The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2013
Filed:
Mar. 24, 2010
Applicants:
Maxime Makarov, Viroflay, FR;
Frederic Auzas, Paris, FR;
Inventors:
Maxime Makarov, Viroflay, FR;
Frederic Auzas, Paris, FR;
Assignee:
Renault S.A.S., Boulogne Billancourt, FR;
Primary Examiner:
Int. Cl.
CPC ...
F02P 3/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of igniting a mixture of oxidant and fuel in a combustion chamber of a combustion engine using a spark plug arranged so that it protrudes into the combustion chamber of the engine. The method includes powering the spark plug using a first alternating electrical signal of a frequency higher than 1 MHz, and second powering the spark plug using a second alternating electrical signal of a frequency higher than 1 MHz, the second power taking place after the first powering following a time delay.