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Difference between revisions of "Piston Pumps"
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* Please start editing this page after the /noinclude | * Please start editing this page after the /noinclude | ||
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[[File:Piston pump.gif|thumb|right|Piston Pumps]] | |||
[[File:Piston pump1.jpg|thumb|right|Piston Pumps]] | |||
'''Piston Pumps''' are of [[Positive Displacement Pumps]] where the high-pressure seal reciprocates with the piston.Piston pumps can be used to move liquids or compress gases. | '''Piston Pumps''' are of [[Positive Displacement Pumps]] where the high-pressure seal reciprocates with the piston.Piston pumps can be used to move liquids or compress gases. | ||
==Types== | ==Types== | ||
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compressor. | compressor. | ||
====Uses==== | ====Uses==== | ||
Despite the problems indicated above this type of pump can contain most of the necessary circuit controls integrally to regulate flow and pressure, be very reliable and allow the rest of the hydraulic system to be very simple and inexpensive. | Despite the problems indicated above this type of pump can contain most of the necessary circuit controls integrally to regulate flow and pressure, be very reliable and allow the rest of the hydraulic system to be very simple and inexpensive. | ||
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====Construction==== | ====Construction==== | ||
The stroke of each piston is caused by an eccentric drive shaft or an external eccentric tappet.When filling the workspace of the pumping pistons from inside it is called an inside impinged radial piston pump . If the workspace is filled from outside it's called an outside impinged radial piston pump . | The stroke of each piston is caused by an eccentric drive shaft or an external eccentric tappet.When filling the workspace of the pumping pistons from inside it is called an inside impinged radial piston pump . If the workspace is filled from outside it's called an outside impinged radial piston pump . | ||
==Applications== | ====Applications==== | ||
Due to the hydrostatically balanced parts it is possible to use the pump with various hydraulic fluids like mineral oil, biodegradable oil, HFA (oil in water), HFC (water-glycol), HFD (synthetic ester) or cutting emulsion. That implies the following main applications for a radial piston pump: | Due to the hydrostatically balanced parts it is possible to use the pump with various hydraulic fluids like mineral oil, biodegradable oil, HFA (oil in water), HFC (water-glycol), HFD (synthetic ester) or cutting emulsion. That implies the following main applications for a radial piston pump: | ||
* machine tools (e. g. displace of cutting emulsion, supply for hydraulic equipment like cylinders) | * machine tools (e. g. displace of cutting emulsion, supply for hydraulic equipment like cylinders) | ||