This invention provides a recirculating valve for exhaust gas, comprising a Teflon coating (31) provided on the inner surface of an exhaust gas passage (22) in an EGR valve (11), and a chromium plating (32) provided on the surface of a valve rod (25).
申请公布号
WO2008081622(A1)
申请公布日期
2008.07.10
申请号
WO2007JP67962
申请日期
2007.09.14
申请人
MITSUBISHI ELECTRIC CORPORATION;WATANUKI, HARUO;HASEGAWA, SATORU;NOJIMA, NAOSUKE;MIYOSHI, SOTSUO
