How does the governor boost oil pressure in a constant speed propeller system?

In a constant speed propeller system, the governor plays a crucial role in maintaining the desired propeller speed. It achieves this by sensing the actual propeller speed through a mechanism often linked to the propeller's rotational speed. When the governor detects that the propeller is rotating slower than the set speed, it activates a series of mechanisms to increase the oil pressure in the propeller hub. This increase in oil pressure allows for the adjustment of the blade angle, which can change the thrust produced by the propeller. By sensing the difference between the actual speed and the desired speed, the governor can effectively respond to variations in engine power and load, ensuring efficient and stable operation.

The other choices, such as mechanical adjustments, electrical means, and external compressors, do not capture the essence of how the governor interacts with propeller speed to manage oil pressure effectively. Mechanical adjustments can be part of the system, but they are typically a result of the governor's response to speed rather than a primary function. Similarly, while electrical means could be involved in some advanced systems, the fundamental operation of oil pressure regulation in standard governor systems relies predominantly on the feedback from propeller speed. External compressors do not pertain to the mechanism of a governor in a constant speed