"Hydraulics is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids."
The study of fluids in motion, and how they behave under different conditions and in different systems.
Properties of liquids: Study of properties of fluids such as density, viscosity, pressure, and temperature, which affect the behavior of hydraulic systems.
Pascal's Law: Explanation of how hydraulic systems use Pascal's Law to transfer pressure in a confined space, which is crucial to comprehending hydraulic system design.
Hydraulic pumps: Overview of different kinds of pumps, such as gear pumps, vane pumps, and piston pumps, and how they work to distribute hydraulic fluid into a hydraulic circuit.
Hydraulic valves: Description of various types of hydraulic valves, including directional control valves, proportional valves, check valves, and pressure control valves and their functions.
Hydraulic actuators: Explanation of hydraulic actuators, such as hydraulic cylinders and hydraulic motors, which convert hydraulic energy into mechanical energy.
Hydraulic reservoirs: Introduction to hydraulic reservoirs, which are used to store hydraulic oil, keep it cool, and prevent contamination.
Hydraulic filters: Explanation of hydraulic filters, which are used to remove contaminants from hydraulic oil and maintain the cleanliness of the hydraulic system.
Hydraulic hoses and fittings: Overview of hydraulic hoses and fittings that are used to transmit hydraulic fluid between components of a hydraulic system.
Symbols and standards: Introduction to the symbols and standards used in hydraulic systems, such as DIN, ISO, and SAE, which are essential to interpreting hydraulic schematics.
Troubleshooting: Explanation of how to troubleshoot common hydraulic issues, including loss of pressure, leaks, and overheating in hydraulic systems.
Maintenance: Overview of hydraulic system maintenance procedures, including filter changes, fluid analysis, and inspection of hoses and fittings.
Applications: Introduction to the applications of hydraulic systems in various industries, such as construction, agriculture, and manufacturing, and their significance in modern technology.
Water clock: Is one of the most ancient hydraulic devices known. It used a flow of water, regulated by a float or other mechanisms, to measure time accurately.
Irrigation system: Was developed in ancient Egypt and involved using water from the Nile River to irrigate crops through a series of canals, locks, and levees.
Hydraulic mining: Used water pressure to extract precious metals from underground mines. A technique common in ancient Rome and China, hydraulic mining typically involved directing high-pressure water through narrow channels to break up ore deposits and filter out precious metals.
Water-powered mills: Were the first mechanized mills, and they used water wheels to drive grinding stones and other machines.
Roman aqueducts: Were carefully engineered systems of channels, tunnels, and arches that carried water over long distances into urban areas. These systems were used for public baths, fountains, and irrigation.
Hydraulic elevators: Were used in ancient Greece to lift heavy objects to higher levels using water pressure. The Archimedes screw was one of the earliest examples of a hydraulic elevator.
Hydraulic brakes: An invention in the third century BCE, Archimedes created a hydraulic brake system that was used to stop heavy siege weapons like catapults.
"At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases."
"Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on applied engineering using the properties of fluids."
"In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids."
"Hydraulic topics range through some parts of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry."
"The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue."
"Free surface hydraulics is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, estuaries and seas."
"Its sub-field open-channel flow studies the flow in open channels."
"Hydraulics (from Greek ὕδωρ (hydor) 'water', and αὐλός (aulos) 'pipe')"
"Hydraulics is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids."
"Fluid mechanics provides the theoretical foundation for hydraulics."
"In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids."
"Hydraulic topics...cover concepts such as pipe flow, dam design, fluidics, and fluid control circuitry."
"Free surface hydraulics...occurs in rivers, canals, lakes, estuaries and seas."
"At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases."
"The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue."
"Its sub-field open-channel flow studies the flow in open channels."
"Hydraulics...focuses on applied engineering using the properties of fluids."
"Free surface hydraulics is the branch of hydraulics dealing with free surface flow."
"Hydraulic topics...cover concepts such as pipe flow, dam design, fluidics, and fluid control circuitry."