Patent · US Active

Downhole motors with a lubricating unit for lubricating the stator and rotor

US8800688B2 · kind B2 · utility

1Cited by

35References

21Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Hendrik John · Buchs, CH
Harald Grimmer · Celle, DE

Key dates

Filing date	Jul 20, 2011
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Jul 9, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2/1073
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In aspects, the disclosure provides a drilling motor that includes a lubricating unit that selectively supplies a lubricant to the drilling fluid before the drilling fluid passes through the drilling motor so as to lubricate the stator and/or the rotor to reduce friction between the stator and the rotor and to reduce wear of the motor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.