Layout structure of catalytic converters

Details Layout structure of catalytic converters Layout structure of catalytic converters

1993-01-29

1995-03-21

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60298, 60323, F01N 328

Patent

active

053985044

ABSTRACT:
A layout structure of catalytic converters, used for an engine transversely arranged in an engine room formed in a front portion of a vehicle, includes a front catalytic converter connected to an exhaust manifold arranged in a forward direction of the vehicle with respect to the engine, and a rear catalytic converter connected to an exhaust manifold arranged in a backward direction of said vehicle, wherein the rear catalytic converter is arranged to be offset from a central position of the engine arranged along a widthwise direction of the vehicle by a predetermined distance. With this structure, the rear catalytic converter can be cooled in the same manner as the front catalytic converter. In addition, the rear catalytic converter is formed into a cylindrical member having an elliptic/oval cross-sectional shape with a major axis coinciding with a longitudinal direction of the vehicle, thus increasing the area of a heat-dissipating surface of the rear catalytic converter. With this structure, heat dissipation can be promoted, and cooling air can be quickly exhausted through a tunnel portion continuous with the engine room after a cooling operation.

REFERENCES:
patent: 4653270 (1987-03-01), Takii
patent: 5144800 (1992-09-01), Shioya
patent: 5195607 (1993-03-01), Shimada

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