Exhaust conveying system for internal combustion engines

Details Exhaust conveying system for internal combustion engines Exhaust conveying system for internal combustion engines

1973-05-30

1977-05-10

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60323, 138122, F01N 710

Patent

active

040220192

ABSTRACT:
An exhaust conveying system for internal combustion engines, in which the exhaust pipes connecting the engine head with a single exhaust manifold comprise each at least a pair of tubular members, at least one of the tubular members being made of thin sheet having circumferential corrugations, with the crests of the corrugations being adherent to the surface of the other tubular member so as to define air spaces between the tubular members. As consequence, the heat losses from the exhaust pipes are strongly reduced, thus improving the post-combustion of unburned components of the exhaust gases which takes place downstream of the exhaust pipes. The exhaust pipes can also be provided with a porous layer of a ceramic material bonded to their inner wall.

REFERENCES:
patent: 2204294 (1940-06-01), Blanchard
patent: 2770313 (1956-11-01), Johnson
patent: 3043094 (1962-07-01), Nichols
patent: 3060069 (1962-10-01), Sindars
patent: 3104734 (1963-09-01), Ludlow
patent: 3133612 (1964-05-01), Sailler
patent: 3457723 (1969-07-01), Kerns
patent: 3581494 (1971-06-01), Scheitlin
patent: 3740930 (1973-06-01), Cullom
patent: 3750403 (1973-08-01), Deutschmann
patent: 3768260 (1973-10-01), Glenn

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