Patent ID: 7918217
Filing Date: 2011-04-05
Classification: F02D,F02M,F16K

Abstract:
1. Exhaust gas check valve for an exhaust gas return line leading from an exhaust gas side to a fresh air side of an internal combustion reciprocating piston engine, said exhaust gas check valve comprising a movable valve element made of flat material, which is held by a plurality of return springs, and a valve seat with an exhaust gas through-opening which defines a valve axis of the check valve and is at least almost closable by the valve element in a closed position of the valve element, said valve element being movable in the direction of the valve axis away from the valve seat against the action of the return springs by a flow of exhaust gas flowing against the exhaust gas through-opening in the direction towards the valve element, and said return springs being arranged in spaced relation to one another at the circumference of the valve element, said check valve comprising on the side of the valve element that faces away from the valve seat at least one stop element which delimits the stroke of the valve element up to an open position of the valve element and is held by at least one spring element for movement in the direction of the valve axis.