Hydraulic Power Principles Flashcards
1
Q
What is a passive hydraulic system
A
Human powered operations.
eg.pressing on break pedals results in brakes being operated.
2
Q
What is an active hydraulic system
A
Powered system. Pump used to raise hydraulic pressure.
Supply constant pressure or generate pressure only when demanded. Known as open centre systems
3
Q
Low,High,V.high
Pressure systems PSI
A
2000, 3000/4000,
5000
4
Q
Advantages and disadvantages of high pressure
A
Reduced fluid volume/component mass
V.high pressures cause shear stresses in fluid and slight risk fluid leaks at joints
