Fluid system is defined as the device in which power is transmitted with the help of fluid which may be liquid or gas under pressure. Most of devices are based on principle of fluid static and fluid kinematics. Hydraulic jack if one type of fluid system.
The basic principle of a hydraulic jack may be explained by the help of fig. Consider a ram and plunger, operating in two cylinders of different diameters, which are interconnected at the bottom, through a chamber, which is filled with some liquid. It is based on Pascal’s law.
When lever is working ,water is contained in casing is forced out of into the portion of the inverted cylinder above ram. Due to pressure, the upward force acts on the inverted cylinder. The cylinder therefore moves up and lifts load placed on the top of casing. There is screw arrangement to take water back from cylinder to the casting and thus lower the load when required.
Watch This video to Know how To make Hydraulic jack From simple Components at Home.
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