| 摘要 |
FIELD: aviation.SUBSTANCE: group of inventions relates to adjustment of air pressure in hermetically sealed cabin of aircraft and a system which realises said method. Air pressure in hermetically sealed aircraft cabin is controlled by measuring absolute and excess pressure of air in aircraft cabin and values of mismatch between preset and measured values of relative to atmospheric pressure outside aircraft, measuring rate of change of absolute pressure of air in cabin, an angle of deviation of aircraft control lever, flight altitude is determined and design vertical speed aircraft flight to achieve design altitude through certain time upon deviation of lever, required air pressure value is calculated in cabin and required pressure change rate, advanced air pressure control is carried out in case of pressure variation exceeding permissible value. Pressure regulator comprises a flow part, two working elements in form of a gate, two drive systems with two electric motors each, device of feedback by position of working member with two channels, a unit of pressure sensors with two sensitive elements, resolver, units of control of serviceability, standby channel, two multiplex channel controller, two intellectual channel, control unit, electronic switch, connected in a certain manner.EFFECT: maintaining pressure in hermetically sealed cabin within allowable limits.2 cl, 3 dwg |
