On July 11, 2012, a handing over ceremony of Engine Blow-By
Measuring System was held at NUST. A total of 9 systems were developed
and handed over to the Pakistan Army. The systems have been developed by
NUST School of Mechanical and Manufacturing Engineering (SMME).
Earlier, similar products had been delivered to other OEMs including
The system is first of its kind and a joint patent
between the developer and NUST has been filed.
This system can measure engine blow-by which is one of the most
important parameters to investigate engine internal health. The engine
blow-by is the leakage of combustion gasses from the combustion chamber
to the crankcase due to the excessive wear of piston rings, liner,
piston grooves and skirt. Monitoring engine blow by indicates the right
time to overhaul the engine and is very helpful in maintenance
Measuring engine blow-by is challenging parameters to measure
effectively due to its very limited flow rates which makes it merely
impossible to measure through conventional means. Special techniques are
used to measure such limited flow rates.
The system developed at SMME
utilizes the advanced embedded system coupled with sensitive flow
system. The in-built advanced DAQ system logs the data for analysis,
validates and performs signal conditioning. The data is then displayed
on the screen in a user friendly manner for the testing personnel to
monitor and diagnose the problem on the spot.
A number of OEMs have purchased this device and is widely used for
quality control and engine maintenance.
This system was customized for the user according to their needs.
this regard a handing over ceremony was chaired by Rector NUST Engr.
Muhammad Asghar. Professor Emeritus Dr. Akram Sheikh, Principal of the
School Dr. Abdul Ghafoor and other dignitaries form higher management of
NUST attended the ceremony. DG EME Maj. Gen. Jamshed Riaz, guest of
honour, commended the efforts made by NUST in general and the SMME in
particular for building the trust between industry and university
through developing a product that is needed by the industry. In s
closing remarks, Rector NUST thanked DG EME for showing confidence in
the capabilities of NUST and hoped that this relationship would further
strengthen in the future.