Internal-combustion engines – Combustion chamber having multiple spark gaps
Patent
1983-04-06
1984-09-11
Nelli, Raymond A.
Internal-combustion engines
Combustion chamber having multiple spark gaps
123608, 123636, 123637, 123638, F02P 1502, F02M 2506
Patent
active
044703929
ABSTRACT:
A multi-gap spark ignition device to be installed in a spark ignition engine, is disclosed. The device comprises a metallic base member provided with a hole which forms one portion of the combustion chamber of the engine. Within the wall defining the hole, a high voltage electrode, a plurality of intermediate electrodes and an earth electrode are embedded at regular intervals so that each end of the electrodes project into the hole to form a plurality of spark gaps between the adjacent ends of the electrodes. Each of the intermediate electrodes is composed of an electrode member and an insulating member for covering one end of the electrode member, and is closely inserted into a groove formed in one end surface of the base member along the hole thereof at regular intervals. By making the stray electrostatic capacity between the base member and the opposed electrode member of each intermediate electrode larger than the electrostatic capacity between the adjacent electrode members, the required voltage can be maintained small irrespective of the number of the intermediate electrodes.
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"Air Information Circular" vol. V, Feb. 15, 1923, No. 401 by R. Insley-published by Chief of Air Service, Wash. D.C.
Igashira Toshihiko
Kawai Hisasi
Morino Seiji
Nakamura Norihiko
Yoshinaga Toru
Nelli Raymond A.
Nippon Soken Inc.
Toyota Jidosha & Kabushiki Kaisha
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