US 4,359,035 AGranted

Intake manifold fuel atomizing screen

OwnerEdward E. Johnsoninventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

A dished screen placed in engine intake manifold openings beneath a carburetor in the path of intake air flow with, under a one-barrel carburetor one recess dished screen being used, and with a two-barrel carburetor two recess dished screens being used. The screen units are positioned so that fuel laden air from the carburetor passes through screening of the screen units with the mesh and wire size of the screening coupled with depressed dished shape of the screen units such as to optimize vaporization atomizing of fuel in the fuel air mixture being fed to the engine. The proper shape and screening size of the dished screen units is an excellent trade-off of intake air/fuel mixture flow obstruction for more efficient fuel utilization resulting in more power and significantly improved mileage and decreased undesired emissions.

Claims7

Dependent claims

In an internal combustion engine intake manifold system having openings beneath engine carburetors and a PCV vacuum flow line communicating the PCV valve with the vacuum inlet of the intake manifold system:

a screen unit of relatively fine mesh screening of at most a 30--30 mesh screen with maximum wire diameter of 0.020 inches having a depending formed depression sized to fit the intake opening of the intake manifold beneath a barrel of a carburetor with the depending formed depression extending down and away from the carburetor;
a mounting flange surrounding the depending formed depression sized to be clamped with a carburetor gasket between the carburetor mounting boss on the intake manifold;
wherein said depending formed depression has walls angled inward and away from the wall of said intake opening, and an adjustable air vacuum valve "T" fitting with an air bleed opening into the PCV vacuum line, said screen unit and "T" fitting cooperating to establish and to maintain a predetermined air/fuel combustion mixture ratio for the intake manifold system.

Dependencies are inferred from the claim text.