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.

Date of Patent:
Apr. 21, 1987

Filed:

Oct. 30, 1985
Applicant:
Inventors:

Osamu Kashima, Kariya, JP;

Masamichi Shibata, Anjo, JP;

Assignee:

Nippondenso Co., Ltd., Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ;
Abstract

An improved ignition apparatus for an internal combustion engine includes at least an ignition coil and a first electrode assembly and a second electrode assembly, each thereof including an electrode, and each of the electrodes of the first and second electrode assemblies is electrically connected to one end of a secondary winding of an ignition coil. The electrodes are supported on a cylinder head of the engine being electrically insulated therefrom and they form a spark gap for producing spark discharge therebetween, and a high tension circuit connecting the electrodes to the secondary winding of the ignition coil is electrically insulated from the body of the engine. The ignition apparatus having the above-described construction has the functional effects of improving the ignition performance, simplifying the withstant voltage design of constituent components, improving the antifouling performance at a spark gap portion and increasing the radio frequency interference suppression performance.


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