PRESSURE CONTROL SYSTEM AND METHOD FOR AN AIRCRAFT SEAT

A pressure control system (120) for an aircraft seat includes a base plate (112) and a plurality of cells (104) attached to the base plate, each cell having a bellows (106) and a top diaphragm (108) and defines a pressure chamber (114) therein. Charging apertures (116) are formed in the base plate such that each cell has an associated charging aperture such that each charging aperture is in fluid communication with a pressure chamber. Discharging apertures (118) are formed in the base plate such that each cell has an associated discharging aperture such that each discharging apertures is in fluid communication a pressure chamber. A charging valve (134) and a discharging valve (140) is in fluid communication with the pressure chambers and configured to supply or extract air to or from the chambers through the apertures. A pump (122) is configured to supply pressurized air to the at least one charging valve.