Exhaust manifold with catalyst

摘要

The device has manifold tubes (12), each with a catalytic converter section (18) containing converter elements (41). The elements have a cross sectional surface at right angles to the converter axis (33), and this surface is larger than the cross sectional surface of an intake (15) of a manifold tube. The intake defines an intake axis (31), which encloses an angle ( alpha ) of minimum 45 degrees and maximum 135 degrees with the converter axis. The converter elements have a mainly flat exhaust intake surface (51). Each manifold tube has a hollow exhaust distribution chamber (56) next to the surface. The chamber has a cross sectional surface, which is at right angles to the intake axis and decreases linear in a direction away from the intake.