Patent ID: 7926471
Filing Date: 2011-04-19
Classification: F02M,F28D,F28F

Abstract:
1. An exhaust gas recirculation cooler comprising: a housing including an exhaust gas region, a coolant region, an exhaust gas inlet that provides communication between an exhaust gas from an engine and the exhaust gas region, and an exhaust gas outlet that provides communication between the exhaust gas region and an engine intake air supply; and a first wall fixed within the housing and separating the exhaust gas region from the coolant region, the first wall including a first region facing the exhaust gas region and a first tab having a fixed end coupled to the first region and a free end generally opposite the fixed end, the free end being displaceable between first and second positions based on an operating temperature of the exhaust gas, the free end being displaced in a direction generally perpendicular to the first region when in the second position.