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Specialist power transmission supplier jbj Techniques Limited were recently contacted by the staff of BLOODHOUND SSC R&D engineering team to solve a problem on the fuel pump test rig.
jbj Techniques had worked with various team members in the past and this previous experience made jbj an easy choice to assist with this project.

The scope of supply was to produce a suitable drive coupling with a maximum diameter of 160mm which is capable of transmitting 550Nm @ 10,000 rpm, needed to be as short an assembly as possible and at the same time be able to accept misalignment within the drive-train.

jbj proposed a Sier Bath coupling from their principles RL Hydraulics in Germany who are a wholly owned subsidiary of Lovejoy Inc. in the USA. The high torque capacity of the coupling meant that, when assembled, it fitted perfectly within the existing adaptor arrangement and the crown tooth gear form on the coupling allows for relatively high misalignment without transferring loads between the shafts. ‘jbj’ had the blank parts in stock having a comprehensive stock of power transmission couplings of many types and designs. jbj Techniques are well known for this, being able to provide customers with essential quick turnaround to keep industrial downtime to an absolute minimum.

 test rig for BLOODHOUND SSC fuel pump

power transmission coupling provided for BLOODHOUND SSC fuel pump

jbj Techniques’s proposed solution required a special drive shaft, which when connected to the output flange of an automotive gearbox enabled easy assembly of the Sier Bath Unit. 3D models were then supplied and approved by the Bloodhound team and after
manufacture the complete assembly was dynamically balanced to ensure that the coupling operated without generating any additional forces.

jbj Techniques in a nut shell.

The fuel pump is the pump for the rocket, effectively it's an end suction centrifugal pump driven by a Jaguar 'F' type V8 engine. It’s roll is to pump the oxidizing agent (hydrogen peroxide) into the rocket engine which contains the actual (solid) fuel (rubber). The other engine is a jet and does not require a separate pump.

The end-suction centrifugal pump is basically an impeller mounted within a volute housing, the impeller is mounted on a shaft
supported on two bearings. One is mounted close behind the impeller with a pressurised double mechanical seal to prevent
leakage. A bearing housing accommodates the length of the shaft and ensures a suitable gap between the bearings sufficient to
support the rotating parts. This picture shows it standing on its suction inlet (picture above) flange with the outlet (discharge)
pointing to the left and the coupling at the top mounted on the end of the shaft.

See this on-line » document for lots more information

The range of mechanical power transmission couplings available from jbj Techniques Limited »

This time lapse video from the BBC shows the construction of BLOODHOUND SSC


Inspire, invigourate, empower and promote the engineers of the future.
jbj Techniques Ltd, mechanical & fluid power transmission experts believe the idea and ethics of this project endeavour to do exactly this. Engineers, industry, government and the British public need to support the Bloodhound project.
You have our sincere support - go, go, go!

Link to the official website of the Bloodhound SSC engineering adventure.
Inspiring the next generation: Is 1000 mph possible? The car:                                                  

BLOODHOUND SSC education and engagement – Inspiring the next generation

The BLOODHOUND SSC engineering adventure provides us with a once in a lifetime opportunity to inspire the next generation of scientists and engineers.

To achieve this ambitious goal, the BLOODHOUND Education Programme will be made available to all pupils in primary and secondary schools, and to students in further and higher education.

Link to the Bloodhound education programmeNearly 4,000 schools have registered in the first 18 months of the project, plus numerous presentations have been given to other groups and professional institutions, taking the project into the heart of the community and society.

Thrust SSC did a lot more than become the first car to exceed the speed of sound. It also smashed the previous record by a staggering 130 mph. Not only is this the biggest record margin ever, but even more amazingly, by exceeding the previous record by more than 20%, it also achieved the biggest percentage increase since land speed record breaking began. In aiming for 1000 mph the team are proposing to beat even this record by another 31%. More startling still – the official air speed record at low altitude (no longer competed for) is 994 mph. The team at Bloodhound SSC are even proposing to exceed that figure on land. Is this possible? This leads to the question: is there an absolute speed that cannot be exceeded? MORE »

The team are keen to have credible and capable challengers. Between Thrust 2 and Thrust SSC, Britain has held the Record for over a quarter of a century and there’s nothing quite like the promise of losing it – or actually losing it – to keep focus on getting the record back. This country has held the World Land Speed Record for longer than every other country put together, since the first record was set in 1898, and Bloodhound SCC are not going to let it go without a fight! MORE »

A wonderful opportunity with BLOODHOUND:

An opportunity to create the ultimate Land Speed Record car.

When designed and built Thrust2 had the objective of achieving a peak speed of 650 mph, just beyond the existing record of 622.407 mph held by Gary Gabelich in Blue Flame.

Then came ThrustSSC, which raised the Thrust2 record by a whopping 130 mph – that’s 20%.

But BLOODHOUND is different - so different.

The target is 1,000mph - that’s a 31% jump and there is no way that the BLOODHOUND SSC is going to look like anything seen before.

First, the all-important powerplants. A jet and hybrid rocket has been chosen.
The reasoning is that the rocket is needed for its raw power and lack of draggy air intake, but the downside is that the rocket is an on/off device and with rocket power alone there would be real difficulty hitting and holding selected Mach numbers for the aerodynamicists to gain their data. And at these speeds the team has to tread very carefully, increasing the Mach numbers in small, careful steps.

The BLOODHOUND SSC Supporters Club - "The 1K Club" as a member you can really be a part of the engineering adventure!

Events that
Bloudhound SSC
will have a presence.

jbj Techniques are on the tail fin. Follow this link for details.

See also this inspiring engineering challenge for schools wanting to encourage future engineers. Link »

The Big Bang UK Young Scientists & Engineers Fair.                    Link »

The Big Bang is the largest celebration of science, technology, engineering and maths for young people in the UK. Everything they do is aimed at showing young people just how many exciting and rewarding opportunities there are out there for them with the right experience and qualifications.

Britain has been, is and should remain at the forefront of technology, science, engineering and innovation. Help promote this. Support this on any level, in any way you can.

Engineers engineer things that are then used to engineer other engineered things that make the world we live in . . . how many engineered things do you use every day and without thinking about the processes behind their creation? We live in an engineered world that we take for granted but could actually very much get involved and be a part of. Could you change the World?


link to iso 9001:2008 conformity certificate. jbj Techniques Limited is ISO certificated, committed to international coordination & unification of industrial standards follow jbj Techniques on twitter follow jbj on facebook, comment or just be our friend link to jbj youtube channel link to jbj Techniques Google+ optional link to quality products for mechanical & fluid power jbj Techniques the Bloodhound SSC project enhanced fin donator


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