Manifold tuning structure

Details Manifold tuning structure Manifold tuning structure

1986-11-26

1988-10-25

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Pulsed, timed, tuned or resonating exhaust

181240, 181250, 181273, F01N 710

Patent

active

047794151

ABSTRACT:
An exhaust manifold for attachment to an engine having a plurality of exhaust ports is provided. The exhaust manifold includes an exhaust conduit that is in fluid communication with selected exhaust ports, with the exhaust conduit being formed to include separate primary and auxiliary outlet openings. The exhaust manifold also includes a tuning tube that is formed to include an inlet opening that is in acoustic communication with the auxiliary outlet opening, and an outlet opening. The exhaust manifold also has a chamber for providing a static volume that is in acoustic communication with the outlet opening of the tuning tube.

REFERENCES:
patent: 1760557 (1930-05-01), Jupp
patent: 2124489 (1938-07-01), Hurlock
patent: 2297046 (1942-09-01), Bourne
patent: 3396812 (1968-08-01), Wilcox
patent: 4281741 (1981-08-01), Blaser

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