JASC
Inlet Guide Vane Actuator (IGVA)
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JASC Inlet Guide
Vane Actuator (IGVA)
(click for larger image)
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JASC
Inlet Guide Vane Actuator Description
The IGVA features JASC's 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 Auxiliary Power
Unit (APU) and is used to control the position of a load compressor's
inlet guide vanes. This actuator incorporates JASC's innovative
direct acting clevis type valve to fueldraulically drive the actuator
rod.
Benefits
and Features
*Direct Acting Clevis Servo Valve
*Permanent Magnet Torque Motor
*Low Hysteresis and Threshold
*Low Electrical Power Consumption (1 Watt Maximum)
*Dry Coil Torque Motor
Construction
Materials
*High Nickel-Iron Magnetic Path for Low Magnetic Hysteresis
*Aluminum Alloy Housing for lightweight
*Filled Teflon Rod Seals with Interstitial Drain
*Single Electrical Connector
*Chrome Plated Piston Rod with Rod End Bearing
*Fluorosilicone Static Seals (other seal materials available for
specific applications)
Product
Specifications
| Temperature |
Fuel:
-67 ºF to 250 ºF
Ambient: -67 ºF to 392 ºF
|
Supply Pressure |
Operating:
350-375 psid across supply and return
Supply Max: 1500 psig
Proof: 1500 psig
Burst: 2250 psig
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|
Rod Force/No Load Slew Rate/Max. Flow: |
150
lbs. |
5
in/sec. |
2.5
GPM |
| Leakage |
External:
None
Internal: 0.3 gpm max at 175 psid from P to C and from C
to R ports.
|
| Weight |
4.0
lbs max.
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| Integral
Filtration |
10
micron nominal, 25 micron absolute at the –06 supply
and return ports
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| Electrical
Characteristics |
Servo:
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Input
Current: 0-100 mA
Input Voltage: 0-15 VDC
Resistance: 75 ± 15 ohms at 70 ºF
Threshold: 0.2 mA
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LVDT:
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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.
Phasing: With the black and blue leads common, red shall
be in phase with yellow as the LVDT is extended past null.
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Dielectric:
1060 ± 10 VRMS at 60 Hz
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Insulation
Resistance: 40 meg ohms min. at 500 ± 10
vdc
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Bonding:
10 milliohms max.
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