the National Natural Science Foundation(50504021);the Key Science and Technology Project of National Education Ministry(206122);the Science and Technology Project of Chongqing Education Committee(KJ070419)
The feasibility of the nozzle of self-excited oscillation pulsed jet (SEOPJ) as the breaker and loosing device for the air-lift pump was researched.The dynamic characteris- tics of the SEOPJ to crush the hard clay and...