Hydraulics: 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. 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. 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.