Fuel metering valve assembly for internal combustion engines

Details Fuel metering valve assembly for internal combustion engines Fuel metering valve assembly for internal combustion engines

1977-10-05

1979-10-16

Cohan, Alan

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

261 50A, 261 88, F02M 3900

Patent

active

041709756

ABSTRACT:
A fuel metering valve assembly includes an air flow metering member which actuates the movable part of a fuel metering valve. Depending on the displacement of this movable part, two cooperating openings, a control slot and a shaped control orifice, together define the effective flow cross section for the fuel delivered to the engine. In order to improve the resolution of the path of the moving part of the valve assembly, one of the cooperating openings, e.g. the control orifice, is formed as a triangular opening in a sleeve or bushing surrounding an axially slidable shaft which supports the air flow rate-responsive member. The triangular opening may also be defined within the wall of the shaft. The width of the control slot is defined by a spacer ring between two coaxial partial bushings and one edge of the triangular opening is defined by the oblique line separating two partial sleeves.

REFERENCES:
patent: 3920778 (1975-11-01), De Rugeris
patent: 3953547 (1976-04-01), Schoeman
patent: 4090486 (1978-05-01), Stumpp

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