Patent ID: 6769670
Filing Date: 2004-08-03
Classification: F02M

Abstract:
A carburetor, comprising:a body having an air intake passage, and a throttle valve chamber communicated with the air intake passage; a rotary throttle valve slidably and rotatably received in the throttle valve chamber between idle and wide open positions to control the delivery of a fuel and air mixture to the engine, and having a through hole to control the flow of air from the carburetor; a fuel nozzle carried by the body and through which fuel flows prior to being discharged from the carburetor; a start shaft carried by the carburetor body for movement between first and second positions; an actuator operably associated with the start shaft for movement in response to movement of the start shaft from its first position to its second position to both slidably and rotatably move the throttle valve in a direction increasing both the quantity of air flow through the throttle valve through hole and the effective flow area of the fuel nozzle compared to the air flow through the throttle valve through hole and the effective flow area of the fuel nozzle when the throttle valve is in an idle position.