EP3393714A1 - Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts - Google Patents
Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgerätsInfo
- Publication number
- EP3393714A1 EP3393714A1 EP16819068.4A EP16819068A EP3393714A1 EP 3393714 A1 EP3393714 A1 EP 3393714A1 EP 16819068 A EP16819068 A EP 16819068A EP 3393714 A1 EP3393714 A1 EP 3393714A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- main combustion
- setting
- pressure
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000010304 firing Methods 0.000 title abstract 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 105
- 239000007789 gas Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000000446 fuel Substances 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 2
- 238000004590 computer program Methods 0.000 claims description 2
- 239000003570 air Substances 0.000 description 17
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
- B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
- B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
Definitions
- the invention relates to a combustion-powered setting tool for driving fasteners into a substrate, having at least one main combustion chamber for a fuel, with a driving piston which is driven via expandable gases from the main combustion chamber in a setting direction, and with an antechamber, which is associated with an ignition device and in which a pressure acting on the main combustion chamber pressure before the ignition of a fuel-air mixture in the main combustion chamber is buildable.
- the invention further relates to a method for operating such a setting device.
- German Offenlegungsschrift DE 10 32 035 A1 discloses a combustion-operated setting tool for driving fastening elements into a substrate, with at least one main combustion chamber for a fuel, with a driving piston mounted in a piston guide, which can be driven in the setting direction by means of expanding gases from the main combustion chamber.
- German patent application DE 40 10 517 A1 is a gas-operated setting tool for fastening elements with a driving piston known, which is guided in a working space, and with at least one opposite to the working driving direction of the driving piston to the working space subsequent combustion chamber for the gas, wherein the combustion chamber has a vent opening into the open, the opening cross section of a regulating slide adjustable is.
- the object of the invention is the effectiveness and / or functionality when driving fasteners with a combustion-powered setting tool with at least one main combustion chamber for a fuel, with a driving piston which is driven via expandable gases from the main combustion chamber in a setting direction, and with an antechamber , which is associated with an ignition device and in which a pressure acting on the main combustion chamber pressure before the ignition of a fuel-air mixture in the main combustion chamber can be built up to improve.
- the object is with a combustion-powered setting tool for driving fastening elements into a substrate, with at least one main combustion chamber for a fuel, with a driving piston which can be driven via expandable gases from the main combustion chamber in a setting direction, and with an antechamber which assigns an ignition device is and in the prior to the ignition of a fuel-air mixture in the main combustion chamber, a pressure acting on the main combustion chamber pressure builds up, solved in that the antechamber is associated with a valve device via which a maximum supercharging pressure in the prechamber can be varied to the to adjust setting power provided during a setting process.
- the valve device is, for example, a blow-off valve which is assigned to the prechamber.
- Compared to one of the main combustion chamber associated blow-off valve provides, inter alia, the advantage that the setting energy can be finely adjusted. This is due, for example, to the fact that less pressure is built up in the precombustion in the pre-chamber than in the main combustion in the main combustion chamber. Thus, with the same valve opening duration, less air is blown off via the blowoff valve assigned to the prechamber.
- the demands on the switching times of the pre-chamber associated bleed valve are not so high, since the pre-combustion runs slower than that Main combustion. For example, the pre-combustion takes about four times as long as the main combustion.
- a preferred embodiment of the combustion-powered setting tool is characterized in that the valve device is designed as a manually operated blow-off.
- the blow-off valve can be operated, for example, directly by hand or via an adjusting element, for example a setting wheel.
- a further preferred embodiment of the combustion-powered setting tool is characterized in that the valve device is designed as a pressure control valve.
- the valve device is advantageously designed as a controllable pressure relief valve.
- valve device is electrically controlled by an electronic control.
- the control can be done via an electrical signal resulting from an evaluation of a previous settlement.
- a further preferred embodiment of the combustion-powered setting device is characterized in that the electronic control comprises a user interface. Via the user interface, a user of the setting device can advantageously digitally adjust the energy for a subsequent setting. As a result, the quality of the subsequent settlement can be improved.
- a further preferred embodiment of the combustion-powered setting tool is characterized in that the valve device is connected in terms of control to a sensor device which comprises at least one sensor.
- state variables can be detected, which are not constant when operating the setting device. These are, for example, temperatures or pressures that change depending on location or time.
- a further preferred embodiment of the combustion-powered setting tool is characterized in that the sensor device comprises at least one temperature sensor, a pressure sensor, an acceleration sensor, a speed sensor and / or a sensor for detecting a height in which the setting device is currently located.
- the sensor for detecting a height can also be referred to as an altimeter.
- a current pressure during operation of the bolt gun can be detected.
- the pressure sensor can advantageously be detected in the pre-chamber pressure.
- a current temperature can be detected during operation of the bolt gun.
- a temperature in the antechamber can be detected with the temperature sensor.
- state variables, such as the pressure or the temperature, in the main combustion chamber can also be detected with the sensor device.
- a further preferred embodiment of the combustion-powered setting tool is characterized in that the main combustion chamber is associated with a valve device, via which a maximum pressure in the main combustion chamber can be limited.
- the ease of use during operation of the setting device may still be controlled by the combination of the two valve devices.
- the valve device is preferably designed as a controllable pressure relief valve. With the valve device can advantageously be set a desired maximum pressure during combustion in the main combustion chamber.
- a further preferred embodiment of the combustion-powered setting tool is characterized in that the setting device comprises a control device, via which the setting energy is determined from a differential pressure between the main combustion chamber and an ambient pressure.
- the pre-chamber comprises at least one passage opening which can be closed by the control device. About the open passage, the pre-chamber is connected in particular via an exhaust with the environment.
- the control device is connected in terms of pressure with the main combustion chamber. Due to the control pressure connection, the control device is actuated during operation of the setting device with the main combustion chamber pressure. When the pressure in the main combustion chamber reaches a certain pressure level, then the at least one passage opening of the antechamber is automatically opened.
- the invention further relates to a method for operating a previously described combustion-powered setting tool.
- gas cartridges are used to provide the setting energy. Due to the precombustion in the pre-chamber before the actual main combustion, the set energy provided by the setting tool can be increased without increasing the size of the setting device. By burning at elevated pressure, the efficiency of the setting device can be increased because the combustion processes run more efficiently at higher pressure.
- the user of the Setting device in a simple manner allows to set the setting energy of the setting device regardless of currently prevailing environmental conditions. As a result, applications with a lower energy requirement can also be operated with advantage.
- the invention also relates to a computer program product with a program code for performing a method described above, in particular when the program is executed in the control of the setting device.
- Figure 1 is a combustion-powered bolt gun in a non-pressed initial state at a purging of a main combustion chamber in plan view;
- Figure 2 shows the bolt setting device of Figure 1 in longitudinal section
- FIG. 3 shows the bolt setting tool from FIGS. 1 and 2 in a pressed-on state with the main combustion chamber closed in plan view;
- Figure 4 shows the bolt setting device of Figure 3 in longitudinal section;
- Figure 5 shows the bolt setting device of Figures 3 and 4 in a perspective view
- FIG. 6 shows the bolt setting tool from FIGS. 1 to 5 when ignited in the main combustion chamber in longitudinal section with opened vent connections;
- FIGS. 1 to 6 shows the bolt setting tool from FIGS. 1 to 6 in a longitudinal section in the case of a thermal return of a drive piston with closed vent connections;
- FIG. 8 is a perspective view of a control device of the bolt setting device from FIGS. 1 to 6;
- Figure 9 shows the control device of Figure 8 in plan view
- Figure 10 is a perspective view of a check valve device which is integrated in the control device of Figures 8 and 9;
- Figure 1 1 is a perspective view of the control device of Figures 8 and 9 without the check valve device, which is shown in Figure 10 alone.
- FIG. 12 shows the bolt setting device from FIG. 1 according to an exemplary embodiment with an electronic regulation of pressure limiting valves
- FIG. 13 shows the bolt setting device from FIG. 1 according to an exemplary embodiment with manual regulation of pressure limiting valves.
- a setting device 1 is greatly simplified in a longitudinal section in various operating states and views shown.
- the setting device 1 shown in FIGS. 1 to 7 can be operated with a fuel gas or with a vaporizable liquid fuel.
- the setting device 1 comprises a housing 3 with a master cylinder 5, which limits a main combustion chamber 6.
- the main combustion chamber 6 can be supplied via an inlet device 8 gas and / or air.
- the main combustion chamber 6 is assigned an ignition device 9.
- a driving piston 10 is guided in the figures 1 to 7 back and forth movable.
- the driving piston 10 comprises a piston rod 1 1, which starts from a piston head 12.
- a the piston head or piston plate 12 facing away from setting 14 of the piston rod 1 1 is arranged in a bolt guide, which serves to guide fasteners, which are also referred to as bolts.
- a bolt guide which serves to guide fasteners, which are also referred to as bolts.
- the setting end 14 of the piston rod 1 1 of the driving piston 10 is shown cut off.
- the bolt guide with the piston rod 1 1 arranged therein of the driving piston 10 is also referred to as a network.
- a fastener such as a nail, bolts or the like
- the setting tool 1 is pressed with his pin guide to the ground and triggered.
- a switch (not shown) is used, which is also called a trigger switch.
- the switch is provided, for example, on a (also not shown) handle of the setting device 1.
- a setting direction is indicated in Figures 1 to 7.
- a movement of the drive piston 10 in Figures 1 to 7 to the right is limited by a housing-fixed piston stop 16.
- the piston stop 16 By the piston stop 16, the top dead center of the driving piston 10 is defined.
- the piston stop 16 may be combined with a magnetic device 17.
- the magnetic device 17 serves, for example, to hold the driving piston 10 with a predetermined holding force in its initial position shown in Figure 1.
- a movement of the driving piston 10 to the left is limited by stop and / or damping elements 28, 29.
- the stop and / or damping elements 28 represent a buffer 1 10.
- the piston head 12 comprises a first piston surface 21, which faces the main combustion chamber 6.
- the prechamber cylinder 24 is part of the housing 3 of the setting device 1.
- the prechamber 25 constitutes a pre-combustion chamber, which is assigned an ignition device 26 and an inlet device 27 are.
- the stop and / or damping elements 28, 29 are arranged in the antechamber 25.
- a fuel gas-air mixture is supplied, which is ignited by means of the ignition device 26 in the pre-chamber 25.
- the pre-chamber cylinder 24 comprises passage openings 31, 32, which allow, for example, the exit of exhaust gases from the pre-chamber 25.
- the passage openings 31, 32 can be closed by a control device 30 as needed.
- the control device 30 comprises a control sleeve 34, the passage openings 37, 38 has. If the passage openings 37, 38 of the control sleeve 34 are brought into coincidence with the passage openings 31, 32, then the passage openings 31, 32, as can be seen in FIG. 6, are opened. In the figures 1 to 5 and 7, the passage openings 31, 32 are closed by the control sleeve 34.
- the control sleeve 34 has substantially the shape of a straight circular cylinder jacket and is shown in detail in Figure 1 1.
- overflow openings 41, 42 are provided between the antechamber 25 and the main combustion chamber 6 overflow openings 41, 42 are provided.
- the overflow openings 41, 42 are each assigned a valve device 43, 44.
- the valve devices 43, 44 are, for example, valve flaps which allow passage of a ignited air-fuel mixture from the prechamber 25 into the main combustion chamber 6.
- the control device 30 comprises a control pressure surface 45, which is connected in terms of pressure with the main combustion chamber 6.
- the control pressure surface 45 is designed as an annular surface 46, which faces radially outside of the prechamber cylinder 24 of the main combustion chamber 6.
- the control pressure surface 45 is mechanically coupled to the control sleeve 34 via a coupling element 48.
- the coupling element 48 is designed as a slide 50, which in the FIGS. 1 to 7 is guided back and forth on the antechamber cylinder 24 in the horizontal direction.
- end 51 of the slider 50 designed as an annular surface 46 control pressure surface 45 is provided.
- control sleeve 34 is attached.
- the control device 30 further comprises spring devices 54, 55, which are designed, for example, as helical compression springs.
- the left ends of the spring devices 54, 55 in FIGS. 1 to 7 are each assigned a housing-fixed stop 56, 57.
- the housing-fixed stops 56, 57 are provided on the prechamber cylinder 24.
- the spring devices 54, 55 are clamped between the housing-fixed stops 56, 57 and the right end 51 of the slider 50 with the control pressure surface 45.
- the slider 50 via the spring means 54, 55 supported on the housing-fixed stops 56, 57.
- the bolt setting tool 1 is shown in a non-pressed state.
- Not pressed state means that the setting end 14 of the driving piston 10 is not acted upon by a bolt or a fastener with a compressive force which is to be driven into a substrate.
- pressing the bolt gun 1 is pressed with the setting end 14 against the ground.
- the main combustion chamber 6 is bounded by a combustion chamber sleeve 84 which is displaceable in the axial direction limited to allow flushing of the main combustion chamber 6.
- a fan 80 is arranged in the main combustion chamber 6.
- the position of the combustion chamber sleeve 84 is such that the fan 80 generates an air flow 81, 82 indicated by arrows from the rear of the device, that is to say the right side in FIG. 2, through the main combustion chamber 6 into the environment.
- the air flow 81, 82 exhaust gases are transported out of the main combustion chamber 6 after a setting process.
- the air flow 81, 82 ensures cooling of the main combustion chamber 6.
- the bolt setting device 1 is shown in the pressed state.
- the tool tip of the bolt setting device 1 is pressed against a substrate.
- the combustion chamber sleeve 84 to the rear so in Figure 4 to the right, moved, as indicated in Figure 4 by an arrow 83.
- the main combustion chamber 6 is closed from the environment.
- fuel gas is injected via the inlet device 27 into the prechamber 25 and via the inlet device 8 into the main combustion chamber 6.
- the fan 80 rotates in the main combustion chamber 6.
- the ignition of the gas mixture is introduced through the ignition device 26 associated with the pre-chamber 25 in the vicinity of the buffer 1 10.
- a flame front spreads, which migrates from the side of the buffer 1 10 in the direction of the main combustion chamber 6, ie in Figure 4 to the right.
- the propagating flame front pushes unburned air / fuel mixture with a high pressure before him into the main combustion chamber.
- the valve means 43, 44 are designed for example as check valves, which the overflow openings 41, 42, which are also referred to as Kochzündötechnisch, Release during spreading of the laminar flame front.
- the flame can over-ignite via the check valves in the main combustion chamber 6, whereby the main chamber combustion is introduced into the main combustion chamber 6.
- the main chamber ignition in the main combustion chamber 6 is indicated by a symbol 86.
- the prechamber pressure escaping from the prechamber 25 via the opened vent connections 108, 109 is indicated by arrows 91 to 94 in FIG.
- the relief connections 108, 109 are also referred to as exhaust ports. Via the discharge connections or exhaust openings 108, 109, the pre-chamber pressure at the main chamber ignition 86 can escape.
- the driving piston 10 sets in the main chamber ignition 86 at high speed in motion and executes a settlement.
- the bolt setting device 1 is shown in a thermal return of the drive piston 10 in longitudinal section. After the driving piston 10 reached the lower or front piston turning point on the buffer 110, a main chamber residual pressure was blown off via the relief link 109. This has the consequence that the main combustion chamber pressure in the main combustion chamber 6 drops to ambient pressure and the control sleeve 34 pressure-controlled closes the exhaust ports or discharge connections 108, 109 again. By a cooling of the bolt setting device 1 after setting arises in the main combustion chamber 6, a negative pressure. This negative pressure in the main combustion chamber 6 causes the driving piston 10 is sucked back into its original position or sucked back.
- the Vorscheinlass 140 is advantageously associated with a one-way check valve.
- the check valve includes a relatively large leaflet which, while allowing fresh air to be drawn into the prechamber 25, but in the reverse direction prevents undesirable leakage of pressurized fuel and air mixture from the prechamber 25 into the environment.
- control device 30 is shown alone in different views.
- the control device 30 comprises the control sleeve 34, which is connected via the coupling element 48 with a coupling sleeve 100.
- a coupling sleeve 100 At a free end of the coupling sleeve 100, so the right in Figure 9 end of the coupling sleeve 100, designed as an annular surface 46 control pressure surface 45 is provided.
- the coupling sleeve 100 is fixedly connected to a connecting flange 105 via slide rods 101, 102, 103, which partially represent the slider 50.
- the connecting flange 105 connects the control sleeve 34 with the slide rods 101 to 103.
- the slide rods 101 to 103 are connected to the coupling sleeve 100 via a connecting flange 98.
- Each slide rod 101 to 103 is associated with a spring device 54, 55 designed as a compression spring.
- the spring devices 54, 55 are clamped in the installed state of the control device 30 between the connecting flange 98 and the housing-fixed stops 56, 57 on the prechamber cylinder 24.
- the control sleeve 34 serves to the passage openings 31, 32; 1 17, 1 18 in the antechamber cylinder 24 release dependent on demand, as indicated in Figure 6 by the arrows 91 to 94.
- the control sleeve 34, the passage openings 37, 38; 1 17, 1 18 on which, to open the vent connections 108, 109 with the passage openings 31, 32; 1 1 1, 1 12 are brought into the pre-chamber cylinder 24 to cover.
- the check valve device 120 comprises valve elements 121 to 123, which are connected to one another by a connecting ring body 124.
- Each of the valve elements 121 to 123 comprises two closing elements 127, 128, the passage openings 37; 1 18 of the two discharge connections 108; 109 are assigned.
- valve elements 121 to 123 with the closing elements 127, 128 are integrally formed from spring steel.
- the production of the valve elements 121 to 123 with the closing elements 127, 128 takes place, for example, by laser beam cutting.
- the connecting ring body 124 may also be made by laser cutting from a spring steel material.
- the system behavior or the total energy of the setting device 1 is not constant, in particular due to environmental influences. In a regulation of the amount of gas flowing over between the antechamber 25 and the main combustion chamber 6, only a relative value between them is tapped, which is established due to the prevailing conditions prior to combustion. However, since the set energy is determined by the differential pressure between the main combustion chamber and the ambient pressure, it may, as found in experiments and investigations carried out in the present invention, come to non-constant energy outputs of the setting device 1.
- the invention provides a setting device and method or a system that allows a user of the setting device 1, a constant adjustment of energy. This advantageously ensures that the setting tool 1 delivers a constant predefined set energy even under different environmental conditions.
- a rectangle 161 indicates a valve device which is assigned to the pre-chamber 25.
- the valve device 161 is at the left end in FIG Antechamber cylinder 24 attached. In this case, the valve device 161 is arranged radially outside of the piston rod 1 1 of the drive piston.
- the valve device 161 is connected in terms of control with an electronic control, which is indicated by a rectangle 162.
- sensors are indicated, which are connected in terms of control with the electronic control 162.
- the sensor 163 is associated with the antechamber 25.
- the sensor 164 is associated with the main combustion chamber 6.
- the main combustion chamber 6 is associated with a valve device 168, which is also connected to the electronic control 162 in terms of control.
- the two valve devices 161 and 168 are designed as pressure relief valves.
- the pressure limiting valves 161, 168 are controlled electronically via the electronic control 162.
- the sensors 163, 164 environmental influences can be detected.
- the sensors 163, 164 are designed, for example, as temperature sensors or as pressure sensors.
- the electronic control 162, the pressure limiting valves 161, 168 are adjusted according to environmental influences during operation of the setting device 1.
- the pressure limiting valve 161 associated with the pre-chamber 25 is regulated in such a way that a precharge pressure of 0.7 bar is achieved.
- the pressure relief valve 161 is driven accordingly to allow a higher precharge pressure, since at high temperatures due to the air density less gas in the setting tool 1 is available for combustion.
- the sensors 163, 164 may also be designed as pressure sensors, which measure the maximum pressures in the antechamber 25 or in the main combustion chamber 6.
- the maximum pressure in this context is the maximum pressure occurring in the corresponding chamber.
- the electronic control 162 the maximum pressure is evaluated after a successful setting. From this one obtains information about the energy that was available for setting. Before subsequent setting, one of the pressure relief valves 161, 168 can then be regulated so that the device energy defined by the electronic control 162 is available. Alternatively, both pressure relief valves 161, 168 can be regulated accordingly.
- a rectangle 165 a user interface is indicated, which is connected in terms of control with the electronic control 162.
- the user interface 165 advantageously enables the user of the setting device 1 to set the energy of the setting device 1 electronically. For this purpose, the information user interface 165 of the electronic control 162 is transferred. At least one of the pressure limiting valves 161, 168 is then set via the electronic control 162.
- the prechamber 25 is assigned a valve device indicated by a rectangle 171.
- the main combustion chamber 6 is associated with a likewise indicated as a rectangle valve means 172.
- By actuating symbols on the valve devices 171, 172 it is indicated that the valve devices can be manually adjusted by the user or user.
- the adjustment or adjustment of the valve devices 171, 172 takes place for example via adjusting wheels or a common setting wheel, via which both valve devices 171, 172 can be adjusted together.
- the two valve devices 171, 172 are designed as pressure relief valves.
- valve devices 168, 172 assigned in FIGS. 12 and 13 of the main combustion chamber 6 can also be omitted.
- the effect according to the invention also occurs when only the antechamber 25, the valve device 161; 171 is assigned.
- the maximum supercharging pressure can be varied during a pressurization phase.
- a fuel-air mixture is burned with a laminar flame front in the pre-chamber 25.
- Via the optional valve device 168; 172 can be limited during a Haupthuntverbrennung the maximum pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15201897.4A EP3184254A1 (de) | 2015-12-22 | 2015-12-22 | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
PCT/EP2016/081910 WO2017108782A1 (de) | 2015-12-22 | 2016-12-20 | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3393714A1 true EP3393714A1 (de) | 2018-10-31 |
EP3393714B1 EP3393714B1 (de) | 2022-02-02 |
Family
ID=54936911
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15201897.4A Withdrawn EP3184254A1 (de) | 2015-12-22 | 2015-12-22 | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
EP16819068.4A Active EP3393714B1 (de) | 2015-12-22 | 2016-12-20 | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15201897.4A Withdrawn EP3184254A1 (de) | 2015-12-22 | 2015-12-22 | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
Country Status (4)
Country | Link |
---|---|
US (1) | US10926390B2 (de) |
EP (2) | EP3184254A1 (de) |
TW (1) | TWI644764B (de) |
WO (1) | WO2017108782A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3184255A1 (de) | 2015-12-22 | 2017-06-28 | HILTI Aktiengesellschaft | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
EP3184253A1 (de) | 2015-12-22 | 2017-06-28 | HILTI Aktiengesellschaft | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
CN113276065A (zh) * | 2021-05-14 | 2021-08-20 | 四川轻化工大学 | 激光点火式固钉器 |
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DE1032035B (de) | 1956-07-24 | 1958-06-12 | Heinrich Christiansen | Spaltloser Ring und Verfahren zu seiner Herstellung |
US4913331A (en) | 1988-10-21 | 1990-04-03 | Hitachi Koki Company, Ltd. | Internal-combustion piston driving apparatus having a decompression channel |
DE4010517B4 (de) | 1990-04-02 | 2004-04-08 | Hilti Ag | Gasbetriebenes Arbeitsgerät |
DE4243617B4 (de) | 1992-12-22 | 2005-04-14 | Hilti Ag | Tragbares, brennkraftbetriebenes Arbeitsgerät, insbesondere Setzgerät |
DE10232035B4 (de) | 2002-07-16 | 2021-10-14 | Hilti Aktiengesellschaft | Brennkraftbetriebenes Setzgerät |
US6755159B1 (en) | 2003-01-20 | 2004-06-29 | Illinois Tool Works Inc. | Valve mechanisms for elongated combustion chambers |
US6912988B2 (en) * | 2003-01-24 | 2005-07-05 | Joseph S. Adams | Multiple-front combustion chamber system with a fuel/air management system |
DE10327191B3 (de) | 2003-06-17 | 2004-12-16 | Hilti Ag | Setzgerät |
JP4788228B2 (ja) * | 2005-08-08 | 2011-10-05 | マックス株式会社 | ガス燃焼式打込み工具における燃焼室保持機構 |
NZ575874A (en) * | 2006-10-16 | 2012-11-30 | Illinois Tool Works | A combustion nailer with a control system to control the time between combustion events |
DE102008000909A1 (de) | 2008-04-01 | 2009-10-08 | Hilti Aktiengesellschaft | Brennkraftbetriebenes Setzgerät |
US8336749B2 (en) * | 2009-03-31 | 2012-12-25 | Illinois Tool Works Inc. | Single switched dual firing condition combustion nailer |
DE102009041824A1 (de) * | 2009-09-18 | 2011-03-24 | Hilti Aktiengesellschaft | Vorrichtung zur Übertragung von Energie auf ein Befestigungselement |
CN202926462U (zh) * | 2012-10-29 | 2013-05-08 | 比亚迪股份有限公司 | 一种内燃机 |
EP2826601A1 (de) | 2013-07-16 | 2015-01-21 | HILTI Aktiengesellschaft | Steuerungsverfahren und Handwerkzeugmaschine |
EP3184255A1 (de) | 2015-12-22 | 2017-06-28 | HILTI Aktiengesellschaft | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
EP3184253A1 (de) | 2015-12-22 | 2017-06-28 | HILTI Aktiengesellschaft | Brennkraftbetriebenes setzgerät und verfahren zum betreiben eines derartigen setzgeräts |
-
2015
- 2015-12-22 EP EP15201897.4A patent/EP3184254A1/de not_active Withdrawn
-
2016
- 2016-11-14 TW TW105137079A patent/TWI644764B/zh active
- 2016-12-20 WO PCT/EP2016/081910 patent/WO2017108782A1/de active Application Filing
- 2016-12-20 US US16/063,772 patent/US10926390B2/en active Active
- 2016-12-20 EP EP16819068.4A patent/EP3393714B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
TW201722642A (zh) | 2017-07-01 |
EP3184254A1 (de) | 2017-06-28 |
US20200269405A1 (en) | 2020-08-27 |
TWI644764B (zh) | 2018-12-21 |
EP3393714B1 (de) | 2022-02-02 |
WO2017108782A1 (de) | 2017-06-29 |
US10926390B2 (en) | 2021-02-23 |
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