Method for testing the resistance of a tyre to pressure loss
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsJose Merino Lopez, Michel Ahouanto
Life of this patent
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Abstract
A method for testing a punctured tyre's resistance to a loss in pressure includes: creating a plurality of punctures in a wall of the tyre by inserting a plurality of puncturing objects through the wall; running the tyre with the puncturing objects in the wall thereof over a given distance with a regulated inflation pressure; stopping the running of the tyre; and determining, for each puncture, a pressure loss resistance index based on an estimate of a leak rate of the puncture.
Claims23
A method for testing a resistance of a tyre to a loss in pressure following puncturing of the tyre, the method comprising steps of:
- creating a plurality of punctures in a wall of the tyre by inserting a plurality of puncturing objects through the wall;
- running the tyre with the puncturing objects in the wall thereof over a given distance;
- regulating an inflation pressure of the tyre during the running step;
- stopping the running of the tyre;
- and,
- after completing the running step, determining, for each puncture, a pressure loss resistance index based on an estimate of a leak rate of the puncture,
- wherein the puncturing objects are ejectable from the wall of the tyre during the running step, and
- wherein the puncturing objects include a combination of 8 to 30 screws and nails of different diameters.
Dependencies are inferred from the claim text.