FR3074540B1 - IMPROVED THERMAL PROTECTION TIGHTENING DEVICE FOR A DIFFERENT MOTOR - Google Patents

IMPROVED THERMAL PROTECTION TIGHTENING DEVICE FOR A DIFFERENT MOTOR Download PDF

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Publication number
FR3074540B1
FR3074540B1 FR1761734A FR1761734A FR3074540B1 FR 3074540 B1 FR3074540 B1 FR 3074540B1 FR 1761734 A FR1761734 A FR 1761734A FR 1761734 A FR1761734 A FR 1761734A FR 3074540 B1 FR3074540 B1 FR 3074540B1
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FR
France
Prior art keywords
cable
thermal protection
divergent
circumference
wall
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.)
Active
Application number
FR1761734A
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French (fr)
Other versions
FR3074540A1 (en
Inventor
Alain Pyre
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.)
ArianeGroup SAS
Original Assignee
ArianeGroup SAS
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.)
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Publication date
Application filed by ArianeGroup SAS filed Critical ArianeGroup SAS
Priority to FR1761734A priority Critical patent/FR3074540B1/en
Priority to PCT/FR2018/052974 priority patent/WO2019110889A1/en
Publication of FR3074540A1 publication Critical patent/FR3074540A1/en
Application granted granted Critical
Publication of FR3074540B1 publication Critical patent/FR3074540B1/en
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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
    • F02K9/97—Rocket nozzles
    • F02K9/974—Nozzle- linings; Ablative coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/20—Oxide or non-oxide ceramics
    • F05D2300/22—Non-oxide ceramics
    • F05D2300/224—Carbon, e.g. graphite
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/502—Thermal properties
    • F05D2300/5021—Expansivity
    • F05D2300/50212—Expansivity dissimilar

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

Ensemble pour divergent de moteur fusée, comportant un divergent de moteur de fusée présentant une paroi extérieure et un axe de révolution, une pluralité de blocs de protection thermique en matériau thermiquement isolant, configurés pour être disposés contre la paroi extérieure, au moins un câble (10) comportant deux extrémités (10a, 10b) et configuré pour être enroulé autour d'une circonférence du divergent de manière à plaquer la pluralité de blocs de protections thermiques contre la paroi extérieure, le câble (10) ayant un coefficient de dilatation thermique inférieur à celui du divergent, suivant sa circonférence, un dispositif de serrage (20) configuré pour maintenir les deux extrémités (10a, 10b) dudit au moins un câble (10) en vis-à-vis ; l'ensemble comportant en outre au moins une réserve de câble (40), à travers laquelle le câble (10) peut passer en coulissant, et configurée pour contraindre une portion du câble (10) à suivre un trajet prédéterminé présentant une certaine longueur ; la réserve de câble (40) étant réalisée de telle sorte que, lorsque la température augmente, ladite longueur augmente également, mais dans une moindre proportion que la longueur de la circonférence du divergent.Assembly for rocket engine divergence, comprising a rocket engine divergence having an outer wall and an axis of revolution, a plurality of thermal protection blocks made of thermally insulating material, configured to be placed against the outer wall, at least one cable ( 10) having two ends (10a, 10b) and configured to be wrapped around a circumference of the divergent so as to press the plurality of thermal protection blocks against the outer wall, the cable (10) having a lower coefficient of thermal expansion to that of the divergent, along its circumference, a clamping device (20) configured to hold the two ends (10a, 10b) of said at least one cable (10) opposite; the assembly further comprising at least one cable reserve (40), through which the cable (10) can slide, and configured to force a portion of the cable (10) to follow a predetermined path having a certain length; the cable reserve (40) being made so that, when the temperature increases, said length also increases, but in a lesser proportion than the length of the circumference of the divergent.

FR1761734A 2017-12-06 2017-12-06 IMPROVED THERMAL PROTECTION TIGHTENING DEVICE FOR A DIFFERENT MOTOR Active FR3074540B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1761734A FR3074540B1 (en) 2017-12-06 2017-12-06 IMPROVED THERMAL PROTECTION TIGHTENING DEVICE FOR A DIFFERENT MOTOR
PCT/FR2018/052974 WO2019110889A1 (en) 2017-12-06 2018-11-26 Improved device for clamping heat shields for rocket engine diverging nozzle section

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1761734 2017-12-06
FR1761734A FR3074540B1 (en) 2017-12-06 2017-12-06 IMPROVED THERMAL PROTECTION TIGHTENING DEVICE FOR A DIFFERENT MOTOR

Publications (2)

Publication Number Publication Date
FR3074540A1 FR3074540A1 (en) 2019-06-07
FR3074540B1 true FR3074540B1 (en) 2019-12-20

Family

ID=62143246

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1761734A Active FR3074540B1 (en) 2017-12-06 2017-12-06 IMPROVED THERMAL PROTECTION TIGHTENING DEVICE FOR A DIFFERENT MOTOR

Country Status (2)

Country Link
FR (1) FR3074540B1 (en)
WO (1) WO2019110889A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1533733A (en) * 1967-08-07 1968-07-19 Hitco High temperature bodies and their manufacturing process
US4344591A (en) * 1979-09-05 1982-08-17 The United States Of America Asrepresented By The Administrator Of The National Aeronautics And Space Administration Multiwall thermal protection system
US8047550B2 (en) * 2009-02-09 2011-11-01 The Boeing Company Tile gap seal assembly and method

Also Published As

Publication number Publication date
WO2019110889A1 (en) 2019-06-13
FR3074540A1 (en) 2019-06-07

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