Intake manifold/fuel rail and method

Details Intake manifold/fuel rail and method Intake manifold/fuel rail and method

1990-08-07

1991-11-05

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

123456, 2989008, 138 90, F02M 5502, F16L 5510

Patent

active

050624059

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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patent: 4844152 (1989-07-01), Hummert

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