Mitsubishi Electric Corporation

Takuro Zui

Sotsuo Miyoshi

Satoru Hasegawa

Haruo Watanuki

Akihiro Kurihara

A rotation axis Oof a shaftis attached thereto with double-offset in the X and Y directions with respect to a center line Oof a valve seat. A bevel process is implemented on the outer peripheral surface of a valvesuch that the valveand the valve seatis line-sealed, and the sign of the angles of inclination is switched between plus and minus at two places of the outer peripheral surface of the valvedeviated from the center of the axis. Further, a section where the angle of inclination is constant is prepared in each of the sections connecting the two places, while the other sections are smoothly connected to each other.

Exhaust gas recirculation valve

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

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

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Tokyo, Japan

Takuro Zui