Description
Woodward TECJET110
Technical Specifications
- Input Voltage Range: 18–32 Vdc.
- Input Current Range: ≤4.0 A steady state, 13.0 A peak.
- Fuel Gas Inlet Pressure: 50 to 276 mbar gauge (0.73 to 4 psig).
- Inlet to Outlet Delta Pressure: 70 to 276 mbar (1 to 4 psid).
- Gas Filter Requirement: Maximum mesh size of 50 μm in the gas stream.
Functional Features
- Integrated Microprocessor: Converts flow demand signals and gas parameters (inlet pressure, temperature, delta P) into precise valve position settings.
- CAN Bus Communication: Supports bidirectional communication with engine control systems (e.g., EGS02) for rapid response to load changes.
- High Turn-down Ratio: A single valve can accommodate applications ranging from 6 to 20 cylinders.
- Automatic Compensation: Continuously adjusts flow control based on real-time gas pressure and temperature variations.
Application Scenarios
Applied in fixed-site gas engine applications with a power range of 650–2000 kW for low calorific value gases and 1300–3000 kW for pipeline natural gas. Suitable for gases with a specific gravity range of 0.4 to 2.0.
Performance Parameters
- Accuracy: Within ±20% of demand up to 7% of max rated flow; within ±10% from >7% to 25%; and within ±6% above 25% of max rated flow.
- Valve Maximum Geometric Area: 6065 mm² (9.4 in²).
- Steady State Ambient Temperature: –20 to +85 °C.
Material Composition
Constructed with a robust 31 kg (68 lb) cast metal housing, precision internal flow components, and industrial-grade printed circuit boards protected against electrostatic discharge.
Structural Characteristics
- Size: 105 mm nominal valve size.
- Connections: Designed for specific gas inlet/outlet piping and electrical CAN bus/power connections.
- Grounding Lug: Integrated for mandatory earth ground connection.
Working Principle
An independent engine controller calculates the required gas flow and sends the command via CAN bus. The TecJet 110’s internal microprocessor processes this signal alongside real-time inlet pressure, gas temperature, and pressure drop across the valve to dynamically adjust the valve’s internal position, ensuring exact mass flow delivery.
Installation Requirements
Power input wiring must be rated for at least 85 °C. The valve must be grounded to earth ground, and wiring must comply with Division 2 or Zone 2 hazardous area methods.
Precautions for Use
Strictly observe electrostatic discharge (ESD) awareness. When removing the PCB from the control cabinet, place it immediately in an antistatic protective bag to prevent component damage.
