Patent ID: 6062179
Filing Date: 2000-05-16
Classification: F02B,F02M,Y10S

Abstract:
An engine comprising an engine block having at least one combustion chamber with a piston movably mounted therein, an intake for an air/fuel mixture, a throttle for controlling the amount of air/fuel mixture introduced into said combustion chamber, and a carburetor comprising an air flow path extending therethrough in communication with said intake of said engine, a fuel pump formed in said carburetor for pumping fuel from a fuel source through a delivery check valve to a fuel delivery chamber formed in said carburetor, a diaphragm operated main control valve downstream of said delivery check valve for controlling the delivery of fuel to said fuel delivery chamber, a first fuel discharge source including a first fuel line extending from said fuel delivery chamber to said air flow path for delivering fuel thereto, and a second fuel source for providing an additional amount of fuel to said engine, said second fuel source comprising a second fuel line communicating said fuel delivery chamber with said air flow path, and an enrichment valve for controlling the flow of fuel through said second fuel line.