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Hydro-Aire and Lear Romec design and manufacture a
wide range of high performance centrifugal fuel pumps for commercial and
military airplanes. From small fractional horsepower D.C. boost pumps
used on business jets and small commercial transports to large multi-horsepower
A.C. jettison pumps used on large commercial transports and military aircraft.
Centrifugal pumps operate using kinetic energy to move fluid using an impeller
and a circular pump casing. The fluid enters the pump near the center of the
impeller and is moved to its outside diameter by the rotating motion of the
impeller. The vanes on the impeller progressively widen from the center of the
impeller that reduces speed and increases pressure. This allows centrifugal
pumps to produce continuous flows at high pressure.
The Crane Aerospace & Electronics Centrifugal Pumps are used for:
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Fuel Boost
Pumps
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Fuel
Override/Jettison Pumps
Configurations
The Hydro-Aire AC motor-driven fuel pumps are available in fuel tank mounted or
canister configurations. There are over 25,000 of these proven fuel pumps
currently in service.
Design Features
The principal design features of the Hydro-Aire
fuel pumps are:
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Mixed flow,
single or double inducer/impeller for pumping volatile fuel at high aircraft
climb rates
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Flow rates
up to 40,000 lbs/hr (120 gpm)
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Reprime
capabilities
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Output
pressure up to 28 psig
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Power
supply: 3 phase AC, 115/200V, 400Hz
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Non-resettable thermal fuses
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Excellent
dry run characteristics
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Ease of
service: Quick motor-impeller subassembly removal and replacement
without draining the fuel tank
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Wet motor
design: Fuel lubricates bearings and cools the electric motor
The principle design features of the Lear Romec centrifugal pumps include:
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Tank, spar, or line mounted
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Cartridge/Canister or single housing variants
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High altitude and inverted flight capability
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Fully submerged operation
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Explosion proof electric motors
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Self priming
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Dry run capability
All designs can be customized to fit your requirements. Our pump designs can
incorporate the following motor capabilities:
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Fixed And Variable Frequency A.C. Motors
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Brush Type and Brushless D.C. Motors
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270 VDC Motors
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Hydraulic Motors
Product Information and Applications
 Product Listing
for part numbers and nomenclature.
Our experience can be demonstrated by our long list of applications, select from
one of the following applications lists for details:
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