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US 2006/0185636 A1Published application
Manufacturing a rocker lever using cold forming and welding
AssigneeGen Tek Technologies Marketing, Inc.
InventorsJohn Brune, Scott Smith
Life of this patent
Estimating the term…
Abstract
A method and system for forming a rocker assembly includes cold forming a metal blank to produce a portion of the rocker assembly. This portion has a tubular portion that rotatably engages a shaft and an arm that couples with a pushrod. This portion is welded to a valve lever to form the rocker assembly.
Claims19
A rocker assembly for an engine comprising:
- a tubular member having a first axial end, a second axial end, and an integrally formed arm adjacent said first axial end;
- and
- a valve lever coupled to said tubular member adjacent said second axial end and opposite of said arm.
A method of manufacturing a cam-engaged rocker comprising:
- obtaining a metal blank, said metal blank defined, at least in part, by a first surface, an opposing second surface, a peripheral surface intersecting both said first surface and said second surface, and a projection, wherein said metal blank contains a predetermined amount of a metal;
- and
- forming at least a portion of said metal blank by exerting a force on said metal blank adjacent said first surface, wherein a tubular portion is formed by the flow of a portion of said metal.
A method of manufacturing a cam-engaged rocker comprising:
- obtaining an annular metal blank, said annular metal blank defined, at least in part, by an outer cylindrical surface, an inner cylindrical surface a valve end, and a cup end, wherein said annular metal blank contains a predetermined amount of a metal;
- and
- forming a projection on said annular metal blank by exerting a force on at least a portion of said annular metal blank adjacent said cup end, wherein a projection is formed by the flow of a portion of said metal, the projection extending from a tubular portion.
Dependencies are inferred from the claim text.