Brief description of Hydraulic power pack, basic parts of it and affecting parameters for the same, it is used in many industrial applications and in some heavy civil applications

1. SEMINAR
ON HYDRAULIC POWER
PACK
PRESENTED BY :
SHREYAS SURESH PANDIT ,BE (MECH)

2. What is Hydraulic Power pack?
Converts electrical
energy into hydraulic
drive power
Electric pump, filters,
reservoir, valves, and
pressure relief
Power pack in
Aircraft

3. Identification of parts…

4. Types…

5. Design…
1. Power supply Plug.
2. ON/OFF Switch.
3. Pressure port.
4. Pressure relief valve.
5. Tank connection.
6. Pressure gauge.
7. Tank connection for reservoir.
8. Drain screw.
9. Tank.
10. Sight glass for level indicator.
11. Flange.
12. Capacitor.
13. Electric motor.

6. Hydraulic reservoir …
 The reservoir is a tank in
which an adequate
supply of fluid for the
system is stored.
 Types.
 Functions .

7. Functions ….
 Used to pick up smaller
contaminant particles
because they are able to
accumulate them better
than a strainer.
 A coarse filter
 Is constructed of a fine
wire mesh screen or of
screening consisting of a
specially processed wire
of varying thickness
wrapped around metal
frames.
Filters Strainers

8. Functions… Hydraulic pumps
 The combined pumping
and driving motor unit is
known as hydraulic
pump
 Types
 Factors affecting
selection of pump :
Pressure, flow,
Efficiency,
P/W ratio, cost

9. Functions … Pressure relief valve
 Function
 Types
 Ball
 Sleeve
 Poppet
 System relief valve.
 Thermal relief valve.

10. Function… Pressure gauge
 Measure the internal
pressure and/or vacuum
of a vessel or system
 PSI (Pounds per Square
Inch)
 BAR
 PA (Pascal)
 In Hg (Inches of
Mercury)
 In H2O (Inches of Water)

11. Function… Heat exchanger
 Heat exchangers in their
hydraulic power supply
system to cool the
hydraulic fluid from the
hydraulic pumps.
 Viscosity
 Cavitations, wear,
leakage
 Water

12. Functions… Electric motor
 Types :
• DC motor
• AC motor
 Selection
Calculating pressure
requirement at pump
outlet.
 Mounting

13. Function…Hoses and pipes
 A flexible
connections
 They suppress
noise and vibration.
 manufactured in
layers of
elastromers , and
braided cloth or wire
 Installation
Installation of Hydraulic hose (Rules)

14. Trouble shooting…
 SYMPTOM OR PROBLEM
 Motor not running
 Start solenoid just clicks, motor not turning
 Motor runs, but unit will not build hydraulic
pressure
 Excessive heat from unit

15. Conclusion
By employing a Hydraulic system, the
advantage over Mechanical and Electrical
systems are: Possibility of automation of all
types of movements. Speeds, forces can be
easily and infinitely controlled by using
cylinders, and linear movements can be
carried out without the use of Mechanical
components

16. THANK YOU …