US3294020A - Ignition device - Google Patents

Ignition device Download PDF

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Publication number
US3294020A
US3294020A US427616A US42761665A US3294020A US 3294020 A US3294020 A US 3294020A US 427616 A US427616 A US 427616A US 42761665 A US42761665 A US 42761665A US 3294020 A US3294020 A US 3294020A
Authority
US
United States
Prior art keywords
sheet
channel
case
ignition
burning
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
US427616A
Other languages
English (en)
Inventor
Stadler Hans
Gawlick Heinz
Bendler Hellmut
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Application granted granted Critical
Publication of US3294020A publication Critical patent/US3294020A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/24—Cartridge closures or seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/26—Starting; Ignition
    • F02C7/264—Ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/02—Cartridges
    • F42B8/04—Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/0819—Primers or igniters for the initiation of rocket motors, i.e. pyrotechnical aspects thereof

Definitions

  • the present invention relates to an ignition device, 1and more particularly to long-burning ignition means for gas mixtures, especially in combustion engines.
  • the ignition ame is produced by burning down a hollow :cylinder of powder accommodated in a cartridge case and essentially consisting of :components non-'dangerous -to corrosion, which is caused to burn ⁇ down in the direction from the cartridge case end iby the ignition jet penetrating through the cylinder channel and produced by an ignition means arranged in the bottom piece of the cartridge.
  • a cartridge of this ltype can be ignited externally ⁇ by an extremely simple striker mechanism having a striker pin or .by an electric lfuse or primer. Corrosion-dangerous residues do not occur with such an arrangement; for insofar as the ignition means contains any corrosion-dangerous components at all, they represent only a minimum -fraction of the cor-responding residues of a prior art ignition lighter.
  • the ignition composition of the ignition 'device is so mixed Iand compounded according to a further ,feature of the present invention that it Idoes not produce during penetration through the hollow cylinder the heat required for the ignition of the powder. Instead, one of several foils are placed over the hollow cylinder of powder which are ignited by the ignition jet and which only in ⁇ their turn cause ignition of the powder composition.
  • the innermost foil is appropriately notched, grooved, or perforated and the rims of the apertures or perforations are bent inwardly so that the ignition by means of the ignitionjet becomes particularly safe.
  • the powder Kfoils or sheets in general will be at a distance of 30 to 70 mm. from the primer lor tuse.
  • the ignition composition and powder foils are made appropriately of the same powder mass.
  • Particularly favorable fo-r such mass is 'a mixture of nitrocellulose and nitroglycerine and/ or nitroglycol. This mixture can be readily manufactured and handled.
  • a burning duration lof 22 to 130 seconds was achieved with the present invention.
  • the burning duration may be correspondingly increased.
  • the burning duration is ⁇ constant with sucient certainty. If one desires to reinforce the flame, then the outer diameter of the blank will be increased with the same inner diameter.
  • the burning duration may also be correspondingly reduced by shortening the length ofthe blank.
  • Another object of the present invention resides in the provision of ignition means for gas mixtures which assure with reliable certainty a given burning duration over relatively long period of time.
  • a furthe-r object of the present invention resides in the provision of an ignition device, especially Afor engines operating with propellants consisting of gas mixtures that permit simple handling lduring -the ignition of such engines.
  • Still another object of the present invent-ion resides in the provision o-f an ignition device for igniting gas mixtures, especially in power engines, which minimizes the danger of corrosion producing residues.
  • Still another object of the .present invention resides in the provision of an ignition device of the type described above which is not only extraordinarily safe and reliable in operation but also permits the use of powder mixtures that can be readily manufactured and handled.
  • a -furt-he-r object of the pre-sent invention resides in the provision of an ignition ymeans -for gas mixtures of engines which is relatively simple in structure, inexpensive in manufacture and constant in its Iburning duration.
  • the ignition device in accordance with the present invention has about the shape of a sporting cartridge with a case 1 and a bottom piece 5.
  • the case 1 is made in one piece with the bottom piece 5, especially of 'conventional plastic material.
  • a primer or ⁇ fuse 2 of conventional construction is inserted into the bottom piece 5.
  • the burn-ing charge 3 is constituted by a blank provided with a free internal channel 6.
  • a number of powder foils yor sheets 4 are pla-ced over the blank 3 which are held in place by the flanged-over rim 7 of the case 1.
  • the foils 4 are apertured and the aperture rims are bent inwardly Vat 8.
  • a cartridge -for igniting gas mixtures with air or oxygen requiring a hot ignition flame burning for a relatively long period of time, especially for gaseous propellants of engines comprising a generally tubular oase having rearward and forward ends; a bottom piece substantially closing the rearward end of said case; Ia generally tubular 'burning charge within said case forming a generally axially extending tiring channel substantially void of propellant change; means at the forward end of said case adjacent to said charge for igniting said burn-ing charge including at least one sheet of ignition powder extending generally transverse to the axis of said chanel; said sheet being provided with at least one aperture aligned with said channel; the area of the cross section of said aperture being substantially less than the area of the cnoss section of said channel; sheet means adjacent said apertured sheet for completely closing said aperture and said channel; and said sheet and sheet means being the sole end closure for said cartridge case.
  • each of said apertured sheet is substantially foil-like; said case and said bottom piece being ⁇ hon'logeneo'usly constructed of plastic; Vthe forward portion of said case being provided with an inwardly directed substantially annular ange; said ange directly engaging said sheet means and tightly pressing said sheets into direct engagement with the forward portion of said burning charge; primer means within said bottom piece aligned with said channel for projecting an ignition flame through said channel ⁇ and directly onto said sheets for igniting said sheets prior to the ignition of said charge; said burning charge consisting essentially of nitrocellulose and one or 'more of the substances selected from the group consisting of nitroglycol and nitroglycerine; said burning charge having a residue that is substantially non-corrosive.
  • the cartridge according to claim 1 including additional apertured sheets of ignition powder substantially identical to .and in axially stacked engagement with said firstmentioned apertured sheet.
  • said burning charge consists essentially ⁇ of nitrocellulose and at least one ofthe compounds selected ⁇ from the group consisting of nitroglycerine and nitnoglycol; said burning charge having a substantially non-corrosive residue.
  • each of said apertured sheet and sheet means is constructed as a foil.
  • said burning charge consists essentially of nitrocellulose and at least one ⁇ 'of the compounds selected from the group consisting of nitroglycerine and nitroglycol, said burning charging having a substantially non-corrosive residue.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
US427616A 1964-01-24 1965-01-25 Ignition device Expired - Lifetime US3294020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED43427A DE1216618B (de) 1964-01-24 1964-01-24 Zuendmittel fuer Gasgemische, insbesondere fuer Kraftmaschinen, z. B. Gasturbinen

Publications (1)

Publication Number Publication Date
US3294020A true US3294020A (en) 1966-12-27

Family

ID=7047571

Family Applications (1)

Application Number Title Priority Date Filing Date
US427616A Expired - Lifetime US3294020A (en) 1964-01-24 1965-01-25 Ignition device

Country Status (9)

Country Link
US (1) US3294020A (cs)
AT (1) AT258652B (cs)
BE (1) BE658616A (cs)
CH (1) CH416222A (cs)
DE (1) DE1216618B (cs)
DK (1) DK113116B (cs)
GB (1) GB1093285A (cs)
NL (1) NL6500819A (cs)
SE (1) SE309136B (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190226818A1 (en) * 2018-01-21 2019-07-25 Vista Outdoor Operations Llc Muzzleloader systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436305A (en) * 1944-02-03 1948-02-17 Remington Arms Co Inc Ammunition
US2518958A (en) * 1945-06-20 1950-08-15 Ici Ltd Electrically ignitible power gas generating blank cartridges
US2740356A (en) * 1950-08-04 1956-04-03 Rotax Ltd Cartridge with coolant
US2942547A (en) * 1958-06-24 1960-06-28 Olin Mathieson Gas generating assembly
US2959001A (en) * 1957-10-09 1960-11-08 American Potash & Chem Corp Ignition of rocket thrust devices

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759419A (en) * 1952-08-20 1956-08-21 Olin Mathieson Igniter cartridge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436305A (en) * 1944-02-03 1948-02-17 Remington Arms Co Inc Ammunition
US2518958A (en) * 1945-06-20 1950-08-15 Ici Ltd Electrically ignitible power gas generating blank cartridges
US2740356A (en) * 1950-08-04 1956-04-03 Rotax Ltd Cartridge with coolant
US2959001A (en) * 1957-10-09 1960-11-08 American Potash & Chem Corp Ignition of rocket thrust devices
US2942547A (en) * 1958-06-24 1960-06-28 Olin Mathieson Gas generating assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190226818A1 (en) * 2018-01-21 2019-07-25 Vista Outdoor Operations Llc Muzzleloader systems

Also Published As

Publication number Publication date
DE1216618B (de) 1966-05-12
SE309136B (cs) 1969-03-10
AT258652B (de) 1967-12-11
CH416222A (de) 1966-06-30
DK113116B (da) 1969-02-17
GB1093285A (en) 1967-11-29
BE658616A (cs) 1965-05-17
NL6500819A (cs) 1965-07-26

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