Internal-combustion engines – Multiple cylinder
Patent
1983-04-04
1985-02-26
Feinberg, Craig R.
Internal-combustion engines
Multiple cylinder
F02M 3510
Patent
active
045012350
ABSTRACT:
An automotive type engine is provided with an intake manifold having tuned runners all of the same length and each extended to a substantial length sufficient to tune the runner, and each of which are coiled unidirectionally approximately 270.degree. from the plenum essentially around and beneath the same for connection to the engine cylinder head mounting flange, the runners each tapering or flaring in a decreasing manner for approximately the last half of their length closest to the engine cylinder head to maintain a constant fuel velocity and thereby decrease the tendency of wall wetting resulting from a normal slowing down of the fuel as it progresses along an extended length runner, the runners and plenum being heated to lessen fuel condensation, the runners being provided with large and progressive coil radii to minimize centrifugal force deposition of fuel on the walls, and the entire intake manifold fitting beneath the engine air cleaner essentially within the same area as a conventional intake manifold having short runners.
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Feinberg Craig R.
Ford Motor Company
McCollum Robert E.
Okonsky David A.
Sadler Clifford L.
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