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专利申请号 :982 0 382 7 授权公告号 :2 38176 8用于钻机的一机两泵正反循环系统 本实用新型包括动力输出装置、注水泵和抽水泵。原动机的动力通过所述动力输出装置可同时驱动注水泵或抽水泵旋转 ,使钻井机械根据不同的地质条件既可实现正循环钻进作业 ,又可实现反循环
Patent application number: 982 0 382 7 Authorization notice number: 2 38176 8 One machine two pump positive and negative circulation system for drilling rig The utility model comprises a power output device, a water injection pump and a water pump. The motive power of the prime mover can simultaneously drive the water injection pump or the pumping pump to rotate through the power output device, so that the drilling machine can realize the positive circulation drilling operation and the reverse circulation according to different geological conditions