Hydraulic System Equipment
In a hydraulic system, pressure applied anywhere to a contained, incompressible fluid is transmitted undiminished throughout the fluid. This course covers the purpose and function of the major equipment used in a typical hydraulic system.
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Learning Objectives
• Identify the components of a basic hydraulic system • Describe the common types of hydraulic pumps and their applications • Describe the function of actuating cylinders • Describe the function of accumulators • Describe the function of reservoirs • Describe the function of filters • Describe the function of heating elements and heat exchangers
Specs
| Course Level | Intermediate |
| Languages | English, Portuguese |
| Compatibility | Audio, Video |
| Based on: | Industry Standards and Best Practices |
Key Questions
How do hydraulic pumps work?
Hydraulic pumps displace fluids by applying mechanical force to fluids through the use of gears, screws, pistons, impellers, or vanes.
What is a hydraulic actuating cylinder?
A hydraulic actuating cylinder is a device actuated by hydraulic pressure, typically extending and retracting a piston to open and close a valve or operate an electrical switch in an industrial process.
What are the different types of hydraulic accumulators?
Accumulators are divided into types according to the means used to separate the gas and fluid chambers; these are the diaphragm, bladder, and piston accumulators.
What’s the point of heating hydraulic fluid?
Heating hydraulic fluid prior to operating equipment reduces pump wear, cavitation, and seal failure.
What happens when hydraulic filters become clogged?
In most systems, if the pressure difference across the filter becomes too high, a bypass valve will open. In many systems this activates an indicator alerting the operator that the filter needs attention.
Sample Video Transcript
Double acting actuating cylinders push and pull. They contain a cylinder bore with fluid ports at each end and a piston and rod assembly extending through one end of the cylinder. Pressure from fluid entering through port A, causes the piston to move in one direction and this forces the fluid on the opposite side of the piston, out through port B. When pressure is changed and applied from fluid entering the cylinder bore through B, the piston and rod move in the opposite direction, forcing the fluid in the other chamber, out through port A. A selector valve is usually used to control a double acting actuating cylinder.
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