Exhaust Valve End of Line Test Diesel engine vehicles are equipped with specialized valves. EPM valves act as exhaust brakes by controlling back pressure into the engine. EGR valves reduce emissions by re-circulating exhaust gasses.
To perform end of line test on a new range of valves the manufacturer wanted to replace the existing test rigs. The test rigs used high volume air pressure to replicate engine operating conditions. This required a large air reservoir and compressor installation that was expensive to operate and occupied a large area of the manufacturing site.
New test rigs that use a low volume pneumatic system were designed. The mechanical assembly of the rigs was carried out by the customer. Tascomp developed the PC based control and monitoring system.
Each valve is tested during manufacture. Test criteria include stiction
of moving parts, fully closed flap leakage, quick release and
modulation force tests. Valve movement is monitored as air is passed
through the test piece in a test sequence controlled by the system. The
system records the test data and validates each test, automatically
passing or failing each device under test. A single page “Proof of
Process” report provides accurate test data and traceability for every
valve.
The success of the new system has allowed the decommissioning of the
original air reservoir and compressor. This has significantly reduced
running costs and freed up valuable space at their manufacturing
facility.
For advice on a test project and a budgetary price complete the form or call on 01642 370666.
Exhaust Valve End of Line Test Diesel engine vehicles are equipped with specialized valves. EPM valves act as exhaust brakes by controlling back pressure into the engine. EGR valves reduce emissions by re-circulating exhaust gasses.