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#FluidPowerWebinar
#FluidPowerWebinar
Thank you to our sponsors
#FluidPowerWebinar
q  This webinar will be available afterwards at
www.fluidpowerworld.com & email
q  Q&A at the end of the presentation
q  Hashtag for this webinar: #FluidPowerWebinar
Before We Start
#FluidPowerWebinar
Meet your Speakers
MODERATOR FEATURED SPEAKER
Josh Cosford
Contributing Editor
Fluid Power World
Paul Heney
Editorial Director
Design World
#FluidPowerWebinar
The basics of hydraulic
pump design
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
A hydraulic pump operates
by alternately increasing
and decreasing
displacement
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
The hand pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
The hand pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
The hand pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
The hand pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
The hand pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
There are three primary
types of hydraulic pumps.
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
There are three primary
types of hydraulic pumps.
Understanding Hydraulic Pump Designs
Ø  The gear pump
Ø  The vane pump
Ø  The piston pump
#FluidPowerWebinar
Gear Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Gear Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Gear Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Gear Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Gear Pump
Understanding Hydraulic Pump Designs
Advantages:	
Ø  Inexpensive	
Ø  Contamination resistant	
Ø  High RPM capable	
Ø  Rotation easily changed	
Ø  Reliable	
Ø  Can be stacked together	
Disadvantages:	
Ø  Inefficient	
Ø  Can be noisy	
Ø  Quickly become less
efficient with wear and
higher pressure
#FluidPowerWebinar
Vane Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Vane Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Vane Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Vane Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Vane Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Vane Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Vane Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Vane Pump
Understanding Hydraulic Pump Designs
Advantages:	
Ø  Quiet	
Ø  Relatively contamination
resistant	
Ø  Fixed pumps
inexpensive	
Ø  Easily repairable	
Disadvantages:	
Ø  Low RPM	
Ø  Variable pumps can get
expensive	
Ø  Low pressure capacity
#FluidPowerWebinar
Piston Pumps
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Piston Pumps
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Piston Pumps
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Piston Pumps
Understanding Hydraulic Pump Designs
Axial Piston Pump Bent Axis Piston Pump Radial Piston Pump
#FluidPowerWebinar
Axial Piston Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Axial Piston Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Bent Axis Piston Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Radial Piston Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Radial Piston Pump
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Piston Pumps
Understanding Hydraulic Pump Designs
Advantages:	
Ø  High to very high
pressure capacity	
Ø  High RPM	
Ø  Extremely efficient	
Ø  Myriad configurations of
compensation	
Disadvantages:	
Ø  Expensive	
Ø  Contamination sensitive	
Ø  Most expensive to repair
#FluidPowerWebinar
Recap
Understanding Hydraulic Pump Designs
#FluidPowerWebinar
Recap – Gear Pumps
Understanding Hydraulic Pump Designs
Ø  Inexpensive	
Ø  Contamination resistant	
Ø  High RPM capable	
Ø  Rotation easily changed	
Ø  Reliable	
Ø  Can be stacked together	
Ø  Inefficient	
Ø  Can be noisy	
Ø  Quickly become less
efficient with wear and
higher pressure
#FluidPowerWebinar
Recap – Vane Pumps
Understanding Hydraulic Pump Designs
Ø  Quiet	
Ø  Relatively contamination
resistant	
Ø  Fixed pumps
inexpensive	
Ø  Easily repairable	
Ø  Low RPM	
Ø  Variable pumps can get
expensive	
Ø  Low pressure capacity
#FluidPowerWebinar
Recap – Piston Pumps
Understanding Hydraulic Pump Designs
Ø  High to very high
pressure capacity	
Ø  High RPM	
Ø  Extremely efficient	
Ø  Myriad configurations of
compensation	
Ø  Expensive	
Ø  Contamination sensitive	
Ø  Most expensive to repair
#FluidPowerWebinar
Questions?
MODERATOR FEATURED SPEAKER
Josh Cosford
Contributing Editor
Fluid Power World
howsthatgoin@hotmail.com
@FluidPowerTips
Paul Heney
Editorial Director
Design World
pheney@wtwhmedia.com
@DW_Editor
#FluidPowerWebinar
q  This webinar will be available at
www.fluidpowerworld.com & email
q  Tweet with hashtag #FluidPowerWebinar
q  Connect with Fluid Power World
q  Discuss this on EngineeringExchange.com
Don’t Forget!
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Understanding Hydraulic Pump Designs