Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Sony Corporation

Haruo Watanuki

Sotsuo Miyoshi

Satoru Hasegawa

Takuro Zui

Taketoshi Takemura

Yuya Nishimori

Tomohiro Okumura

Makoto Sakuwa

Naosuke Nojima

An attaching system of an exhaust gas recirculation valve includes: an attachment unitto be communicated with an exhaust gas circulation passage of an internal combustion engine; and an exhaust gas recirculation valvethat is fitted to the attachment unit and that has an exhaust gas passage to be communicated with the exhaust gas circulation passage, wherein the exhaust gas recirculation valve has a water-cooled passageto be communicated with a water-cooled passagefor cooling the exhaust gas passage provided with the attachment unit, when fitted to the attachment unit.

Drop-in type of exhaust gas recirculation valve, and system for attaching same

An EGR valve device includes a housing having an exhaust gas passage formed inside, a support shaft slidably supported within the housing through a bearing, a valve disposed on the support shaft to open and close the exhaust gas passage, an urging member for urging the support shaft in a direction to close the valve, a valve seat, insert-cast integral with the housing, for closing the exhaust gas passage by abutting against the valve, and an actuator for driving the support shaft in a direction to open the valve, wherein a plurality of recesses or projections are provided axisymmetrically or uniformly in the peripheral portion of the valve seat to be insert-cast.

EGR valve device

In an EGR valve provided in an exhaust gas recirculation passage for recirculating the exhaust gas of an engine, a filteris provided on the side of an exhaust gas passageof a bearingsupporting a valve rod, while a diameter-reduced sectionis provided in an area on the valve rodin proximity to the filter

Exhaust gas recirculation valve

An exhaust gas recirculation valve is fabricated by fitting a valve headand a coverenclosing a valve rodinto a supporting sectionprovided at the tip of the valve rod, and caulking the supporting sectionto secure the valve rodand the coverto the supporting section

A valve shaftand a drive shaftof an EGR valveare butted to each other; protrusions, andformed on the inner sides of cotter membersof a cotterare engaged with groovesrespectively formed on the outer peripheral surfaces of the ends of the shafts; the urging force of a springfor exerting an urging force in the closing direction of valve diskson the cotteris applied to the cotterthrough a spring holderto press the protrusions, andto the grooves

Exhaust gas recirculation valve and method of producing exhaust gas recirculation valve

An inner surface of an exhaust gas passageof an EGR valveis coated with Teflon coatingand a surface of a valve rodis coated with a filmof chromium plating.

An EGR valve device includes a valve housing having one or more exhaust-gas inlet ports and two or more exhaust-gas outlet ports, and forming an exhaust-gas passage communicated with these exhaust-gas inlet ports and exhaust-gas outlet ports; two valve-sheets disposed on the inner peripheral face of the valve housing; a valve shaft assembled into the valve housing; and two valves secured on the valve shaft, and simultaneously abutting on the respective valve-sheets when the valve shaft moved in one direction. It is arranged that the valve housing is formed of material having an axial thermal expansion coefficient larger than that of the valve shaft, and that the distance between the two valve-sheets is set so as to equal with that between the valves at the normal temperature.

A color selecting electrode for use in a cathode-ray tube is provided which includes a frame having a pair of opposed first supports and a pair of opposed second supports extending in a direction such as to cross the pair of first supports, and grid elements disposed on the pair of first supports at a fixed pitch and stretchedly bridging the pair of first supports, wherein the pair of second supports and the grid elements are, respectively, made of materials selected such that an average thermal expansion coefficient of the pair of second supports over a temperature range from 0.degree. C. to 470.degree. C. is equal to or lower than 85% of that of the grid elements over the same temperature range.

Growing community of inventors

Tokyo, Japan

Haruo Watanuki