FR2235283A1 - Propellant blocks for rockers - with central combustion channel having unequal branches - Google Patents

Propellant blocks for rockers - with central combustion channel having unequal branches

Info

Publication number
FR2235283A1
FR2235283A1 FR7323864A FR7323864A FR2235283A1 FR 2235283 A1 FR2235283 A1 FR 2235283A1 FR 7323864 A FR7323864 A FR 7323864A FR 7323864 A FR7323864 A FR 7323864A FR 2235283 A1 FR2235283 A1 FR 2235283A1
Authority
FR
France
Prior art keywords
branches
block
combustion
rockers
radius
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
Application number
FR7323864A
Other languages
French (fr)
Other versions
FR2235283B1 (en
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Priority to FR7323864A priority Critical patent/FR2235283A1/en
Publication of FR2235283A1 publication Critical patent/FR2235283A1/en
Application granted granted Critical
Publication of FR2235283B1 publication Critical patent/FR2235283B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
    • F02K9/10—Shape or structure of solid propellant charges
    • F02K9/18—Shape or structure of solid propellant charges of the internal-burning type having a star or like shaped internal cavity

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Engines (AREA)

Abstract

Propellant blocks, for central or internal combustion are partic. intended for the propulsion of rockets. The channel has several branches >=1 has its end situated at a distance greater than the ends of the other branches. The shorter branches are all equal and their ends lie on a cylinder with a radius of R-e, R being the radius of the block and the thickness of the combustible matl. of the block. The distance between the ends of the shorter branches and the external surface is therefore slightly less than e. Non-combustible zones are arranged on the periphery of the block, opposite the longest branches; they consist of thermal insulating material which resist the high combustion temp. They also thermal protect the inner wall of the power plant against which the block is applied they have an effect in restraining the progress of the combustion around the periphery. The surface of the central channel constitutes the initial combustion surface, by keeping this constant a constant thrust is obtd. during the course of the trajectory of the rocket.
FR7323864A 1973-06-29 1973-06-29 Propellant blocks for rockers - with central combustion channel having unequal branches Granted FR2235283A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7323864A FR2235283A1 (en) 1973-06-29 1973-06-29 Propellant blocks for rockers - with central combustion channel having unequal branches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323864A FR2235283A1 (en) 1973-06-29 1973-06-29 Propellant blocks for rockers - with central combustion channel having unequal branches

Publications (2)

Publication Number Publication Date
FR2235283A1 true FR2235283A1 (en) 1975-01-24
FR2235283B1 FR2235283B1 (en) 1976-05-07

Family

ID=9121778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7323864A Granted FR2235283A1 (en) 1973-06-29 1973-06-29 Propellant blocks for rockers - with central combustion channel having unequal branches

Country Status (1)

Country Link
FR (1) FR2235283A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018510293A (en) * 2015-02-12 2018-04-12 チェアマン, ディフェンス リサーチ アンド ディヴェロップメント オーガナイゼーション (ディーアールディーオー)Chairman, Defence Research & Development Organisation (Drdo) Propellant grain for solid rocket motors
CN110529288A (en) * 2019-08-28 2019-12-03 湖北三江航天江北机械工程有限公司 Solid propellant rocket, the method and chamber structure for inhibiting medicine more than its powder charge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260045A (en) * 1962-01-30 1966-07-12 Propelling charge for solid-fuel rockets

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260045A (en) * 1962-01-30 1966-07-12 Propelling charge for solid-fuel rockets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018510293A (en) * 2015-02-12 2018-04-12 チェアマン, ディフェンス リサーチ アンド ディヴェロップメント オーガナイゼーション (ディーアールディーオー)Chairman, Defence Research & Development Organisation (Drdo) Propellant grain for solid rocket motors
CN110529288A (en) * 2019-08-28 2019-12-03 湖北三江航天江北机械工程有限公司 Solid propellant rocket, the method and chamber structure for inhibiting medicine more than its powder charge

Also Published As

Publication number Publication date
FR2235283B1 (en) 1976-05-07

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Legal Events

Date Code Title Description
ST Notification of lapse