Hydraulic Elevator

The hydraulic lift is an elevator which is operated by fluid pressure generated by a suitable fluid. It is used to raise automobiles in service stations and garages. In a hydraulic lift, two pistons are separated by the space filled with liquid.Hydraulic lifts work on a basic principleA hydraulic lift is a device for moving objects using force created by pressure on a liquid inside a cylinder that moves a piston upward. Incompressible oil is pumped into the cylinder, which forces the piston upward. When a valve opens to release the oil, the piston lowers by gravitational force. to go up, a pump pushes oil into the cylinder, pushing the piston (which pushes the lift car) up. To go down, the valve opens and oil is allowed to flow back into the reservoir, and is pushed back using the gravitational force of the lift car.