pneumatics Flashcards
From the Greek word —–
Means ——-
Pneuma, Breath of wind
unit of measures
Bar and PSI
Application of Pneumatics
Manufacturing plant
Automotive
Construction
5 elements in pneumatic systems
compressor
reservoir (or receiver)
One or more valves
circuit
actuator or motor
Elements in Pneumatic Systems that makes air
compressor
Elements in Pneumatic Systems that stores air.
reservoir (or receiver)
Elements in Pneumatic Systems that controls air
one or more valves
Elements in Pneumatic Systems that moves air between the other components
circuit
Elements in Pneumatic Systems that uses air to do something
actuator or motor
Characteristics of Air
Air is a mixture of many gases, water vapours and dust particles.
Air exerts pressure.
Air has mass.
Air occupies space.
Air is colourless and odourless.
Available everywhere for compression in unlimited quantities.
Fast working medium
are devices that convert the energy of compressed air or gas into a
mechanical motion that regulates one or more final control elements.
Pneumatic Actuator
Types of Pneumatic Actuators
spring/diaphragm
Piston
rotary vane
are normally used for control valves, which are a type of globe valve that is
typically used to regulate the fluid in order to adjust some process variables,
such as pressure, temperature, or flow rate.
spring or diaphragm
are used when the stroke of a diaphragm actuator would be too short
or the thrust is too small.
piston
is a pneumatic cylinder used to provide a turning or angular
movement, allowing a stroke in an oscillating motion through a
defined angle.
rotary vane
