Intake manifold/fuel rail

Details Intake manifold/fuel rail Intake manifold/fuel rail

1991-12-16

1992-11-17

Cross, E. Rollins

Internal-combustion engines

Charge forming device

Fuel injection system

123468, 123 52MV, F02M 5502, F02B 7518

Patent

active

051634066

ABSTRACT:
A multiple-runner intake manifold is constructed of upper and lower parts that fit together at a joint. The upper manifold is molded thermoplastic, and the lower part is molded phenolic. The lower part contains an integral fuel rail. The lower part contains a portion of each runner. Those portions are formed as separate through-passages during molding of the lower part in the cavity of a multi-part mold. The fuel passages are molded as through-holes some ends of which are subsequently plugged by closures and other ends of which receive fittings.

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