On what component does the hydraulic fluid pressure entering an internal gear motor act upon?

The hydraulic fluid pressure entering an internal gear motor acts primarily on the gear teeth. In an internal gear motor, the design incorporates a set of internal and external gears that mesh together. When pressurized hydraulic fluid is introduced, it exerts force on the gear teeth of the internal gear. This force is what drives the motor and causes the gears to rotate, which ultimately translates into mechanical work.

The interaction between the fluid and the gear teeth is critical for the functionality of the motor, as it relies on this pressure to create torque and motion. The efficiency and output of the motor depend greatly on how effectively this pressure is utilized at the teeth of the gears. Understanding the dynamics at play between the fluid pressure and the gear teeth is essential for troubleshooting and optimizing the performance of hydraulic systems featuring internal gear motors.