Instrumented belt tensioner roller device and associated monitoring method
First Claim
1. A belt tensioner roller device provided with a fixed support able to hold the device on an engine block, with moving parts that can move with respect to the fixed support, with a rotary roller supported by the moving parts and intended to be in contact with the belt, and with a component able to exert a permanent force between the fixed support and the moving parts, wherein the rotary roller comprises a target element, the fixed support comprising at least one sensor element mounted facing the target element of the roller with a gap and collaborating with the said target element to detect belt wear as a function of displacement of the rotary roller with respect to the fixed support.
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Accused Products
Abstract
The belt tensioner roller device is provided with a fixed support able to hold the device on an engine block, with moving parts that can move with respect to the fixed support, with a rotary roller supported by the moving parts and intended to be in contact with the belt, and with a component able to exert a permanent force between the fixed support and the moving parts. The rotary roller comprises a target element, and the fixed support comprises at least one sensor element mounted facing the target element of the roller with a gap and collaborating with the said target element to detect belt wear as a function of displacement of the rotary roller with respect to the fixed support.
61 Citations
15 Claims
- 1. A belt tensioner roller device provided with a fixed support able to hold the device on an engine block, with moving parts that can move with respect to the fixed support, with a rotary roller supported by the moving parts and intended to be in contact with the belt, and with a component able to exert a permanent force between the fixed support and the moving parts, wherein the rotary roller comprises a target element, the fixed support comprising at least one sensor element mounted facing the target element of the roller with a gap and collaborating with the said target element to detect belt wear as a function of displacement of the rotary roller with respect to the fixed support.
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14. A belt tensioner roller device provided with a support able to hold the device on an engine block, with moving parts that can move with respect to the support, with a rotary roller supported by the moving parts and including a belt groove, and with a component able to exert a permanent force between the support and the moving parts, wherein the rotary roller comprises a encoder element, the support comprising at least one sensor element mounted facing the encoder element of the roller with a gap and collaborating with the said encoder element to detect belt wear as a function of displacement of the roller with respect to the support.
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15. A method for monitoring belt wear comprising the steps during which a permanent tensile force is exerted between a fixed support and moving parts that can move with respect to the fixed support and that are in contact with the belt, wherein belt wear is detected directly as a function of displacement of the rotary roller relative to the fixed support.
Specification