The working principle of the hydraulic cylinder

Working principle of the hydraulic cylinder is: talk about how it works I'll say it's the most basic components, cylinder and the cylinder piston and piston rod sealing device buffer device exhaust each cylinder work are almost similar, I took a hand jack to its original work, jack also is actually a simple cylinder. By manual pressurization stem ( Hydraulic manual pump) Make hydraulic oil through a one-way valve into the cylinder, then into the cylinder of the hydraulic oil, because of the single valve can't back, forcing cylinder rod up, and then work continue to make the hydraulic oil into the hydraulic cylinder, thus constantly on the rise, will send when they open the hydraulic valve, hydraulic oil back to tank. This is the most simple work originally, the other is based on the improved, in the interest of time I said the most simple