摘要:
A portable, internal combustion-engined tool includes a combustion chamber (1), a piston (8) adjoining the combustion chamber (1), with a pressure build-up in the combustion chamber (1) providing for movement of the piston (8) from its initial position, in which the piston adjoins the combustion chamber (1), away from the combustion chamber (1). A brake device (43) retains the piston (8) substantially in its initial position during build-up of pressure in the combustion chamber (1), with a braking force applied to piston (8) being changeable for adjusting the amount of energy generated in the combustion chamber and transmittable to the piston (8).
摘要:
A method of driving a piston (80 of a portable, internal combustion, engine tool by combusting a combustible gas mixture in a combustion chamber (1) having a combustion chamber wall (14) located opposite the piston (8), the method including dividing the combustion chamber (1) in at least two chamber sections (21, 22) by providing, between the combustion chamber wall (14) and the piston (8), a separation plate (18) having a plurality of through-openings (38) and separately adjusting the combustible gas mixture in each chamber section (21, 22).
摘要:
A portable, combustion-engined tool including a collapsible combustion chamber (1) having a movable separation plate (18) for dividing the combustion chamber (1), in an expanded position of the combustion chamber, in a forechamber section (21) and at least one further chamber section (22), a movable combustion chamber wall (14) arranged parallel to the separation plate (18) for limiting, together with the separation plate (18), the forechamber section, an ignition device (52) located in the forechamber section (21), and a collapse control device (19, 20, 33) for controlling movement of the separation plate (18) and the movable wall (14) after the combustion of the gas mixture in the combustion chamber.
摘要:
A device for creating a laminar flame front in an internal combustion-engined tool having a combustion chamber (1) with two walls (14, 18) extending parallel to each other, the device including a cage (51) located between the two walls (14, 18) and having a plurality of openings (53) formed in an otherwise solid circumferential wall of the cage (51), and an ignition element (52) located in a cage interior for igniting a combustible gas mixture located between the two walls (14, 18).
摘要:
A portable, combustion-engined tool including a combustion chamber (1) in which a fuel gas in combusted upon ignition for building up pressure in the combustion chamber for driving the tool piston (8), an ignition device (20) for igniting the fuel gas in the combustion chamber (1), and gas drain means (43) provided in the combustion chamber (1) for controlling a pressure build-up therein.
摘要:
A metering head for delivering a liquified fuel gas in different combustion chamber sections of a tool and including an inlet (8), at least two outlets (16, 17), and at least one metering valve (5, 5a, 5b) connecting the inlet (8) with the at least two outlets (16, 17).
摘要:
A combustion-engined setting tool for driving fasting elements such as nails, bolts, pins in an object, includes a combustion chamber (13), a fuel source (11), a fuel conduit (12) connecting the fuel source (11) with combustion chamber (13) for feeding fuel thereinto, and at least one metering device (30) for metering a predetermined amount of fuel for effecting a setting process and having at least one variable volume metering chamber (31), and a displaceable piston body (34) for a pulsed ejection of fuel from the metering chamber (31).
摘要:
A method of controlling operation of a portable, combustion-engined tool including a combustion chamber (1) an inlet/outlet valve (26) of which is closed or is opened dependent on an operational phase of the tool, with the method including igniting a fuel gas mixture filling the combustion chamber (1) for build-up of gas pressure therein and closing or opening the inlet/outlet valves (26) dependent on the gas pressure developed in the combustion chamber (1), and a tool in which the method is implemented.
摘要:
The invention relates to a device for transmitting energy to a fastener, with a reaction chamber, an energy-transmission element that can move in a fastening direction for transmitting energy released in the reaction chamber to a fastener, a first supply channel opening into the reaction chamber for feeding a first reagent to the reaction chamber, wherein the first supply channel comprises a feeder device with a rotor and a feeder element for feeding the first reagent into the reaction chamber.
摘要:
A combustion-operated setting tool for driving in fastening elements includes a propellant container receptacle (16) for receiving a propellant container (20), a connection element (14) provided in the propellant container receptacle (16) for connection with the propellant container (20), a propellant conduit (15) for connecting the connection element (14) with the tool combustion chamber (12), a metering device (13) for controlling flow of propellant from the connection element (14) to the combustion chamber, and a damping arrangement (30) for damping the metering device (13).