Fans and cooling systems that meet every challenge for the railway industry.
Whether powered by diesel or electricity, whether designed for tramway, light rail or long distance high-speed routes, all rail transport systems share a need for cooling equipment that meets some very specific demands.
The range of fan units and cooling systems we have developed specifically for the transport industries addresses every one of these issues, often in unique and innovative ways, to provide rolling stock manufacturers and operators with equipment they can rely on with complete confidence.
Howden technologies have been an integral part of international transport for well over a century. The sector depends heavily on fans and cooling units that are custom designed to meet the precise requirement of each operator, then produced in series to provide bespoke performance and reliability at minimal cost.
Our range includes centrifugal, axial and hybrid technology fans for rail traction motors, locomotive engines, traction and auxiliary converters, braking resistors and traction transformers cooling systems. As well as high speed rail applications such as TGV and ICE, our range covers end users as diverse as cooling fans for off-road vehicles and suction fans for road sweeping equipment.
We work closely with major manufacturers of rolling stock to determine their precise requirements, and then we subject our designs to the most severe test conditions to ensure that we are providing exactly what the industry needs.
We produce complete aerodynamic performance curves following ISO5801 procedures.
Acoustic tests are CETIAT calibrated and comply with ISO 13347 standards.
We investigate the temperature rise in motor windings to ensure safe long-term running.
Vibration and shock testing is used to eliminate natural frequencies and carry out vibration spectrum analysis.
Over-speed and fatigue tests, using a concrete test bed capable of taking impellers up to 1250mm, are used for testing to destruction to establish safety margins and regulatory compliance.
Our fans and cooling systems are the first choice for critical areas where excessive heating would have serious consequences for safety, and could potentially cause complete stoppage. They are also widely used in more general applications like carriage air conditioning. Whether their role is safeguarding against failure or maintaining the comfort of passengers, Howden’s reliability and resilience ensures continued operation in the most challenging environments.
An AC induction or synchronous AC motor used to drive electric trains. Our fans can minimise energy loss.
Products: Centraxial, CEU & CHK, BZi, Cooling system, Micropal
Products: Centraxial, CEU & CHK
Products: Centraxial, CEU & CHK, BZi, Cooling system
Products: BZi & HMP
Products: CEU & CHK, BZi
Howden's leading edge technologies are driven by our philosophy of continuous improvement and innovation. Every fan is the product of many decades of research, development and evolution using state-of-the-art software and analytical tools. The final products are customised and fine-tuned as appropriate to offer the precise performance needed in the most efficient way.
Our advanced aerodynamic designs are based on aerofoil geometries developed for the specific duties of the fan. The units we produce for rail transport applications are low noise, lightweight products that make use of the most advanced materials available, including aluminium alloys and carbon fibre composites. Their compact structures and casings can be readily integrated into the key vehicle locations and, crucially, their low power requirements bring significant energy savings.
These adaptable axial fan units, most suitable for clean air environments, are available in diameters from 315mm to 1250mm and a choice of casing lengths and impeller designs that makes them one of our most adaptable units for rail transport applications. The pitch of the aluminium blades can be adjusted while the unit is stopped, making it possible to optimise the performance of an already highly efficient design.
Applications: Traction motor, Transformer, Braking Resister, Air conditioning, Auxilliary converter
Our centrifugal fans are available in more
than 30 different aerodynamic configurations,
producing flow volumes up to 25 cubic
metres per second or pressures of more than
6000Pa. The radial impeller blades, normally
between 250mm and 800mm in diameter,
draw on a variety of designs and materials
to cope with dusty environments or clogging
particles. This makes the fan ideal for highly
demanding situations such as the undersides
of bogies. The flexibility of the design means
it can be customised to suit virtually any
Applications: Traction motor, Traction converter, Line inductance, Transformer, Air conditioning, Auxilliary converter
The centraxial fan uses an innovative
approach that combines a centrifugal or
mixed flow impeller design with an axial
fan style casing. The fan is placed within
a cylindrical housing that can be readily
integrated into the design of rolling stock.
With a range of impeller diameters from
315mm to 630mm, centraxial fans provide
low-noise, high efficiency delivery of up
to 5 cubic metres of flow per second at
pressures of up to 4500Pa. They are
eminently suitable for driving the airflow
from roof level downwards into various
locations where cooling is required.
Applications: Traction motor, Traction converter, Line inductance, Transformer
This compact packaged cooling system
has been specially developed for the
particular requirements of transformer
cooling. Custom designed to fit alongside
the step-down transformer beneath the
body of the vehicle, the unit incorporates
an integral radiator and plenum as well as
fans and motors, and the supporting frame
is ready for chassis mounting. Their power
ratings typically lie within the 50kW to
Applications: Traction motor, Transformer
The micropal fan provides powerful
performance in a very compact unit by using
a specially developed arrangement of twin
twisted impeller blades. The high efficiency
design places the fan motor in the airflow,
creating an integrated unit suitable for
mounting in virtually any position. With
impeller diameters typically between 315mm
and 400mm, the micropal fan is enormously
versatile in rolling stock applications ranging
from auxiliary cooling of power packs to
carriage air conditioning.
Applications: Traction motor
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