HYDROPNEUMATIC PULSER Russian patent published in 1998 - IPC

FIELD: mining industry. SUBSTANCE: hydropneumatic pulser relates to devices used for intensification of mining loose minerals through bore-holes, and also to technology of water supply through bore-holes, and also to oil production industry for breaking clayey sedimentations in water-intake and oil-intake zones with aim at increasing inflow of liquid minerals to wells. Hydropneumatic pulser has agent-delivering pipe with proportioner having falling balls in its upper part and valve seats fastened in its lower part. Agent-delivering pipe is provided with gas-accumulator device which is installed above upper valve seat. Aforesaid gas-accumulator device is made in the form of circular partition and pipe which is connected to circular partition by its upper end. Ball-passing spaces of circular partition and pipe are combined. Gas-accumulator device can be made with enclosed resilient chamber located between circular partition and pipe. Enclosed resilient chamber can be provided with pressure regulator. Agent-delivering pipe can be provided with shut-off valve or deflector which is installed above gas-accumulator device. Lower end of pipe of gas-accumulator device has gas isolator. Utilization of aforesaid embodiment allows for creation of novel design of hydropneumatic pulser which is simple in manufacture and operation. It allows for producing gas-accumulator chambers of any calculated volumes for creating pulses of any energy value. EFFECT: higher efficiency. 4 cl, 4 dwg