Abstract
This paper deals with the cavitation occurrence at V-shaped groove of valve plate in an axial piston pump. The cavitating jet from V-shaped groove was visualized using high speed video camera system. The detection of cavitation was also attempted by using AE (acoustic emission) sensors. The results obtained from the tests are as follows:
1) Caviation inception/desinence at V-shaped groove was visualized under actual pump operation at the operating pressure of 3MPa.
2) It was proved that cavitation inception and desinence are detectable by AE sensors.
