The 8901-037 (Model: 8901-037) is a specialized single-cylinder booster servomotor designed to provide instantaneous pressurized oil to mechanical-hydraulic governors and electro-hydraulic actuators. In the context of large-scale engine and turbine starting sequences, the 8901-037 (Part Number: 8901-037) plays a vital role by ensuring that the governor has sufficient hydraulic pressure to control the fuel rack the moment starting air is applied. This prevents delayed fuel delivery and ensures a smooth, reliable engine ignition cycle.
Unlike standard electronic modules, the 8901-037 (Model: 8901-037) is a mechanical-hydraulic interface often paired with 24V DC control logic. It is engineered to deliver a concentrated burst of hydraulic energy, overcoming the initial stiction and inertia of large fuel control linkages. This booster is a critical component for mission-critical power generation and marine propulsion systems where rapid, "first-time" starting is essential for system integrity and emergency readiness.
The 8901-037 (Model: 8901-037) is built to withstand extreme engine-room temperatures and high-vibration environments.
| Feature | Details |
| Manufacturer | Woodward |
| Model Number | 8901-037 |
| Product Type | Booster Servomotor (Single Cylinder) |
| Supply Voltage | 24V DC |
| Output Torque Range | 0.5 Nm to 2.5 Nm |
| Operating Speed Range | 0 to 3000 RPM |
| Function | Pressurized oil supply for governor startup |
| Operating Temperature | –40°C to +85°C |
| Dimensions | 100 mm $\times$ 50 mm $\times$ 20 mm |
| Weight | 0.95 kg ( 2.1 lbs) |
| Construction | Industrial-grade corrosion resistant alloy |
| Compatibility | Mechanical-Hydraulic Governors / Electro-Hydraulic Actuators |
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