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US 2022/0178329 A1Published application
Multiple piece piston
AssigneeWoodward, Inc.
InventorsSeth Berger, Joseph Thomas Kopecek
Life of this patent
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Abstract
The subject matter of this specification can be embodied in, among other things, an assembly that includes a piston having a piston inner surface defining a cylindrical cavity and includes a first axial portion, a piston face at a first end of the first axial portion, a second axial portion at a second end of the first axial portion, and a helical piston thread defined upon the piston inner surface, a bushing configured to contact the piston inner surface, and a lock nut configured to engage the piston and the bushing.
Claims10
A method of assembling a piston assembly, the method comprising:
- inserting a bushing into a cylindrical cavity defined by a piston inner surface of a piston;
- contacting the piston inner surface with a bushing outer surface of a tubular cylindrical body of the bushing;
- threading a lock nut onto a helical piston thread defined upon the piston;
- and
- rotationally engaging a cylindrical first collection of tines arranged upon an axial end of the bushing, and a cylindrical second collection of tines arranged upon an axial end of the lock nut.
2 more elements
Dependencies are inferred from the claim text.