1. PUMP
- Virag A Timbadia

2. Table Of Content Introduction Types & Application
Explanation Of Each Type
Pressure Range

3. Objective Define Pump State Various Types Of Pump
Explain Construction & Working Of Pump
Enlist Applications Of Various Types Of Pump
State Pressure Range

4. Introduction Pump is a device used It acts as a Heart
To move fluids (liquids or gases)
Increases the mechanical energy of the fluid
It acts as a Heart
Link between reservoir and control valve

5. Classification Of Pump
Positive displacement
Rotary
Gear
External
Internal
Gerotor
Lobe
Vane
Fixed displacement
Unbalanced vane
Balanced vane
Variable displacement
Screw
Single (Mono)
Twin
Reciprocating
Axial piston
In line
Variable plate
Inclinable swash plate
Cam/crank shaft driven piston pump
Bent axis
Radial piston
Stationary cylinder block
Rotating cylinder block
Non-Positive displacement / Rotodynamic
centrifugal
Axial Flow
Radial Flow

6. Positive Displacement Pump
Pumping volume changes
From maximum to minimum during each cycle
Advantages of Hydrostatic
Widely used & generate high pressure
Small in size & high (power/weight)
High volumetric efficiency
Flexibility of performance (N = p ≠ Constant)

7. Rotodynamic / Non Positive Displacement Pump
Fluid displaced using fluid (motion) inertia
Low pressure (rarely used as p < 40kg/cm2)
Advantages of Hydro dynamic
Initial & maintenance cost is less
Simplicity of operation & operated quietly
High reliability
Capable of handling any type of fluid

8. Rotary Pump Gear Pump Uses the meshing gears to displace fluid
Can be classified as
External gear pump
Internal gear pump
Gerotor pump

9. Rotary Pump External Gear Pump Two gears Complete sealing
Helical gears
If pressure angle 14 ½*
Then min no of teeth are 16

10. Application Of External Gear Pump
Various fuel oils
Chemical additive and polymer metering
Chemical mixing and blending (double pump)
Industrial and mobile hydraulic applications (log splitters, lifts, etc.)
Acids and caustic (stainless steel or composite construction)
Low volume transfer or application

11. Rotary Pump Internal Gear Pump Delivery Drive Gear Driven Gear
Two gears & one Cresent
Pressure up to 350bar
Less noise
Inlet
Cam

12. Application Of Internal Gear Pump
All varieties of fuel oil
Resins and Polymers, Alcohols and solvents
Polyurethane foam (Isocyanate and polyol)
Food products such as chocolate, and peanut butter
Paint, inks, and pigments
Soaps and surfactants, Glycol

13. Rotary Pump Gerotor Pump Outer gear idler
Outer Gerotor has one tooth more
Axis offset
Rev = inner teeth/outer teeth
Pressure 125bar
If not precise leakage
Compact compare to ext. pump

14. Rotary Pump
Lobe Pump
More quantity of oil at low pressure

15. Application Of Lobe Pump
Polymers, Paper coatings
Soaps and surfactants
Paints and dyes
Rubber and adhesives
Pharmaceuticals
Food applications 

16. Rotary Pump
Vane Pump

17. Application Of Vane Pump
Aerosol and Propellants, Refrigeration Coolants
Aviation Service - Fuel Transfer, Deicing
Auto Industry - Fuels, Lubes
Bulk Transfer of LPG and NH3, Aqueous solutions
LPG Cylinder Filling, Alcohols, Solvents
Refrigeration - Freons, Ammonia

18. Rotary Pump Screw Pump Single Screw Rotor Elastomer Stator
Universal Coupling

19. Rotary Pump
Screw Pump

20. Reciprocating Pump Axial piston pump Piston used are 6, 8 or 10
If plate is straight
At  = 0*, No flow
At  = 180*, Forward Flow
At  = -180*, Reverse Flow
Max Swash plate angle limited to17 ½*
Pressure 700 bar

21. Reciprocating Pump
Bent Axis piston pump

22. Reciprocating Pump
Radial piston pump

23. Pressure Range Sr. No. Pump Pressure (bar) Efficiency (%) 1
External gear pump
300 60 2
Internal gear pump
350 85 3
Fixed vane pump
175 75 4
Variable vane pump
125 5
Screw pump 6
Axial piston pump
700 7
Bent axis pump 90

24. Summary Following things studied during session Pump and its function
Classification
Construction of various types of pump
Working of various types of pump
Application of various types of pump
Pressure Range & Efficiency

25. THANK YOU
Any Questions???