Exhaust system for a V-type engine

Details Exhaust system for a V-type engine Exhaust system for a V-type engine

2005-06-21

2005-06-21

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Common receiver having inlets from plural cylinder

C060S313000

Reexamination Certificate

active

06907726

ABSTRACT:
An exhaust system for a V-type engine according to the embodiment of the present invention includes first and second front exhaust pipes that are respectively connected to first and second exhaust manifolds upstream thereof through first and second front catalytic converters. The first and second front exhaust pipes are joined together at end portions thereof to form a coupling portion. The center exhaust pipe is connected downstream of the coupling portion, and a main catalytic converter is disposed in the center exhaust pipe. The rear exhaust pipe is connected downstream of the center exhaust pipe. The coupling portion is formed such that an angle between a center line of an end portion of the first front exhaust pipe and a center line of an end portion of the second front exhaust pipe is less than 20 degrees.

REFERENCES:
patent: 2847820 (1958-08-01), Leach
patent: 5398504 (1995-03-01), Hirota et al.
patent: 5438830 (1995-08-01), Matsumura
patent: 6182447 (2001-02-01), Hashimura et al.
patent: 6374600 (2002-04-01), Uegane et al.
patent: 2001-227337 (2001-08-01), None

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