Reed valve assembly for an intake manifold and method of assembl

Details Reed valve assembly for an intake manifold and method of assembl Reed valve assembly for an intake manifold and method of assembl

1992-09-03

1993-10-19

Cross, E. Rollins

Internal-combustion engines

Multiple cylinder

137856, F02M 3500

Patent

active

052536173

ABSTRACT:
A valve assembly is provided for location in a fluid flow path between an intake manifold and a cylinder for preventing blow back from the cylinder into the manifold and for reducing back pressure in said manifold on an internal combustion engine. The assembly comprises a plurality of valved units each having an inlet and an outlet. The inlet is operatively connected to the intake manifold, and the outlet is operatively connected to the cylinder. A valve member is disposed on each of the units and is flexible between a valve open position where the member is offset from the outlet, and a valve closed position where the member operatively closes the outlet, thereby preventing reversed fluid flow from the cylinder into the intake manifold. A novel method of assembling the reed valve assembly of the present invention is also provided. This method comprises the steps of molding a main body comprising an inlet and an outlet from a plastic material, and insert molding a valve petal member in the main body for opening and closing the outlet. A further step includes overmolding a cushioning surface adjacent the outlet against which the petal member engages and seals for closing the outlet.

REFERENCES:
patent: 1672436 (1928-06-01), Thege
patent: 4422416 (1983-12-01), Bernardoni
patent: 4955329 (1990-09-01), D'Angelo et al.
patent: 5018486 (1991-05-01), Davis et al.
patent: 5027754 (1991-07-01), Morone
patent: 5103867 (1992-04-01), Wu

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