Exhaust manifold

Details Exhaust manifold Exhaust manifold

1996-12-23

1998-08-04

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Pulsed, timed, tuned or resonating exhaust

60323, F01N 710

Patent

active

057877092

ABSTRACT:
An exhaust manifold of which each exhaust port is formed by a pipe member is disclosed. Each pipe member at one end portion has a wedge shape section. Each pipe member at the other end portion is connected to the cylinder head of an engine. The pipe members are abutted one another in the one end portion to form the merging portion of the exhaust manifold. A plurality of radial partition walls are formed in the merging portion by joining end surfaces of the pipe members one another. In the exhaust manifold, two adjacent partition walls among the partitions walls are arranged almost symmetrically around a plane which passes through the center of the merging portion and is parallel to a direction in which the largest force is generated by thermal expansions of the exhaust ports.

REFERENCES:
patent: 2841951 (1958-07-01), Whitcomb
patent: 3670844 (1972-06-01), Penfold
patent: 3726084 (1973-04-01), Meier
patent: 4815274 (1989-03-01), Piatti
Copending U.S. Patent Application Serial No. 626,737.

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