Method of making an intake manifold/fuel rail

Details Method of making an intake manifold/fuel rail Method of making an intake manifold/fuel rail

1990-08-07

1992-03-24

Cuda, Irene

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

29428, 295271, 123406, 264334, B23P 1500

Patent

active

050975943

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.

REFERENCES:
patent: 4083910 (1978-04-01), Tits et al.
patent: 4123836 (1978-11-01), Buckell
patent: 4699100 (1987-10-01), Leydorf, Jr. et al.

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