公开(公告)号：US20160208798A1

公开(公告)日：2016-07-21

申请号：US14913416

申请日：2014-08-22

Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

Inventor： WALLACE GREGORY SAWYER ,  DAVID B. DOONER

IPC: F04C2/107

CPC classification number: F04C2/1075 ,  F04C2/1071 ,  F04C2250/201 ,  F05C2225/04 ,  F05C2253/04

Abstract: Various examples are provided for progressive cavity pumps and motors. In one example, among others, a progressive cavity pump (or motor) includes a stator having a hyperboloidal internal bore including a plurality of spiral lobes, and a rotor comprising a plurality of spiral lobes positioned within the hyperboloidal internal bore of the stator. A longitudinal axis of the rotor is non-planar, non-parallel, and non-intersecting with a longitudinal axis of the stator. The stator can include an elastomeric material coating the hyperboloidal internal bore of the stator, which can reduce the effect of friction and abrasion during operation. The elastomeric material can include fluoro-based elastomers, other elastomeric materials or combinations thereof. For example, a fluoromonomer such as tetrafluoroethylene (TFE) or a fluoropolymer such as polytetrafluoroethylene (PTFE) can be used. The rotor can be configured to allow for displacement to adjust an interference fit between the rotor and the stator.

Abstract translation: 针对渐进腔泵和马达提供了各种实例。 在一个示例中，除其他之外，渐进式空腔泵（或电动机）包括具有包括多个螺旋叶片的双曲面内孔的定子，以及包括定位在定子的双曲面内孔内的多个螺旋叶片的转子。 转子的纵向轴线是非平面的，非平行的，并且与定子的纵向轴线不相交。 定子可以包括涂覆定子的双曲面内孔的弹性体材料，其可以在操作期间减少摩擦和磨损的影响。 弹性体材料可以包括氟基弹性体，其它弹性材料或其组合。 例如，可以使用四氟乙烯（TFE）等含氟单体或聚四氟乙烯（PTFE）等含氟聚合物。 转子可以构造成允许位移调节转子和定子之间的过盈配合。