| Abstract | A rig was built to study the factors limiting high speed reciprocating pump operation. Various mechanical difficulties including seal leakage and bearing troubles were encountered with the rig. The limiting pumping speed of 19 f.p.s. which was reached could have been due to valve float or cavitation.
A new rig was designed incorporating positive valve gear, improved bearings and a different type of seal. With valve float eliminated as a variable, it should be possible to determine at what speed cavitation limits pumping with various symmetrical and asymmetrical piston head forms. Further tests should be made to investigate the effect of surface roughness, piston material, and air content of the water. |
|---|
