Hydraulic Jack

Pascal’s Law:  

Pascal's law or the Principle of transmission of fluid-pressure states that "pressure exerted anywhere in a confined incompressible fluid is transmitted equally in all directions throughout the fluid such that the pressure ratio (initial difference) remains the same.

If F is the magnitude of the normal force on the piston and A is the surface area of a piston, then the pressure, P, of the fluid at the level to which the device has been submerged as the ratio of the force to area.

P=F/A

Since the pressure is force per unit area, it has units of N/m² in the SI system. Another name for the SI unit of pressure is Pascal (Pa)

1 Pa=1N/M2

An important application of Pascal's law is the hydraulic jack

A force F₁ is applied to a small piston of area A₁. The pressure is transmitted through a fluid to a larger piston of area A₂. Since the pressure is the same on both sides,

Here, P = F₁/A₁ = F₂/A₂.

Therefore, the force F₂ is larger than F₁ by multiplying factor A₂/A₁. 

Bolt tightening with Hydraulic Jack 

Hydraulic jack

Hydraulic pump

 VIEW TOTAL PRODUCE IN PHOTOS

 

Use:

Bolt tightening, Hydraulic brakes, Car lifts,Load lifting in industries etc.

VISITORS ZONE

Q:What should be properties of hydraulic oil? 

 How a pneumatic jack differ from strand jack?

---

Please put your answer in comment section for discussion

---