Title:
航空機の防除氷用マルチモード発電機
Document Type and Number:
Japanese Patent JP7339787
Kind Code:
B2
Abstract:
On an aircraft, a multi-mode power generator is operated in a variable voltage mode to power an electric Wing Ice Prevention System (eWIPS), and is operated in a fixed voltage mode to provide backup power. When atmospheric conditions are conducive to the formation of ice (and main generators are operative), the multi-mode power generator is operated in variable voltage mode to power the eWIPS with a first or second variable voltage. The first variable voltage, the value of which depends on atmospheric conditions, is for anti-ice operation. The second variable voltage, which can be the maximum output voltage, is for de-ice operation. Transitions between different variable voltage levels are not instantaneous which eliminates fatigue damage due to transients. If a main generator fails (or when atmospheric conditions are not conducive to the formation of ice), the multi-mode power generator is operated in fixed voltage mode to provide backup power.
Inventors:
Jeffrey Jay White
Application Number:
JP2019118650A
Publication Date:
September 06, 2023
Filing Date:
June 26, 2019
Export Citation:
Assignee:
The Boeing Company
International Classes:
B64D41/00; B64D15/12; B64D15/22; H02P9/04
Domestic Patent References:
| JP2003523863A | ||||
| JP2010507526A | ||||
| JP2015054593A |
Foreign References:
| US5344696 | ||||
| US20130033246 | ||||
| US5813630 | ||||
| US20090230239 | ||||
| US6992403 |
Attorney, Agent or Firm:
Hisashi Usui
Minoru Yoshida
Tatsuya Tanaka
Yasumitsu Suzuki
Shintaro Suzuki
Keita Kobuchi
Tomokazu Saito
Minoru Yoshida
Tatsuya Tanaka
Yasumitsu Suzuki
Shintaro Suzuki
Keita Kobuchi
Tomokazu Saito