How Does a Hydraulic Jack Work?

How does the hydraulic jack work?

• But how does the hydraulic jack, the lever, the small piston, the valves, the oil tank, and the traveling piston when the jack is placed under a car and the lever is activated manually the movement of the lever transmits the force goes through the liquid and results in a small movement of the plunger.
• Of the small piston that in turn gives rise to an even smaller movement of the piston of travel said movement might be slight but the force it produces is immense and allows even a car to lift but how it works to discover it.

What liquid is thrown to the hydraulic jack? 

• It is a special oil for hydraulic jacks. 
• When the lever is pulled the lower piston rises upwards and as this movement proceeds a small amount of oil from the reservoir enters the outlet valve and passes to the reservoir of said piston.
• When the lever descends push the plunger down and thanks to the mechanical power of the lever the task will be much easier, the lever is a very simple device that multiplies the force that is applied without added effort.
• As the lever measures, 45 centimeters the outermost part will travel a greater distance than the piston of the small piston and that increases the force that pushes the plunger down as the greater the distance, the greater the force and the easier the work.
• The lever is pushed down and this, in turn, pushed the small piston that pushes the oil into the lower cavity the oil by its nature never stops moving and like all liquids cannot be compressed.
• So when it is pushed to the oil, it transfers the force applied to it by pushing it around it, and in this particular case downwards the first outlet valve prevents it from returning to the tank.
• The second outlet valve allows it to pass into a cavity below the floor where it will travel where the hardest work will be done. 
• The oil pushes on the entire surface with the same force per unit area and therefore pushes the piston stroke up with the same force per unit area that had previously applied the piston of the other piston.
• But as the surfaces 23 times larger in this piston of travel the force is now 23 times higher however there is another small readjustment the distance that the piston can travel on each occasion will be affected.
• If the force is 23 times greater, the distance to be reached is 23 times smaller, so for every two centimeters that the plunger of the floor travels, a small travel piston will only rise one millimeter 23 times less to be exact.
• This means that you will have to pull the bench many times to get the car lift everything you want when the work is done, a valve located at the base of the jack is released, the traveling piston falls and the oil returns to the tank.
• In this way everything is ready to start again the hydraulic jack uses the liquid to lift heavy objects, like the shuttle of space shuttles, thanks to the use of hydraulics 
• This cat can turn a normal person into a superhero as it multiplies its force by 350, and for this only some oil is needed a lever and a light manual work, this device achieves a great strength with little effort. 
• How interesting that this small device although it is not a great technology, it is useful for many things

Safety when using a hydraulic jack

1. The capacity of the cat must be greater than the load you wish to lift.
2. It is essential to place it on a flat surface so that the load does not fall.
3. It is advisable to keep the jack lubricated and if it is dripping it should NOT be used.
4. Do not lift the load higher than necessary.
5. It is essential to stand aside when you are being lifted to avoid a possible accident.
6. Once you have finished lifting the load, you must remove the lever from the jack to avoid tripping over it and having an accident.