The function of the core inlet guide vane (CIGV) actuator is to mechanically position the inlet guide vanes when commanded by the full authority digital engine control (FADEC). During normal operation, the actuators are modulated according to the FADEC based upon feedback from the master’s linear variable differential transformer (LVDT) signal. Typically, there are two types of CIGV actuators, master and slave. The master is the only one that contains an electro hydraulic servo valve (EHSV) and a LVDT position sensor provides electrical feedback to the FADEC.
The dual-wall transfer tube is designed for use in aircraft fuel system applications to connect two or more fuel tanks or subsystems and convey the system fluid from one tank subsystem to another, providing radial and axial movements or offsets between the connecting ends of the fuel tanks.
In today's commercial and military aircraft auxiliary fuel tank systems, the fuel tank storage volume or the number of the fuel tanks are designed according to the distance to the destination or extending flight hours. The purpose of the dual-wall transfer tube is to connect aircraft auxiliary fuel tanks and transfer fuel from one tank to another during flight.
The use of traditional connection methods such as tubing, hose, and bellows is constrained on aircraft due to the limited connection space between the fuel tanks; the large diameter of the flow passage; and the large radial and axial movements caused by the manufacturing tolerances of the fuel tank equipment and dynamic environment during flight. The dual-wall transfer tube is designed to overcome these installation and flight conditions and to endure the harsh environment of modern airplane auxiliary fuel tank systems.
The dual-wall transfer tube is typically adapted to specific platform applications and interface connections (flange mounting configurations). This product qualification is based on specific platform installation and performance requirements.

The function of the core inlet guide vane (CIGV) actuator is to mechanically position the inlet guide vanes when commanded by the full authority digital engine control (FADEC). During normal operation, the actuators are modulated according to the FADEC based upon feedback from the master’s linear variable differential transformer (LVDT) signal. Typically, there are two types of CIGV actuators, master and slave. The master is the only one that contains an electro hydraulic servo valve (EHSV) and a LVDT position sensor provides electrical feedback to the FADEC.
The dual-wall transfer tube is designed for use in aircraft fuel system applications to connect two or more fuel tanks or subsystems and convey the system fluid from one tank subsystem to another, providing radial and axial movements or offsets between the connecting ends of the fuel tanks.
In today's commercial and military aircraft auxiliary fuel tank systems, the fuel tank storage volume or the number of the fuel tanks are designed according to the distance to the destination or extending flight hours. The purpose of the dual-wall transfer tube is to connect aircraft auxiliary fuel tanks and transfer fuel from one tank to another during flight.
The use of traditional connection methods such as tubing, hose, and bellows is constrained on aircraft due to the limited connection space between the fuel tanks; the large diameter of the flow passage; and the large radial and axial movements caused by the manufacturing tolerances of the fuel tank equipment and dynamic environment during flight. The dual-wall transfer tube is designed to overcome these installation and flight conditions and to endure the harsh environment of modern airplane auxiliary fuel tank systems.
The dual-wall transfer tube is typically adapted to specific platform applications and interface connections (flange mounting configurations). This product qualification is based on specific platform installation and performance requirements.