Engine with charge equalizing intake manifold

Details Engine with charge equalizing intake manifold Engine with charge equalizing intake manifold

1976-12-06

1978-10-10

Myhre, Charles J.

Internal-combustion engines

Multiple cylinder

123141, F02B 7518, F02M 2904

Patent

active

041190670

ABSTRACT:
An internal combustion engine, particularly a four cylinder four stroke cycle engine, has adjoining cylinders arranged in pairs with adjacent or siamesed intake ports and timed sequentially so that the intake event of one of the adjoining cylinders overlaps or closely follows the intake event of the other of the adjoining cylinders. The adjacent intake ports of the adjoining cylinders are fed by common manifold runners which are offset at their connections with their respective intake ports to favor delivery of air-fuel mixture to the first of the sequentially timed cylinders to a degree to offset inherent manifold pulsing effects that tend to favor delivery of a larger charge to the second of the sequentially timed cylinders. Thus, charge distribution among the engine cylinders is substantially equalized. The engine manifold also includes ridges adjacent the mixture plenum extending transversely across the flat manifold floor to direct liquid fuel crossing the ridges up into the airstream for mixing and vaporization.

REFERENCES:
patent: 1333142 (1920-03-01), Ulmer
patent: 1768551 (1930-07-01), Fekete
patent: 1771886 (1930-07-01), Fekete et al.
patent: 2043079 (1936-06-01), Timian
patent: 2163040 (1939-06-01), Jacoby
patent: 3054390 (1962-09-01), Meurer et al.
patent: 3374775 (1968-03-01), Ferguson

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