Hydraulic hammer

Details Hydraulic hammer Hydraulic hammer

E - Fixed Constructions

21

B

E21B 4/14 (2006.01)

Patent

CA 2048374

ABSTRACT This invention concerns hydraulic hammers which have particular but not exclusive application in down-the-hole drills. The basis of the invention is that the hammer assembly includes means for applying intermittent hydraulic pressure on one side of the piston and compressible means for constantly applying pressure to/the opposite side of the piston. In the down-the-hole drill application the compressible means will be a gas and either this gas or the hydraulic fluid used to flush the drill bit.

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