Toyota Jidosha Kabushiki Kaisha

Tyco Electronics Japan G.k.

Katsuhiko Wakabayashi

Tetsuya Yamashita

Toshiaki Tanaka

Shinichi Takeshima

Shinya Hirota

Hiroshi Ito

Kotaro Hayashi

Hiroki Kondo

Takamitsu Asanuma

Kazuhiro Itoh

Satoshi Iguchi

Kouji Yoshizaki

Nobumoto Ohashi

Takanori Ueda

Tomokazu Yamane

Eiji Iwasaki

Yasuaki Nakano

Masahiro Kishida

Noritaka Ikejiri

Shinicihi Takeshima

Satomi Itakura

Shingo Yamada

A connector assembly is disclosed including a first connector and a second connector matable with the first connector. The first connector has a first housing, a first power terminal attached, and a first signal terminal. The second connector has a lever attached to a moving housing, the lever moving the moving housing between a mating released position, an intermediate position, and a mating completed position, a second housing movably disposed within the moving housing, a second power terminal disposed in the second housing and contacting the first power terminal in the intermediate position, a second signal terminal attached to the moving housing and contacting the first signal terminal at a position between the intermediate position and the mating completed position, and a separating protrusion disposed on the moving housing preventing the second power terminal from contacting the first power terminal in the mating released position.

Lever-type connector assembly

Particles smaller than 50 nanometers emitted from an internal combustion engine, and serving as nuclei for forming PM (particulate matter), are removed to decrease the number of PM particles that are emitted to atmosphere. High efficiency filters are provided in passages that feed fluids into the combustion chamber, e.g., intake air, fuel and engine oil, in order to remove particles smaller than 50 nanometers serving as nuclei for forming PM.

Exhaust purification device of internal combustion engine

It is suppressed that nanoparticles generated in an internal combustion engine are discharged into the atmosphere. In a cylinder or an exhaust system of the internal combustion engine, microparticles having a particle diameter larger than that of the nanoparticles are generated, and the nanoparticles generated in the internal combustion engine are adsorbed by the microparticles, thereby increasing the diameter of the nanoparticles. The microparticles can be generated in the cylinder as the soot, for example. Additionally, by providing a carbon microparticle generation device in the exhaust system, the microparticles can be generated, too. By making the nanoparticles adsorbed by the microparticles and increasing the diameter of the nanoparticles, discharging of the nanoparticles can be suppressed.

Control device and exhaust purification method of internal combustion engine

In an internal combustion engine, an exhaust passage is provided with a NOstoring and decomposing catalyst (). When burning fuel under a lean air-fuel ratio, the nitrogen monoxide is adsorbed by the NOstoring and decomposing catalyst () and disassociated. At this time, the disassociated oxygen is held in the form of oxygen ions Oon the NOstoring and decomposing catalyst (). By making the air-fuel ratio rich and purging part of these oxygen ions O, the remaining oxygen ions Oare also purged. Due to this, the NOpurification performance of the NOstoring and decomposing catalyst () is restored.

Exhaust purification method and exhaust purification apparatus of internal combustion engine

There is provided a particulate matter combustion catalyst which allows easy combustion of particulate matter collected on the particulate matter filter of a diesel vehicle, at a much lower temperature than by the prior art. The particulate matter combustion catalyst has a construction characterized by an NO oxidation catalyst wherein the catalyst component is carried on an acidic first carrier, and an NOdecomposition catalyst wherein the catalyst component is carried on a second carrier. Preferably, the NO oxidation catalyst has a precious metal such as platinum carried on an acidic first carrier such as tungstic acid/zirconia, and the NOdecomposition catalyst has a catalyst component selected from the transition metals carried on a second carrier such as titania, or alternatively, the NOdecomposition catalyst has at least one metal selected from among alkali metals and alkaline earth metals and a precious metal such as platinum carried on a second carrier such as titania.

Particulate burning catalyst

An exhaust gas purifying catalyst capable of exerting excellent NOpurifying capability even at high exhaust gas temperatures, exceeding 500&#xb0; C., is provided. The catalyst is an absorption reduction-type NOpurifying catalyst comprising an NOabsorbent obtained by loading at least one alkali metal or alkaline earth metal on a crystalline ZrOcomposite oxide having added thereto at least one trivalent rare earth metal or divalent alkaline earth metal. Preferably, aluminum is further supported on the ZrOcomposite oxide. The NOabsorbent is considered to have an NOabsorption mechanism that an electron released from the alkali metal or the like enters into an oxygen vacancy part of the crystalline ZrOand this oxygen vacancy part functions as a strong base site for donating an electron to an electrophilic component such as NO.

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A catalyst able to overcome defects of an absorption reduction-type NOpurifying catalyst, such as poor NOpurifying capability at low temperatures and low SOdesorbing property, is provided. The catalyst is an absorption reduction-type NOpurifying catalyst where NOabsorbent particles and support particles having supported thereon a catalyst component are mixed. Preferably, acidic support particles are added to the support particle, the NOabsorbent particles are a metal oxide having a base point, and the metal oxide is rare earth-added zirconia. In conventional catalysts, the NOabsorbent such as alkali metal having strong basicity exposes the catalyst component present together on the same support to the basic condition to decrease the catalytic performance. However, in the present invention, the NOabsorbent and the support are separate particles, whereby the catalyst component can exert its original catalytic performance and, as a result, the NOpurifying capability at low temperatures and the SOdesorbing property are improved.

Absorption reduction-type NOx purifying catalyst

An exhaust gas collecting apparatus, of an internal combustion engine including a collection vessel that can hold exhaust gas, an exhaust gas taking-out passage through which exhaust gas is introduced from an exhaust passage to the collection vessel, an exhaust gas introduction passage through which the exhaust gas is introduced from the collection vessel to the exhaust passage at a position upstream from the catalytic converter, a first valve that is switchable between a position where the introduction of the exhaust gas from the exhaust passage to the exhaust gas taking-out passage is permitted and a position where the introduction of the exhaust gas is prevented, and a second valve that is switchable between a position where the introduction of the exhaust gas through the exhaust gas introduction passage is permitted and a position where the introduction of the exhaust gas is prevented.

Exhaust gas purifying method, exhaust gas purifying apparatus, and exhaust gas collecting apparatus of internal combustion engine

An exhaust gas purifying catalyst in which catalytic activation particles 3 composed of a catalytic element or its compound are carried on a carrier 1. The catalytic activation particles 3, as carried on the carrier 1 and exposed to the outside of the carrier 1, are coated with the carrier 1 by 20 to 90% of their whole surface area. Also disclosed is a process for producing the exhaust gas purifying catalyst.

Exhaust gas purifying catalyst and process for producing the same

A device for purifying the exhaust gas of an engine comprises a NO.sub.X absorbent arranged in the exhaust passage. The NO.sub.X absorbent absorbs NO.sub.X therein when the air-fuel ratio of the inflowing exhaust gas is lean, and releases the absorbed NO.sub.X therefrom when the oxygen concentration in the inflowing exhaust gas becomes lower. The NO.sub.X absorbent also absorbs SO.sub.X therein when the air-fuel ratio of the inflowing exhaust gas is lean, and releases the absorbed SO.sub.X therefrom when the oxygen concentration in the inflowing exhaust gas becomes lower, with the temperature of the NO.sub.X absorbent being higher than a SO.sub.X releasing temperature. The air-fuel ratio of the exhaust gas flowing to the NO.sub.X absorbent is made rich temporarily when the temperature of the NO.sub.X absorbent is higher than SO.sub.X releasing temperature and when the flow rate of the exhaust gas flowing through the NO.sub.X absorbent is lower than a predetermined flow rate, to release the absorbed SO.sub.X from the NO.sub.X absorbent.

Device for purifying exhaust gas of engine

An automotive exhaust catalyst includes an alumina support having pores, an NO.sub.x, storage member loaded in the pores having a pore diameter of from 10 to 30.ANG. at least, and a noble metal element loaded on the alumina support. The automotive exhaust catalyst can store NO.sub.x, in a large amount in fuel-lean or oxygen-rich atmosphere, and inhibit the alumina support from sintering, because the NO.sub.x storage member is loaded in a highly dispersed manner.

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Gotenba, Japan

Tetsuya Yamashita