| 摘要 |
The invention concerns an ignition device for internal combustion engine, containing: a main chamber ( 1 ) designed for including a main combustible mixture, and fitted with a compression system of said mixture, an igniter ( 11 ) containing a precombustion chamber ( 2 ) designed for receiving reactants and an ignition system ( 13,14 ) of the reactants contained in the precombustion chamber, said precombustion chamber ( 2 ) being defined by a precombustion chamber body ( 12 ) having a head ( 12 a) including at least one passageway ( 15 ), said head ( 12 a) of the precombustion chamber body separating the precombustion chamber ( 2 ) from the main chamber ( 1 ) and communicating the precombustion chamber ( 2 ) and the main chamber ( 1 ) by dint of the passageway(s) ( 15 ), characterised in that said precombustion chamber body ( 12 ) is made of a material having a thermal conductivity at 20 ° C. of at least 10 W/K/m.
|
