Patent ID: 8448622
Filing Date: 2013-05-28
Classification: F02D,F02M

Abstract:
1. An internal combustion engine comprising: a cylinder; a piston configured to reciprocate in the cylinder to generate a pressure pulse; a carburetor including an air intake, a fuel chamber in fluid communication with the air intake, a choke valve having a choke shaft disposed in the air intake, and an actuator configured to move the choke valve between a closed choke position and an open choke position; a passageway configured to direct the pressure pulse into the fuel chamber of the carburetor, at least a portion of the passageway extending through the choke shaft; and a priming valve at least partially located within the passageway, the priming valve configured to move between an open primer position that allows the pressure pulse to enter the fuel chamber through the passageway and a closed primer position that substantially restricts the pressure pulse from entering the fuel chamber through the passageway, wherein the priming valve is configured to move between the open primer position and the closed primer position by the actuator when the actuator moves the choke valve between the closed choke position and the open choke position, respectively.