Patent ID: 6823854
Filing Date: 2004-11-30
Classification: F02B,F02M,Y02T

Abstract:
A device for preventing an internal combustion engine exhaust gas recirculation valve from sticking after the engine is switched off, comprising:an exhaust gas recirculation line branching off from an exhaust line and leading into a fresh gas line, the recirculation line being used for recirculating exhaust gas and having a valve with an actuator driven closing element such that when the engine is not in operation the closing element is in an idle position, the closing element being activated by the actuator via a gear mechanism such that a rotational movement of the actuator is converted into a linear movement of the closing element by means of the gear mechanism, and wherein the gear mechanism has a first movement range and a second movement range, the first movement range being limited by an opening and a closing position of the closing element, and the second movement range being limited by the closing and idle position of the closing element.