Patent ID: 7383861
Filing Date: 2008-06-10
Classification: F02M,Y02T,Y10T

Abstract:
1. A gaseous fuel device comprising: a restriction in a carburetion system configured to draw a gaseous fuel into said carburetion system, mix said gaseous fuel with air and discharge a fuel air mixture for combustion, said restriction including a restriction diameter; an air inlet coupled within said restriction, said air inlet configured to reduce a flow area from an air inlet first end to an air inlet second end; a fuel air outlet coupled within said restriction, said fuel air outlet configured to increase said flow area from a fuel air outlet first end to a fuel air outlet second end, said fuel air outlet first end proximate said air inlet second end; a throat coupled within said restriction between said air inlet second end and said fuel air outlet first end; a gaseous fuel supply passage in fluid communication within said restriction and proximate said throat, wherein said gaseous fuel supply passage is located between said air inlet first end and said fuel air outlet second end from about 40 percent to about 55 percent of said length measured from said fuel air outlet second end; a length comprising a distance from said air inlet first end to said fuel air outlet second end; a ratio between said restriction diameter and said length comprising at most 1.38 to 1; and wherein said air inlet and said gaseous fuel supply passage are configured as one of said air inlet having a radius with said gaseous fuel supply passage formed as slots, said air inlet having a radius with said gaseous fuel supply passage formed as bores, and said air inlet having a taper with said gaseous fuel supply passage formed as slots.