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US 6,182,629 B2Granted
Method of making a cylinder liner
AssigneeFederal-Mogul Burscheid GmbH
InventorsFranz-Josef Gobbels, Werner Trubenach, Peter Godel, Manfred Fischer, Markus Müller
Life of this patent
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Abstract
A cylinder liner for an internal-combustion engine includes a tubular liner wall having circumferentially spaced thickened wall portions.
Claims1
A method of making a cylinder liner comprising the following steps:
- (a) providing a spraying tool and a mandrel;
- (b) effecting a first relative rotation of said spraying tool about said mandrel at a constant speed;
- (c) thermally spraying a liner material on said mandrel with said spraying tool during step (b) for forming a layer of a predetermined wall thickness;
- and
- (d) upon completion of step (c) discontinuing step (b) and effecting a second relative rotation of said spraying tool about said mandrel at a periodically inconstant speed for forming thickened wall portions at circumferentially spaced locations.
2 more elements
Dependencies are inferred from the claim text.