Warning device on an aircraft
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0086639
(1987-08-18)
|
우선권정보 |
CH-0003632 (1986-09-10) |
발명자
/ 주소 |
- Vuichard Claude (Fribourg CHX)
|
출원인 / 주소 |
- Air-Zermatt AG. (Zermatt CHX 03)
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인용정보 |
피인용 횟수 :
7 인용 특허 :
4 |
초록
▼
A measuring device (1, 12, 13, 14) is equipped with a blade angle indicator (1) indicating the blade angle adjustment of the rotor blades of a helicopter, a pressure altimeter (13) and an outside temperature probe (14). The measuring device (1, 12, 13, 14) is linked to a control device (4-6) which h
A measuring device (1, 12, 13, 14) is equipped with a blade angle indicator (1) indicating the blade angle adjustment of the rotor blades of a helicopter, a pressure altimeter (13) and an outside temperature probe (14). The measuring device (1, 12, 13, 14) is linked to a control device (4-6) which has a central processing unit (4) and a program memory (5). The memory (5) stores data processing instructions for determining density height from pressure height and outside temperature as well as data processing instructions corresponding to the helicopter operating instructions for determining the permissible maximum value of the blade angle from the density height. The control device (4-6) periodically determines the density height on the basis of the prevailing pressure height and outside temperature and the corresponding permissible maximum value of the blade angle. It compares the blade angle value of the blade angle indicator (1) with the maximum value and when the value exceeds the maximum value controls an audible signal generator (21) linked to the transceiver (20) of the helicopter which emits an audible signal to the headphones (23) of the transceiver for as long as the value is exceeded.
대표청구항
▼
A warning device in a rotary wing aircraft provided with a blade angle adjusting device for adjusting the blade angle of the rotor blades and a transceiver (20) with headphones (23), comprising an audible signal generator (21) connected to the transceiver (20), a measuring device (1, 13, 14) having
A warning device in a rotary wing aircraft provided with a blade angle adjusting device for adjusting the blade angle of the rotor blades and a transceiver (20) with headphones (23), comprising an audible signal generator (21) connected to the transceiver (20), a measuring device (1, 13, 14) having a blade angle indicator (1) disposed on the blade angle adjusting device, a pressure altimeter (13) and an outside temperature probe (14), a control device (4-6) having a central processing unit (4) and a program memory (5) linked to the measuring device (1, 13, 14) containing a program memory (5) in which are stored data processing instructions for determining density height from pressure height and outside temperature, and data processing instructions corresponding to the predetermined operating thresholds of the aircraft to prevent overload, for determining the permissible maximum value of the blade angle from the determined density height, wherein said control device (4-6) determines the maximum permissible value of the blade angle for the density height determined according to the relevant pressure height and outside temperature, periodically calculates the quotient from the blade angle value and the maximum value, and in the case of the quotient exceeding the value 1, controls said audible signal generator (21) depending on the quotient in such a way that an audible impulse sequence is generated and emitted to the headphones (23), the pulse repetition frequency of which is greater, the greater the value of the quotient.
이 특허에 인용된 특허 (4)
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Cotton ; Lou S., Aerodynamic surface load sensing.
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Seemann Robert A. (89 Earl Ave. Hamden CT 06514), Apparatus for directly measuring density altitude in an aircraft.
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Morrison Terry (Vernon CT) Howlett James J. (North Haven CT) Zagranski Raymond D. (Somers CT), Helicopter cruise fuel conserving engine control.
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Moore M. Samuel (Northridge CA) Paluka Charles F. (Northridge CA), Helicopter low-g monitor, recorder and warning system.
이 특허를 인용한 특허 (7)
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Kisor, Ron; Bielefeld, Wendell; Hughling, David, Aircraft feathering, flapping and rotor loads indicator.
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Ian Amos CA, Apparatus to calculate dynamic values for pressure density in an aircraft.
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Potts, Stephen Cary; Speaks, Kenneth Wayne; Zekoff, Michael Peter, Calculation of helicopter rotor balance adjustments and coefficients using mobile devices or custom coefficients.
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Ruchti, Heinz Gerhard, Device for generating a warning signal, especially for helicopters.
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Barber, Sarah; Seah, Kirschen A., Flight display system with enhanced temporal depiction of navigation information.
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Pautsch, Christian; Wohlers, Wolfgang, Method and system for monitoring of the temperature of the surface of an aircraft.
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Hicks Duane L. (Keller TX) McKeown William L. (Euless TX) Wood Tommie L. (Arlington TX), Tail rotor authority control for a helicopter.
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