Systems and devices using hard bearings

Patent metadata

Field	Value
Publication number	US-10030704-B2
Application number	US-201515122662-A
Country	US
Kind code	B2
Filing date	Mar 4, 2015
Priority date	Mar 4, 2014
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

Aspects of the disclosure can relate to an apparatus including a first member having a first bearing surface formed from a hard material (e.g., a diamond-based material, such as a polycrystalline diamond material), and a second member coupled to an input shaft to translate (e.g., rotate, slide, etc.) with respect to the first member. The second member has a second bearing surface formed from a hard material, and the second bearing surface is to bear against the first bearing surface. In embodiments of the disclosure, the first and second members can be for devices including, but not necessarily limited to: solenoids, generators and/or motors (e.g., out-runner radial flux generators, axial flux generators, radial flux generators/motors, roller vane motors, etc.), gearboxes, rotary data swivels, digital actuators, filters (e.g., inner rotating filters), valves (e.g., proportional valves), sensors (e.g., pressure differential sensors), and so forth.

First claim

What is claimed is:

1. An apparatus comprising:
a first member comprising a first bearing surface formed from a hard material; and
a second member coupled to an input shaft to translate with respect to the first member, the second member comprising a second bearing surface formed from a hard material, the second bearing surface to bear against the first bearing surface, wherein the first bearing surface and the second bearing surface define a clearance for filtering fluid flow therebetween.

2. The apparatus as recited in claim 1 , wherein the first member is decoupled from a housing in which the first member is positioned.

3. The apparatus as recited in claim 2 , further comprising an O-ring coupled with the first member for decoupling the first member from the housing.

4. The apparatus as recited in claim 1 , wherein the second member is to rotate with respect to the first member.

5. The apparatus as recited in claim 1 , wherein the second member is to slide with respect to the first member.

6. The apparatus as recited in claim 1 , wherein the hard material comprises at least one of a diamond-based material or a tungsten carbide material.

7. The apparatus as recited in claim 1 , wherein the hard material comprises a polycrystalline material.

8. The apparatus as recited in claim 1 , wherein the first member and the second member are for at least one of a solenoid, a generator, a motor, an out-runner radial flux generator, an axial flux generator, a radial flux generator/motor, a diamond roller vane motor, a gearbox, a rotary data swivel, a digital actuator, a filter, a valve, or a sensor.

9. The apparatus as recited in claim 1 , wherein the first member comprises a third bearing surface formed from a hard material, and the second member coupled to the input shaft comprises a fourth bearing surface formed from a hard material, the fourth bearing surface to bear against the third bearing surface.

10. An apparatus comprising:
a first member comprising a first bearing surface and a second bearing surface formed from a hard material; and
a second member coupled to an input shaft to translate with respect to the first member, the second member comprising a third bearing surface and a fourth bearing surface formed from a hard material, the third bearing surface to bear against the first bearing surface and the fourth bearing surface to bear against the second bearing surface, wherein at least one of the first bearing surface and the third bearing surface or the second bearing surface and the fourth bearing surface define a clearance for filtering fluid flow therebetween.

11. The apparatus as recited in claim 10 , wherein the first member is decoupled from a housing in which the first member is positioned.

12. The apparatus as recited in claim 11 , further comprising an O-ring coupled with the first member for decoupling the first member from the housing.

13. The apparatus as recited in claim 10 , wherein the second member is to rotate with respect to the first member.

14. The apparatus as recited in claim 10 , wherein the second member is to slide with respect to the first member.

15. The apparatus as recited in claim 10 , wherein the hard material comprises at least one of a diamond-based material or a tungsten carbide material.

16. The apparatus as recited in claim 10 , wherein the hard material comprises a polycrystalline material.

17. The apparatus as recited in claim 10 , wherein the first member and the second member are for at least one of a solenoid, a generator, a motor, an out-runner radial flux generator, an axial flux generator, a radial flux generator/motor, a diamond roller vane motor, a gearbox, a rotary data swivel, a digital actuator, a filter, a valve, or a sensor.

18. An apparatus comprising:
a first member comprising a first bearing surface formed from a hard material;
a second member coupled to an input shaft to translate with respect to the first member, the second member comprising a second bearing surface formed from a hard material, the second bearing surface to bear against the first bearing surface wherein the first bearing surface and the second bearing surface define a clearance between 0.0005 in (0.0127 mm) and 0.0025 in (0.0635 mm) for filtering fluid flow therebetween; and
an O-ring coupled with the first member for decoupling the first member from a housing in which the first member is positioned.

19. The apparatus as recited in claim 18 , wherein the hard material comprises at least one of a diamond-based material or a tungsten carbide material.

20. The apparatus as recited in claim 18 , wherein the first member comprises a third bearing surface formed from a hard material, and the second member coupled to the input shaft comprises a fourth bearing surface formed from a hard material, the fourth bearing surface to bear against the third bearing surface.

Assignees

• Schlumberger Technology Corp

Inventors

• Hall David R
• Marshall Jonathan D
• Dahlgren Scott S
• Manwill Daniel
• Boswell R Craig
• Woolston Scott Richard

Classifications

• F16C17/02

  for radial load only · CPC title

• F16C2352/00

  Apparatus for drilling · CPC title

• F16C2361/91

  Valves · CPC title

• F16C29/02

  Sliding-contact bearings · CPC title

• E21B4/006

  Mechanical motion converting means, e.g. reduction gearings (E21B4/10 takes precedence) · CPC title