AIRCRAFT PNEUMATIC SYSTEM

An aircraft pneumatic system (1) including a pneumatic actuator (20) arranged to operate at a pressure value at least equal to a pressure threshold, a line (30) fluidly connected between a pneumatic source (10) and the pneumatic actuator (20), and a venturi (40) disposed upstream of the line (30) an...

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Bibliographische Detailangaben
Hauptverfasser:	OLVER, Bryan W, STINA, Nick, ALECU, Daniel
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIRCRAFT ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT AVIATION COSMONAUTICS EQUIPMENT FOR FITTING IN OR TO AIRCRAFT FLYING SUITS MEASURING PARACHUTES PERFORMING OPERATIONS PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR TRANSPORTING
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Beschreibung
Zusammenfassung:	An aircraft pneumatic system (1) including a pneumatic actuator (20) arranged to operate at a pressure value at least equal to a pressure threshold, a line (30) fluidly connected between a pneumatic source (10) and the pneumatic actuator (20), and a venturi (40) disposed upstream of the line (30) and downstream of the pneumatic source (10). The venturi (40) is configured to receive a source flow (16) from the source (10) at a mass flow rate, the mass flow rate being between a lower, nominal flow rate value and a higher, graded flow rate value. The venturi (40) is sized such that when the mass flow rate is at the nominal flow rate value, a line pressure inside the line (30) corresponds to a source pressure upstream of the venturi (40), and when the mass flow rate to the venturi (40) is at the graded flow rate value, the line pressure is less than the source pressure.