Toyota Jidosha Kabushiki Kaisha

Yuki Tomitaka

Natsuki Sugiyama

Masao Nakayama

Hideji Naito

Koji Kasahara

Shinya Nishigaya

An electrically heated catalyst device includes a catalyst support supporting a catalyst, a surface electrode disposed on an outer surface of the catalyst support and extending in an axis direction of the catalyst support, a wiring line member including a root section extending in the axis direction of the catalyst support and comb teeth-like wiring lines extending from the root section in a circumferential direction of the catalyst support and fixed to the surface electrode, an outer cylinder covering an outer surface of the catalyst support, and a holding member holding the catalyst support and packed between the catalyst support and the outer cylinder, in which the catalyst support is heated by feeding a current through the surface electrode and the wiring line member. At least a plurality of through-holes or a plurality of protrusions are formed in the root section covered by the holding member.

Electrically heated catalyst device and its manufacturing method

An electrically heated catalyst device includes a catalyst support, a surface electrode disposed on an outer surface of the catalyst support and extending in an axis direction of the catalyst support, a wiring line member including a root section extending in the axis direction of the catalyst support and comb teeth-like wiring lines extending from the root section in a circumference direction of the catalyst support and fixed to the surface electrode, an outer cylinder covering an outer surface of the catalyst support, and a holding member holding the catalyst support and packed between the catalyst support and the outer cylinder, in which the catalyst support is heated by feeding a current through the surface electrode and the wiring line member. A slit extending from an outer edge in the circumferential direction of the catalyst support is formed in the root section of the wiring line member.

Growing community of inventors

Okazaki, Japan

Yuki Tomitaka