Digital guide
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Woodward 8562-896
Product Overview
A heavy-duty mechanical-hydraulic governor designed for large industrial diesel engines, gas engines, and steam turbines. It uses engine lubrication oil as the power source, requiring no external electrical supply. The unit automatically adjusts fuel rack or steam valve position in response to speed changes, maintaining precise speed regulation under varying load conditions. Its robust cast-iron construction and integrated hydraulic circuitry ensure long-term reliability in high-temperature, high-vibration environments.
Detailed content
Technical Specifications
- Speed Range: 300–1500 RPM (field-adjustable)
- Hydraulic Supply Pressure: 2.1–4.2 bar (30–60 psi) engine oil pressure
- Output Stroke: 38 mm (1.5 inches) maximum linear travel
- Speed Droop: 0–6% adjustable
- Operating Temperature: -30 °C to +85 °C
- Enclosure Material: High-strength cast iron
- Mounting: Direct flange mounting on engine/turbine
- Weight: Approximately 18 kg
Functional Characteristics
- Pure mechanical-hydraulic operation, independent of electrical power
- Adjustable speed droop for stable parallel operation of multiple units
- Built-in hydraulic damping to suppress speed oscillations
- Manual speed adjustment lever for on-site tuning
- Emergency shutdown mechanism for overspeed protection
- Self-contained oil reservoir reduces contamination risk
Application Scenarios
Large marine main engines, industrial diesel power plants, steam turbine generators, mining equipment prime movers, and heavy-duty construction machinery engines.
