Product Overview

The 8901-037 (Model: 8901-037) is a specialized single-cylinder booster servomotor engineered to provide instantaneous pressurized oil to mechanical-hydraulic governors and electro-hydraulic actuators. In 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 eliminates delayed fuel delivery and ensures a smooth, reliable engine ignition cycle.

Unlike purely electronic modules, the 8901-037 (Model: 8901-037) serves as a mechanical-hydraulic interface, often triggered by 24V DC control logic. It is designed to deliver a concentrated burst of hydraulic energy to overcome 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.

Detailed Technical Specifications

The 8901-037 is constructed with industrial-grade corrosion-resistant alloys to withstand extreme engine-room temperatures and high-vibration environments.

• Manufacturer: Woodward

• Model Number: 8901-037

• Product Type: Single-Cylinder Booster Servomotor

• Control Voltage: 24V DC (Solenoid operated)

• Function: Instantaneous oil pressure supply for governor startup

• Output Torque Range: 0.5 Nm to 2.5 Nm

• Maximum Operating Pressure: Designed to match standard Woodward governor requirements

• Operating Speed Range: 0 to 3000 RPM (Mechanical interface)

• Operating Temperature: –40°C to +85°C

• Dimensions: 100 mm $\times$ 50 mm $\times$ 20 mm

• Net Weight: 0.95 kg (2.1 lbs)

• Construction: High-strength, corrosion-resistant alloy housing

• Compatibility: Compatible with Woodward UG, 3161, and PG series mechanical-hydraulic governors

Industrial Application Scenarios

The 8901-037 (Part Number: 8901-037) is essential for high-inertia startup applications:

• Emergency Diesel Generators (EDG): Ensuring rapid startup for standby power in hospitals and data centers.

• Marine Propulsion Engines: Facilitating reliable ignition for main engines in offshore vessels and tankers.

• Remote Power Plants: Providing dependable starting in unmanned stations where manual priming is not possible.