Description
The Woodward 8290-051 is a specialized controller within the Electrically Powered Governor (EPG) series, engineered for high-precision isochronous speed regulation. Designed to maintain a constant engine speed regardless of load variations, this module is perfectly suited for gas and gasoline engine applications requiring superior stability. As a core component of the Woodward 8290-051 series, this unit provides the responsive signal processing necessary to drive fuel control systems within an elevated frequency range.
Product Specifications
- Operating Voltage: 12 VDC
- Speed Range: 6000–12000 Hz
- Control Type: Isochronous Speed Control
- Engine Compatibility: Gasoline and Gas Engines
- Mounting Style: Flange Mount
- Operating Temperature: -40 °C to +95 °C
- Dimensions: 185 mm × 150 mm × 140 mm (approximate)
- Weight: 3.7 kg
- Country of Origin: United States
Frequently Asked Questions
💡 What does “Isochronous” mean in the context of this speed controller? Isochronous control ensures the engine maintains a constant speed under varying load conditions. Unlike “droop” control, which allows speed to fluctuate based on load, this model actively corrects fuel delivery to keep the engine locked to the setpoint frequency.
🛠 Why is this model designed for the 6000-12000 Hz range? This range is tailored for high-speed engines or setups utilizing a high-tooth-count gear for the magnetic pickup (MPU). The 8290-051’s input circuitry is specifically tuned to filter and process these higher-frequency pulses, ensuring clean, jitter-free speed readings.
⚡ Can I use this 12-volt controller on a 24-volt electrical system? No. This unit is explicitly built for 12-volt DC power. Attempting to power this device with a 24-volt supply will exceed the rated voltage for the internal components, leading to catastrophic failure of the governor electronics.
🔋 What is the primary benefit of using this model for gas/gasoline engines? Gas engines often require rapid corrections to fuel-air mixtures to maintain stability. The isochronous nature of the 8290-051 allows it to respond instantly to transient load changes, making it ideal for applications where steady frequency is critical for equipment operation.
Recommended Woodward Actuator Series Models
- 8256-010 (Clockwise Rotation)
- 8256-011 (Counter-Clockwise Rotation)
- 8256-016 (Standard EPG Actuator)
- 8256-021 (Compatible EPG Actuator)
- 8256-032 (Load-Sharing Actuator)
- 8256-080 (CCW with Spring Return)
- 8256-087 (Sealed Position Feedback)
- 8270-1002
- 8270-1003
- 8290-001
