Microhydraulics,
the applications are virtually unlimited
LEDUC micro-hydraulics offer a complete and original design wherever considerable
force is required within a small space envelope with very limited power
available.
Examples of particularly demanding applications
already mastered include :
• providing 13 tons
of crimping force for a handtool barely larger than a cordless drill ;
• ensuring the operational
reliability of oiltools for exploration and measurement while drilling,
where the entire hydraulics envelope may fit into a housing of no more
than 1.18 to 1.57in (30 to 40mm) in diameter, function during severe shock
and vibration or in a corrosive environment ;
• allowing
oceanographic research drifters, deployed throughout the
world’s oceans, to resurface regularly,and above all
with total reliability ;
• guaranteeing
the efficiency of guidance systems installed
on the most modern fighter aircraft.
The wide range of high technology industries concerned all require extensive
know-how, and each new application tends to push through the limits of
previous technology. Such is Hydro René Leduc’s ongoing
innovation challenge. |
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Complete
solutions
Hydro Leduc offers custom designed hydraulic
power packs.
Apart from the pump that is the heart of HRL’s activity, our design
team also has extensive knowledge and experience incorporating a
pump, electric motor, valving, tank, pressure limiter, and those components
which make up the pump’s environment.
Packages to suit the most diverse specifications can thus be developed.
An effective partnership wth an experienced team will guarantee the satisfaction
of your technical requirement.
The micro-pump…
• axial piston type
Developed and manufactured since 1970, Leduc axial piston micro-pumps offer
pressure
output up to 14500 PSI (1000bar).
Fixed and variable displacement models exist
in displacements from just a few cubic millimetres per revolution to 0.0915cu.in/rev
(1.5cc) and are suitable for operating at temperatures
between 122°F and + 392°F (-50°C and + 200°C).
This axial piston design is particularly well suited
to applications where diameter is critical.
• radial piston type
The radial design allows fixed, adjustable or variable displacement pumps
and motors to be produced of a much shorter length than the
axial piston models. |
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The new PR020
pump is the smallest high-pressure micro-pump in the
world, measuring just 1.18in (30mm) in diameter
and only 1.37in (35mm) long !
The Hydro Leduc
range covers displacements that are adjustable from 0
to
0.0092cu.in/rev (150mm³
/rev), and models for pressures up to and even beyond 10145PSI (700bar).
The radial technology also lends itself to reversibility,
for use as a hydraulic motor.
• transfert pump
Corrosive fluids or fluids with very low viscosities are a problem in
terms of the service life. Hydro Leduc has come up with a particularly innovative solution
to this problem: the transfer pump.
This recently patented technology involves separating the fluid to be
conveyed from the fluid that actually transfers the pumping energy.
The friction parts operate
in a good lubricating fluid, whereas the parts which pump the fluid to
be conveyed are subject to no friction.
This new and major innovation makes it possible to use seawater, for
example, as the operating fluid
for marine applications.
The transfer pump has been developed for displacements up to 0.061in
(1cm³) and for operation at pressures up to 4350PSI (300bar).
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