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公开(公告)号:US5411383A
公开(公告)日:1995-05-02
申请号:US226713
申请日:1994-04-12
申请人: Aron T. Parnell , Gareth D. Thomas
发明人: Aron T. Parnell , Gareth D. Thomas
CPC分类号: F04C15/0076 , Y10T403/7075
摘要: A rotor and flexible drive shaft assembly for a progressive cavity pump or motor in which the rotor 10 is provided with an end portion 12 and the drive shaft 20 is provided with a head portion 18. A transverse spirally wound sheet metal pin 24 is engaged in the first passage 16 in the end portion 12 and a second passage 22 in the head portion 18, a retaining sleeve 26 preventing the pin from falling out, the retaining sleeve itself being held in place by a circlip 32.
摘要翻译: 用于渐进腔泵或电动机的转子和柔性驱动轴组件,其中转子10设置有端部12和驱动轴20设置有头部18.横向螺旋缠绕的金属片24与 端部12中的第一通道16和头部18中的第二通道22,防止销脱出的保持套26,保持套筒本身通过卡簧32保持就位。
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公开(公告)号:US5474432A
公开(公告)日:1995-12-12
申请号:US195367
申请日:1994-02-14
IPC分类号: F04C2/107
CPC分类号: F04C2/1075
摘要: A stator assembly for a progressive pump or motor, comprising a resilient material stator (10) having a helical bore (12) therethrough, the cylindrical outer surface (14) of the stator having a plurality of axially extending circumferentially spaced outward projections (16). A rigid generally tubular member (22) has cooperating recesses (24) and may be formed of a unitary tube or of a plurality of shell elements with a cooperating clamp arrangement (32-36). The side faces (18,20) of the projections are flat and either parallel to one another or are inclined towards one another in the radially outward direction.
摘要翻译: 一种用于渐进式泵或电动机的定子组件,包括具有穿过其中的螺旋孔(12)的弹性材料定子(10),定子的圆柱形外表面(14)具有多个沿轴向延伸的周向间隔开的向外突出部(16) 。 刚性的大体上呈管状的构件(22)具有配合的凹槽(24),并且可以由具有配合的夹紧装置(32-36)的整体管或多个外壳元件形成。 突起的侧面(18,20)是平坦的或彼此平行的或者在径向向外的方向上彼此倾斜。
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