{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Hydraulic Systems - Hydraulic Systems Chapter 11 Material...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Hydraulic Systems Chapter 11 Material taken from Goering, 2003, Off-Road Vehicle Engineering Principles Basic Principles Hydraulic fluids are virtually incompressible at the pressures used in hydraulic systems. Liquids transmit pressure equally in all directions. The next slide is an illustration of a hydraulic jack. Basic Principles con’t By applying a downward force on the small piston, the jack can be made to lift a heavy mass on the large piston. The liquid fills the entire volume between the two pistons, and because it is incompressible, some liquid must move into the large piston chamber when the small piston is pushed downward. Goering, 2003, Off-Road Vehicle Engineering Principles
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2 Basic Principles con’t The pressure beneath the small piston is equal to F 1 / A 1 . The same pressure acts on the large piston because the liquid transmits pressure equally in all directions. Because A2 > A1, the force on the large piston is much larger than the force on the small piston. Pump Systems Open loop: provides cooling medium Closed Loop: temperature build up Vickers, Mobile Hydraulics Manual Lab-Volt, Hydraulic Trainer Manual
Image of page 2