NO344389B1 - A system for variable blade pitch control and autorotation for electrically powered rotorcraft - Google Patents
A system for variable blade pitch control and autorotation for electrically powered rotorcraft Download PDFInfo
- Publication number
- NO344389B1 NO344389B1 NO20181567A NO20181567A NO344389B1 NO 344389 B1 NO344389 B1 NO 344389B1 NO 20181567 A NO20181567 A NO 20181567A NO 20181567 A NO20181567 A NO 20181567A NO 344389 B1 NO344389 B1 NO 344389B1
- Authority
- NO
- Norway
- Prior art keywords
- blade pitch
- hollow
- autorotation
- rotor
- clutch
- Prior art date
Links
- 238000012546 transfer Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims 1
- 230000007704 transition Effects 0.000 description 9
- 230000009977 dual effect Effects 0.000 description 4
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
- B64C27/58—Transmitting means, e.g. interrelated with initiating means or means acting on blades
- B64C27/68—Transmitting means, e.g. interrelated with initiating means or means acting on blades using electrical energy, e.g. having electrical power amplification
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Harvester Elements (AREA)
- Valve Device For Special Equipments (AREA)
Claims (5)
1. Et system for kontroll av variabel bladvinkel og autorotasjon for elektrisk drevet rotorfartøy med minst to rotorer, karakterisert ved et system som omfatter: minst én elektrisk lineær aktuator med clutch (1), plassert delvis inne i en rotor med hul drivaksel (4) som en del av en elektrisk motor (2), for å justere bladvinkelen;
minst en trykkplate (7) for å overføre vertikal belastning mellom minst to hule drivaksler (6, 11);
ett eller flere frihjul (8) konstruert for vertikal operasjon for å koble til, eller frakoble, rotasjonsdrift mellom to hule drivaksler (6,11);
minst en kalibrert fjær (10), som befinner seg mellom rotornavet (15) og antivridningsbolten (13), for å bevege anti-vridningsbolten (13) og bladvinkelens endringsplate (17) for å sette et optimalt angrepsvinkel for autorotasjon når den elektriske lineære aktuatoren med kobling (1) er frakoblet på grunn av feil.
2. Systemet ifølge krav 1, karakterisert ved at minst en elektrisk lineær aktuator med clutch (1) er lokalisert delvis inne i en elektrisk motor (2), og omfatter to aktuatorstag som arbeider parallelt og uavhengig av hverandre, for å opprettholde sikker operasjon ved feil på et av aktuatorstagene.
3. Systemet ifølge krav 1, karakterisert ved minst en trykkplate (7) for å overføre vertikale belastninger mellom to hule drivaksler (6, 11), og som omfatter en solid sirkulær plate festet til hul drivaksel nr.3 (11) for overføring av belastningene til hul drivaksel nr.2 (6) gjennom minst ett thrust-kulelager, frihjul (8) og låsemutter (9).
4. Systemet ifølge krav 1, karakterisert ved at minst ett frihjul (8) for tilkobling, eller frakopling, av rotasjonsdrift fra hul drivaksel nr.2 (6) til hul drivaksel nr.3 (11), og dermed til- eller frakobling mellom den elektriske motoren (2 ) og rotornavet (15), omfattet med en forsterket konstruksjon av beholderen som holder de bevegelige interne delene i frihjulet på plass, samt forsterkede sidevegger, for å motstå de vertikale belastningene og sikre fri operasjon av frihjulet.
5. Systemet ifølge krav 1, karakterisert ved at minst en kalibrert fjær (10), som befinner seg mellom rotornavet (15) og anti-vridningsbolten (13), beveges til sin nøytrale utgangsstilling når den elektriske lineære aktuatoren med kobling (1) er frakoblet, og derved bevege anti-vridningsbolten (13) og bladvinkelens endringsplate (17) for å vri bladvinkelen til den optimale angrepsvinkelen for autorotasjon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20181567A NO344389B1 (en) | 2018-12-06 | 2018-12-06 | A system for variable blade pitch control and autorotation for electrically powered rotorcraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20181567A NO344389B1 (en) | 2018-12-06 | 2018-12-06 | A system for variable blade pitch control and autorotation for electrically powered rotorcraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO344389B1 true NO344389B1 (en) | 2019-11-25 |
Family
ID=68806279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20181567A NO344389B1 (en) | 2018-12-06 | 2018-12-06 | A system for variable blade pitch control and autorotation for electrically powered rotorcraft |
Country Status (1)
| Country | Link |
|---|---|
| NO (1) | NO344389B1 (no) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090140095A1 (en) * | 2007-11-30 | 2009-06-04 | Jayant Sirohi | Electric powered rotary-wing aircraft |
| US20130119187A1 (en) * | 2011-11-10 | 2013-05-16 | Eurocopter | Device for varying blade pitch of a lift rotor |
| US20130264412A1 (en) * | 2012-02-21 | 2013-10-10 | Eurocopter | Rotary wing aircraft having a tail rotor, and a method of optimizing the operation of a tail rotor |
| WO2015138655A1 (en) * | 2014-03-11 | 2015-09-17 | Carter Aviation Technologies, Llc | Mast dampener and collective pitch in a rotorcraft |
-
2018
- 2018-12-06 NO NO20181567A patent/NO344389B1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090140095A1 (en) * | 2007-11-30 | 2009-06-04 | Jayant Sirohi | Electric powered rotary-wing aircraft |
| US20130119187A1 (en) * | 2011-11-10 | 2013-05-16 | Eurocopter | Device for varying blade pitch of a lift rotor |
| US20130264412A1 (en) * | 2012-02-21 | 2013-10-10 | Eurocopter | Rotary wing aircraft having a tail rotor, and a method of optimizing the operation of a tail rotor |
| WO2015138655A1 (en) * | 2014-03-11 | 2015-09-17 | Carter Aviation Technologies, Llc | Mast dampener and collective pitch in a rotorcraft |
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