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Hydraulic Pump Terms
–
A container that stores fluid under pressure and is utilized as a source
of energy or to absorb hydraulic shock. Accumulator types include piston,
bladder and diaphragm.
– A circumstance
that occurs in pumps when existing space is not filled by available fluid.
Cavitation will deteriorate the hydraulic oil and cause erosion of the
inlet metal.
– A system
in which the pump continually operates against a load, even in the neutral
condition.
– A hydraulic actuator
constructed of a plunger or piston inside a cylindrical housing. The piston
or plunger operates because of pressurized liquid.
– The amount of
liquid transferred from the inlet of the pump to the outlet in a single
revolution. Displacement can be fixed or variable.
– The amount of liquid
volume that passes a given point in a given time. Flow rate is commonly
measured in gallons per minute (gpm).
– Vertical distance measured
between two stages in a liquid.
– The piece
of machinery that receives pressure from the energized fluid and then
converts it to motion and mechanical force.
– A device
that filters out impurities in the liquid used to create mechanical energy.
– A relatively
thick hose that transfers liquids to and from hydraulic pumps.
– Any device used to create kinetic
energy within a hydraulic system. Motors and manual energy are both sources
of power in hydraulic power units.
– A device used to troubleshoot and check hydraulic powered system
components.
– A device used
to regulate water distribution in hydraulic applications.
– The science dealing
with the transmission of force through the medium of a contained fluid.
– A slippery and viscous
liquid that is not miscible with water. Oil is often used in conjunction
with hydraulic systems because it cannot be compressed.
– A system
in which the yield of the pump has a free-flow passageway back to the
reservoir, while in the neutral condition.
– A device used for converting
hydraulic power to mechanical energy. In hydraulic pumps, the piston is
responsible for pushing down and pulling up the ram.
– A mechanical device that
transports liquids and gases by suction or pressure.
– A hydraulic mechanism
that uses the kinetic energy of a flowing liquid to force a small amount
of the liquid to a reservoir contained at a higher level.
– In hydraulics,
the condition engendered by an obstruction or restriction in the flow
path.
– A fastener designed to
provide a perfect and tight closure. Seals prevent environmental materials
from contaminating hydraulic assemblies.
– A device used to regulate
the amount of hydraulic or air flow. In the closed position, there is
zero flow, but when the valve is fully open, flow is unrestricted.
– Pressure in a hydraulic system caused
by kinetic energy.
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