Transcript Fundamentals of Pneumatics

Hydraulic Applications
In this presentation you will:
 identify applications of hydraulics
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Hydraulic Applications
In this presentation you will see examples of where hydraulics are
used in real world applications.
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Hydraulic Applications
Uses of Hydraulics
Hydraulic systems are used where
large, precise forces are required.
Common examples include:
 Vehicle power steering
 Dump trucks
 Flight simulators
 Hydraulic jacks
 Heavy earth moving equipment
 Vehicle brake systems
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Hydraulic Applications
Example: Aircraft Hydraulic Systems
All modern aircraft contain
hydraulic systems to operate
mechanisms, such as:
 Flaps
 Wing position
 Landing gear
Hydraulic power is provided by a
pump that is coupled to an engine.
Power is distributed to systems
throughout the aircraft by
transmission lines.
Hydraulic
pump
Landing
gear
Actuating
cylinder
Hydraulic power is converted to
mechanical power by means of an
actuating cylinder or hydraulic motor.
Engine power
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Hydraulic Applications
Question 1
Which aircraft system is NOT powered by hydraulics?
A) Landing gear
B) Propulsion
C) Wing position
D) Flaps
Hydraulic Applications
Example: A Vehicle Braking System
The function of a vehicle
braking system is to stop or
slow down a moving vehicle.
When the brake pedal is
pressed, hydraulic pressure is
transmitted to the piston in the
brake caliper of the brakes.
Brake pedal
pressure
Pads
Brake caliper
Piston
Pads
This pressure forces the brake
pads against the brake rotor,
which is rotating with the wheel.
The friction between the
brake pad and the rotor
causes the wheel to slow
down, and eventually stop.
Rotor
Caliper Rotor Piston inside caliper
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Hydraulic Applications
Question 2
Hydraulic pressure pushes what, to squeeze the brake pads?
A) The rotor
B) The caliper
C) The piston
D) The brake pedal
Hydraulic Applications
Example: Industrial Hydraulics
Hydraulic systems are widely used in
industry. They may be integrated with
pneumatic and or electromechanical
systems.
Typical applications include:
 Presses
 Platform hoists
 Hydraulic motors
 Jacks
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Hydraulic Applications
Example: Construction Machines
Construction machines use hydraulics to move heavy loads. Hydraulics in
construction machines can be used to move a large load, with a small
force.
Typical machines include:
 Cranes
 Skip / loaders
 Dump trucks
 Excavators
All of these machines use hydraulic pressure to move powerful cylinders
that operate buckets, booms, blades and raise beds.
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Hydraulic Applications
Other Systems
Other typical applications, not covered in detail include:
 Elevators
 Dampers used for
vehicle suspension
 Ship anchor windlasses
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Hydraulic Applications
Summary
You should now be aware of:
 Aircraft systems that use hydraulics
 Hydraulics used in vehicle
braking systems
 Industrial applications of
hydraulic systems
 Construction machines
that use hydraulics
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