FR2261179B1 - - Google Patents
Info
- Publication number
- FR2261179B1 FR2261179B1 FR7503818A FR7503818A FR2261179B1 FR 2261179 B1 FR2261179 B1 FR 2261179B1 FR 7503818 A FR7503818 A FR 7503818A FR 7503818 A FR7503818 A FR 7503818A FR 2261179 B1 FR2261179 B1 FR 2261179B1
- Authority
- FR
- France
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/12—Rotor drives
- B64C27/14—Direct drive between power plant and rotor hub
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19014—Plural prime movers selectively coupled to common output
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gear Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB734474 | 1974-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2261179A1 FR2261179A1 (fr) | 1975-09-12 |
| FR2261179B1 true FR2261179B1 (fr) | 1979-01-05 |
Family
ID=9831322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7503818A Expired FR2261179B1 (fr) | 1974-02-18 | 1975-02-07 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3977632A (fr) |
| DE (1) | DE2504880A1 (fr) |
| FR (1) | FR2261179B1 (fr) |
| IT (1) | IT1029726B (fr) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0091744A1 (fr) * | 1982-04-08 | 1983-10-19 | WESTLAND plc | Système de transmission pour hélicoptère |
| US4489625A (en) * | 1982-11-23 | 1984-12-25 | Transmission Research, Inc. | Split torque transmission |
| FR2568541B1 (fr) * | 1984-08-06 | 1987-03-20 | Aerospatiale | Boite de transmission principale pour helicoptere bimoteur |
| US4682512A (en) * | 1985-09-30 | 1987-07-28 | Peterson Carlton G | Power train for heavy lift helicopters |
| US5135442A (en) * | 1990-02-12 | 1992-08-04 | Lucas Western, Inc. | Gear arrangement for transmitting torque through an angle |
| EP0753456A4 (fr) * | 1995-01-04 | 2001-01-24 | Inst Adv Tech Helicopter Ltd | Dispositif de transmission de force pour helicoptere |
| JP3029976B2 (ja) * | 1995-01-27 | 2000-04-10 | 株式会社コミュータヘリコプタ先進技術研究所 | ヘリコプタの動力伝達装置 |
| JP3029981B2 (ja) * | 1995-04-27 | 2000-04-10 | 株式会社コミュータヘリコプタ先進技術研究所 | ヘリコプタの動力伝達装置 |
| US6148683A (en) * | 1996-10-16 | 2000-11-21 | Fleytman; Yakov | Worm/worm gear transmission |
| US6302356B1 (en) | 1998-08-21 | 2001-10-16 | Rolls-Royce Corporation | Helicopter two stage main reduction gearbox |
| US6098921A (en) * | 1999-05-06 | 2000-08-08 | Piasecki Aircraft Corp. | Rotary wing aircraft supplementary power drive system |
| US6364249B1 (en) | 1999-09-30 | 2002-04-02 | Pratt & Whitney Canada Corp. | Engine integrated with rotary wing aircraft transmission |
| US6582338B1 (en) | 1999-10-15 | 2003-06-24 | New Venture Gear, Inc. | Differential unit with worm gearsets |
| US6645112B1 (en) | 1999-10-15 | 2003-11-11 | New Venture Gear, Inc. | On-demand transfer case |
| US6835154B2 (en) * | 1999-10-15 | 2004-12-28 | New Venture Gear, Inc. | On-demand transfer case |
| US6514167B1 (en) | 1999-10-15 | 2003-02-04 | New Venture Gear, Inc. | Continuously variable transmission |
| US6402652B1 (en) | 1999-10-15 | 2002-06-11 | New Venture Gear, Inc. | Continuously variable four-wheel drive transmission with traction control |
| US6464032B1 (en) | 1999-10-15 | 2002-10-15 | New Venture Gear, Inc. | Worm drive axle traction assembly |
| US6447418B1 (en) | 1999-10-15 | 2002-09-10 | New Venture Gear, Inc. | Variable ratio range set for a transfer case |
| US7434764B2 (en) * | 2005-12-02 | 2008-10-14 | Sikorsky Aircraft Corporation | Variable speed gearbox with an independently variable speed tail rotor system for a rotary wing aircraft |
| US8347637B2 (en) | 2010-05-25 | 2013-01-08 | United Technologies Corporation | Accessory gearbox with internal layshaft |
| FR2964948B1 (fr) * | 2010-09-16 | 2012-08-31 | Eurocopter France | Aeronef a voilure tournante muni d'un moyen propulsif, et procede applique par ledit aeronef |
| CN103921948B (zh) * | 2014-03-28 | 2015-10-21 | 吉林大学 | 混合动力双发式共轴双桨直升机 |
| WO2015193906A1 (fr) * | 2014-06-19 | 2015-12-23 | Sibnath Maity | Véhicule à haut rendement énergétique ayant un système de transmission de puissance |
| US10941836B2 (en) | 2017-03-28 | 2021-03-09 | Sikorsky Aircraft Corporation | Rotorcraft internal transfer member transmission |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3129608A (en) * | 1959-12-04 | 1964-04-21 | Westland Aircraft Ltd | Mechanical gearing |
| FR1325704A (fr) * | 1962-03-14 | 1963-05-03 | Sud Aviation | Perfectionnement apporté aux boîtes de transmission pour hélicoptères monorotor à plusieurs turbines |
| GB1389403A (en) * | 1971-06-01 | 1975-04-03 | Westland Aircraft Ltd | Helicopter power transmission systems |
-
1975
- 1975-01-31 US US05/546,109 patent/US3977632A/en not_active Expired - Lifetime
- 1975-02-06 DE DE19752504880 patent/DE2504880A1/de active Pending
- 1975-02-07 FR FR7503818A patent/FR2261179B1/fr not_active Expired
- 1975-02-13 IT IT7548168A patent/IT1029726B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| US3977632A (en) | 1976-08-31 |
| FR2261179A1 (fr) | 1975-09-12 |
| IT1029726B (it) | 1979-03-20 |
| DE2504880A1 (de) | 1975-08-21 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |