Title:
PRESSURISED FLUID FLOW SYSTEM FOR A NORMAL-CIRCULATION DOWN-THE-HOLE HAMMER AND HAMMER COMPRISING SAID SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/116460
Kind Code:
A4
Abstract:
A pressurized fluid flow system for a normal circulation down-the-hole hammer comprises a cylinder coaxially disposed in between an outer casing and a piston that reciprocates due to changes in pressure of the pressurized fluid contained inside of a front chamber and a rear chamber located at opposites sides' of the piston, wherein the flow into and out of these chambers is controlled solely by the overlap or relative position of the piston and the cylinder while a supply chamber and a discharge chamber defined by recesses on the inner surface of the outer casing and separated by a dividing wall respectively supply and discharge the pressurized fluid of the front and rear chambers.
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Inventors:
AROS JAIME ANDRES (CL)
Application Number:
PCT/CL2012/000009
Publication Date:
November 15, 2012
Filing Date:
March 02, 2012
Export Citation:
Assignee:
DRILLCO TOOLS S A (CL)
AROS JAIME ANDRES (CL)
AROS JAIME ANDRES (CL)
International Classes:
E21B4/14
Attorney, Agent or Firm:
MOLINA VILLASECA, Eduardo et al. (Av. Alfonso de Cordova 5151Piso, Las Condes 73 Santiago, CL)
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