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US 7,843,117 B2Granted
Plasma-generating plug
AssigneeRENAULT s.a.s.
InventorsXavier Jaffrezic, Andre Agneray
Life of this patent
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Abstract
The invention relates to a plasma-generating spark plug which undergoes excitation in the radio frequency domain. The invention comprises at least one first metallic electrode (12, 14), an insulator (13), one of which is equipped with a housing (130) in which the other element (13, 14) is mounted with a gap (15, 16) therebetween. The surface of the insulator (13) opposite the first electrode (12, 14) is metalized.
Claims5
A plasma-generating spark plug which undergoes excitation in a radiofrequency domain, comprising:
- a first metal electrode;
- a second electrode which surrounds the first metal electrode;
- and
- an insulator located between the first metal electrode and the second electrode, and all of the surface of the insulator which faces the first metal electrode is metallized.
1 more element
Dependencies are inferred from the claim text.