4 Lube in 5 Lube Oil Pump

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4 Lube in 5 Lube Oil Pump

• Shayne Welsh

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Diagram
3
Rotor pump

• Gerotor pump
• Inner gear turns inside outer gear
• Inner has 1 less lube
• Inner slightly off center
• Outer 80 of inner speed

4
Positive Displacement Pump

• Rotor/gerotor fit into broader category
• Food processing
• Typically made of aluminum, brass or bronze, cast
  iron, plastic or stainless steel
• Two ratings petrochemical
• Petrochemical
• 10 000 40 000psi

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Reference List

• Carley, L. (August 2003). Engine Series
  Online. Available http//www.tomorrowstechnicia
  n.com/tt/t280320.htm (September 29, 2005).
• Find positive displacement pumps,
  positive displacement pump, small positive
  displacement pumps Online. (2005). Availabe
  http//flow-control.globalspec.com/LearnMore/Flow_
  Control_Flow_Transfer/Pumps/Positive_Displacement_
  Pumps (September 29, 2005).