Title:
圧力監視によるファンパラメータの決定
Document Type and Number:
Japanese Patent JP2013530331
Kind Code:
A
Abstract:
A method for determining the speed of at least one rotating fan, such as a propeller, through sensing pressure waves generated by the blades of the fan. An apparatus operable to execute the method is also disclosed. The apparatus includes a fan having a hub portion and a plurality of blades extending radially outward from the hub portion. The apparatus also includes an engine operable to rotate the fan about an axis of rotation. The apparatus also includes a sensor spaced from the fan along the axis of rotation. The sensor is positioned to sense at least one physical condition that is external of the engine and is changed by rotation of the plurality of blades. The sensor is operable to emit a signal corresponding to at least one physical condition. The apparatus also includes a processor operably engaged with the engine and the sensor. The processor is operable to receive the signal from the sensor and change the operation of the engine in response to the signal to change a speed of the fan.
Inventors:
James Ernst
Gizzo, Claudio
Collins, Sean Thomas
Gizzo, Claudio
Collins, Sean Thomas
Application Number:
JP2013500153A
Publication Date:
July 25, 2013
Filing Date:
March 15, 2011
Export Citation:
Assignee:
Rolls-Royce Corporation
International Classes:
F02C7/00; B64C11/30; B64C11/48; F01D25/00; F02C9/00; F02K3/062
Domestic Patent References:
| JP2008082339A | 2008-04-10 | |||
| JPH02267325A | 1990-11-01 |
Foreign References:
| US4967550A | 1990-11-06 | |||
| WO2009086358A1 | 2009-07-09 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Hiroyuki Tomita
Osamu Hoshino
Yasuko Tagami
Yasushi Kobayashi
Hiroyuki Tomita
Osamu Hoshino
Yasuko Tagami