Description
The Woodward 8290-185 is a precision-engineered isochronous speed control module, designed to provide stable and constant engine RPM for gasoline and natural gas prime movers. As a specialized component of the Woodward 8290-185 lineup, this controller is optimized for seamless integration with 524 and 1724 series actuators. By providing consistent governing within a 3000 to 6000 Hz operating range, it ensures high-performance speed regulation in various industrial and power generation environments.
Product Specifications
- Control Type: Isochronous Speed Control
- Engine Compatibility: Gasoline and Natural Gas Prime Movers
- Compatible Actuators: 524 and 1724 Series
- Speed Range: 3000–6000 Hz
- Operating Temperature: -40 °C to +95 °C
- Dimensions: 210 mm × 175 mm × 165 mm (approximate)
- Weight: 4.2 kg
- Country of Origin: United States
Frequently Asked Questions
💡 How does the 8290-185 maintain isochronous speed? This module utilizes a closed-loop control algorithm that continuously monitors the input frequency from the magnetic pickup. It makes real-time adjustments to the actuator output to keep the prime mover locked at the target frequency, eliminating the “speed droop” that occurs as electrical or mechanical loads fluctuate.
🛠 Why is this model restricted to the 3000–6000 Hz range? The frequency range is matched to the resolution of the engine’s speed-sensing gear. Operating within this specific bandwidth allows the internal processors to achieve the highest possible signal-to-noise ratio, which is vital for the smooth, jitter-free performance required in gas-fueled applications.
⚡ Can this controller be used with actuators other than the 524 or 1724 series? The 8290-185 is factory-tuned to match the electrical impedance and response dynamics of the 524 and 1724 actuators. Using mismatched hardware can lead to improper throttle damping, potentially causing the engine to hunt or oscillate under load.
🔋 What is the primary benefit of this model for natural gas engines? Natural gas prime movers often require extremely fast throttle response to manage fuel-air mixture changes. The 8290-185 is designed to handle these transient demands efficiently, ensuring that the engine remains stable even when transitioning rapidly between load states.
Recommended Woodward Actuator Series Models
- 8256-010 (Clockwise Rotation)
- 8256-011 (Counter-Clockwise Rotation)
- 8256-016 (Standard EPG Actuator)
- 8256-017 (Compatible EPG Actuator)
- 8256-021 (Compatible EPG Actuator)
- 8256-022 (Compatible EPG Actuator)
- 8256-032 (Load-Sharing Actuator)
- 8256-080 (CCW with Spring Return)
- 8256-087 (Sealed Position Feedback)
