JP2010209908A - Ignition device for gas engine, gas engine equipped therewith, and method of operating the gas engine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ignition device for a gas engine capable of changing an ignition time point within a wide regulation area, in particular, capable of advancing remarkably the time point with respect to TDC, and to provide a gas engine equipped with the ignition device, and a method of operating the gas engine. <P>SOLUTION: The ignition device includes an injection device for injecting an ignition gas jet based on a combustion gas mixture, into a precombustion chamber of a cylinder of the gas engine, an ignition gas jet controller for starting and stopping gas supply to the injection device, and a pressure control system for controlling gas pressure of the combustion gas mixture, in the ignition device for the gas engine, the gas engine equipped with the ignition device, and the method of operating the gas engine. The pressure control system is set to regulate the gas pressure in response to an engine load of the gas engine, and in response to the ignition time point of the cylinder of the gas engine. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gas engine ignition device, a gas engine including the ignition device, and a method for operating the gas engine.

  A gas engine refers to an internal combustion engine that can use, for example, natural gas, liquid gas, wood gas, biogas, disposal site gas, underground explosive gas, hydrogen, and the like as fuel, instead of liquid fuel. Gas engines are used, for example, in stationary devices for cogeneration or as ship drive engines.

  In recent years, there have been provided ignition methods capable of operating a gas engine with high efficiency, high output, and low emission. This ignition method is known as PGI (Performance Gas Injection) ignition method, in which a combustion gas mixture or ignition gas is injected at a high pressure into a precombustion chamber of a cylinder of a gas engine, and the ignition gas is heated at a high temperature in the precombustion chamber, For example, it is performed by igniting a glow plug. In ignition gas combustion, the ignition gas expands and ignites the combustion gas mixture fed into the main combustion chamber through the connection opening to the main combustion chamber of the cylinder.

  In the current PGI ignition method, the supply pressure used for ignition gas injection is constant, and the amount of ignition gas is controlled only by the ignition gas injection duration. The problem here is that the operating window of the gas engine is very narrow because, for example, when the operating conditions are different, it is not possible to sufficiently respond, for example, to advance the ignition timing. This is explained by the fact that even a slight shift in the injection time point has a great influence on the temporary gas mixture formation in the precombustion chamber, since the injection takes place in the region of the maximum pressure gradient on the compression curve. .

  Thus, if the injection window is uncontrolled (ie, ignition gas pressure and injection duration is constant), the temporary lambda in the pre-combustion chamber is very rapidly less than 1 (Lambda << 1) when the ignition time is early. There is a possibility. If this happens, not all of the ignition gas is oxidized in the pre-combustion chamber and the reaction in the pre-combustion chamber may become very inactive, so if the combustion in the main combustion chamber is prolonged as a result of a weak pre-reaction in the pre-combustion chamber The remaining ignition gas may remain in the pre-combustion chamber at a certain rate.

  Furthermore, if lambda is less than 1 (Lambda << 1), the reaction or flame front in the pre-combustion chamber can disappear due to very extreme concentration non-uniformities (too rich in areas such as glow plugs or hot surfaces) There is sex. The unburned part of the combustion gas can lead to premature ignition during the next compression stroke and thereby misfire in the main combustion chamber if the concentration is appropriate. Such ignition failures are usually “self-conserving” if the injection conditions are not changed, ie the precombustion chamber no longer ignites correctly. Such a condition can lead to shutdown or shutdown of the entire gas engine and possibly engine damage.

  In the current PGI ignition method, the ignition point change is limited due to such a tendency of ignition failure. However, if the ignition timing can be changed, especially if the ignition timing can be advanced, the combustion center can be moved further in the direction of top dead center (TDC), which is very important for improving the efficiency of the gas engine. It is thought that it will be.

  From Patent Document 1, a gas engine is known in which ignition of a gas fuel / air mixture is performed on a hot surface of a glow plug in a pre-combustion chamber of a cylinder of the gas engine.

  Patent Document 2 describes ignition oil injection control / adjustment of a gas engine.

German Patent No. 10217996 German Patent No. 19621297 German patent 102007019882 specification

  An object of the present invention is to provide an ignition device for a gas engine that can change the ignition timing within a wider adjustment range, and in particular, can be greatly accelerated with respect to TDC. It is a further object of the present invention to provide a gas engine with such an ignition device and a method for operating such a gas engine.

  The above problem can be solved by the ignition device according to claim 1, the gas engine according to claim 7, or the method according to claim 9. Developments of the invention are defined by the respective dependent claims.

  According to a first aspect of the present invention, there is provided an ignition device for a gas engine, wherein the ignition device is an injection device for injecting an ignition gas jet based on a combustion gas mixture into a precombustion chamber of a cylinder of the gas engine, An ignition gas jet control device for starting and stopping gas supply to the injection device and a pressure control system for controlling the gas pressure of the combustion gas mixture for the injection device are provided. According to the invention, the pressure control system is set to adjust the gas pressure according to the engine load of the gas engine and according to the ignition timing of the cylinder of the gas engine.

  With the ignition device constructed according to the present invention, the operating window of the gas engine can be greatly expanded, so that variable ignition time points (especially early ignition time points) can also be realized, and accordingly higher efficiency can be realized. .

  This can be achieved in particular because the pressure control system according to the invention adjusts the gas pressure according to the engine load of the gas engine and according to the ignition timing. It provides on the one hand sufficient gas pressure for the ignition gas depending on the engine load, and on the other hand compensates for gas pressure errors (gas pressure for the ignition gas too high or too low) caused by the ignition point movement. Is done.

  Thereby, for example, when the ignition timing is advanced, it is possible to reliably avoid that the ignition gas becomes rich (temporarily too low in lambda). In other words, the ignition device keeps the lambda within an allowable range or an optimal range, so that, for example, early ignition and a misfire can be reliably avoided. Therefore, shutdown or stop of the gas engine and potential engine damage can be avoided with high reliability.

  In order to realize the pressure control system of the present invention, for example, it is possible to form a difference between the gas pressure adjusted according to the engine load and the gas pressure of the ignition gas adjusted according to the ignition timing. . This can be done, for example, with an electronic pressure control unit that processes the corresponding pressure signal in a comparator and controls or adjusts the gas pressure based on the pressure signal obtained in the comparator.

  According to an embodiment of the ignition device of the present invention, the pressure control system includes a first control unit for adjusting a gas pressure according to an engine load of the gas engine, and ignition of a cylinder of the gas engine. A second control unit is provided for making the gas pressure adjustable according to the time.

  With the embodiment of the ignition device according to the invention, the intended control effect, in particular the adjustment effect, can be achieved with simple and robust components. For example, according to this embodiment, it is preferable to provide two separate pressure control valves for each control unit.

  Furthermore, this embodiment of the present invention has the advantage that the two controllers behave redundantly and / or complement each other as needed or depending on the operating conditions.

  According to a further embodiment of the ignition device of the present invention, the ignition device further comprises an ignition gas reservoir, and the first control unit of the pressure control system includes a first pressure control device and a second pressure. And a first pressure control device having an inlet for fluid connection to a high pressure source of combustion gas mixture and an outlet fluidly connected to the ignition gas reservoir, wherein the second pressure The control device has an inlet fluidly connected to the ignition gas reservoir and an outlet fluidly connected to a combustion gas mixture low pressure source.

  According to this embodiment of the ignition device of the present invention, the ignition gas reservoir is preferably used as an element for forming a pressure difference defined by the first and second control units. Furthermore, the ignition gas reservoir keeps the ignition gas at the current ignition gas pressure regulated by the pressure control system.

  According to a further embodiment of the ignition device of the present invention, the pressure control system is configured to increase the gas pressure to a given engine load gas pressure when the engine load increases and the ignition timing is relative to the preceding ignition timing. The engine load gas pressure is set to be lowered to a given ignition point gas pressure to be supplied to the injection device.

  With this embodiment of the ignition device of the present invention, when the engine load increases, the ignition gas pressure becomes too high, and thereby the amount of ignition gas becomes too high, so that the temporary lambda becomes too small, The related disadvantages are avoided in a simple manner.

  According to a further embodiment of the ignition device of the present invention, the ignition gas jet control device is set to adjust the injection duration of the injection device according to the ignition timing of the cylinder of the gas engine.

  According to this embodiment of the ignition device of the present invention, if the engine control is properly adjusted, the temporary mixture generation in the pre-combustion chamber can preferably be controlled or adjusted more accurately and flexibly.

  According to one embodiment of the ignition device of the present invention, the ignition gas jet control device is set to shorten the injection duration of the injection device when the ignition time is temporarily advanced with respect to the preceding ignition time. Has been.

  As a result, when the ignition timing is advanced, the injection amount can be reduced instead of or in addition to the pressure control, and thus, it is preferable to avoid over-riching of the ignition gas in the pre-combustion chamber. It is possible to contribute, and it is guaranteed that the redundancy improves the driving safety and the adjustment accuracy.

  According to a second aspect of the invention, there is provided a gas engine comprising an ignition device according to any one or all of the embodiments of the invention, the gas engine comprising an engine load signal representing the engine load and a current An engine control device for providing an ignition timing signal representing an ignition timing, and because the pressure control system is connected to the engine control device, the pressure control system causes the engine load signal and the An ignition timing signal can be supplied for adjusting the ignition gas pressure.

  Since the gas engine according to the present invention includes the ignition device according to the present invention according to any one or all of the above-described embodiments, it has the above-mentioned advantages.

  According to one embodiment of the gas engine of the present invention, since the ignition gas jet control device is connected to the engine control device, the ignition gas jet control device is supplied with an ignition time signal for adjusting the injection duration time. can do.

  In gas engines implemented in this way and by adjusting the engine control accordingly, the temporary mixture production in the pre-combustion chamber is additionally and more precisely controlled or adjusted, so that the lambda continues. Is optimal. Preferably, the ignition gas jet controller behaves redundantly and / or complementary to the pressure control system. The ignition gas jet control device can be realized in a single element, which can be mounted, for example, screwably, to the cylinder head of the gas engine, preferably together with a pre-combustion chamber.

  When suitably implemented, the ignition device and the engine control device can preferably be provided as a unit, in which all necessary eigenvalues / parameters / functions can be stored. Thereby, for example, a conventional gas engine can be retrofitted easily and inexpensively.

  According to a third aspect of the present invention, in a method of operating a gas engine of the present invention according to any one or all of the above embodiments of the present invention, the current engine load and the current ignition timing of the gas engine are determined. A combustion gas mixture is provided for the injector, and a first gas pressure of the combustion gas mixture is adjusted by the pressure control system in response to the current engine load, and the first of the combustion gas mixture A gas pressure is corrected to a second gas pressure by the pressure control system in accordance with the current ignition timing, and a combustion gas mixture having the second gas pressure is controlled by an ignition gas jet control device and the injection device. The combustion gas mixture having the second gas pressure is injected in the form of an ignition gas jet into the precombustion chamber of the cylinder of the gas engine.

  With the method of the invention, the operating window of the gas engine can be greatly extended, so that variable ignition timings (especially early ignition timings) and also higher efficiency can be realized.

  This is achieved in particular in the method according to the invention in that the pressure control system controls the gas pressure of the ignition gas according to the engine load of the gas engine and according to the ignition timing. Thereby, on the one hand, the gas pressure can be sufficiently provided to the ignition gas depending on the engine load, and on the other hand, the gas pressure error caused by the ignition point movement (the gas pressure for the ignition gas is too high or too low) ) Can be offset.

  As a result, for example, when the ignition timing is advanced, it is possible to eliminate over-riching of the ignition gas (temporarily too low lambda) with high reliability. In other words, the ignition device keeps the lambda within an allowable range or an optimal range, so that, for example, early ignition and a misfire can be reliably avoided. Thereby, shutting down or stopping the gas engine and potential engine damage can be reliably avoided.

  According to one embodiment of the method of the present invention, the pressure control system causes the reference value of the first gas pressure to be increased when the engine load increases, to be decreased when the engine load decreases, and the pressure The reference value of the second gas pressure is lowered by the control system when the current ignition time is temporarily advanced with respect to the previous ignition time, and the current ignition time is temporarily set with respect to the previous ignition time. Increased when late.

  With this embodiment of the method according to the invention, it is possible to guarantee the optimum lambda for ignition at all times in a simple and reliable manner, for example by the formation of differences applied to both reference values.

  According to a further embodiment of the method of the present invention, the ignition gas jet control device controls the supply of the combustion gas mixture having the second gas pressure to the injection device, whereby the combustion gas mixture or the ignition gas mixture Is controlled in accordance with the current ignition timing.

  This embodiment of the method of the present invention preferably allows more optimal and flexible control or adjustment of the temporary mixture generation in the pre-combustion chamber, thereby achieving optimal lambda. Can do. At this time, the ignition gas jet control device can preferably behave redundantly and / or complementary to the pressure control system.

  According to a further embodiment of the method of the invention, the supply of the combustion gas mixture having the second gas pressure by the ignition gas jet control device to the injection device is such that the ignition time is temporary relative to the previous ignition time. If the ignition timing is temporarily delayed with respect to the preceding ignition timing, it is shortened.

  Preferably according to this embodiment of the invention, it is possible to influence the amount of ignition gas alternatively or additionally to the control by the pressure control system, so that, for example, if the ignition point is advanced, the ignition gas It is possible to avoid relative over-riching of the mixture.

2 is a schematic diagram of a partial view of a gas engine according to embodiments of the present invention. FIG.

  Hereinafter, the present invention will be described in detail with reference to preferred embodiments and accompanying drawings.

  FIG. 1 schematically shows a part of a gas engine 1 according to a plurality of embodiments of the present invention. The gas engine 1 includes a combustion gas supply device 70, a plurality of combustion cylinders 90 (only one is shown in the figure), and an engine control device 100.

  Each combustion cylinder (hereinafter simply referred to as a cylinder) 90 is provided with a precombustion chamber 80 having overflow openings 81 and 82 to the main combustion chamber 91 of the cylinder 90. Further, each precombustion chamber 80 is provided with a heating device 83 as described in Patent Document 1 or Patent Document 3, for example. Furthermore, each cylinder 90 is provided with one ignition device 10.

  According to this embodiment, the ignition device 10 is configured as a valve that can be electrically controlled, and forms a first controller, a first pressure control valve 20 (first pressure control device), an ignition gas reservoir 30, an ignition gas. The jet control device 40, the injection device 50, and a second pressure control valve 60 (second pressure control device) that is configured as an electrically controllable valve and forms a second control unit according to this embodiment. ing. The first pressure control valve 20, the ignition gas reservoir 30, and the second pressure control valve 60 constitute one pressure control system.

  The combustion gas supply device 70 includes a low pressure region 71 such as a gas tank, which constitutes a combustion gas mixture low pressure source, a high pressure compressor 72, and a high pressure reservoir 73 which constitutes a combustion gas mixture high pressure source. The low pressure region 71 is fluidly connected to the inlet (not shown) of the high pressure compressor 72 via the gas line 71a, and the outlet (not shown) of the high pressure compressor 72 is fluidly connected to the high pressure reservoir 73 via the gas line 72a. Has been. Thereby, the combustion gas mixture can be supplied into the high-pressure reservoir 73 through the high-pressure compressor 72 at a high pressure.

  The inlet (not shown) of the first pressure control valve 20 is fluidly connected to the high pressure reservoir 73 via a gas line 73a, and the outlet (not shown) of the first pressure control valve 20 is connected via the gas line 20a. The ignition gas reservoir 30 is fluidly connected.

  The inlet (not shown) of the second pressure control valve 60 is fluidly connected to the ignition gas reservoir 30 via the gas line 30a, and the outlet (not shown) of the second pressure control valve 60 is connected via the gas line 60a. Fluidly connected to the low pressure region 71.

  According to this embodiment, the ignition gas jet control device 40 configured as an electrically controllable valve is fluidly connected to the ignition gas reservoir 30 via the gas line 30b on the inlet side and via the gas line 40a on the outlet side. , Fluidly connected to an injection device 50 configured as an injection nozzle.

  Since the injection device 50 is set in the precombustion chamber 80 on the outlet side, the ignition gas jet 51 based on the combustion gas mixture can thereby be injected into the precombustion chamber 80 of the cylinder 90 of the gas engine 1. For example, as described in Patent Document 1 or Patent Document 3, the ignition gas jet 51 is then ignited by the heating device 83 in the precombustion chamber 80, and thereby the combustion gas mixture injected into the main combustion chamber 91. Ignition and thereby an explosion stroke or power stroke of a piston (not shown) of the cylinder 90.

  The ignition gas jet control device 40 starts and stops gas supply to the injection device 50.

  Information relating to the current engine load ML, such as information relating to the supply air pressure, or information relating to the precombustion chamber pressure PV is supplied to the engine control device 100 via the signal lines 101 and 102.

  The engine controller 100 is integrated with appropriate algorithms and parameters that represent the relationship between engine load, ignition timing, and gas pressure for injection into the precombustion chamber 80 in software and / or hardware form. .

  As a result, the engine control device 100 supplies an engine load signal representing the engine load ML to the first pressure control valve 20 via the data bus line 103, and the second pressure control via the data bus line 104. The valve 60 is supplied with an ignition timing signal representing the current ignition timing.

  Further, since the ignition gas jet control device 40 is connected to the engine control device 100 via the data bus line 105, the ignition gas jet control device 40 is controlled by the engine control device 100 and the combustion gas mixture to the injection device 50. Supply can be started and stopped.

  In the present invention, the pressure control system is set to adjust the gas pressure according to the engine load ML of the gas engine 1 and according to the ignition timing of the cylinder 90 of the gas engine 1. At this time, the ignition timing is after the injection start TE shown in FIG.

  According to one development of the above embodiment, the data bus line 105 of the ignition gas jet control device 40 is connected to the data bus line having the ignition time signal via a data bus connection line 106 (represented by a dotted line in FIG. 1). 104, or the ignition timing signal is supplied in the engine control apparatus 100.

  The ignition time signal can be converted into a specific injection duration or opening time by the ignition gas jet control device 40, and since the ignition time signal is supplied to the data bus line 105, the ignition gas jet control The device 40 is set so as to adjust the injection duration of the injection device 50 according to the ignition timing of the cylinder 90 of the gas engine 1.

  Next, an operation method of the gas engine 1 according to the present invention will be described with reference to a plurality of embodiments shown in FIG.

  The engine control device 100 transmits the current engine load ML of the gas engine 1 to the first pressure control valve 20 as an engine load signal via the data bus line 103.

  The combustion gas mixture from the low-pressure region 71 is compressed in the high-pressure compressor 72 and supplied to the high-pressure reservoir 73, and from there through the first pressure control valve 20, along the supply direction R1 (see arrow R1 in FIG. 1). And supplied to the ignition gas reservoir 30. At this time, the first pressure control valve 20 sets the first gas pressure P1 of the combustion gas mixture based on the engine load signal.

  Further, the engine controller 100 determines the current ignition timing of the cylinder 90 of the gas engine 1 and transmits the ignition timing signal to the second pressure control valve 60 via the data bus line 104. At this time, the second pressure control valve 60 sets the second gas pressure P2 of the combustion gas mixture based on the ignition timing signal.

  That is, the first gas pressure P1 of the combustion gas mixture is corrected to the second gas pressure P2 by the second pressure control valve 60 according to the current ignition timing. At this time, if the reference value given for the second gas pressure P2 by the ignition timing signal is lower than the reference value given for the first gas pressure by the engine load signal, the surplus combustion gas mixture is Since it can be returned to the low pressure region 71 via the gas line 60a along the discharge direction R2 (see arrow R2 in FIG. 1), the inside of the ignition gas reservoir 30 becomes the second gas pressure P2.

  The combustion gas mixture or ignition gas having the second gas pressure P2 in the ignition gas reservoir 30 is supplied to the ignition gas jet control device 40 via the gas line 30b.

  This combustion gas mixture is transmitted from the engine controller 100 to the ignition gas jet controller 40 via the data bus line 105 to cause ignition as described above and thereby cause a power stroke of the piston of the cylinder 90. In accordance with the injected injection signal, the ignition gas jet control device 40 supplies the injection device 50 with the second gas pressure P2 in the form of an ignition gas jet 51 into the precombustion chamber 80 of the cylinder 90 of the gas engine 1. Be injected.

  In summary, in the operation of the gas engine 1, when the engine load ML increases, the reference value for the first gas pressure P1 in the first pressure control valve 20 is changed correspondingly to thereby change the first gas pressure P1. The value is raised and lowered when the engine load ML is lowered. If the current ignition time is temporarily advanced with respect to the preceding ignition time, the reference value for the second gas pressure P2 in the second pressure control valve 20 is changed accordingly, so that the second gas pressure P2 The value is lowered and raised if the current ignition time is temporarily delayed relative to the previous ignition time. That is, the first gas pressure P1 is lowered by a predetermined value according to the ignition timing, and this value may be null.

  According to the above development of the ignition device according to the invention, additionally, the ignition gas jet control device 40 supplies the combustion gas mixture having the second gas pressure P2 to the injection device 50 and thereby its injection duration. It can be controlled according to the current ignition timing.

  In this case, based on the ignition time signal supplied to the ignition gas jet control device 40 via the data bus line 105, the ignition gas jet control device 40 sends the combustion gas mixture having the second gas pressure P2 to the injection device 50. Supply is shortened if the ignition time is temporarily earlier than the previous ignition time, and extended if the ignition time is temporarily delayed relative to the previous ignition time. Is done.

DESCRIPTION OF SYMBOLS 1 Gas engine 10 Ignition apparatus 20 1st pressure control valve 20a Gas line 30 Ignition gas reservoir 30a Gas line 30b Gas line 40 Ignition gas jet control apparatus 40a Gas line 50 Injection apparatus 51 Ignition gas jet 60 2nd pressure control valve 60a Gas line 70 Combustion gas supply device 71 Low pressure region 71a Gas line 72 High pressure compressor 72a Gas line 73 High pressure reservoir 73a Gas line 80 Precombustion chamber 81 Overflow opening 82 Overflow opening 83 Heating device 90 Combustion cylinder 91 Main combustion chamber 100 Engine control device 101 Signal Line 102 Signal line 103 Data bus line 104 Data bus line 105 Data bus line 106 Data bus connection line ML Engine load PV Precombustion chamber pressure R1 Supply direction R2 Discharge direction P1 1st gas pressure P2 2nd gas pressure TE Injection start

Claims (12)

An ignition device (10) for a gas engine (1),
An injection device (50) for injecting an ignition gas jet (51) based on a combustion gas mixture into a precombustion chamber (80) of a cylinder (90) of the gas engine (1);
An ignition gas jet control device (40) for starting and stopping gas supply to the injection device (50); and
A pressure control system for controlling the gas pressure of the combustion gas mixture for the injector (50);
In an ignition device (10) comprising:
The pressure control system adjusts the gas pressure according to the engine load (ML) of the gas engine (1) and according to the ignition timing of the cylinder (90) of the gas engine (1). Ignition device (10), characterized in that it is set.   The pressure control system can adjust the gas pressure according to the engine load (ML) of the gas engine (1), and the ignition timing of the cylinder (90) of the gas engine (1) The ignition device (10) according to claim 1, further comprising: a second control unit capable of adjusting the gas pressure according to the conditions.   An ignition device (10), further comprising an ignition gas reservoir (30), wherein the first controller of the pressure control system includes an inlet for fluidly connecting to a combustion gas mixture high pressure source (73) and the ignition gas reservoir ( 30) having a first pressure control device (20) having an outlet fluidly connected to the pressure control system, and wherein the second control part of the pressure control system is fluidly connected to the ignition gas reservoir (30) The ignition device (10) according to claim 2, characterized in that it has a second pressure control device (60) having an inlet and an outlet for fluid connection to a low pressure source (71) of the combustion gas mixture.   In order for the pressure control system to increase the gas pressure to a given engine load gas pressure (P1) when the engine load (ML) rises, and the ignition time is temporary relative to the previous ignition time. The engine load gas pressure (P1) is set to be lowered to a given ignition point gas pressure (P2) supplied to the injection device (50) when the engine load is early. The ignition device (10) according to any one of claims 1 to 3.   The ignition gas jet control device (40) is set to adjust the injection duration of the injection device (50) according to the ignition timing of the cylinder (90) of the gas engine (1). Ignition device (10) according to any one of the preceding claims, characterized in that it is characterized in that   The ignition gas jet control device (40) is set to shorten the injection duration of the injection device (50) when the ignition time is temporarily advanced from the previous ignition time. Ignition device (10) according to claim 5, characterized by:   A gas engine (1) comprising the ignition device (10) according to any one of claims 1 to 6, wherein the gas engine (1) comprises an engine control device (100), the engine control An apparatus (100) provides an engine load signal representing an engine load (ML) and an ignition timing signal representing a current ignition timing, and the pressure control system is connected to the engine controller (100). Therefore, the gas engine (1) is characterized in that the engine load signal and the ignition timing signal can be supplied to the pressure control system for gas pressure adjustment.   Since the ignition gas jet control device (40) is connected to the engine control device (100), the ignition time signal can be supplied to the ignition gas jet control device (40) to adjust the injection duration time. The gas engine (1) according to claim 7, characterized in that A method for operating a gas engine (1) according to claim 7 or 8, comprising the following steps:
Determining a current engine load (ML) and a current ignition timing of the gas engine (1);
A combustion gas mixture having a first gas pressure (P1) adjusted by the pressure control system in response to the current engine load (ML) is prepared for the injector (50);
The first gas pressure (P1) of the combustion gas mixture is modified to a second gas pressure (P2) by the pressure control system according to a current ignition timing; and
The combustion gas mixture having the second gas pressure (P2) is controlled via the ignition gas jet control device (40) and supplied to the injection device (50), and the second gas pressure (P2). Injecting into the precombustion chamber (80) of the cylinder (90) of the gas engine (1) in the form of an ignition gas jet (51)
A driving method characterized by comprising:   The reference value of the first gas pressure (P1) is increased by the pressure control system when the engine load (ML) increases, is decreased when the engine load (ML) decreases, and The reference value of the second gas pressure (P2) is lowered by the pressure control system when the current ignition time is temporarily advanced with respect to the preceding ignition time, The method according to claim 9, wherein the ignition timing is increased if it is temporarily delayed.   By means of the ignition gas jet control device (40), the supply of the combustion gas mixture having the second gas pressure (P2) to the injection device (50) and thereby the injection duration time of the combustion gas mixture is determined by the current ignition. The method according to claim 10, wherein the method is controlled according to time.   The ignition gas jet control device (40) temporarily supplies the combustion gas mixture having the second gas pressure (P2) to the injection device (50) with respect to the previous ignition time. 12. The method of claim 11, wherein the method is shortened if it is earlier, and extended if the current ignition time is temporarily delayed relative to the preceding ignition time.