PULSE-TYPE WATER JET Russian patent published in 1995 - IPC

FIELD: breaking of rocks by pulse-type water stream. SUBSTANCE: water jet has the shank 1, arranged in the hydraulic acceleration chamber 2, the plunger 24 with a drive unit, the pneumatic cylinder 12, the pneumatic piston 11, the inertial connector 33. The pneumatic cylinder 12 is mounted with possibility of reciprocation motion, and it is joined with the plunger 24. The pneumatic piston 11 is secured to the supporting rod 9, and it is arranged in the pneumatic cylinder with a restriction of the over piston cavity 13 and under piston cavity 14. The hydraulic pneumatic accumulator 33 is connected with the hydraulic acceleration chamber 2. The cavities 13, 14 are mutually joined through the spool-type mechanism 19. EFFECT: enlarged using range. 1 cl, 2 dwg