The Inlet Guide Vane Actuator (IGVA) is a direct acting 3-way clevis type, servo valve, used for actuation as well as an LVDT to provide position feedback. The actuator is mounted on an aircraft Auxillary Power Unit (APU) and used to control the position of a load compressor’s inlet guide vanes. This Inlet Vane Actuator (IGVA) incorporates the innovative direct acting clevis type of valve to designed to fueldraulically drive the actuator rod. The IGVA has a low hysteresis and threshold with low electrical power consumption.
Specifications |
|
|---|---|
| Electrical Characteristics | |
| Servo | |
| Input Current | 0-100 mA |
| Input Voltage | 0-15 VDC |
| Resistance | 75 +/- 15 OHMS at 70°F |
| Threshold | 0.2 mA |
| LVDT | |
| Voltage | 3.535 VRMS +/- 5% |
| Frequency | 3000 +/- 20 HZ |
| Wave Form | Sine |
| Apparent Power | .027 VA max |
| Input Impedance | 500 OHMS Min. |
| Output Impedance | 150 OHMS Max. |
| Dielectric | 1060 +/- 10 FRMS at 60 HZ |
| Insulation Resistance | 40 MEG Ohms min @500 +-10 VDC |
| Temperature | |
| Fuel | -67°F to 250°F |
| Ambient | -67°F to 392°F |
| Supply Pressure | |
| Operating | 350-375 PSID across supply and return |
| Supply Max | 1500 PSIG |
| Proof | 2250 PSIG |
| Burst | 2250 PSIG |
| Rod Force/No Load Slew Max Flow | 150 lbs 5 in/sec 2.5 GPM |
| Leakage | |
| External | None |
| Internal | 0.3 gpm max @ 175 PSID from P to C and from C to R ports |
| Media | Liquid Fuels IAW MIL-PRF-7024 and ES 2069 |
| Integral Filtration | 10 Micron nominal, 25 micron absolute at -06 supply return ports |
| Construction Materials | High Nickel-Iron, Aluminum alloy, chrome |
| Weight | 4 lbs |
| Part Number | 101379-4 |
