Inlet Guide Vane Actuator (IGVA)

Inlet Guide Vane Acuator

The Inlet Guide Vane Actuator (IGVA) has a direct acting, 3-way clevis-type, servo valve used for actuation with an LVDT to provide position feedback. The servo valve fueldraulically drives the actuator rod. The Inlet Guide Vane Actuator is mounted on an aircraft Auxillary Power Unit (APU) and used to control the position of a load compressor’s inlet guide vanes. The IGVA has a low hysteresis and threshold with low electrical power consumption.

Specifications

Electrical Characteristics 
Servo 
Input Current0-100 mA
Input Voltage0-15 VDC
Resistance75 +/- 15 OHMS at 70°F
Threshold0.2 mA
  
LVDT 
Voltage3.535 VRMS +/- 5%
Frequency3000 +/- 20 HZ
Wave FormSine
Apparent Power.027 VA max
Input Impedance500 OHMS Min.
Output Impedance150 OHMS Max.
Dielectric1060 +/- 10 FRMS at 60 HZ
Insulation Resistance40 MEG Ohms min @500 +-10 VDC
  
Temperature 
Fuel-67°F to 250°F
Ambient-67°F to 392°F
  
Supply Pressure 
Operating350-375 PSID across supply and return
Supply Max1500 PSIG
Proof2250 PSIG
Burst2250 PSIG
  
Rod Force/No Load Slew Max Flow150 lbs 5 in/sec
2.5 GPM
  
Leakage 
ExternalNone
Internal0.3 gpm max @ 175 PSID from P to C and from C to R ports
  
MediaMIL-PRF-7024
  
Integral Filtration10 Micron nominal, 25 micron absolute at -06 supply return ports
Construction MaterialsHigh Nickel-Iron, Aluminum alloy, chrome
Weight4 lbs
Part Number101379-4