The Woodward 8516-038 TG-13 is a mechanical-hydraulic droop governor from Woodward's TG series, specifically designed for speed control of diesel engines and industrial turbines. This governor operates on the principle of hydraulic-mechanical feedback, utilizing flyweights to sense speed changes and hydraulic pressure to actuate the fuel control mechanism. The "droop" characteristic allows the governor to reduce speed slightly as load increases, which is essential for stable load sharing when multiple units operate in parallel. Key features include adjustable droop settings, stable operation under transient conditions, and rugged construction suitable for harsh industrial environments. The governor requires no external electrical power, making it ideal for applications where simplicity and reliability are paramount. It is commonly used in power generation sets, marine propulsion systems, and industrial drives where precise speed control and load-sharing capabilities are critical for operational efficiency. The 8516-038 model number indicates specific configuration details tailored to particular applications, ensuring optimal performance and compatibility with target systems.

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