EP0822384A2 - Particule propulsive pour charge propulsive - Google Patents

Particule propulsive pour charge propulsive Download PDF

Info

Publication number: EP0822384A2
Authority: EP; European Patent Office
Prior art keywords: grains; grain; radius; propellant charge; propellant
Prior art date: 1996-08-03
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

Application number

EP97113204A

Other languages

German (de)

English (en)

Other versions

EP0822384A3 (fr

EP0822384B1 (fr

Inventor

Manfred Dr. Schildknecht

Axel Dr. Pfersmann

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.)

Diehl Stiftung and Co KG

Original Assignee

Diehl Stiftung and Co KG

Diehl GmbH and Co

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.)

1996-08-03

Filing date

1997-07-31

Publication date

1998-02-04

1997-07-31 Application filed by Diehl Stiftung and Co KG, Diehl GmbH and Co filed Critical Diehl Stiftung and Co KG

1998-02-04 Publication of EP0822384A2 publication Critical patent/EP0822384A2/fr

1998-12-23 Publication of EP0822384A3 publication Critical patent/EP0822384A3/fr

2001-10-04 Application granted granted Critical

2001-10-04 Publication of EP0822384B1 publication Critical patent/EP0822384B1/fr

2017-07-31 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000003380 propellant Substances 0.000 title claims description 25
239000002245 particle Substances 0.000 title 1
125000006850 spacer group Chemical group 0.000 claims description 5
238000012856 packing Methods 0.000 claims 1
239000007789 gas Substances 0.000 description 2
239000000843 powder Substances 0.000 description 2
241000219504 Caryophyllales Species 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
238000010304 firing Methods 0.000 description 1
230000001535 kindling effect Effects 0.000 description 1

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder

Definitions

the invention relates to a propellant grain for a stratified propellant according to the preamble of claim 1.
a charge build-up is higher to increase the performance of existing barrel weapons Loading density required, see US-A 4,094,248.
Geometrically through arrangements shaped single grains with a hexagonal cross-section are higher loading densities than can be achieved with bulk powder.
the one on the outside of the hexagonal Grains and holes arranged inside the body have a very small cross-section so that the flame front gradually becomes ignited by the Front face spreads in the longitudinal direction.
the invention has for its object a propellant for a stratified Propose propellant charge with good kindling.
the invention solves this problem according to the characterizing features of claim 1.
the polygonal multi-hole grain according to the invention has at its corner points special longitudinal grooves on whose radius is significantly larger than the hole radius of the Grains.
the longitudinal grooves With a stratified propellant charge with grains arranged side by side the longitudinal grooves each form flow channels with a circular cross section. The diameter of these channels ensures that the wall surface is lit. of the entire flow channels lying one behind the other, namely from the ignition side to the end of the grain, that is to say the end of the grain.
a particularly good ignition and ignition of the grains is according to claim 2 ensures that the radius of the groove is 0.5 to 2 times the web width or is 10 to 20 times the hole radius.
the end faces of the grains with spacers, like knobs connected in one piece with the grain.
triangular grains 2 of a propellant charge are in a propellant charge sleeve 1 10 covering the entire area with respect to the cross section of the propellant charge sleeve 1 each six-surface, (merging) surface segments 4 assembled and - corresponding to a charge length, not shown - on each other stacked.
Each grain 2 has at its corner 3 a longitudinal groove 5 with a radius 6 and thus a corresponding circular section 7 and through holes 9.
the radius 6 of the channels 20 is 1.5 times a web width 22 between two holes 9.
a grain 30 is provided with a square cross section and has at its corners 31 a longitudinal groove 33 with a 90 ° cutout 32 with the Radius 6 on
a six-surface grain 40 has one at each of its corners 41 Longitudinal groove 43 with a 120 ° cutout 42 with radius 6 and the holes 9 on.
the spacer 61 is a multi-edged, separate film consists of propellant powder. This film 61 ensures the Distance 52.
the hot ignition gases include both channels 20 and subchannels 17-19 and the transverse channels 53. This is a - starting from the longitudinal grooves 5 and 32 respectively simultaneous burning of grains 2 and 30 achieved from the outside.
Front firing fronts on the grains 2, not shown, are known in the art Way supported by the holes 9. This is the required, good ignition property on grain 2 or on the other grains 30, 40, 50, 60 before.
the circular cross section of the channels 20 is not mandatory. This cross section can also be elliptical or different.

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Nozzles (AREA)
Optical Radar Systems And Details Thereof (AREA)
Drilling And Exploitation, And Mining Machines And Methods (AREA)

EP97113204A 1996-08-03 1997-07-31 Particule propulsive pour charge propulsive Expired - Lifetime EP0822384B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19631428A DE19631428A1 (de)	1996-08-03	1996-08-03	Treibladungskorn für eine geschichtete Treibladung
DE19631428		1996-08-03

Publications (3)

Publication Number	Publication Date
EP0822384A2 true EP0822384A2 (fr)	1998-02-04
EP0822384A3 EP0822384A3 (fr)	1998-12-23
EP0822384B1 EP0822384B1 (fr)	2001-10-04

Family

ID=7801727

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97113204A Expired - Lifetime EP0822384B1 (fr)	1996-08-03	1997-07-31	Particule propulsive pour charge propulsive

Country Status (2)

Country	Link
EP (1)	EP0822384B1 (fr)
DE (2)	DE19631428A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1275929A3 (fr) *	2001-06-27	2003-09-10	Rheinmetall W & M GmbH	Charge propulsive modulaire en forme de disque
WO2011153655A3 (fr) *	2011-09-15	2013-03-28	Nitrochemie Wimmis Ag	Système de propulsion à perforations multiples haute performance, exempt de nitroglycérine
WO2014195650A1 (fr) *	2013-06-06	2014-12-11	Herakles	Chargement pyrotechnique et generateur de gaz comprenant un tel chargement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US11591885B2 (en)	2018-05-31	2023-02-28	DynaEnergetics Europe GmbH	Selective untethered drone string for downhole oil and gas wellbore operations
US12031417B2 (en)	2018-05-31	2024-07-09	DynaEnergetics Europe GmbH	Untethered drone string for downhole oil and gas wellbore operations
WO2021185749A1 (fr)	2020-03-16	2021-09-23	DynaEnergetics Europe GmbH	Adaptateur d'étanchéité en tandem avec matériau traceur intégré

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4094248A (en)	1977-04-21	1978-06-13	The United States Of America As Represented By Secretary Of The Army	High packing density propellant grains

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE95792C (fr) *
FR437228A (fr) *	1911-12-06	1912-04-16	Marie Louis Raoul Saladin	Poudre de guerre et de chasse, et son système de fabrication
FR463900A (fr) *	1913-10-22	1914-03-06	James Lawrence Walsh	Perfectionnements aux grains de poudre
FR1068300A (fr) *	1952-12-12	1954-06-23		Poudres tubulaires à cavités nervurées
US2918005A (en) *	1956-10-31	1959-12-22	Schecter George	Sheet propellant
US4386569A (en) *	1979-05-30	1983-06-07	The United States Of America As Represented By The Secretary Of The Army	Solid propellant grain for improved ballistic performance guns

1996
- 1996-08-03 DE DE19631428A patent/DE19631428A1/de not_active Withdrawn
1997
- 1997-07-31 DE DE59704763T patent/DE59704763D1/de not_active Expired - Fee Related
- 1997-07-31 EP EP97113204A patent/EP0822384B1/fr not_active Expired - Lifetime

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4094248A (en)	1977-04-21	1978-06-13	The United States Of America As Represented By Secretary Of The Army	High packing density propellant grains

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1275929A3 (fr) *	2001-06-27	2003-09-10	Rheinmetall W & M GmbH	Charge propulsive modulaire en forme de disque
US6820558B2 (en)	2001-06-27	2004-11-23	Rheinmetall W & M Gmbh	Disk-shaped propellant module
WO2011153655A3 (fr) *	2011-09-15	2013-03-28	Nitrochemie Wimmis Ag	Système de propulsion à perforations multiples haute performance, exempt de nitroglycérine
WO2014195650A1 (fr) *	2013-06-06	2014-12-11	Herakles	Chargement pyrotechnique et generateur de gaz comprenant un tel chargement
FR3006756A1 (fr) *	2013-06-06	2014-12-12	Herakles	Chargement pyrotechnique et generateur de gaz comprenant un tel chargement
US10035489B2 (en)	2013-06-06	2018-07-31	Arianegroup Sas	Pyrotechnic charge and gas generator comprising such a charge

Also Published As

Publication number	Publication date
DE19631428A1 (de)	1998-02-05
DE59704763D1 (de)	2001-11-08
EP0822384A3 (fr)	1998-12-23
EP0822384B1 (fr)	2001-10-04

Legal Events

Date	Code	Title	Description
1997-12-19	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1998-02-04	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB SE
1998-05-20	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: DIEHL STIFTUNG & CO.
1998-11-06	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1998-12-23	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
1999-01-20	17P	Request for examination filed	Effective date: 19981124
1999-05-12	17Q	First examination report despatched	Effective date: 19990325
1999-09-01	AKX	Designation fees paid	Free format text: DE FR GB SE
2001-02-28	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2001-03-22	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2001-03-22	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2001-07-06	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2001-08-17	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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2002-01-30	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 20020104
2002-03-15	ET	Fr: translation filed
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2002-08-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
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2003-09-17	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20030917 Year of fee payment: 7
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