1. Introduction to Pressure, Pneumatics, and Hydraulics
By Benjamin Kidd
ENGR-162/12 - Benjamin W. Kidd

2. ENGR-162/12 - Benjamin W. Kidd
Pneumatics
A branch of mechanics that deals with the mechanical properties of gases
Definition from Dictionary.com
ENGR-162/12 - Benjamin W. Kidd

3. ENGR-162/12 - Benjamin W. Kidd
Definitions
Pressure – Unit force per unit area
Common Units: PSI, Atmosphere, Pascal
PSI – Pounds Per Square Inch
Manifold – Multi-outlet air distribution device (A.K.A. a “splitter”)
Valve – Air flow control device (a “switch”)
Brass “T” Manifold
from
¼” NPT Ball Valve
from
ENGR-162/12 - Benjamin W. Kidd

4. ENGR-162/12 - Benjamin W. Kidd
Definitions
Pressure Gauge – Device that displays the pressure of an air system.
Compressor – Device which pressurizes air for use in air powered devices such as tools and pneumatic cylinders or to be stored in a tank.
Air Pressure Gauge
ENGR-162/12 - Benjamin W. Kidd
Air Compressor –

5. ENGR-162/12 - Benjamin W. Kidd
Definitions
Cylinder – Device which uses pressurized air to move a piston linearly.
ENGR-162/12 - Benjamin W. Kidd

6. Gauge and Absolute Pressure
Gauge Pressure – Air pressure measured relative to surrounding pressure (I.E. – what you see on a gauge)
Absolute Pressure – Air pressure measured in reference to a vacuum.
Note: Absolute pressure at sea level is equal to 1 Atm = 14.7 PSI
ENGR-162/12 - Benjamin W. Kidd

7. ENGR-162/12 - Benjamin W. Kidd
Solenoid Valves
ENGR-162/12 - Benjamin W. Kidd

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Solenoid Valves
Valve Closed
Valve Open
ENGR-162/12 - Benjamin W. Kidd

9. ENGR-162/12 - Benjamin W. Kidd
Hydraulics
A branch of science that deals with practical applications (as the transmission of energy or the effects of flow) of liquid (as water) in motion
Definition by Dictionary.com
ENGR-162/12 - Benjamin W. Kidd

10. Hydraulic Master Cylinder
ENGR-162/12 - Benjamin W. Kidd

11. ENGR-162/12 - Benjamin W. Kidd
Demonstration
ENGR-162/12 - Benjamin W. Kidd