Drill rig and a method for controlling a fan therein
AssigneeAtlas Copco Rock Drills AB
InventorHenrik Jacobsson
Life of this patent
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Abstract
In a method for controlling at least one fan (13) for the regulation of the cooling demand of at least two cooling elements (12) included in a drill rig (1), the cooling demand of each one of the cooling elements (12) being determined, that the determined cooling demands are weighted together and that the fan (13) is controlled based on the weighting together. At least one cooling element is equipped with a safety thermostat, which, if required, prevents undercooling by the fact that the fluid in question is not allowed to circulate in this cooling element. Also described is a drill rig for the execution of the above-mentioned method.
Claims20
Method for controlling at least one fan for the regulation of the cooling demand of at least two cooling elements which are cooled by respective fluids and comprised in a drill rig, the cooling demand of each one of the cooling elements being determined, the determined cooling demands are weighted together and the fan is controlled based on said weighting together, wherein at least one of said cooling elements is equipped with a safety thermostat, which prevents undercooling by the fact that a respective fluid is not allowed to circulate in said at least one cooling element.
A drill rig comprising an engine, at least two cooling elements and at least one fan, a control unit being arranged to control the fan based on a weighting together of current cooling demands in the cooling elements, wherein at least one of said cooling elements is equipped with a safety thermostat in order to prevent undercooling by not allowing circulation of a respective fluid in said at least one cooling element.
Dependencies are inferred from the claim text.