Integrated environmental control system and humidification system
AssigneeAlliedSignal Inc.
InventorsRon Crabtree, Jim Beals, Gary Kumagai, Robert Tom, Stan Pollitt
Life of this patent
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Abstract
In an aircraft, tap water is filtered, vaporized and injected into a trim line of an environmental control system. Filtering is performed by a reverse osmosis filter. Hot, humidified air leaving the trim line is supplied to a cabin of the aircraft.
Claims13
An integrated system for an aircraft cabin, comprising;
- an environmental control system including a trim line for passing bleed air from a bleed air source to the cabin;
- a humidification system including a reverse osmosis filter, a pump for controllably pumping water through the reverse osmosis filter, and means for adding the water filtered by the reverse osmosis filter into the trim line;
- a temperature control valve for controlling an amount of bleed air flowing through the trim line to the cabin;
- sensor groups located within the cabin;
- and
- a controller responsive to the sensor groups for controlling speed of the pump and set point of the temperature control valve to control humidity within the cabin.
A method of increasing humidity of air inside a cabin of an aircraft, the aircraft Including an environmental control system, the environmental control system including a trim line for passing bleed air from a bleed air source to the cabin, and a temperature control valve for controlling an amount of bleed air flowing through the trim line to the cabin, the method comprising:
- pumping water through a reverse osmosis filter;
- sensing parameters within the aircraft;
- controlling speed of the pump to adjust the amount of water pumped through the reverse osmosis filter;
- vaporizing water filtered by the reverse osmosis filter;
- injecting the vaporized water into the trim line of the environmental control system;
- and
- controlling set point of the temperature control valve to control an amount of bleed air flowing through the trim line to the cabin;
- the pump speed and the set point controlled in response to the sensed parameters.
Dependencies are inferred from the claim text.