Patent ID: 7461766
Filing Date: 2008-12-09
Classification: B25C

Abstract:
1. A combustion power tool comprising: a combustion chamber in which a fuel is burned, a fuel supplier that supplies the fuel into the combustion chamber, the fuel supplier comprising an igniter disposed in the combustion chamber, a driving mechanism actuated to perform a predetermined operation by utilizing a combustion pressure, the combustion pressure being generated when the fuel is burned in the combustion chamber by the igniter, and a single actuator means for actuating the fuel supplier and the igniter, wherein in a first position of the actuator means, the auxiliary chamber receives a predetermined amount of the fuel from the fuel tank and stores the predetermined amount of the fuel in a pressurized state, and in a second position of the actuator means, the fuel is supplied from the auxiliary chamber into the combustion chamber and the igniter is actuated to perform ignition in response to and dependent upon changes in the pressure of the fuel within the auxiliary chamber as the fuel is supplied into the combustion chamber.