Patent ID: 8267298

Claim:
A combustion-engined setting tool for driving fastening elements in a workpiece, comprising: a combustion chamber ( 14 ) for an oxidant-fuel gas mixture; a guide cylinder ( 12 ) adjoining the combustion chamber at one end thereof; a setting piston ( 13 ) displaceable in the guide cylinder ( 12 ) for driving a fastening element in the workpiece; a plate-shaped member ( 17 ) axially displaceable in the combustion chamber ( 14 ) for creating turbulence therein; displacing means ( 33 ) for displacing the plate-shaped member ( 17 ); a holding device ( 30 ) for retaining the plate-shaped member ( 17 ) at an axial end ( 15 ) of the combustion chamber ( 14 ) against action of the displacing means ( 33 ), the holding device ( 30 ) having magnetic means ( 31 ) for producing a holding force for retaining the plate-shaped member ( 17 ); and means for overpowering the holding force produced by the magnetic means ( 31 ).