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The Woodward 8290-185 is a high-efficiency Electrically Powered Governor (EPG) designed specifically for natural gas or gasoline engines used in industrial power generation, oil and gas, and mobile equipment applications. This governor eliminates the need for hydraulic or mechanical drives, providing a compact and cost-effective method of precise engine speed regulation. The 8290-185 is highly applicable in industrial automation and control systems where reliable, isochronous speed control, load sharing, and start-fuel limiting are essential to optimize engine performance and emissions during starting and running conditions.
The 8290-185 operates on a 24 VDC input voltage with a power consumption of up to 95W, making it suitable for standard industrial power supplies. Its control range spans from 3000 to 6000 Hz, accommodating a broad set of engine types and speeds. Notably, the governor supports isochronous speed control, which maintains a constant speed regardless of load variations. This function is critical for prime movers in power generation where steady output frequency is mandatory. The model also features switch-selectable dual dynamics, which optimize control response for transient load changes, minimizing overshoot and oscillations. A built-in start fuel limit helps prevent excessive smoke and fuel wastage during engine startup, enhancing environmental compliance and fuel efficiency.
Key technical parameters include:
| Parameter | Value |
|---|---|
| Model | 8290-185 |
| Brand | Woodward |
| Product Type | Electrically Powered Governor (EPG) |
| Voltage Supply | 24 VDC (20-32 VDC operating range) |
| Power Consumption | Up to 95 W |
| Speed Range | 3000 to 6000 Hz |
| Magnetic Pickup Voltage | Minimum 1.5 Vrms |
| Control Type | Isochronous speed control |
| Temperature Range | -40°C to +75°C |
| Start Fuel Limit | Adjustable via internal potentiometer |
| Certifications | Compliant with EU Directives |
- 8290-185
Its rugged, vibration-resistant aluminum construction and broad operating temperature range (-40°C to +75°C) make it well-suited to harsh industrial environments. The 8290-185 supports popular fuel actuators such as the Woodward 524 and 1724 series, providing up to 2.3 Joules of torque for robust fuel linkage control without hydraulic fluids.
Woodward’s 8290-185 is a preferred choice for industrial and mobile applications needing dependable, advanced speed regulation without complex hydraulic setups. It integrates well into existing control architectures enabling operators to maintain consistent engine speed and performance while minimizing maintenance and operational costs.
Related Woodward products include variants like the 8290-184 for diesel or turbine engines, 8290-187 for gasoline engines without start fuel limiting, and other Electromechanical Powered Governor (EPG) series models designed for different power and fuel system configurations.
Installation recommendations emphasize secure engine mounting to minimize vibration effects and proper wiring following Woodward specifications to ensure stable electrical and control signal performance. Maintenance routines typically involve visual inspection of connections, potentiometer adjustments for fine-tuning control parameters, and verifying magnetic pickup signals.
