Secondary air valve for feeding secondary air to an exhaust gas pipe on a motor vehicle's internal combustion engine has an inlet, an outlet and first and second valve heads for opening/closing

摘要

An inlet (12) links to an air pump's front side. An outlet (14) links to an exhaust gas pipe. A first valve opening (FVO) (16) fits between the inlet and the outlet of a secondary air valve. A first valve head (18) opens and closes the FVO. Between the FVO and the outlet there is a second valve opening (SVO) (26) with a second valve head for opening and closing the SVO.