Patent · US Active

Hydraulic tools including inserts and related methods

US9784269B2 · kind B2 · utility

2Cited by

3References

20Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Joerg Lehr · Sulingen, DE
Dirk Froehlich · Sehnde, DE
Carsten Hohl · Sehnde, DE

Key dates

Filing date	Jan 6, 2014
Grant date	Oct 10, 2017
Priority date	—
Expiry date	Aug 29, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05C2251/10
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A hydraulic tool includes a stator and a rotor rotatably disposed within the stator. At least one of at least an inner portion of the stator and at least an outer portion of the rotor includes an insert comprising a hard material. A method of forming a hydraulic tool includes attaching at least one insert comprising a hard material to a surface of a stator or a surface of a rotor. A downhole motor or pump includes a stator and a rotor. The stator includes at least one insert comprising a hard material disposed over at least a portion of an interior surface thereof and a matrix material at least partially surrounding the at least one insert. The rotor includes at least one insert disposed over at least a portion of an exterior surface thereof and a matrix material at least partially surrounding the at least one insert.

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