Also, fuel injection pumps such as linear piston pumps and
rotary piston pumps.
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It's a type of piston / plunger pump using the principle of an
electrical solenoid to articulate the piston.
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The axial flow pump with a piston to move in a few.
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An axial piston pump is a positive displacement pump that has a number of pistons in a circular array within a cylinder block. It can be used as a stand-alone pump, a hydraulic motor or an automotive air conditioning compressor.
A radial piston pump is a form of hydraulic pump. The working pistons extend in a radial direction symmetrically around the drive shaft, in contrast to the axial piston pump.