Patent ID: 7424870

Claim:
A combustion-engined setting tool for driving fastening elements in a constructional component, comprising: a combustion chamber ( 13 ) for combusting an oxidant-fuel mixture for generating combustion energy for driving the setting tool and having an inlet opening ( 15 ) and an outlet opening ( 19 ); means ( 26 , 27 ) for closing the inlet opening ( 15 ) and the outlet opening ( 19 ); ventilator means ( 41 ) for generating a gas flow from the inlet opening through the combustion chamber ( 13 ) and toward the outlet opening ( 19 ); and a combustion-energy driven drive unit ( 42 ) for driving the ventilator means ( 41 ) and including an energy accumulator ( 47 ) for storing mechanical energy generated by the combustion energy and having an output thereof connected with the ventilator means ( 41 ).