EXHAUST GAS RECIRUCLATION DEVICE

摘要

PROBLEM TO BE SOLVED: To improve sealing performance of a sliding part of a housing (a guide bush) and a rod part of a valve more than usual. SOLUTION: This exhaust gas recirculating device 1 is provided with a first baffle 13 being formed in an almost cup shape and constituting a part of a seal means 11 for penetrating the rod part 7a of the valve 7 through the shaft part, a second baffle 14 being sandwiched between this first baffle and the housing 2 and constituting a part of the seal means 11 for penetrating the rod part through the shaft part, a step part 15 formed on an inner wall surface 3A of a supply passage 3 and a sealing chamber 17 adjacently formed to an intake air passage 3. An unillustrated blow-by gas passage is connected to the upstream side of this intake air passage 3.