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US 10,968,991 B2Granted
Cam follower with polycrystalline diamond engagement element
AssigneeXR Downhole, LLC
InventorsDavid P. Miess, Gregory Prevost, Michael Williams
Life of this patent
Estimating the term…
Abstract
A cam follower is provided. The cam follower includes a polycrystalline diamond element, including an engagement surface. The engagement surface of the polycrystalline diamond element is positioned on the cam follower for sliding engagement with an opposing engagement surface of a cam. The cam includes at least some of a diamond reactive material.
Claims26
A cam assembly comprising:
- a cam follower, the cam follower comprising polycrystalline diamond;
- and
- a cam having a metal surface, the metal surface comprising a metal or metal alloy that includes at least 2 wt. % of diamond catalyst or diamond solvent;
- wherein the polycrystalline diamond is in sliding engagement with the metal surface.
1 more element
A method of interfacing engagement between a cam and a cam follower, the method comprising:
- providing the cam follower, the cam follower comprising polycrystalline diamond;
- providing the cam, the cam having a metal surface, the metal surface comprising a metal or metal alloy that includes at least 2 wt. % of diamond catalyst or diamond solvent;
- engaging a surface of the polycrystalline diamond with the metal surface;
- and
- rotating the cam;
- wherein, during rotation of the cam, the surface of the polycrystalline diamond is in sliding engagement with the metal surface.
3 more elements
A cam assembly comprising:
- a cam follower, the cam follower comprising polycrystalline diamond having a surface;
- and
- a cam having a metal surface, the metal surface comprising a metal or metal alloy that includes at least 2 wt. % of iron, titanium, cobalt, nickel, ruthenium, rhodium, palladium, chromium, manganese, copper, tantalum, or alloys thereof;
- wherein the surface of the polycrystalline diamond is in sliding engagement with the metal surface.
1 more element
Dependencies are inferred from the claim text.