Patent ID: 11913411
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 4:
5. An internal combustion engine, comprising:
a cylinder;
an intake port coupled to the cylinder;
one or more intake valves configured to selectively allow and block connection of the intake port to the cylinder;
an asynchronous injection valve configured to inject water into the intake port when the one or more intake valves are closed; and
a synchronous injection valve configured to inject water into the intake port when the one or more intake valves are open, wherein
the asynchronous injection valve and the synchronous injection valve are configured to have injection characteristics that are different between the asynchronous injection valve and the synchronous injection valve,
the asynchronous injection valve includes a nozzle hole,
the synchronous injection valve includes a nozzle hole, and
the nozzle hole of the asynchronous injection valve is smaller than the nozzle hole of the synchronous injection valve.