专利检索 ap:("ORMAT TECHNOLOGIES, INC.") AND inv:"Boris Polyak" 第 1 页

1.

发明授权
Well pumping apparatus and methods 有权

公开(公告)号：US11982286B2

公开(公告)日：2024-05-14

申请号：US18287497

申请日：2022-04-12

申请人： ORMAT TECHNOLOGIES, INC.

发明人： Benjamin Eilan , Boris Polyak , Nadav Darf , Alex Katz , Oren Ram

IPC分类号： F04D29/06 , F04D13/10 , F04D29/046

CPC分类号： F04D29/061 , F04D13/10 , F04D29/046 , F05D2230/64

摘要： A well pumping apparatus including a discharge head (110), a drive string rod (130) in fluid communication with an inner cavity (142) of a production tubing (140), a pre-lubrication port (160) at the discharge head, and lubrication cups (134) installed along the drive string rod adjacent to sets of bearings (150) distributed along the drive string rod.