Honda Giken Kogyo Kabushiki Kaisha

Honda Motor Co., Ltd.

Ngk Spark Plug Company, Limited

Mitsuo Kusa

Masaki Ueno

Koichi Shimamura

Koji Kano

Hajime Yamada

Shigeru Kodaira

Noriyoshi Tsutsui

Tetsuya Nakayasu

Kenjiro Saito

Toshihiko Suda

Hisaharu Nishio

Hiroshi Kato

Katsuhisa Yabuta

Takeshi Shimura

Kazuo Taguchi

Tomoyuki Tagami

Keiichi Noda

Takashi Udono

Takahito Sekita

Kensuke Suzuki

Akihiro Nakamaru

An evaporated fuel controlling apparatus for an all terrain vehicle can avoid the influence of disturbance and can be disposed efficiently. The evaporated fuel controlling apparatus includes a canister adapted to absorb evaporated fuel generated from a fuel tank, a purge path adapted to connect the canister and an intake system of an engine to each other, and a purge controlling section adapted to control a flow rate of the evaporated fuel to be supplied from the canister to the intake system of the engine through the purge path. At least the canister from among the canister, purge path and purge controlling section is mounted on a vehicle body front frame FrF which supports a steering mechanism.

Evaporated fuel controlling apparatus for all terrain vehicle

The intake and exhaust control systems are operable in varying modes, according to the engine speed, by a single actuator. The intake control system includes an intake valve that allows a variable amount of air into an air cleaner depending on vehicle speed. The exhaust control system includes an exhaust control valve, and a primary and a secondary exhaust purifying system located downstream of the exhaust control valve. The flow into the exhaust purifying systems may also be controlled according to engine speed.

Intake and exhaust control systems for engine

A gas sensor includes an outer cylinder a metallic shell and a sensor element The metallic shell is disposed inside the outer cylinder The sensor element is disposed in a through-hole formed in the metallic shell and is adapted to detect a component of a gas to be measured. A sealing material layer is mainly made of glass and is disposed between the inner surface of the metallic shell and the outer surface of the sensor element A cushion layer formed of a porous inorganic substance is disposed in contact with the end of the sealing material layer on the front-end side with respect to the axial direction of the sensor element A cushion layer formed of talc glass is disposed in contact with the end of the sealing material layer on the rear-end side with respect to the axial direction of the sensor element A gas sensor according to the present invention is especially adapted for use in a motorcycle and includes a sensor element having lower susceptibility to mechanical shock or thermal stress induced by different rates of contraction between a sealing material layer and an adjacent component element as well as excellent durability.

Gas sensor with multiple mechanical and thermal shock cushion layers

An apparatus for controlling operation of a heater has an internal resistance detector for detecting an internal resistance value of an oxygen sensor, and a control unit for estimating a surface temperature of the oxygen sensor based on the internal resistance value detected by the internal resistance detector, then estimating a temperature of the exhaust pipe based on the estimated surface temperature of the oxygen sensor and controlling the operation of the heater, which is combined with the oxygen sensor in a single unit, when the estimated temperature of the exhaust pipe has reached a predetermined temperature.

Apparatus for controlling a timing of turning on electricity to a heater

A detecting element is configured such that a second electrode is disposed on one side of a plate-like first electrode with a first solid electrolyte layer positioned therebetween and a third electrode is disposed on the other side of the first electrode with a second solid electrolyte layer positioned therebetween, thereby detecting migration of oxygen ions between the first electrode and the second electrode and migration of oxygen ions between the first electrode and the third electrode. Since the second electrode is disposed on one side of the plate-like first electrode with the first solid electrolyte layer positioned therebetween and the third electrode is disposed on the other side of the first electrode with the second solid electrolyte layer positioned therebetween, both planes of the detecting element functions as detecting planes and, to thus extend the directivity of detection in two directions. Since either the second electrode or the third electrode faces to the flow of exhaust gas, the inventive oxygen sensor can be brought in contact with exhaust gas earlier than a prior art oxygen sensor does. Accordingly, the response time of the inventive oxygen sensor becomes shorter than that of the prior art oxygen sensor.

Oxygen sensor

An exhaust gas purifying device includes a cylindrical carrier carrying a catalyst, the carrier having a number of holes in the cylindrical wall thereof, an exhaust pipe into which the cylindrical carrier is inserted, an elastic member set radially compressed between a part of the outer cylindrical surface of at least one end portion of the carrier and a recess formed in the inner cylindrical surface of the exhaust pipe which is confronted with the part of the outer cylindrical surface, pressing pieces protruded from the outer cylindrical surface of the carrier so as to engage with the inner end face of the elastic member as viewed in the direction of axis thereof, the pressing pieces cooperating with the end of the recess to compress the elastic member axially, and a valve chamber formed in the exhaust pipe, the valve chamber having a valve body which includes a valve shaft penetrating the valve chamber in a direction of diameter, and a valve body fixedly mounted on the valve shaft.

Exhaust device

Growing community of inventors

Saitama, Japan

Mitsuo Kusa