Exhaust manifold for opposed cylinder engines

Details Exhaust manifold for opposed cylinder engines Exhaust manifold for opposed cylinder engines

1985-04-29

1987-05-05

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Pulsed, timed, tuned or resonating exhaust

60322, 60323, F02B 2702, F01N 700

Patent

active

046621733

ABSTRACT:
An exhaust manifold for multi-cylinder, opposed piston engines includes a collector, a plurality of conduits, each connecting an exhaust port from a cylinder to the collector and each conduit includes a thermal expansion joint to permit differential thermal expansion between the engine body and the substantially hotter exhaust conduit and thus to avoid undesirable stresses in the conduits. Preferably, the expansion joint is formed by overlapping portions of conduit sections which include axial as well as radial clearances therebetween for thermal expansion. In the event that the engine is to be turbocharged, the manifold can be covered with a thermal blanket to prevent heat losses from the exhaust system. In such a case, the expansion joint includes a resilient seal member between the overlapping conduit portions which seals the conduit sections to each other despite substantially similar thermal growth in each of the insulated blanketed conduit sections.

REFERENCES:
patent: 2841951 (1958-07-01), Whitcomb
patent: 3864909 (1975-02-01), Kern
patent: 3940927 (1976-03-01), Maurhoff
patent: 4103487 (1978-08-01), Yamazaki
patent: 4197704 (1980-04-01), Date
patent: 4341186 (1982-07-01), Mayr et al.
patent: 4475341 (1984-10-01), Inoue

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