Description
Woodward PG-PL-29 (8577-613)
Technical Specifications
- Part Number: 8577-613.
- Type: Mechanical-Hydraulic Governor.
- Actuator Compatibility: Direct drive or hydraulic servo actuator.
- Speed Regulation: Isochronous or droop.
Functional Features
- Proven Reliability: Decades of proven performance in critical applications.
- Mechanical Overspeed: Built-in mechanical flyweight overspeed trip.
- Simple Maintenance: Straightforward mechanical adjustment and calibration.
- Versatility: Compatible with various engine and turbine types.
Application Scenarios
Extensively applied in standby diesel generators, mechanical drive pumps, compressors, and marine auxiliary engines.
Performance Parameters
- Speed Drop: Adjustable from 0% (isochronous) to 5% (droop).
- Response: Stable mechanical-hydraulic response.
Material Composition
Precision-machined steel and cast iron components with high-quality hydraulic seals.
Structural Characteristics
Compact mechanical assembly with external speed setting and droop adjustment screws.
Working Principle
Mechanical flyweights sense engine speed changes and move a pilot valve. This directs hydraulic oil pressure to an actuator, which adjusts the fuel rack or steam valve to restore the set speed.
Installation Requirements
Mount securely to the engine gear train. Ensure proper linkage alignment to prevent binding and wear.
Precautions for Use
Maintain clean hydraulic oil to prevent pilot valve sticking. Regularly test the mechanical overspeed trip to ensure safety.
