Heisel, UweMatten, NicholasRothmund, Johannes2010-02-052016-03-312010-02-052016-03-311991318883724http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-50381http://elib.uni-stuttgart.de/handle/11682/4281http://dx.doi.org/10.18419/opus-4264The problem of mechanical and hydraulic noise in vane pumps has been presented. A separation of vanes from a cam ring turned out to be responsible for the mechanical noise. This phenomenon ha s been observed by means of an ultra-speed camera. Suggestions how to lower this kind of noise have been given. In turn, pressure variation both in displacing chambers and discharge side of a pump is regarded to be a main reason of hydr aulic noise. The methods of pressure pulsation measurement and noise emission due to pressure pulsation have also been discussed.eninfo:eu-repo/semantics/openAccessFlügelzellenpumpe , Lärmschutz670bookPart2014-10-27