| 摘要 |
A plasma device (30) which ignites an air-fuel mixture by radiating the combustion chamber (10) of an engine (20) with electromagnetic waves, thereby generating electromagnetic plasma, wherein the fuel efficiency of the engine (20) is improved if the air-fuel mixture is subjected to lean-burn. During the flame propagation after the air-fuel mixture has been ignited in the combustion chamber (10), the combustion chamber (10) is irradiated with electromagnetic waves, and the electromagnetic waves are made to resonate with the electrons in the propagating flames. By having these electromagnetic waves resonate with the electrons in the propagating flames, the flame propagation rate is increased. |
