de soupape
DE102014207182A1 (de) 2014-04-15 2015-10-15 Robert Bosch Gmbh Direkteinblasendes Gasventil
DE102015214182A1 (de) * 2015-07-27 2017-02-16 Robert Bosch Gmbh Gaseinblasventil zur Dosierung von gasförmigen Kraftstoffen
CN105508082B (zh) * 2015-11-27 2018-07-24 哈尔滨工程大学 增压无泄漏电磁控制式燃气喷射装置

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US20200132021A1 (en) 2020-04-30
WO2018197180A1 (fr) 2018-11-01
CN110537013A (zh) 2019-12-03
DE102017207276B4 (de) 2019-01-24

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