Woodward 8516-018
Product Name: TG-13 Series Mechanical-Hydraulic Governor
Product Introduction: A compact, reliable mechanical-hydraulic governor designed for small-bore diesel and gas engines, providing precise speed regulation for generator, pump, and compressor applications. It features a simplified design with fewer moving parts, ensuring low maintenance and long service life in harsh industrial environments.
Detailed content
Technical Specifications:
- Speed Regulation Range: 1800–3600 RPM (adjustable)
- Control Mode: Pure mechanical-hydraulic droop control
- Output Torque: 12 N·m (8.8 ft-lb) maximum
- Hydraulic Fluid: ISO VG 32 hydraulic oil (self-contained reservoir)
- Operating Temperature: -30 °C to +70 °C
- Enclosure: Cast aluminum alloy, NEMA ‘A’ weatherproof rating
- Weight: 0.6 kg
- Shaft Diameter: 18 mm (standard fuel pump connection)
Functional Features:
- Fully mechanical-hydraulic operation (no external power required)
- Flyweight speed sensor directly coupled to engine shaft for accurate monitoring
- Adjustable droop (3–5%) for stable single-unit operation
- Integral mechanical overspeed trip protection (adjustable threshold)
- Compact, lightweight design for easy engine mounting
- Resists vibration, corrosion, and extreme temperatures
- Low maintenance with annual oil change and inspection only
Application Scenarios:
- Small industrial diesel generator sets (30–300 kW)
- Marine auxiliary generator and pump engines
- Agricultural irrigation and farm machinery engines
- Construction machinery prime movers (compact excavators, loaders)
- Remote off-grid power stations with minimal infrastructure












