专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US3930749A Turbodrill 失效
公开(公告)号：US3930749A
公开(公告)日：1976-01-06
申请号：US531968
申请日：1974-12-12
申请人： Moisei Timofeevich Gusman , Boris Georgievich Ljubimov , Igor Leonidovich Konstantinov , Irina Ivanovna Kuznetsova , Boris Davidovich Malkin , Gely Meierovich Nikitin
发明人： Moisei Timofeevich Gusman , Boris Georgievich Ljubimov , Igor Leonidovich Konstantinov , Irina Ivanovna Kuznetsova , Boris Davidovich Malkin , Gely Meierovich Nikitin
IPC分类号： E21B4/02 , F03B13/02
CPC分类号： E21B4/02 , F03B13/02 , Y10S415/903
摘要： A turbodrill comprises a housing in which there are fixed stators having blades forming a circular pattern and defining guide passages for the flow of drilling fluid fed by mud pumps, and a shaft mounted on a thrust bearing and having rotors fixed thereto, the blades of the rotors also forming a circular pattern and having the direction opposite to the stator blades so that the rotor rotates relative to the stator. The rotor and stator blades are shaped such a manner that an angle .theta. between the tangents to the middle line of the profile at the inlet and outlet edges of the blade determining the profile camber is selected in accordance with the relationship .theta. = 180.degree. - (from 4.5 to 7).alpha..sub.1, an angle .alpha..sub.2 between the line perpendicular to the axis of the pattern and the tangent to the middle line of the profile at the outlet edge of the blade is selected in accordance with the relationship .alpha..sub.2 = (from 3.5 to 6).alpha..sub.1, wherein .alpha..sub.1 is an angle between the line perpendicular to the axis of the pattern and the tangent to the middle line of the profile at the inlet edge thereof as measured in the direction towards the concave portion of the profile, and the ratio of maximum thickness ".DELTA." of the blade profile to the chord "1" thereof is selected within the range .delta./1 = from 0.09 to 0.19.
摘要翻译：涡轮轴承包括壳体，其中固定定子具有形成圆形图案的叶片，并且限定由泥浆泵供给的钻井液流动的引导通道，以及安装在推力轴承上并具有固定到其上的转子的轴，转子也形成圆形图案并且具有与定子叶片相反的方向，使得转子相对于定子旋转。转子和定子叶片的形状使得根据θ= 180°（θ= 180°）的关系来选择在叶片的入口和出口边缘处的轮廓的中间线的切线之间的角度θ，从4.5到7）α1，根据关系α2 =（...），选择在垂直于图案的轴线的线与叶片的出口边缘处的轮廓的中间线的切线之间的角度α2 从3.5到6）α1，其中α1是在垂直于图案的轴线的线和在其入口边缘处的轮廓的中间线的切线之间的角度，其沿着朝向凹部的凹部的方向并且在Δ/ 1 = 0.09〜0.19的范围内选择叶片轮廓的最大厚度“DELTA”与其弦“1”的比率。

IPRDB

热门服务

关于我们

友情链接

联系方式