Hydrogen engine
A hydrogen engine includes: a combustion chamber that combusts an air-fuel mixture of air and a hydrogen gas; an injector that directly injects the hydrogen gas into the combustion chamber; an insertion hole which communicates with the combustion chamber and into which the injector is inserted; and a spacer member disposed in a gap between an inner wall of the insertion hole on a side of the combustion chamber and a tip of the injector in an injection direction of the hydrogen gas, the spacer member containing copper as a main component.
1 . A hydrogen engine comprising:
a combustion chamber that combusts an air-fuel mixture of air and a hydrogen gas;
an injector that directly injects the hydrogen gas into the combustion chamber;
an insertion hole which communicates with the combustion chamber and into which the injector is inserted; and
a spacer member disposed in a gap between an inner wall of the insertion hole on a side of the combustion chamber and a tip of the injector in an injection direction of the hydrogen gas, the spacer member containing copper as a main component.
2 . The hydrogen engine according to claim 1 , wherein the spacer member is fixed to the inner wall by adhesion.
3 . The hydrogen engine according to claim 1 , wherein the spacer member has a hole through which the hydrogen gas injected from the injector into the combustion chamber passes.