Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Toyota Boshoku Kabushiki Kaisha

Denso Corporation

Masahiro Mochizuki

Takaaki Itou

Koichi Hoshi

Hideki Suzuki

Kouichi Oda

Toshiki Annoura

Minoru Honda

Futaba Kanehira

Kazuo Miyazato

Yasushi Miura

Kongoh Aoki

Junichi Kano

Tadayoshi Sato

Hiroyuki Nakadozono

Yuushi Matsushita

Shinichi Nakayama

A fuel vapor adsorbing device () for adsorbing residual fuel vapors that remain in an intake conduit () of an induction system of an internal combustion engine when the internal combustion engine is stopped may include an adsorbing member (') that is constructed to adsorb the residual fuel vapors and is disposed along an inner wall surface of the intake conduit. The adsorbing member is arranged and constructed to form a supplemental intake path (T, T&#x2032;, T&#x2032;&#x2033;) between the adsorbing member and the inner wall surface of the intake conduit, so that intake air of the engine can flow through the supplemental intake path.

Fuel vapor adsorbing devices

An evaporative fuel adsorbent, which adsorbs evaporative fuel, is positioned substantially parallel to a sidewall surfaceof a surge tank. A retention memberis positioned between the sidewall surfaceand evaporative fuel adsorbentto prevent oil, which runs down on the sidewall surface, from adhering to the evaporative fuel adsorbent. The evaporative fuel adsorbentis mounted on the sidewall surfaceof the surge tankvia the retention member

Evaporative fuel adsorption device

A fuel-effusion prevention valve includes a first housing member having an evaporation passage, a first engaging portion and a first cylindrical portion, and a second housing member having a partition portion, a communicating passage, a second engaging portion and a second cylindrical portion. The first cylindrical portion is formed so as to extend axially from the first engaging portion, and its diameter is smaller than that of the second engaging portion. The second cylindrical portion is formed so as to extend axially from the second engaging portion. A floating valve is disposed in a chamber so as to be able to open and close the valve hole in response to its buoyancy due to fuel flowing into the second chamber through the communicating passage. The first cylindrical portion is fused with the second cylindrical portion. A circular seal member is fitted into an installation hole formed on the fuel tank and its inner hole is fitted onto the outer circumferential surface of the first cylindrical portion.

Fuel-effusion prevention valve

A two-port electromagnetic valve is disclosed. The electromagnetic valve incorporates a first port, a second port and a passage for communicating the first and second ports and a cylindrical bobbin having an electrical coil. A fixed core is arranged inside the cylindrical bobbin and has an inner space defined therein. A movable core is arranged near the fixed core. A valve is connected with the movable core for opening and closing the passage between both the ports. An insert member is arranged into the inner space of the fixed core.

Electromagnetic valve

A variable valve timing system in an engine having a rotating cam-shaft includes a timing pulley driven by the engine and a damper case rotatably fixed to the crank-shaft. A piston is movable in a space defined by the timing pulley and the damper case and has helical gears engaging helical gears of the timing pulley and damper case such that the angular position between the timing pulley and the damper case varies as the piston is moved. Movement of the piston is induced by hydraulic pressure in a pressure chamber selectively connected to hydraulic pressure by an electronically controlled solenoid valve. Engaging labyrinth grooves on the timing pulley and damper case damp rotational vibrations which would otherwise be induced by variations in the torque applied to the damper case, and so prevent undesirable movement of the piston.

Variable valve timing system having rotational vibration damping

A supercharging pressure control device for an internal combustion engine provided with a supercharger includes a first intake passage interposed between the engine and the supercharger, a second intake passage interposed between a throttle valve and the supercharger, a by-pass passage interposed between first and second passages for by-passing the supercharger, a supercharging pressure control valve interposed between first and second passage for controlling the opening and closing of the by-pass passage and a control valve interposed between the first intake passage and the supercharging pressure control valve for increasing the value of the positive pressure in accordance with the increase of the RPM of the engine and the opening degree of the throttle valve. A three-way electromagnetic valve is interposed between the second intake passage and the control valve for communicating the negative pressure generated in the second intake passage or the atmosphere with the control valve in accordance with the RPM of the opening degree of the throttle valve.

Supercharging pressure control device

A pressure regulator for regulating a pressure differential between a fuel pressure and an intake manifold vacuum, which includes a casing member, a diaphragm dividing the casing member into a vacuum chamber and a fuel pressure chamber, a valve member associated with the diaphragm, and a spring biasing the diaphragm and constructed of a material having a temperature-actuated shape memory alloy.

Growing community of inventors

Okazaki, Japan

Masahiro Mochizuki