Patent ID: 6394425
Filing Date: 2002-05-28
Classification: F02M,Y10T

Abstract:
A carburetor comprising:a body having an air intake passage and a cylindrical valve chamber defined within said body perpendicular to said air intake passage, said valve chamber having a bottom face with at least one tapered bore formed therein; a throttle valve inserted into said valve chamber, said throttle valve having a bottom face with at least one circumferentially extending cam surface formed thereon, said cam surface being inclined along the circumference thereof; a throttle valve lever capable of imparting rotation to said throttle valve; a ball received in said at least one tapered bore of said valve chamber and adapted to engage said at least one cam surface of said throttle valve to cause, when the throttle valve rotates, axial displacement of the throttle valve with such rotational and axial movement of the throttle valve controlling flow of fuel and air through the carburetor; the minimum diameter of each said tapered bore being smaller than the outside diameter of said ball received in said tapered bore, the depth of said tapered bore being greater than the radius of said ball received therein, and said ball being press fit into said tapered bore with a portion of its surface projecting from said tapered bore.