An ignition unit (100) produces an ignition in a combustion chamber of a combustion engine in the following manner. The ignition unit comprises a radiofrequency resonator (117, 118) that radiates a plasma-creating radiofrequency field into the combustion c...

The present invention provides a plasma generating device that improves plasma generating efficiency for the power used and can further accommodate changes in plasma generating state because of changes in conditions of surroundings and the like. The presen...

The present invention aims at providing an antenna structure that is not susceptible to erosion and degradation caused by high frequency wave emission and is capable of efficiently emitting high frequency wave energy in accordance with a flowing flame, and...

To simplify a configuration of a plasma generation device that generates plasma by means of an electromagnetic wave using thermal electrons as a trigger. The plasma generation device 30 includes: a thermal electron emission member 14 that emits thermal ele...

An internal combustion engine has an internal combustion engine body formed with a combustion chamber and an ignition device that ignites an air-fuel mixture in the combustion chamber. Repetitive combustion cycles, including ignition of the air-fuel mixtur...

An internal combustion engine includes an internal combustion engine body formed with a combustion chamber, and an ignition device to ignite an air-fuel mixture in the combustion chamber. Repetitive combustion cycles, including the ignition of the air-fuel...

The present invention aims at effectively emitting an electromagnetic wave to a combustion chamber from an emission antenna in an internal combustion engine that promotes combustion of an air fuel mixture utilizing the electromagnetic wave. The present inv...

To make it easy to adjust a location of an emission antenna in a plasma generation device that generates plasma by a discharge and enlarges the plasma by an electromagnetic wave. A plasma generation device 30 includes an electromagnetic wave generation dev...

An ignition device for a combustion engine air/fuel mixture comprises a coaxial waveguide (5) to which high-frequency energy can be coupled with an end in the cylinder combustion space producing high voltage and a microwave plasma. The ignition pencil end ...

The spark plug has two plasma generation electrodes (103, 106), and a series resonator with resonance frequency greater than 1 mega hertz. The resonator includes a capacitor (111) with two terminals, and an inductive winding (112) connected in series. The ...