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公开(公告)号:US4744752A
公开(公告)日:1988-05-17
申请号:US759606
申请日:1985-07-26
申请人: Shozo Nakayama , Hiroo Watanabe , Toshiki Tawa , Shusuke Hashimoto , Katsumi Suzuki , Teruji Nakai
发明人: Shozo Nakayama , Hiroo Watanabe , Toshiki Tawa , Shusuke Hashimoto , Katsumi Suzuki , Teruji Nakai
CPC分类号: A61C1/0038
摘要: A control device for use in an air turbine dental handpiece comprising an air turbine which is integrated with a spindle supporting a cutting tool and is rotatably supported in a head housing by bearings, an air supply passage which supplies compressed air to the air turbine and an exhaust passage which discharges air spent to drive the air turbine, the control device being characterized in that the control device comprises a pressure or flowrate regulating device disposed in the exhaust passage to control the speed of the turbine in the range of stop to high-speed operation by changing the back pressure of the air turbine.
摘要翻译: 一种用于空气涡轮机牙齿手柄的控制装置,包括:空气涡轮机,其与支撑切割工具的主轴一体化,并通过轴承可旋转地支撑在头部壳体中;空气供应通道,其向空气涡轮机提供压缩空气;以及 所述排气通道排出用于驱动所述空气涡轮机的空气,所述控制装置的特征在于,所述控制装置包括设置在所述排气通道中的压力或流量调节装置,以在停止到高速的范围内控制所述涡轮机的速度 通过改变空气涡轮机的背压进行操作。