Loading patent…
AssigneeDaimler-Benz Aerospace Airbus GmbH
InventorsMichael Markwart, Klaus Petry, Thomas Scherer
Estimating the term…
An air supply system for an aircraft cabin reduces the concentration of contaminations of the air in the cabin by a flexibly controllable valve system that comprises pairs of valves which on the one hand are ganged to respective air openings. One valve of a pair is connected to a fresh air or mixed air supply line. The other valve of a pair is connected to a suction or exhaust duct. Thus, depending on which valve in a pair is open and which is closed, the respective air opening can function as an air outlet for supply of mixed or fresh air into the cabin or as a suction port. Such a system permits a flexible volume control of the supply of fresh air into selectable cabin sections as well as a flexible volume control for the removal of used air from respective cabin sections. Additionally, it is now possible to increase the size of the non-smoking section at the expense of the smoking section or vice versa simply by a respective valve control.
A ventilating system for a passenger aircraft having a pressurizable body enclosing a cabin having a cabin floor, passenger seats on said cabin floor, a cabin ceiling above said seats, and an underfloor space in said body below said floor, said system comprising a plurality of first air flow openings (12) positioned in said cabin for serving individual passenger seats, a plurality of second air flow openings (13) in said ceiling for serving said cabin, a fresh air supply line (4) and an exhaust line (9) for removing used air from said cabin, a suction fan (10) connected to said exhaust line (9), at least a first pair and a second pair of air flow control valves (14), each pair of said air flow control valves comprising a first valve (14B;
An aircraft comprising an aircraft body enclosing a pressure cabin in said aircraft body and an air exchange system for said pressure cabin, said air exchange system comprising a plurality of air flow openings (12, 13) in said cabin for admitting treated air into said cabin or for removing used air from said cabin through said openings, an air treatment device (2) for providing treated air, an air supply line (4) connected to an outlet of said air treatment device (2), an air exhaust line (9) for removing used air from said cabin, a fan (10) for sustaining an air flow in said air exchange system at a required pressure, at least one pair of flow volume control valves (14A, 14B) arranged in a Y-configuration, said Y-configuration forming a first common port or junction (15) for both valves of a pair connected to a respective one of said air openings (12), a second port (9A), connecting one valve of a pair to said air exhaust line (9), and a third port (4A) connecting the other valve of said pair to said air supply line (4), whereby the supply of treated air or the removal of used air through the same air flow opening is controllable by respectively opening and closing the valves of a pair, said air exchange system further comprising a venturi device (11) connecting an outlet of said fan (10) to the atmosphere for discharging used air to the atmosphere while maintaining a required pressurization in said pressure cabin.
An aircraft comprising an aircraft body enclosing a pressure cabin in said aircraft body and an air exchange system for said pressure cabin, said air exchange system comprising a plurality of air flow openings (12, 13) in said cabin for admitting treated air into said cabin or for removing used air from said cabin through said openings, an air treatment device (2) for providing treated air, an air supply line (4) connected to an outlet of said air treatment device (2), an air exhaust line (9) for removing used air from said cabin a fan (10) for sustaining an air flow in said air exchange system at a required pressure, at least one pair of flow volume control valves (14A, 14B) arranged in a Y-configuration, said Y-configuration forming a first common port or junction (15) for both valves of a pair connected to a respective one of said air openings (12), a second port (9A), connecting one valve of a pair to said air exhaust line (9), and a third port (4A) connecting the other valve of said pair to said air supply line (4), the supply of treated air or the removal of used air through the same air flow opening is controllable by respectively opening and closing the valves of a pair, said aircraft further comprising cabin floor air outlets (5A', 5B'), a further air exhaust line (5) connected to said cabin floor air outlets (5A', 5B') and a further suction fan (3) in said further air exhaust line (5) connected to an inlet of said air treatment device (2) for returning a portion of used air to said air treatment device (2), a tap line (7) connected to said further air exhaust line (5) upstream of said further suction fan (3), and a pressure control valve (8) in said tap line (7) for removing another portion of used air through said pressure control valve (8) to the atmosphere outside said aircraft.
Dependencies are inferred from the claim text.