Patent ID: 9534568
Date: 2017-01-03
CPC Classifications: C23C,F02M,Y02T

Claim:
1. An exhaust gas recirculation valve for a vehicle, comprising: a housing having a flow path through which an exhaust gas flows; a shaft installed in the housing to be rotatable; a flap valve provided to be rotatable about the shaft and configured to open and close the flow path; a bushing provided on the shaft; an anti-wear washer installed on the shaft between the flap valve and the bushing wherein the anti-wear washer is fixed to the flap valve and rotates with the flap valve when the flap valve rotates; and a spring means installed on the shaft and configured to elastically support the bushing, wherein a material comprising TACSiCoN (TiAlCrSiCN) is coated on a portion where the anti-wear washer and the bushing come into contact with each other.