What component directly increases the pressure in a hydraulic system?

In a hydraulic system, the component that directly increases the pressure is the hydraulic pump. The hydraulic pump is responsible for converting mechanical energy into hydraulic energy by moving fluid from the reservoir and creating pressure. As the pump operates, it forces hydraulic fluid into the system, resulting in an increase in pressure that can be utilized to perform work, such as lifting or moving loads.

While the hydraulic motor, accumulator, and cylinder play important roles in a hydraulic system, they do not directly increase pressure. The hydraulic motor converts hydraulic energy back into mechanical energy, the accumulator stores energy in the form of compressed fluid, and the hydraulic cylinder transforms hydraulic pressure into linear motion. Thus, it is the hydraulic pump that is fundamental for generating the initial pressure required for the entire system to function effectively.