Patent ID: 7484648

Claim:
A setting tool for driving fastening elements in a constructional component, comprising: at least one combustion chamber ( 11 ) for receiving an oxidant-fuel gas mixture; a piston guide ( 17 ) located adjacent to the combustion chamber ( 11 ); a drive piston ( 15 ) for driving the fastening elements in and displaceable in the piston guide ( 17 ) by combustion gases produced by combustion of the oxidant-fuel gas mixture in the combustion chamber ( 11 ); ventilator means ( 20 ) for producing turbulence in gases in the combustion chamber ( 11 ) and including a ventilator drive ( 21 ); a compression device ( 30 ) for compressing gases fed into the combustion chamber ( 11 ), the compression device being driven by the ventilator drive ( 21 ), wherein the compression device ( 30 ) includes a charging cylinder ( 32 ) to which fuel and oxidant are delivered, and a displacement body ( 31 ) displaceable in the charging cylinder ( 32 ) and connectable with the ventilator drive ( 21 ); and a gear drive ( 23 ) connected with a take-off drive ( 22 ) of the ventilator drive ( 21 ), and a coupling ( 24 ) connecting the gear drive ( 23 ) with operational means for the displacement body ( 31 ).