E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 6/00 (2006.01) B25D 9/12 (2006.01) B25D 16/00 (2006.01)
Patent
CA 2717654
The invention relates to a hammer drill that comprises a shank (9) connected to at least one drill rod (12) including a tool (13) to be brought into contact with a rock to be drilled (14), a guiding device (16) for the shank (9), and a fluid injection circuit adapted for supplying an injection fluid from a fluid supply duct (15) up to the tool (13) and the rock to be drilled (14) in order to extract, upon drilling, the rock debris out of the drilling hole, wherein the injection fluid is to be in contact with the guiding device and the shank. The hammer drill includes an anode (23) provided in the fluid injection circuit and in contact with the injection fluid, the anode being arranged so as to ensure a cathodic protection of the metal surfaces of the guiding device (16) and/or the shank (9) against a corrosive attack caused by the injection fluid.
Ce marteau perforateur comprend un emmanchement (9) relié à au moins une barre de forage (12) comportant un outil (13) destiné à être en contact d'une roche à perforer (14), un dispositif de guidage (16) de l'emmanchement (9), et un circuit d'injection de fluide conçu pour amener un fluide d'injection d'une conduite d'amenée de fluide (15) jusqu'à l'outil (13) et la roche à perforer (14) de manière à extraire, durant le forage, les débris de roche hors d'un trou de forage, le fluide d'injection étant destiné à être en contact avec le d ispositif de guidage et l'emmanchement. Le marteau perforateur comprend une anode (23) disposée dans le circuit d'injection de fluide et destinée à être au contact du fluide d'injection, l'anode étant agencée de façon à réaliser une protection cathodique des surfaces métalliques du dispositif de guidage (16) et/ou de l'emmanchement (9) contre une attaque corrosive due au fluide d'injection.
Montabert
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
Rotary-percussive hydraulic hammer drill does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary-percussive hydraulic hammer drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary-percussive hydraulic hammer drill will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2045651