Gas engine with igniter for igniting gaseous fuel air mixture, especially spark-ignition gas engine
A gas engine and air mixture technology, which is applied in the directions of gaseous engine fuel, engine ignition, and incandescent ignition of the engine, can solve the problems of increasing cost, shortening life, shortening maintenance time interval, etc., and achieves the effect of stable operation
Inactive Publication Date: 2009-06-17
MAN B & W DIESEL AS
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This ultimately leads to a shortened service life or shortened maintenance intervals and thus increased costs of the gas engine
Method used
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[0015] figure 1 An extremely simplified schematic diagram of a spark-ignited gas engine is shown, in which an ignition device 2 extends into a combustion chamber of the gas engine, not shown further, to ignite a gaseous fuel-air mixture directly input into the combustion chamber. The ignition device 2 has a high-pressure gas injector 4 and a heating element 5 with a heat shield 6. The distance between the heating element 5 and the high-pressure gas injector 4 is selected such that the gaseous fuel input by the high-pressure gas injector 4 is in the heating element A volume 7 is defined in the area of 5, in which the heating element 5 can actively provide a self-ignition temperature for igniting the highly compressed gaseous fuel during the starting process.
[0016] Ignition is achieved by injecting a small amount of gaseous fuel through the high-pressure gas injector 4 to the vicinity of the hot surface of the heating element 5. This surface of the heating element 5 is active...
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The invention relates to a gas engine with an ignition device for igniting a gaseous fuel-air mixture, especially a spark ignition gas engine. The spark ignition gas engine is used for igniting the gaseous fuel-air mixture, with at least one ignition device for igniting the gaseous fuel-air mixture in a main combustion chamber or pre-combustion chamber. The ignition device comprises a high pressure gas injection and a heating element with thermodynamic screening part (6). The distance from the heating element (5) to the high pressure gas injection (4) is selected, so that gaseous fuel supplied by the high pressure gas injection defines a volume (7) and the heating element (5) actively initiates a self ignition temperature, in the volume, for igniting the gaseous fuel during starting process so that the gaseous fuel serves again as the ignition device of the gas amount that is supplied to a main combustion chamber.
Description
Technical field [0001] The invention relates to a gas engine with an ignition device, in particular a spark ignition gas engine with mixture compression. Background technique [0002] A gaseous fuel-air mixture is burned in a gas engine, wherein the gaseous fuel-air mixture is ignited by means of at least one ignition device of the gas engine. In the gas engine known from the prior art, the ignition device is a spark plug, which either extends into the undivided combustion chamber or into a pre-chamber separate from the main combustion chamber and in the combustion chamber or pre-chamber A mid-point fuel-air mixture. For ignition, high ignition energy and ignition temperature are required, which increase excessively with increasing engine power. DE 102 17 996 A1 discloses a self-igniting mixture compression internal combustion engine in which the ignition of a gaseous fuel-air mixture is achieved by means of an ignition device, wherein the ignition source of the ignition device p...
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IPC IPC(8): F02B19/14F02B9/06F02B43/10F02P19/00
CPCF02B19/1009Y02T10/32Y02T10/125F02B43/02F02M21/0275F02D41/0027F02D19/024F02P19/02F02B19/108Y02T10/12Y02T10/30F02B9/08F02B19/10F02B19/12F02M21/02
Inventor C·沃格尔H·英坎普A·哈南坎普
Owner MAN B & W DIESEL AS