초록 ▼

A fuel system is provided for a combustion-powered tool having a self-contained internal combustion power source with a combustion chamber, and constructed and arranged for driving a drive blade to impact a fastener and drive it into a workpiece. The tool includes a housing having a main chamber enc

A fuel system is provided for a combustion-powered tool having a self-contained internal combustion power source with a combustion chamber, and constructed and arranged for driving a drive blade to impact a fastener and drive it into a workpiece. The tool includes a housing having a main chamber enclosing the power source and having a first end adjacent a nosepiece wherein the fasteners are positioned prior to driving, and a second end opposite the first end and adjacent the combustion chamber. A fuel cell chamber is in communication with the main chamber and has a first chamber end corresponding to the first end of the main chamber and a second chamber end corresponding to the second end of the main chamber. A fuel metering valve is disposed in the fuel cell chamber at the first end so that a fuel cell having a fuel outlet end operationally inserted into the fuel cell chamber will engage the valve so that fuel is dispensed into the valve in a location closer to the first chamber end than to the second chamber end.

대표청구항 ▼

[ What is claimed is:] [3.] A combustion-powered tool having a self-contained internal combustion power source with a combustion chamber having a spark plug located at a first end, the power source being constructed and arranged for driving a driver blade to impact a fastener and drive it into a wor

[ What is claimed is:] [3.] A combustion-powered tool having a self-contained internal combustion power source with a combustion chamber having a spark plug located at a first end, the power source being constructed and arranged for driving a driver blade to impact a fastener and drive it into a workpiece, comprising:a housing having a main chamber enclosing the power source and a handle portion releasably connected to said main chamber, a fuel cell chamber disposed in close proximity to said handle portion and having an end in communication with said combustion chamber; andan electronic fuel metering valve located in said fuel cell chamber so that fuel is emitted from said valve into said combustion chamber at an end of said combustion chamber opposite the spark plug.