Patent ID: 6178744
Filing Date: 2001-01-30
Classification: F01N,Y02A,Y02T

Abstract:
A catalytic converter comprising a casing having an entry end connected to an outlet of an exhaust gas and residues manifold of an engine and housing catalyst means for modifying at least some of said exhaust gases and residues and trap means for retaining at least some of the modified gases and residues, wherein said casing has a central part downstream of said catalyst means and upstream of said trap means housing a heat exchanger adapted to reduce the temperature of said gases and residues upstream of said trap means below a predetermined threshold, wherein said heat exchanger has a cross-section of smaller area than the inside cross-section of said casing so that a passage having a cross-section equal to the difference between said cross-sections of said exchanger and said casing allows direct communication between areas on respective opposite sides of said central area in said casing.