Exhaust gas recirculation valve for an internal combustion engine

摘要

An exhaust gas recirculation valve (10) for an internal combustion engine comprises a valve seat (16) and a closing element (18) associated with the valve seat. A spring means (24) is associated with the closing element so as to bias the closing element on its valve seat. An actuating means (20,30,40) is connected to the closing element for moving the closing element in an opening direction. An override catch means (44) is associated with the actuating means for retaining the closing element in an open park position. The override catch means is activated by the actuating means when the latter moves the closing element from the closed position in the opening direction beyond an override position. The override catch means is deactivated by the actuating means when the latter moves the closing element out of its park position in the opening direction.