Exhaust system for eight-cylinder engine

Details Exhaust system for eight-cylinder engine Exhaust system for eight-cylinder engine

2007-07-27

2010-12-28

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Common receiver having inlets from plural cylinder

C060S274000, C060S324000

Reexamination Certificate

active

07856813

ABSTRACT:
An exhaust manifold includes first to eighth upstream exhaust pipes extending respectively from first to eighth cylinders ignited in that order; first to fourth midway exhaust pipes extending respectively from a joint of extended ends of the first and fifth upstream exhaust pipes, a joint of extended ends of the second and sixth upstream exhaust pipes, a joint of extended ends of the third and seventh upstream exhaust pipes, and a joint of extended ends of the fourth and eighth upstream exhaust pipes; and first and second downstream exhaust pipes extending respectively from a joint of extended ends of the first and third midway exhaust pipes and a joint of extended ends of the second and fourth midway exhaust pipes for communicating the respective joints to the ambient atmosphere.

REFERENCES:
patent: 2000-265836 (2000-09-01), None
U.S. Appl. No. 11/829,499, filed Jul. 27, 2007, entitled Exhaust Device for Outboard Motor.

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