UNIVERSAL AUTOMATIC CONTROLLED HYDRO-PNEUMATIC HAMMER Russian patent published in 2011 - IPC E21C37/00 E02F5/30 

FIELD: machine building.

SUBSTANCE: universal automatic controlled hydro-pneumatic hammer - HPH - consists of case with working tool encased in it, of striker, of rod, of working cylinder with working piston, and of cover of compression chamber for metering system of lubrication with oil channels. Also, the HPH contains a control unit - CU including a rotary-pinion sensor of oil volumetric rate of flow -OVRFS wherein there are built in induction sensors of electric signals of control of working mode electric valves - WMEV, striker notch SNEV and an automatic device for inaccuracy reset of the OVRFS.

EFFECT: simplicity of fabrication and assembly, high repair ability, and reliability in operation.

2 dwg