EP1093886B1 - Dispositif d'obtention d'une flamme laminaire - Google Patents

Dispositif d'obtention d'une flamme laminaire Download PDF

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Publication number
EP1093886B1
EP1093886B1 EP00810883A EP00810883A EP1093886B1 EP 1093886 B1 EP1093886 B1 EP 1093886B1 EP 00810883 A EP00810883 A EP 00810883A EP 00810883 A EP00810883 A EP 00810883A EP 1093886 B1 EP1093886 B1 EP 1093886B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
wall
cage
partition plate
openings
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.)
Expired - Lifetime
Application number
EP00810883A
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German (de)
English (en)
Other versions
EP1093886A3 (fr
EP1093886A2 (fr
Inventor
Joachim Thieleke
Iwan Wolf
Kaveh Towfighi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP1093886A2 publication Critical patent/EP1093886A2/fr
Publication of EP1093886A3 publication Critical patent/EP1093886A3/fr
Application granted granted Critical
Publication of EP1093886B1 publication Critical patent/EP1093886B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a device for producing a laminar flame front according to the preamble of patent claim 1.
  • Such a device is already out of the US-A-4332224 known.
  • Such a device may e.g.
  • the device includes two combustion chamber walls lying parallel to one another and an ignition device arranged between the combustion chamber walls and, for example, in its center for igniting a combustible gas mixture located between the combustion chamber walls, such as an air-fuel gas mixture, an oxygen-fuel gas mixture or any other suitable fuel gas mixture.
  • the two combustion chamber walls delimit an antechamber containing the ignition device, wherein one of the combustion chamber walls has passage openings, via which the prechamber communicates with at least one further partial combustion chamber of a combustion chamber comprising all partial combustion chambers. If only one additional partial combustion chamber is present, this is the case here around a main chamber adjacent to a piston of the setting device.
  • all partial combustion chambers is an air-fuel gas mixture, possibly in different mixing ratios.
  • the combustion of the air-fuel gas mixture is started in the antechamber and a flame front begins to spread at a relatively slow speed starting from the center of the pre-chamber on the volume of the pre-chamber and pushes unburned air-fuel gas mixture in front, which passes through the passage openings in the next partial combustion chamber and generates turbulence and precompression here.
  • the flames When the flame front reaches the passage openings to the next partial combustion chamber or main chamber, the flames, due to the relatively small cross-sectional areas of the passage openings, accelerate as flame jets into the further partial combustion chamber or main chamber and generate further turbulence here.
  • the mixed turbulent air-fuel gas mixture in the main chamber is then ignited over the entire surface of the flame jets. It burns at a high speed, resulting in a great increase in the efficiency of combustion, since the cooling losses remain small.
  • the invention has the object of providing a device of the type mentioned in such a way that it is more flexible.
  • a device according to the invention is characterized in that the approach engages behind the other combustion chamber wall through an existing opening in it.
  • the through holes present in the cage at the same angular intervals in the cage wall, so that it is ensured by as symmetrical spread of the flame front on the other side of the cage.
  • adjacent passage openings abut peripheral wall regions of the cage wall on the inside. hereby it is ensured that in the direction parallel to the combustion chamber walls, the flame front formed in the ignition point never encounters a cage wall, which is perpendicular to the direction of propagation of the flame front. This avoids reducing the speed of the flame front and causing unnecessary turbulence.
  • the Fig. 1 shows an axial section through a combustion-powered fastener setting device in the region of its combustion chamber.
  • a guide cylinder 5 In the center of the bottom wall 3 there is an opening 4, to which a guide cylinder 5 is connected, which has a cylinder wall 6 and a bottom wall 7.
  • a piston 8 Within the guide cylinder 5, a piston 8 is slidably mounted, in the cylinder longitudinal direction of the guide cylinder 5.
  • the piston 8 consists of a piston plate 9, which faces the combustion chamber 1, as well as from a centrally connected to the piston plate 9 piston rod 10, through a Through hole 1 protrudes in the bottom wall 7 to a part of the guide cylinder 10.
  • Fig. 1 is the piston 8 in its returned rest position in which the setting tool is not in operation.
  • the combustion chamber 1 facing side of the piston plate 9 closes more or less with the inside of the bottom wall 3, and the piston rod 10 projects beyond the bottom wall 7 a little to the outside.
  • Sealing rings 12, 13 on the outer circumference of the piston plate 9 and on the inner circumference of the cylinder wall 6 may be provided to seal the spaces on both sides of the piston plate 9 against each other.
  • a cylinder plate 14 which may be referred to as a movable combustion chamber wall.
  • the combustion chamber wall 14 is displaceable in the longitudinal direction of the combustion chamber 1 and has at its outer peripheral edge an annular seal 15 in order to seal the spaces in front of and behind the combustion chamber wall 14. Furthermore, the combustion chamber wall 14 has a central passage opening 16 with an annular peripheral seal 17.
  • the partition plate 18 is also circular and has an outer diameter corresponding to the inner diameter of the combustion chamber 1.
  • the partition plate 18 is connected to a cylindrical projection 19, which projects through the central through-opening 16 of the combustion chamber wall 14 and whose length corresponds to a multiple of the thickness of the combustion chamber wall 14.
  • the peripheral seal 17 nestles close to the outer peripheral surface of the cylindrical projection 19.
  • the cylindrical projection 19 has an annular projection 20 projecting beyond its circumference. The outer diameter of this annular projection 20 is greater than the inner diameter of the passage opening 16.
  • combustion chamber wall 14 and the partition plate 18 are at a predetermined distance from each other, which is determined by the position of the annular projection 20.
  • the combustion chamber wall 14 and the partition plate 18 form a so-called prechamber.
  • This is a partial combustion chamber of the combustion chamber 1.
  • This prechamber bears the reference numeral 21 and is in Fig. 2 to recognize. If the combustion chamber wall 14 is raised even further, combustion chamber wall 14 and partition plate 18 move parallel to one another, so that a further partial combustion chamber, which is referred to as the main chamber, spans between partition plate 18 and bottom wall 3 or piston plate 9.
  • This partial combustion chamber or main chamber bears the reference numeral 22 and is also in Fig. 2 to recognize.
  • the free ends of the drive rods 23 are connected to each other via a drive ring 28 which is concentric with the cylinder axis of the combustion chamber 1 and the guide cylinder 5 engages.
  • the drive ring 28 may be screwed by screws 29 to the drive rods 23, such that the screws 29 pass through the drive ring 28 and are screwed into the free end faces of the drive rods 23.
  • a compression spring 30, which is supported on the outside of the bottom wall 3 and presses against the drive ring 28. The compression spring 30 is therefore anxious to always press the combustion chamber wall 14 in the direction of the bottom wall 3.
  • valve opening 31 In the area of the annular bottom wall 3 there is furthermore a valve opening 31, into which a valve tappet 32 can be inserted in a sealing manner.
  • this valve tappet 32 lies outside the combustion chamber 1 or below the bottom wall 3 and is held there by a projection 33 fastened to the guide cylinder 5.
  • the projection 33 has a passage opening 34 through which passes through a fixed to the underside of the valve stem 32 cylindrical projection 35.
  • At the free end of the cylindrical projection 35 is located at this an annular projection 36.
  • a compression spring 37 Between the annular projection 36 and the projection 33 is a compression spring 37 which tends to pull the valve stem 32 via the annular projection 36 toward the neck 33 and thus opening the valve opening 31.
  • the cylindrical projection 35 is located in the displacement track of the drive ring 28 and is acted upon by the drive ring 28 when it is displaced in the direction of the bottom wall 3. If the drive ring 28 has reached a certain axial position, the valve tappet 32 is entrained by it, and the valve opening 31 is closed.
  • the partition plate 18 has circumferentially a plurality of through holes 38, each having the same distance from the cylinder axis of the combustion chamber 1. Further, at the lower end of the guide cylinder 5 are exhaust ports 39 for discharging air from the guide cylinder 5 when the piston 8 is moved toward the bottom wall 7. At the lower end of the guide cylinder 5 is also a damping device 40 for damping the movement of the piston 8. If the piston 8 passes over the outlet openings 39, exhaust gas can escape from the outlet openings 39.
  • radial passage openings 41 and 42 In the cylinder wall 2 of the combustion chamber 1 there are two radial passage openings 41 and 42, which are spaced apart in the axial direction. In these passage openings 41 and 42 project from the outside discharge channels 43 and 44 of not shown dosing valves, which are located in a dosing 45. Liquid fuel gas is supplied from a bottle 46 to the existing dosing in the metering 45 and these give the metered amount of liquid then through the output channels 43 and 44, when the dosing head 45 is pressed in the direction of the cylinder wall 2 and thus the output channels 43, 44 driven inward and open the respective metering valves.
  • the radial passage openings 41 and 42 taper in the direction of the combustion chamber 1, so that stops for the output channels 43 and 44 are obtained.
  • the Fig. 2 shows the setting device in the clamped state of the partial combustion chambers, ie in the clamped state of the prechamber 21 and the main chamber 22.
  • the displacement positions of the combustion chamber wall 14 and partition plate 18 are adjusted by the drive ring 28 strikes against the annular projection 36 and the valve 31, 32 closes.
  • the peripheral surfaces of valve opening 31 and valve tappet 32 taper and taper in the direction of the combustion chamber 1, so that there is a blockage.
  • the distance of the partition plate 18 from the combustion chamber wall 14 is determined by the distance of the annular projection 20 from the partition plate 18, as already mentioned. In this position, the combustion chamber wall 14 and the partition plate 18 are the radial passage openings 41 and 42 of the pre-chamber 21 and der Hauptschschschschschschschsch 22 pose.
  • the connected to the partition plate 18 central Approach 19 is formed in its region facing the partition plate 18 as Zündklafig 51 for receiving an igniter 52 in the interior.
  • This ignition device 52 is used to generate an electric spark for the purpose of igniting an air-fuel gas mixture in the pre-chamber 21.
  • the ignition device 52 is located in the interior or in a central region of the Zündklafigs 51, the peripherally provided with through holes 53 is, through which a laminar flame front from the Zündlafig 51 can escape into the pre-chamber 21.
  • Fig. 1 the setting device is at rest.
  • the combustion chamber 1 is completely collapsed, the partition plate 18 rests on the bottom wall 3 and the combustion chamber wall 14 on the partition plate 18.
  • the piston 8 is in its retracted position of rest, so that virtually no space between it and the partition plate 18 is present if one neglects a slight gap between them.
  • the superimposition of the plates 18 and 14 comes about in that the compression spring 30, the drive ring 28 presses away from the bottom wall 3 and the drive ring 28 via the drive rod 23, the combustion chamber wall 14 entrains.
  • the drive ring 28 is also at a distance from the annular projection 36 of the valve stem 32, so that the valve stem 32 is led out by the action of the compression spring 37 from the valve opening 31.
  • the valve opening 31 is thus open.
  • the system of dosing head 45 and bottle 46 is pivoted away from the combustion chamber 1, so that the discharge channels 43, 44 relieved and thus the respective metering valves are closed.
  • the pressing force acts on the drive ring 28 via a mechanism, not shown, and displaces it in the direction of the bottom wall 3, specifically with the pressing of the setting device against said object.
  • the combustion chamber wall 14 lifts off from the separating plate 18 until the combustion chamber wall 14 strikes against the annular projection 20 and carries along it the separating plate 18.
  • the antechamber 21 is now clamped, but still not properly positioned within the combustion chamber 1.
  • air can already be sucked into the prechamber 21, via the open valve opening 31 and one or more of the through openings 38, provided that both openings coincide.
  • the Fig. 2 shows the positions of the combustion chamber wall 14 and partition plate 18 at fully clamped pre-chamber 21 and main chamber 22, now the combustion chamber wall 14 and partition plate 18 can be locked in position. This happens by pressing the trigger or trigger of the setting device. If the trigger is actuated, the locking of combustion chamber wall 14 and partition plate 18 takes place, for example by locking drive ring 28. Shortly thereafter, a spark is generated by electric ignition device 52 within ignition cage 51.
  • the mixture of air and fuel gas preset in each of the chambers 21 and 22 initially begins to burn laminarly in the pre-chamber 21, the flame front propagating at a relatively slow speed radially in the direction of the through-openings 38.
  • the piston 8 is acted upon and moves at high speed in the direction of the bottom wall 7, at the same time the air from the guide cylinder 5 is driven through the outlet openings 39 to the outside.
  • the piston plate 9 passes over the outlet openings 39 for a short time so that exhaust gas can escape through them.
  • a fastener is now set.
  • the piston 8 After settling or after the combustion of the air-fuel gas mixture, the piston 8 by thermal feedback in its initial position according to Fig. 2 brought back because a negative pressure behind the piston is generated by cooling the remaining in the combustion chamber 1 and in the guide cylinder 5 flue gas. Until the piston is in its initial position Fig. 2 has reached, the combustion chamber 1 must remain sealed.
  • the Fig. 3 shows in principle the same arrangement as the Fig. 1 and 2 , so that is dispensed with a repeated description. Unlike the Fig. 1 and 2 Here is the system of dosing 45a and bottle 46 but not tilted, but it is only the system of metering valve 45b and bottle 46 in the longitudinal direction of the combustion chamber 1 displaceable, including a connected to the drive ring 28 driver 46a the bottle 46 in the last region of the displacement engages under the clamping of the combustion chamber 1.
  • the metering head 45a is fixedly connected to the combustion chamber 1 and, starting from a feed channel 45c, has two discharge channels 43, 44 which are in communication with the radial through openings 41 and 42, respectively.
  • Dosing valve 45b and bottle 46 are firmly together.
  • the metering valve 45b is metered with liquid gas.
  • the driver 46a raises the bottle 46 and with her the metering valve 45b and pushes the metering valve 45b against the metering 45a, so that the metering valve 45b opens and the metered amount of LPG from the radial passage openings 41, 42 is sprayed in the form of a mist.
  • the radial passage openings 41, 42 have different outlet cross sections or be provided with corresponding additional nozzles.
  • Fig. 4 essentially corresponds to the embodiment after the Fig. 1 and 2 and therefore need not be explained again in detail.
  • the valve stem 32 is constantly pressed by a compression spring 37 in the valve opening 31 and seeks to close it.
  • the compression spring 37 is seated on the cylindrical projection 35 on the underside of the valve stem 32 and abuts on this underside and on the projection 33, which is attached to the guide cylinder 5.
  • the passage opening 34 takes on the cylindrical projection 35.
  • the valve 31/32 is therefore a pure vent valve.
  • a vent valve is designated by the reference numeral 54 and is located in the combustion chamber wall 14. If the Vorsch 21 and the main chamber 22 are spanned by the movement of the Brennschwyer 14 and the partition plate 18, the vent valve 31/32 remains closed and the vent valve 54 opens due the resulting in the chambers 21 and 22 negative pressure, so that air can enter via the vent valve 54 into the chambers 21 and 22. Otherwise, the previously mentioned operations are aborted.
  • the vent valve 54 is a check valve, which must be kept closed during the piston return in its initial position by a suitable mechanism. This is achieved, for example, in that an upwardly pointing pin 55 sealingly retracts on the combustion chamber wall 14 into a central opening 56, which is located in an upper cover wall 57 of the combustion chamber 1. As a result, the check valve 54 is closed from the outside by the cover wall 57 when in the interior of the combustion chamber 1, a negative pressure for returning the piston 8 to its initial position prevails.
  • the check valve 54 remains closed, but also the vent valve 31/32, since now the drive ring 28 strikes from below against the cylindrical projection 35 and prevents the valve stem 32 from the valve opening 31st can move out. Only after unlocking the drive ring 28, this can move away from the bottom wall 3, wherein the plates 14 and 18 are taken and the exhaust gases pass through the now opening vent valve 31/32 to the outside.
  • the Fig. 5 to 8 show the structure of the Zünd lambfigs 51 in detail.
  • the ignition cage 51 comes to rest in the clamped state of the pre-chamber 21 between the combustion chamber wall 14 and the partition plate 18, as the Fig. 5 recognize.
  • the Zündkarfig 51 is cylindrical here and thus has inside a cavity in which the ignition device 52 is to generate an electric spark.
  • the cylinder wall of the Zündhanfigs 51 has in the present case, for example, four through holes 53 which are elongated and whose longitudinal direction is perpendicular to the plates 14, 18.
  • the passage openings 53 at least in the middle region on such a width that the passage openings 53 delimiting wall surfaces 53a adjacent through openings 53 in the interior of the Zündkarfigs 51 at a right angle to each other.
  • a flame front propagating from the center of the ignition cage 51 parallel to the plates 14, 18 thus can never strike an inner wall surface of the ignition cage which is perpendicular to the direction of propagation of the flame front, which has the advantage that this flame front does not enter the Center can be reflected back.
  • This also leads to an improved laminar flow outside the ignition cage, which builds up again shortly after leaving the ignition cage 51.
  • the relationships are the Fig. 6 to 8 refer to.
  • the Fig. 6 to 8 refer to.
  • FIG 8 shows a plan view of the partition plate 18 with parallel to the plate plane cut Zündhimfig 51.
  • the flame front F is at the latest again laminar when it reaches the through holes 38 in the partition plate 18.
  • an electric igniter 52 may, for. B. come a spark plug used.
  • FIGS. 9 and 10 show a further embodiment of the setting device according to the invention.
  • a partition plate 18 is used, which has two rows of holes.
  • the partition plate 18 is a circular plate with the two rows of holes concentric with the center of this plate.
  • the inner row of holes 58 are relatively small diameter through holes 38.
  • the second row of holes 59 is one with return openings 60, whose diameter is slightly larger than that of the through holes 38. Otherwise, the conditions are the same as in the embodiments of the Fig. 1 to 4 ,
  • the two rows of holes 58 and 59 lead to a faster ignition of the present in the main chamber 22 air-fuel gas mixture and to an improved overall efficiency of the combustion process.
  • a laminar flame front F is formed, which propagates relatively slowly to the peripheral edge of the prechamber 21.
  • This flame front reaches the first row of holes 58 after a short time and ignites the main chamber 22.
  • the air-fuel gas mixture in the lateral areas of the pre-chamber 21 now also burns turbulent and at the same time as that in the main chamber 22. It is thus ensured that also the part of the combustion in the lateral regions of the prechamber 21 contributes to the piston work.
  • the diameters of the first and second rows of holes 58 and 59 are respectively 55% and 85% of the diameter of the separator plate 18.
  • the through-holes 38 have a diameter of 2.6% of the diameter of the separator plate 18, while the return orifices 60 have a Diameter of about 3.8% of the diameter of the partition plate 18 have.
  • the Fig. 11 shows the structure of the combustion chamber lock in the setting device with thermal piston return. Same elements as in the Fig. 1 to 4 bear the same reference numerals and will not be explained again.
  • a contact element 61 At a peripheral portion of the drive ring 28 is a contact element 61.
  • This contact elements 61 has a directed towards the front end of the setting device stop surface, which is tilted. The inclination is such that the otherwise flat surface is inclined at its radially outer side further towards the front end of the setting device than inside. Parallel to this surface is the contact element 61 and in its trajectory a blocking portion 62 of a blocking element 63 opposite.
  • the blocking element 63 is pivotable about a pivot axis 64 such that the blocking portion 62 by the action of a spring 65 from the movement path of the contact element 61 can be swung out.
  • the movement path of the contact element 61 runs parallel to the piston rod 10.
  • Fig. 11 the pre-chamber 21 and the main chamber 22 are fully clamped and filled with an air-fuel gas mixture.
  • the trigger or trigger of the setting device is actuated, the combustion chamber 1 is locked via the arm-shaped blocking element 63 and the combustion within the combustion chamber 1 is started.
  • the force acting in the negative pressure phase on the combustion chamber wall 14 of the combustion chamber 1 is transmitted via the drive rods 23 to the drive ring 28 and would like to move it in the direction of the arrow P.
  • the angle between the surface of the contact element 61 and the blocking portion 61 of the blocking arm 63 is designed so that the drive ring 28 is locked the more, the higher the force acting as a result of the negative pressure on the combustion chamber wall 14 and the drive rod 23.
  • the blocking portion 62 can be brought out of engagement with the contact element 61 by the return spring 65.
  • the compression springs 30 then ensure the collapse of the combustion chamber 1 and thus also for the opening in the Fig. 1 and 4 shown vent valves.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Claims (5)

  1. Dispositif pour produire un front laminaire de flammes, comprenant deux parois de chambre de combustion parallèles entre elles (14, 18) et un dispositif d'allumage (52) disposé entre les parois de chambre de combustion (14, 18) pour allumer un mélange gazeux combustible situé entre les parois de chambre de combustion (14, 18), entre les parois de chambre de combustion (14, 18) étant disposée une cage (51) pour recevoir le dispositif d'allumage (52), et la cage par ailleurs fermée (51) étant pourvue d'une pluralité d'ouvertures débouchantes (53) qui traversent la paroi périphérique de la cage (51), et la cage (51) faisant partie d'un appendice (19) qui est solidarisé à une (18) des parois de chambre de combustion, caractérisé en ce que l'appendice (19) passe derrière l'autre paroi de chambre de combustion (14) à travers une ouverture (16) ménagée dans celle-ci.
  2. Dispositif selon la revendication 1, caractérisé en ce que les ouvertures débouchantes (53) sont ménagées dans la paroi de la cage (51) avec des écarts angulaires égaux.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la cage (51) est conformée en cylindre creux dont l'axe longitudinal s'étend perpendiculairement aux parois de chambre de combustion (14, 18).
  4. Dispositif selon la revendication 1, 2 ou 3, caractérisé en ce que la paroi de chambre de combustion (18) à laquelle la cage (51) est solidarisée est pourvue d'une pluralité d'ouvertures débouchantes (38) qui sont disposées à distance de la cage (51).
  5. Dispositif selon une des revendications 1 à 4, caractérisé en ce que les zones de paroi (53a) de la paroi de chambre qui entourent des ouvertures débouchantes voisines (53) se rencontrent à l'intérieur.
EP00810883A 1999-10-19 2000-09-26 Dispositif d'obtention d'une flamme laminaire Expired - Lifetime EP1093886B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19950351A DE19950351C2 (de) 1999-10-19 1999-10-19 Vorrichtung zur Erzeugung einer laminaren Flammfront, insbesondere für brennkraftbetriebene Setzgeräte zum Setzen von Befestigungselementen
DE19950351 1999-10-19

Publications (3)

Publication Number Publication Date
EP1093886A2 EP1093886A2 (fr) 2001-04-25
EP1093886A3 EP1093886A3 (fr) 2005-04-06
EP1093886B1 true EP1093886B1 (fr) 2008-04-23

Family

ID=7926169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810883A Expired - Lifetime EP1093886B1 (fr) 1999-10-19 2000-09-26 Dispositif d'obtention d'une flamme laminaire

Country Status (4)

Country Link
US (1) US6491015B1 (fr)
EP (1) EP1093886B1 (fr)
JP (1) JP4550254B2 (fr)
DE (2) DE19950351C2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6860243B2 (en) 2002-06-18 2005-03-01 Illinois Tool Works Inc. Combustion chamber system with obstacles for use within combustion-powered fastener-driving tools, and combustion-powered fastener-driving tools having combustion chamber system incorporated therein
FR2852546B1 (fr) * 2003-03-19 2006-08-11 Prospection & Inventions Procedes de reglage de la puissance d'un appareil a fonctionnement a gaz
US6964553B2 (en) * 2003-05-23 2005-11-15 Illinois Tool Works Inc. Port for a fan chamber
DE112005001776T5 (de) * 2004-07-20 2007-08-02 Powers Products Iii, Llc Setzwerkzeug mit Gasladung
WO2006026709A2 (fr) 2004-08-30 2006-03-09 Black & Decker Inc. Element de fixation par combustion
JP4586564B2 (ja) * 2005-02-18 2010-11-24 日立工機株式会社 燃焼式釘打機
US7591249B2 (en) * 2005-10-03 2009-09-22 Illinois Tool Works Inc. Actuation structure for internal fuel cell metering valve and associated combustion tool
JP4935978B2 (ja) * 2006-08-09 2012-05-23 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のバルブ装置
US8087394B2 (en) * 2007-07-25 2012-01-03 Illinois Tool Works Inc. Dual-level combustion chamber system, for fastener driving tool, having dual-level rotary valve mechanism incorporated therein
JP5240648B2 (ja) * 2008-03-12 2013-07-17 日立工機株式会社 燃焼式打込工具
DE102010062962A1 (de) * 2010-12-13 2012-06-14 Hilti Aktiengesellschaft Eintreibgerät
EP2886254A1 (fr) * 2013-12-20 2015-06-24 HILTI Aktiengesellschaft Appareil de travail
EP3189938B1 (fr) * 2015-03-10 2020-03-11 Illinois Tool Works Inc. Perfectionnements pour un outil de fixation à gaz
EP3199301A1 (fr) * 2016-02-01 2017-08-02 HILTI Aktiengesellschaft Chambre de combustion et appareil d'enfoncement
US10875165B2 (en) 2017-08-02 2020-12-29 Illinois Tool Works Inc. Fastener-driving tool with one or more combustion chambers and an exhaust gas recirculation system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1766740A (en) * 1929-10-08 1930-06-24 Bitchman Oscar Spark-plug mounting
US2884913A (en) * 1958-03-14 1959-05-05 Ralph M Heintz Internal combustion engine
DE2715943C2 (de) * 1977-04-09 1986-08-14 Robert Bosch Gmbh, 7000 Stuttgart Brennkraftmaschine mit wenigstens einem Hauptbrennraum und einer Zündkammer
US4773581A (en) * 1986-06-13 1988-09-27 Hitachi Koki Company, Ltd. Combustion gas powered tool
US4913331A (en) * 1988-10-21 1990-04-03 Hitachi Koki Company, Ltd. Internal-combustion piston driving apparatus having a decompression channel
DE4032201C2 (de) * 1990-10-11 1999-10-21 Hilti Ag Setzgerät für Befestigungselemente
DE4032202C2 (de) * 1990-10-11 1999-10-21 Hilti Ag Setzgerät für Befestigungselemente
US5263439A (en) * 1992-11-13 1993-11-23 Illinois Tool Works Inc. Fuel system for combustion-powered, fastener-driving tool
US5713313A (en) * 1997-02-07 1998-02-03 Illinois Tool Works Inc. Combustion powered tool with dual fans

Also Published As

Publication number Publication date
DE19950351C2 (de) 2002-06-13
JP2001191258A (ja) 2001-07-17
JP4550254B2 (ja) 2010-09-22
EP1093886A3 (fr) 2005-04-06
EP1093886A2 (fr) 2001-04-25
DE50015119D1 (de) 2008-06-05
DE19950351A1 (de) 2001-05-03
US6491015B1 (en) 2002-12-10

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