Title:
機室圧力を制御する制御装置、機室圧力調整システムと方法
Document Type and Number:
Japanese Patent JP3647844
Kind Code:
B2
Abstract:
The present invention relates to a controller (11), a cabin pressure control system (10) and a method for controlling pressure in a cabin (30), especially an aircraft cabin. In accordance with the invention the controller (11) comprises a channel (15, 16) and a pressure differential safety function (22). The channel (15; 16) calculates a first output signal (40) for actuating an overflow valve (17) in a closed loop control based on the pressure differential between the cabin (30) and the atmosphere and additional critical parameters. The safety function (22) calculates a second output signal (41) based only on the pressure differential. The two output signals (40, 41) are compared, and the second output signal (41) is selected, if said first output signal (40) is found inaccurate. The safety function (22) assures operation of the outflow valve (17) even it the channel (15; 16) is out of function. Accordingly, the number of additional safety valves (18) may be reduced so that the weight of the system (10) is minimized. A manual control panel (26) is provided for backup.
More Like This:
| WO/2016/200914 | UNEQUAL BLEED FLOW |
| JPS5417298 | CONTROLLING DEVICE AND METHOD OF PRESSURIZING AIRCRAFT |
| WO/2005/000675 | FULLY INTEGRATED AIRCRAFT CABIN PRESSURE CONTROL SYSTEM VALVE |
Inventors:
Petri, Bernhard
Felsch, Christian
Fight, Albrecht
Runkel, Lars
Felsch, Christian
Fight, Albrecht
Runkel, Lars
Application Number:
JP2002513765A
Publication Date:
May 18, 2005
Filing Date:
July 18, 2001
Export Citation:
Assignee:
Nord-Micro Actien Gezel Shaft Und Compani Offene Handels Gezel Shaft
International Classes:
B64D13/04; (IPC1-7): B64D13/04
Domestic Patent References:
| JP62137299A | ||||
| JP7069298A |
Foreign References:
| US4164899 | ||||
| US4553474 | ||||
| US5520578 |
Attorney, Agent or Firm:
Iwao Yamaguchi