In an internal-gear pump, which gear is considered the driving gear?

In an internal-gear pump, which gear is considered the driving gear?

• A. The external gear
• B. The internal gear
• C. The driven gear
• D. The output gear

Answer: (A)

In an internal-gear pump, the external gear is considered the driving gear because it is responsible for providing the power to move the liquid through the pump. The external gear typically rotates first, and as it turns, it engages with the internal gear, which is positioned within it. This interaction causes the internal gear to rotate, allowing the pump to create suction and discharge fluid efficiently. The external gear drives the internal gear by meshing with its teeth, facilitating the movement of fluid as the gears rotate. This configuration is critical for the pump function, as the driving gear’s motion is what sets the entire process in action, enabling the pump to effectively transfer hydraulic fluid or other liquids. Recognizing the roles of each gear in this mechanism is essential for understanding the operation and design of internal-gear pumps, which are commonly used in various industrial applications.

In an internal-gear pump, the external gear is considered the driving gear because it is responsible for providing the power to move the liquid through the pump. The external gear typically rotates first, and as it turns, it engages with the internal gear, which is positioned within it. This interaction causes the internal gear to rotate, allowing the pump to create suction and discharge fluid efficiently.

The external gear drives the internal gear by meshing with its teeth, facilitating the movement of fluid as the gears rotate. This configuration is critical for the pump function, as the driving gear’s motion is what sets the entire process in action, enabling the pump to effectively transfer hydraulic fluid or other liquids.

Recognizing the roles of each gear in this mechanism is essential for understanding the operation and design of internal-gear pumps, which are commonly used in various industrial applications.