Internal-combustion engines – Multiple cylinder
Patent
1976-04-22
1978-02-07
Schwadron, Martin P.
Internal-combustion engines
Multiple cylinder
123119A, 123122AB, F02M 2506, F02B 2700
Patent
active
040721337
ABSTRACT:
An intake manifold for a V-type internal combustion engine has transversely spaced longitudinal plenums feeding lateral plenum passages and fed by individual risers. The latter are joined by short lateral passages to a longitudinal exhaust gas recirculation passage extending between the plenums. These joined passages are formed so that no unconnected portions are located in vertical overlapping relation, and thus the joined passages may be formed in casting by a single monolevel core. A separate exhaust gas crossover passage connected with a metered exhaust recirculation passage is formed by a second core, while a third core is used to form a separate water crossover passage. The arrangement reduces the number of cores used to three from the five used in previous similar manifold arrangements.
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General Motors Corporation
Outland Robert J.
Schwadron Martin P.
Walton G. L.
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