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    • 4. 发明申请
    • Internally dampened percussion rock drill
    • 内部挫伤打击乐凿岩机
    • US20090223720A1
    • 2009-09-10
    • US12150908
    • 2008-05-01
    • William N. PattersonGlenn Patterson
    • William N. PattersonGlenn Patterson
    • E21B4/14B25D9/00B23B47/00
    • B25D9/18B25D17/245
    • A percussion drill, and methods of using the same, including a shank in mechanical alignment with a piston-hammer and a valve in fluid communication with the piston-hammer. The percussion drill further includes an internal hydraulic dampening system for reducing the velocity of the piston-hammer when the shank is forward of a power position relative to the velocity of the piston-hammer when the shank is in a power position. Preferably, the internal hydraulic dampening system includes mechanical alignment of a portion of the piston-hammer with a port in fluid communication with the valve, operable to reduce fluid flow into an area surrounding the valve when the piston-hammer is forward of its position relative to its normal operation.
    • 冲击钻及其使用方法,包括与活塞锤机械对准的柄和与活塞锤流体连通的阀。 冲击钻还包括内部液压阻尼系统,用于当柄处于动力位置时相对于活塞锤的速度在柄处于功率位置的前方时降低活塞锤的速度。 优选地,内部液压阻尼系统包括活塞锤的一部分与与阀流体连通的端口的机械对准,可操作以当活塞锤位于其相对位置的前方时减少流入围绕阀的区域的流体 到正常运行。
    • 6. 发明申请
    • INTERNALLY DAMPENED PERCUSSION ROCK DRILL
    • 内部防震冲击钻
    • US20100116520A1
    • 2010-05-13
    • US12689362
    • 2010-01-19
    • William N. PattersonGlenn Patterson
    • William N. PattersonGlenn Patterson
    • E21B4/14
    • B25D9/18B25D17/245
    • A percussion drill, and methods of using the same, including a shank in mechanical alignment with a piston-hammer and a valve in fluid communication with the piston-hammer. The percussion drill further includes an internal hydraulic dampening system for reducing the velocity of the piston-hammer when the shank is forward of a power position relative to the velocity of the piston-hammer when the shank is in a power position. Preferably, the internal hydraulic dampening system includes mechanical alignment of a portion of the piston-hammer with a port in fluid communication with the valve, operable to reduce fluid flow into an area surrounding the valve when the piston-hammer is forward of its position relative to its normal operation.
    • 冲击钻及其使用方法,包括与活塞锤机械对准的柄和与活塞锤流体连通的阀。 冲击钻还包括内部液压阻尼系统,用于当柄处于动力位置时相对于活塞锤的速度在柄处于功率位置的前方时降低活塞锤的速度。 优选地,内部液压阻尼系统包括活塞锤的一部分与与阀流体连通的端口的机械对准,可操作以当活塞锤位于其相对位置的前方时减少流入围绕阀的区域的流体 到正常运行。