I searched the Internet and found that there are several websites that have information about the pistonless pumps. Check this for example: http://www-rohan.sdsu.edu/~sharring/Pistonless_pump_for_CEV.pdf Could you share the information you have already collected and what extra information you're looking for so that we can help?
i had search for it and i didn't found much information.i had information about CEV and regarding rocket.but i want more....some international papers on it.
A lot of information is available on following locations :- http://www.responsivespace.com/Papers/RS2/SESSION PAPERS/SESSION 7/HARRINGTON/7004P.pdf The link I've shared earlier has important information that you might find useful. Did you go through it? Why not share the information you've collected and ask specific questions about the missing information?
thank you..inform me about some more links like the one you send me earlier.mean while ill shear whatever i have.