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New Extruded Tube with Twisted Fins promises great advantages in heat exchanger design.

 

Click here to read Eureka Magazine August 2005 article on twisted fin tube

 

Multi-channel extruded aluminium tube has been around for many years and has widespread uses in heat exchanger construction. Efficiency is however limited due to the need to bond an extended surface to the tube in the form of thin convoluted fin.

Brise Fabrications have developed a new manufacturing technique that will reduce the manufacturing cost and improve the efficiency of currently available products.

In addition to the multi-channel internal section of the tube, the Brise Twisted-Fin tube is extruded with continuous external fins running laterally along its length. In a post-extrusion forming operation, the lateral fins are twisted and sheared into an array of fins segments. These segments allow air or liquid to flow across the tube surface at right angles to the flow of Air or liquid in the internal channels. The segments are angled to promote a turbulent flow which enhances heat transfer.

 

Being formed from the parent material of the tube there is no thermal barrier caused by bonding or brazing of the extended surface and manufacturing costs are reduced. When the tubes are assembledinto a complete heat exchanger assembly the external fin arrays interlock to produce a very complex and thermally efficient path for fluids whilst retaining a very low pressure drop. Interlocking of the fins also reduces the physical size of the assembly and maximises the tube density. The lightweight fully welded final assembly can cope with very high pressures and temperatures.

 

The Brise heat exchanger is being used in Competition Cars, to give improved performance in Oil/Water heat exchangers ( below ), Air/Water Turbo charge air coolers ( right ), and Air/Oil coolers. Many Industrial applications may also benefit from the new technique, and Brise Fabrications are currently looking for partners to develop new market opportunities for their patented* process.

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Brise EV200 Battery Isolator

Click here to read the EV200 Performance Data

The Brise EV200 Battery Isolator is a sealed high current relay compatible with FIA  technical regulations (Appendix J Art. 253 General Circuit Breaker)

The EV200 has a built in coil economizer which limits the power used in the ‘ON’ position to only 1.7 watts. No power is used in the ‘OFF’ position.

Hermetically Sealed & intrinsically safe, it can be used in explosive & harsh environments.
Battery can be Isolated and re-connected  by low voltage wiring and switches.
Incorporates alternator protection circuit.

The EV200 carries 250 Amps continuous and 500 Amps for engine starting.

 

Click here for EV200 order information

 

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Brise Axial Starter Motor

New Design of Starter Motor achieves compact dimensions and light-weight. All pre-engaged starters have an externally mounted solenoid which can often restrict the mounting options

The Brise Axial Starter Motor is designed specifically for competition applications, and incorporates a solenoid that is mounted inside the main body of the starter, and operates axially through the centre of the motor shaft.

 

 

Animation of the Axial Starter Motor (Duration 4' 52")

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BRISE Dynamo styled alternator

Dynamo style alternator generator for legacy applications / classic cars

 

Designed to upgrade the
original Lucas C40 and C40L
Dynamo to a modern alternator.
Externally identical but with
reliable high performance. Light
weight alloy body. Ideal for racers
of classic vehicles. Negative earth
Lucas C40 (BRI006)

 

Click here for Dynamo order information

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