Drive coupling for the Bloodhound SSC fuel pump

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jbj Techniques Limited solve a problem on the fuel pump test rig

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.

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.
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