Tapered valve seat
AssigneeKerr Machine Co.
InventorsMark S. Nowell, Christopher Todd Barnett, Kelcy Jake Foster, Michael Eugene May, Michael Cole Thomas
Life of this patent
Estimating the term…
Abstract
A valve seat. The valve seat is used in a fluid end of a fracturing pump. The external surface of the valve seat has a tapered portion that retains the valve seat in the fluid end. The external surface also has a portion that is substantially cylindrical. A hardened insert is integrated into a strike face of the valve seat. The tapered portion is at a first end of the valve seat and the tapered portion is at a second end of the valve seat. The second end of the valve seat may be formed such that its exterior surface does not contact the fluid end.
Claims6
A valve seat configured to be disposed within a pump assembly, the valve seat comprising:
- an annular body having a first end, a second end, and an intermediate portion disposed between the first end and the second end, in which:
- the first end defines a tapered exterior surface having a frusto-conical first taper conforming to a portion of the pump assembly;
- the second end defines an internally disposed strike face and a cylindrical exterior surface;
- and
- the intermediate portion is characterized by an exterior surface situated at a convex angle relative to the cylindrical exterior surface of the second end and situated at a convex angle relative to the tapered exterior surface of the first end;
- and
- an insert disposed within the second end of the body, in which the insert is harder than the body and in which a portion of the insert is integrated with the strike face.
A valve seat configured to be disposed within a pump assembly, the valve seat comprising:
- an annular body having a first end, a second end, and an intermediate portion disposed between the first end and the second end, in which:
- the first end defines a tapered exterior surface having a frusto-conical first taper conforming to a portion of the pump assembly;
- and
- the second end defines an internally disposed strike face and a first exterior surface;
- and
- the intermediate portion is characterized by a second exterior surface;
- in which the first exterior surface and the second exterior surface intersect and form a first angle;
- and
- in which the second exterior surface and the tapered exterior surface intersect and form a second angle;
- and
- in which the second exterior surface has a second taper from the first angle to the second angle;
- an insert disposed within the second end of the body, in which the insert is harder than the body and in which a portion of the insert is integrated with the strike face.
Dependencies are inferred from the claim text.