Denso Corporation

Naruhiko Inayosi

Hiroyuki Wakabayashi

Kazutoyo Oosuka

Keisuke Kawano

Tomonari Chiba

Katsuhisa Kato

Akimitsu Sugiura

Kazuhide Kawai

Yoshimi Nakase

Norihiro Adachi

Yoshitaka Sato

Masahiko Aoyama

Tomonori Ishikawa

Akimitsu Suguira

A stick-type ignition coil have a central core, a cylindrical member, primary spool, primary coil, secondary spool, secondary coil, outer core and a resin insulator. The two longitudinal end corners and faces of the core are covered by respective buffer members. The inner circumferential corners of the outer core is supported by ring members. Some of the members disposed radially inside and other members disposed radially outside of the inside members are held slidably to each other in the ignition coil. The spools are made of resin containing a rubber in excess of 5 weight percent and reinforcing materials. The resin insulator contains a flexible material.

Stick-type ignition coil having improved structure against crack or dielectric discharge

Growing community of inventors

Kuwana, Japan

Naruhiko Inayosi