JASC’s Active Combustion Control Valves were developed to attenuate undesirable pressure pulses within the combustion chamber of a turbine engine. Active Combustion Control Valves are derived from patented JASC Servo Valve Technology that employ a robust and extremely reliable means for metering and modulating fuel flow over a broad range of conditions – all in a relatively compact and light-weight package. Active Combustion Control Valve System high-speed servo valves mounted on a manifold together with amplifier-drivers yields a system which is capable of controlling high-frequency pressure oscillations associated with combustion instabilities in lean-burn combustors and afterburners. Active Combustion Control Valve (ACCV) uses patented JASC clevis-valve technology to achieve a High-Speed Servo-Valve (HSSV) enabling single-port and multi-port (synchronous) flow-based frequency response up to 600 Hz @ <-10 dB.
- Variant of JASC’s 3-Way EHSV to Achieve High-Speed Servo Valve (HSSV)
- Operates on the Principle of Modulating Fuel Pressure Pulses Out of Phase with Combustion Pressure Pulses
- Have Design Leading to 800 Hz and Higher Versions
- Applications Include Both Industrial and Aircraft Turbine Engine
| Specifications | |
|---|---|
| Fuel Media | Most jet-type liquid hydrocarbon fuels found in commercial airline and US military service |
| Demonstrated Response | w/in 5 dB to 550 Hz and w/in 10 Db to 600 Hz using Liquid Fuel in the Lab (Modulation Strength of +/- 20% @ 300 pph) |
| Flow Rate[1] | 20 to 300 pph (TDR=15) @ 100 ±10 PSID |
| Typical Modulation | +/- 50% @ 50 pph; +/- 20% @ 200 pph |
| Frequency Response | 1 dB @ 400 Hz, 0 dB @ 500 Hz |
| Maximum Inlet Pressure[2] | 800 PSIG |
| Fuel Temperature | -65° to +250 °F |
| Filtration | 10 µm nominal, 25 µm absolute (integral to inlet fitting, supplied) |
| Dimensions | 7.5” x 4.5” x 2.5” |
| Product Specifications (High Speed Servo Valve) | |
| Natural Frequency[3] | 400 Hz |
| Coil Excitation | 0 to 600 mA |
| Command Input | 0 to +10 Vdc |
| Power | 30 to +30 Vdc, 1.0 A Max |
| Steady State Flow | Linear with command |
| Weight | approx. 4.5 lb |
| Part Number | 101242 |
| Specifications | Specifications |