Page 30 - PNEUMATIC AND HYDRAULIC
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2.0 COMPONENTS OF HYDRAULIC SYSTEM
Hydraulic systems transfer power by feeding a hydraulic fluid from a closed vessel
with variable displacement to another closed vessel. It’s explained according to
Pascal’s principle. A static fluid in a closed vessel has the following characteristics,
as stated by Pascal’s Principle shown in Figure 2.1.
1. Pressure works on a plane at a right angle
2. Pressure is transmitted equally in all directions.
3. Pressure applied on part of a fluid is transmitted throughout the fluid equally.
Figure 2.1: - Pascal’s Principle [10]
The hydraulic system can be simply shown generally in Figure 2.2. The system
consists of hydraulic pump, motor, accumulator, pressure control valve, flow control
valve, directional control valve, reservoir/tank and actuator.
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