As I remember from my days (long ago) when I was involved with pump manufacturing, even pumps made according to the original design deviated in performance.
If you base your design on one that is under performing your final product won't be good enough. A slight measurement error may result in incorrect uneven vane spacings and vibration.
Personally I won't go for pirate pump parts. A drop in efficiency will absorb the savings in no time.
I don't think an university will officially teach reverse engineering.
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Never do today what you can put of until tomorrow - Student motto
You mentioned in one comment that theory and practice differ. That is right but not forget that:
- theory can be seen as "condensed practice"
- if you do not master theory you cannot practice RE since you may introduce errors by misunderstanding what you see.
I remember a very good example in gear pumps there is a nut to avoid over compression between teeth. Those nuts have same profile as nuts for keys. Some body saw it and said at disassembly you lost the key make one and put it place. Fortunately for the pump I saw the one who made the key and gave the right explanation so that the pump was saved.
If you ever want to do RE (in fact it was practice a long time before it got its name) it is compulsory to be VERY good in theory in the field where you want to analyse a product.
i want to increase the turn over of my company.. do u have ideas and where cani approach... where can i get more orders for my company in that field...