3. Define Pump
State Various Types Of Pump
Explain Construction & Working Of Pump
Enlist Applications Of Various Types Of Pump
State Pressure Range
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4. Pump is a device used
To move fluids (liquids or gases)
Increases the mechanical energy of the fluid
It acts as a Heart
Link between reservoir and control valve
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6. 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)
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7. 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
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8. Uses the meshing gears to displace fluid
Can be classified as
External gear pump
Internal gear pump
Gerotor pump
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9. Two gears
Complete sealing
Helical gears
If pressure angle 14 ½*
Then min no of teeth are 16
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10. 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
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11. Two gears & one Cresent
Pressure up to 350bar
Less noise
Drive Gear
Inlet Cam
Driven Gear
Delivery
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12. 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
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13. 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
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20. 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
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24. 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
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