Piston pump
A technology of piston pump and pump piston, applied in the direction of pump, multi-cylinder pump, pump element, etc., to achieve the effect of high cost saving, high reliability and low friction
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[0037] figure 1 A piston pump 10 according to one embodiment is shown with a pressure generating device 30 and a control device 40 . The piston pump 10 illustratively comprises a pump piston 12 , preferably made of a suitable elastic thermoplastic and / or thermosetting plastic material, which is oscillatably movable in a cylinder 14 along a longitudinal axis 18 by means of a piston rod 16 , exist figure 1 where are illustratively upward and downward motions. The piston rod 16 is received axially displaceably in an essentially hollow-cylindrical guide bush 20 and is sealed relative thereto by sealing rings 22 , 24 . The piston rod 16 is driven by means of a schematically shown eccentric drive 26 , so that the pump piston 12 is moved along the longitudinal axis 18 in the cylinder 14 in a desired oscillating upward and downward motion. However, it should be pointed out that a suitable eccentric drive is sufficiently known to a person skilled in the art and is not the subject of...
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