FR3085349B1 - MAIN TRANSMISSION BOX FOR CONTRAROTARY HELICOPTER - Google Patents
MAIN TRANSMISSION BOX FOR CONTRAROTARY HELICOPTER Download PDFInfo
- Publication number
- FR3085349B1 FR3085349B1 FR1857882A FR1857882A FR3085349B1 FR 3085349 B1 FR3085349 B1 FR 3085349B1 FR 1857882 A FR1857882 A FR 1857882A FR 1857882 A FR1857882 A FR 1857882A FR 3085349 B1 FR3085349 B1 FR 3085349B1
- Authority
- FR
- France
- Prior art keywords
- output shaft
- helicopter
- main transmission
- transmission box
- contrarotary
- 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
Links
- 230000005540 biological transmission Effects 0.000 title abstract 3
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
- B64C27/10—Helicopters with two or more rotors arranged coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/12—Rotor drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gear Transmission (AREA)
- Transmission Devices (AREA)
Abstract
Une boite de transmission principale (1) pour un hélicoptère comportant deux rotors contrarotatifs entrainés par un même moteur, la boite de transmission principale (1) comprenant un arbre d'entrée (10) adapté pour être entrainé en rotation par le moteur d'hélicoptère selon un axe d'entrée E, un premier arbre de sortie (11) et un deuxième arbre de sortie (12) respectivement adaptés pour entrainer les rotors de l'hélicoptère selon un même axe de sortie S, l'arbre d'entrée (10) étant relié au premier arbre de sortie (11) par une première ligne d'engrenage (LE1) comprenant un pignon d'orientation (31), l'arbre d'entrée (10) est relié au deuxième arbre de sortie (12) par une deuxième ligne d'engrenage (LE2), la deuxième ligne d'engrenage (LE2) comprenant un pignon d'orientation (32), les pignons d'orientation (31, 32) des lignes d'engrenage (LE1, LE2) étant montés de manière opposée afin que le premier arbre de sortie (11) et le deuxième arbre de sortie (12) soient entrainés de manière contrarotative.A main transmission box (1) for a helicopter comprising two counter-rotating rotors driven by the same engine, the main transmission box (1) comprising an input shaft (10) adapted to be rotated by the helicopter engine along an input axis E, a first output shaft (11) and a second output shaft (12) respectively adapted to drive the helicopter rotors along a same output axis S, the input shaft ( 10) being connected to the first output shaft (11) by a first gear line (LE1) comprising an orientation pinion (31), the input shaft (10) is connected to the second output shaft (12) ) by a second gear line (LE2), the second gear line (LE2) comprising an orientation pinion (32), the orientation pinions (31, 32) of the gear lines (LE1, LE2) ) being mounted oppositely so that the first output shaft (11) and the second output shaft (12) are driven in the same manner trarotative.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1857882A FR3085349B1 (en) | 2018-09-03 | 2018-09-03 | MAIN TRANSMISSION BOX FOR CONTRAROTARY HELICOPTER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1857882A FR3085349B1 (en) | 2018-09-03 | 2018-09-03 | MAIN TRANSMISSION BOX FOR CONTRAROTARY HELICOPTER |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3085349A1 FR3085349A1 (en) | 2020-03-06 |
FR3085349B1 true FR3085349B1 (en) | 2021-04-09 |
Family
ID=63963223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1857882A Active FR3085349B1 (en) | 2018-09-03 | 2018-09-03 | MAIN TRANSMISSION BOX FOR CONTRAROTARY HELICOPTER |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR3085349B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112141326A (en) * | 2020-08-21 | 2020-12-29 | 中电科芜湖钻石飞机制造有限公司 | Coaxial double-oar flying device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB151181A (en) * | 1919-11-19 | 1920-09-23 | Raul Pateras Pescara | Means for the transmission of power stress or torque to the propellers of flying machines of helicopteral type |
US4531692A (en) * | 1982-03-15 | 1985-07-30 | Ernesto Mateus | Helicopter flight control and transmission system |
IT1261872B (en) * | 1993-09-17 | 1996-06-03 | Fiatavio Spa | APPLICATION OF FACIAL GEARS FOR TRANSMISSIONS FOR HELICOPTERS. |
US7413142B2 (en) * | 2005-05-31 | 2008-08-19 | Sikorsky Aircraft Corporation | Split torque gearbox for rotary wing aircraft with translational thrust system |
US9278760B2 (en) * | 2013-09-04 | 2016-03-08 | Sikorsky Aircraft Corporation | Torque split gearbox for rotary wing aircraft |
-
2018
- 2018-09-03 FR FR1857882A patent/FR3085349B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR3085349A1 (en) | 2020-03-06 |
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Legal Events
Date | Code | Title | Description |
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PLFP | Fee payment |
Year of fee payment: 2 |
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PLSC | Publication of the preliminary search report |
Effective date: 20200306 |
|
PLFP | Fee payment |
Year of fee payment: 3 |
|
PLFP | Fee payment |
Year of fee payment: 4 |
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PLFP | Fee payment |
Year of fee payment: 5 |
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PLFP | Fee payment |
Year of fee payment: 6 |