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US 2012/0070272 A1Published application
Method for producing metal elements, in particular sealing elements
AssigneeFederal-Mogul Sealing Systems GmbH
InventorRolf Prehn
Life of this patent
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AssigneeFederal-Mogul Sealing Systems GmbH
InventorRolf Prehn
Estimating the term…
A method for producing metallic elements, and more particularly sealing elements, wherein a sheet metal strip or a foil strip having a predefinable length, width, and thickness is generated and the sheet metal strip or foil strip is formed to obtain a tube, the mutually opposing end regions or parts, or the entire contact surface of the sheet metal strip or foil strip, are connected to each other non-positively or positively or by bonding, or combinations thereof, and the entire length of the tube, or portions thereof, is subjected to a mechanical shape-forming process so that predefinable contours are introduced into the outer or inner circumferential surface of the tube in defined locations by a means, and the tube is divided into an appropriate number of individual elements, and in particular sealing elements, especially sealing rings for turbochargers.
(canceled)
The turbocharger having a sealing ring according to claim 9, wherein in the method of producing the sealing ring the mechanical shaping process comprises forming grooves of predetermined contour by means of a multi-roller shaping apparatus.
The turbocharger having a sealing ring according to claim 9, wherein in the method of producing the sealing ring the dividing of the tube is by roller-cutting.
The turbocharger having a sealing ring according to claim 9, wherein in the method of producing the sealing ring the dividing of the tube is by laser cutting.
The turbocharger having a sealing ring according to claim 9, wherein in the method of producing the sealing ring the dividing of the tube is by water jet cutting.
-8. (canceled)
A turbocharger having a sealing ring produced by a method comprising forming a sheet metal strip or foil strip into a tube as an intermediate product, operatively connecting mutually opposed or overlapping ends or end regions of the tube, by a mechanical shaping process contouring at least a portion of an outer or an inner circumferential surface of the tube along at least a portion of the length of the tube, and dividing the tube into a plurality of elements comprising respective turbocharger sealing rings.
Dependencies are inferred from the claim text.