Pumps

O B J E C T I V E S

Types of Pumps

• Describe the basic operation of a hydraulic power circuit.
• Describe the role of a pump in a typical hydraulic power circuit.
• Describe how positive displacement pumps work and explain why they are used in hydraulic power circuits.
• Describe the differences between a fixed displacement pump and a variable displacement pump.

Rotary Pumps

• Describe the basic operation of an external gear pump.
• Describe the basic operation of an internal gear pump.
• Describe the basic operation of a gerotor pump.
• Describe the basic operation of an unbalanced vane pump.
• Describe the basic operation of a pressure compensated vane pump.
• Describe the basic operation of a balanced vane pump.

Piston Pumps

• Describe the basic operation of a fixed displacement radial piston pump.
• Describe the basic operation of a variable displacement radial piston pump.
• Describe the basic operation of a fixed displacement axial piston pump.
• Describe the basic operation of a variable displacement axial pump.
• Describe the basic operation of a fixed displacement bent-axis pump.
• Describe the basic operation of a variable displacement bent-axis pump.
• Describe the basic operation of a pressure compensated axial piston pump.

S U B J E C T S

Types of Pumps

• Pump Basics
• Positive Displacement Pumps

• Gear Pumps
• Vane Pumps

• Radial Piston Pumps
• Axial Piston Pumps
• Pressure Compensated Piston Pumps