Valve seat installation tool system

Patent metadata

Field	Value
Publication number	US-12345338-B2
Application number	US-202217884390-A
Country	US
Kind code	B2
Filing date	Aug 9, 2022
Priority date	Aug 9, 2022
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

A valve seat installation tool is disclosed. The valve seat installation tool includes a force conversion shaft extending from a shaft front surface to a shaft rear surface along a central axis, a torque nut secured to the force conversion shaft adjacent to the shaft front surface, a head adjacent to the shaft rear surface and a pump adapter secured to the force conversion shaft between the torque nut and the head.

First claim

What is claimed is:

1. A valve seat installation tool comprising:
a force conversion shaft extending from a shaft front surface to a shaft rear surface along a central axis;
a torque nut fixedly secured to the force conversion shaft adjacent to the shaft front surface structured and arranged to transfer rotational force to the force conversion shaft; and
a pump adapter secured to the force conversion shaft between the torque nut and the shaft rear surface.

2. The valve seat installation tool of claim 1 , wherein the torque nut is welded to the force conversion shaft.

3. The valve seat installation tool of claim 1 , wherein the force conversion shaft comprises a shaft set of threads extending along at least a portion of an outside surface of the shaft in an axial direction parallel to the central axis.

4. The valve seat installation tool of claim 3 , wherein the pump adapter comprises a pump adapter inner surface defined by a pump adapter hole extending along the central axis;
wherein a pump adapter set of inner threads extends along at least a portion of the pump adapter inner surface in an axial direction parallel to the central axis, the pump adapter set of inner threads being structured and arranged to form a threaded connection with the shaft set of threads.

5. The valve seat installation tool of claim 4 , wherein the threaded connection is structured and arranged to move the pump adapter along the force conversion shaft in the axial direction along the central axis in response to the rotation of the force conversion shaft.

6. The valve seat installation tool of claim 1 , wherein the pump adapter is releasably secured to the force conversion shaft.

7. The valve seat installation tool of claim 1 , wherein the shaft rear surface is in contact with a head.

8. The valve seat installation tool of claim 7 , wherein the head is inserted into a valve seat of a pump body.

9. A method of installing a valve seat with a valve seat installation tool recited in claim 1 comprising:
inserting the valve seat into a pump body;
inserting a head into the valve seat;
securing a pump adapter of claim 1 to a pump opening of the pump body;
securing a force conversion shaft of claim 1 to the pump adapter, wherein the force conversion shaft extends from the shaft front surface to the shaft rear surface along the central axis and the pump adapter is secured between the shaft front surface and the shaft rear surface;
inserting the force conversion shaft into the pump body such that the force conversion shaft moves along the central axis relative to the pump adapter until the shaft rear surface comes in contact with the head;
attaching a socket of a torque wrench to the torque nut secured to the force conversion shaft adjacent to the shaft front surface; and
rotating in a first direction the torque nut with the socket.

10. The method of claim 9 , wherein the torque nut is welded to the force conversion shaft.

11. The method of claim 9 , wherein the force conversion shaft comprises a shaft set of threads extending along at least a portion of an outside surface of the shaft in an axial direction parallel to the central axis.

12. The method of claim 11 , wherein the pump adapter comprises a pump adapter inner surface defined by the pump adapter hole extending along the central axis;
wherein a pump adapter set of inner threads extends along at least a portion of a pump adapter inner surface in an axial direction parallel to the central axis, the pump adapter set of inner threads being structured and arranged to form a threaded connection with the shaft set of threads.

13. The method of claim 12 , wherein the threaded connection is structured and arranged to move the pump adapter along the force conversion shaft in the axial direction along the central axis in response to rotation of the force conversion shaft.

14. The method of claim 9 , wherein the pump adapter is releasably secured to the force conversion shaft.

15. The method of claim 9 , wherein the head extends from a rear end to a front end, the rear end being in contact with the valve seat and the front end comprising a head recess structured and arranged to receive the shaft rear surface.

16. The method of claim 9 , wherein the torque nut is rotated until a predetermined torque value is measured.

17. The method of claim 16 , wherein the predetermined torque value is based on a property of the valve seat.

18. The method of claim 9 , wherein the pump adapter is secured relative to the force conversion shaft by a threaded connection between a pump adapter set of outer threads and the pump opening of the pump body, the pump adapter set of outer threads extending along at least a portion of a pump adapter outer surface in an axial direction parallel to the central axis.

19. The method of claim 9 , wherein the torque wrench comprises at least one torque multiplier.

20. The method of claim 9 , wherein rotation in the first direction of the force conversion shaft moves the force conversion shaft in an axial direction relative to the pump adapter along the central axis toward the valve seat.

Assignees

• Kennametal Inc

Inventors

• Poremski Jacob
• Tomon Adam

Classifications

• F16K15/06

  with guided stems · CPC title

• F16K1/385

  contacting in the closed position, over a substantial axial length, a seat surface having the same inclination · CPC title

• F04B53/10

  Valves; Arrangement of valves · CPC title

• B25B27/062

  using screws · CPC title

• F04B1/0452

  Distribution members, e.g. valves (machines or pumps with cam-actuated distribution members at the outer ends of the cylinders F04B1/0472; machines or pumps with cam-actuated distribution members at the inner ends of the cylinders F04B1/0531; the piston-driving cams being provided with inlets and outlets F04B1/0535) · CPC title