EP0076188B1 - Tête de coupe pour chalumeau en particulier pour oxy-coupage - Google Patents

Tête de coupe pour chalumeau en particulier pour oxy-coupage Download PDF

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Publication number
EP0076188B1
EP0076188B1 EP82401671A EP82401671A EP0076188B1 EP 0076188 B1 EP0076188 B1 EP 0076188B1 EP 82401671 A EP82401671 A EP 82401671A EP 82401671 A EP82401671 A EP 82401671A EP 0076188 B1 EP0076188 B1 EP 0076188B1
Authority
EP
European Patent Office
Prior art keywords
cutting
neck
recesses
piece
head
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
Application number
EP82401671A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0076188A1 (fr
Inventor
Christian Bleys
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.)
L SAUVAGEAU AND CIE
Original Assignee
L SAUVAGEAU AND CIE
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 L SAUVAGEAU AND CIE filed Critical L SAUVAGEAU AND CIE
Priority to AT82401671T priority Critical patent/ATE20276T1/de
Publication of EP0076188A1 publication Critical patent/EP0076188A1/fr
Application granted granted Critical
Publication of EP0076188B1 publication Critical patent/EP0076188B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/38—Torches, e.g. for brazing or heating
    • F23D14/42—Torches, e.g. for brazing or heating for cutting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • F23D14/48—Nozzles
    • F23D14/52—Nozzles for torches; for blow-pipes
    • F23D14/54—Nozzles for torches; for blow-pipes for cutting or welding metal

Definitions

  • the present invention relates to improvements made to existing heads for “pre-mix” torches, so that they can also function on “head mix” torches, and it is particularly intended to improve heads comprising a part. male or internal nozzle and a female part or external nozzle.
  • the gas mixture is made in the head itself and consequently the mixer injector system upstream of it is no longer necessary.
  • the mixing is done in the cutting head by a single injector, formed in the internal nozzle, which opens into a groove in which the fuel is brought by another hole. In the axis of the injector is a larger orifice which allows passage and serves as a mixer for the two gases.
  • the object of the present invention is a cutting head of a very simple design, in two parts (male part and female part), the machining of which is particularly simple and which can be used indifferently on a gas mixing torch in the cutting head or head with premixing of combustible and oxidizing gases, while also simplifying stock keeping, supply problems and use by creating a cutting head applicable equally to the two types of torches.
  • the invention relates to a cutting head as defined in claim 1.
  • Such a cutting head is of a particularly simple embodiment. It allows by simple means to produce the conduit both for cutting oxygen and for the oxygen mixture of fuel gas heater. Such a head is used indifferently in a torch for mixing in the head or for premixing. The installation of such a cutting head is particularly simple and does not require any special tools. The realization itself of such a head is very simple and is done according to the usual machining phases.
  • FIG 1 we see a cutting head according to the invention associated with the head holder of a torch "mixing in the head".
  • the head holder 1 of the torch is pierced with a pipe 2 for cutting oxygen, a pipe 3 for heating oxygen, and a pipe 4 for combustible gas.
  • These three conduits open into a chamber 5 into which an internal nozzle 6 and an external nozzle 7 can be introduced which collaborate to constitute the cutting head according to the invention.
  • nozzles will be described below, but it will be indicated immediately that the nozzle 6 is pierced with an axial bore 8 aligned with the duct 2 of the head holder 1 and whose upper end has a frustoconical shape 8a whose role will be explained below, and that a connector 9 screwed internally into the chamber 5 of the head holder 1 ensures the correct positioning and positioning of the external nozzle 7.
  • FIG 2 we see the cutting head according to the invention, which will be described below with reference to Figures 3 and 4, associated with the head holder 10 of a torch "premixing".
  • This head holder is pierced with a pipe 11 for cutting oxygen and a pipe 12 for the heating mixture.
  • the head holder 10 has at its lower part an axial projection 13 containing the end of the duct 11 and located in a chamber 14 at the top of which opens the duct 12, and into which the aforesaid nozzles 6 and 7 can be introduced; a connection 15 screwed externally to the head holder 10 ensures the correct positioning and positioning of the external nozzle 7.
  • the bore 8 of the nozzle 6 according to the invention is aligned with the conduit 11 for cutting oxygen, and its upper end 8a of frustoconical shape allows to receive the axial projection 13 of the head holder 10 in order to ensure the seal between the cutting oxygen and the heating mixture.
  • the external nozzle 7 (FIGS. 1 and 2) has at its upper end a flange 16 provided with a groove 16a to receive an O-ring ensuring sealing towards the outside, while the sealing between the conduits 2 and 4 or 11 and 12 is made by metal against metal contact, flat in the case of FIG. 1 and between a spherical surface and the cone 8a in the case of FIG. 2.
  • FIGS. 3 and 4 show the shape of the internal nozzle 6.
  • This nozzle comprises a flange 20, the lower part of which protrudes and which ensures on the one hand the seals between the gases as described above and on the other hand the longitudinal positioning of the internal nozzle in the external nozzle. It also includes a slight cylindrical projection 18 (FIG. 3) which ensures the centering of the nozzle 6 in the nozzle 7.
  • On the flange two opposite plates 19 produced by milling bite on the flange 20 and thus form recesses 21 a (FIGS. 1, 2 and 4).
  • FIGS. 7 to 11 a second embodiment of the invention is seen.
  • the parts corresponding to those of Figures 1 to 6 bear the same references followed by the letter A.
  • the male internal nozzle 6A has at its end in contact with the head holder 1 or 10 of the torch (not shown in FIGS. 7 and 9) a flange 20A whose diameter is the same as that of the flange 20 in FIGS. 1 to 4 and which is also pierced with two opposite holes 21A.
  • the nozzle 6A is also pierced centrally with a bore 8A identical to the bore 8 of FIGS. 1, 2 and 4 to 6, and the upper end of the bore 8A also has a frustoconical shape 8aA.
  • Below the flange 20A is another flange 18A whose role will be explained below.
  • the female external nozzle 7A has at its upper end a flange 16A provided with a groove 16aA intended to receive an O-ring (not shown) such as the seal 17 in FIGS. 1 and 2, and also has two recesses 24 at the upper end of which are formed passages 25 (FIGS. 7, 9 and 11) perpendicular to the recesses 24 and through which a communication can take place between the conduit 4 of FIG. 1 or the conduit 12 of FIG. 2 and the annular passage 22A which separates the nozzles 6A and 7A.
  • the aforementioned flange 18A allows a tight and definitive adjustment of the nozzles 6A and 7A, as well as the correct orientation of the passages 25 relative to the holes 21A both in the case of a “head mix” torch and in that of a '' pre-mix '' torch.
  • FIGS. 7 to 11 requires precise alignment of the passages 25 with the holes 21A for injecting the heating oxygen, which does not not allow its disassembly.
  • the invention is applicable to welding torches or drivers: it suffices to remove the axial bore 8 or 8A for the cutting oxygen located in the center of the internal nozzle 6 or 6A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Arc Welding In General (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Earth Drilling (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP82401671A 1981-09-18 1982-09-14 Tête de coupe pour chalumeau en particulier pour oxy-coupage Expired EP0076188B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401671T ATE20276T1 (de) 1981-09-18 1982-09-14 Schneidduese, insbesondere fuer schneidsauerstoffbrenner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8117641A FR2513355A1 (fr) 1981-09-18 1981-09-18 Tete de coupe pour chalumeaux, en particulier pour oxy-coupage
FR8117641 1981-09-18

Publications (2)

Publication Number Publication Date
EP0076188A1 EP0076188A1 (fr) 1983-04-06
EP0076188B1 true EP0076188B1 (fr) 1986-06-04

Family

ID=9262265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401671A Expired EP0076188B1 (fr) 1981-09-18 1982-09-14 Tête de coupe pour chalumeau en particulier pour oxy-coupage

Country Status (8)

Country Link
US (1) US4443003A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0076188B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS58117910A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE20276T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3271563D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES267930Y (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2513355A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
OA (1) OA07213A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2029522C (en) * 1990-11-14 1997-10-07 Claude Bissonnette Fluid cooled cutting torch adapted for operation with a premix and postmix nozzle
US5700421A (en) * 1992-11-25 1997-12-23 Bissonnette; Claude Cutting nozzle assembly for a postmixed oxy-fuel gas torch
US6277323B1 (en) 1992-11-25 2001-08-21 Oxy-Arc International Inc. Cutting nozzle assembly for a postmixed oxy-fuel gas torch
US5383650A (en) * 1994-02-04 1995-01-24 Bissonnette; Claude Gas flow control assembly for a gas-saving oxy/fuel cutting torch
US5688469A (en) * 1996-09-27 1997-11-18 The Lincoln Electric Company Gas mixer for cutting torches
US5882437A (en) * 1997-09-15 1999-03-16 Air Liquide Canada, Inc. Oxy-fuel cutting torch head seat insert and method of use
RU2169648C1 (ru) * 2000-10-16 2001-06-27 Научно-исследовательский институт энергетического машиностроения Московского государственного технического университета им. Н.Э. Баумана Горелка термогазоструйного резака
EP3730528A1 (de) 2019-04-24 2020-10-28 Covestro Deutschland AG Latent-reaktive klebstoffzubereitungen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE488777A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) *
US2198342A (en) * 1937-04-17 1940-04-23 Oxweld Acetylene Co Blowpipe
US3299939A (en) * 1965-10-21 1967-01-24 Daniel A Marra Metal cutting torch
US3389861A (en) * 1965-10-26 1968-06-25 Tanaka Seisakusho Kk Device for gas cutting utilizing a shield gas
DE2452004A1 (de) * 1974-11-02 1976-05-06 Ipu Ltd Duese zum schweissen, heizen, schneiden und/oder flaemmen
US4171124A (en) * 1978-07-12 1979-10-16 Caterpillar Tractor Co. Flame cutting tip and torch holder
FR2436645A1 (fr) * 1978-09-25 1980-04-18 Hampiaux Et Fils Ets Buse de chalumeau coupeur

Also Published As

Publication number Publication date
DE3271563D1 (en) 1986-07-10
FR2513355A1 (fr) 1983-03-25
EP0076188A1 (fr) 1983-04-06
JPS58117910A (ja) 1983-07-13
ES267930U (es) 1983-05-01
JPS6211246B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-03-11
ATE20276T1 (de) 1986-06-15
ES267930Y (es) 1983-11-16
OA07213A (fr) 1984-04-30
FR2513355B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1983-12-02
US4443003A (en) 1984-04-17

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