Toyota Jidosha Kabushiki Kaisha

Other

Kabushiki Kaisha Toyota Chuo Kenkyusho

Kazuaki Sobue

Toshio Tanahashi

Naoki Takahashi

Hiromasa Suzuki

Hideo Sobukawa

Mareo Kimura

Koji Yokota

Tadashi Suzuki

Masakatsu Sanada

Hiroshi Hirayama

Shinichi Matsunaga

Yoriko Hasegawa

Riemi Tanizawa

Tsuneo Higashi

Hiroyuki Domyo

An electrically heated catalytic device includes an electrically heated catalyst accommodated in an outer casing provided on an exhaust pipe. A heater ring made of an insulating material is provided adjacent to an outer peripheral edge portion of an upstream end face of the electrically heated catalyst. The heat of the electrically heated catalyst is transferred to the heater ring by generating resistive heat in the electrically heated catalyst. When the soot in exhaust gas accumulates on the surface of the heater ring, the deposits of soot is removed through combustion by the heat from the surface of the heater ring.

Electrically heated catalytic device and vehicle equipped with electrically heated catalytic device

A catalyst for purifying an exhaust gas includes a support including rutile titania, an NO storage material including at least on element selected from alkali metals, alkaline-earth metals and rare-earth elements and loaded on the support, and a noble metal loaded on the support. Since the rutile TiO and the NO storage material form a fine composite oxide, the NO storage material is likely to decompose even when it is subject to the sulfur poisoning, and the NO storage material easily recovers the NO storage ability. Therefore, the NO storage material can be inhibited from the sulfur poisoning, and a high NO conversion ratio can be maintained even after the service at an elevated temperature.

Catalyst for purifying exhaust gas, process for producing the same, and method for purifying exhaust gas

Method of testing durability of exhaust gas purification device

Growing community of inventors

Toyota, Japan

Kazuaki Sobue