FAN WITH MEANS FOR MONITORING WEAR
First Claim
1. Fan comprising a support structure, a wheel, a shaft, a drive motor, and at least one ball-bearing, the wheel being carried by the shaft which is coupled to the drive motor and the at least one ball-bearing which is interposed between the shaft and the support structure, the support structure comprising an outer conduit and a bulb-like portion, the outer conduit enclosing the bulb-like portion, the bulb-like portion being having a chassis for supporting the drive motor and the wheel, the outer conduit and the bulb-like portion delimiting an annular channel for circulation of air which is caused to move by the wheel, the annular channel delimiting an inner space, the fan comprising means for monitoring the fatigue of the at least one bearing,wherein the means for monitoring the ageing comprise:
- a sensor for measuring a mechanical parameter which is representative of the dynamic behaviour of the at least one bearing, which sensor is arranged in the inner space delimited by the annular channel for circulation of the air;
a processing chain which is connected to the measurement sensor and which is capable of calculating at least one indicator which is representative of the vibration behaviour of the at least one bearing based on the parameter measured and evaluating the at least one indicator which is representative of the vibration behaviour of the at least one bearing from the sensor with respect to at least one predetermined criterion.
1 Assignment
0 Petitions
Accused Products
Abstract
The fan comprises a support structure, a wheel which is carried by a shaft which is coupled to a drive motor and at least one ball-bearing which is interposed between the shaft and the support structure, the support structure comprising an outer conduit which encloses a bulb-like portion which has a chassis for supporting the drive motor and the wheel, the outer conduit and the bulb-like portion delimiting an annular channel for circulation of air which is caused to move by the wheel, the fan comprising means for monitoring the ageing of the bearings.
The means for monitoring the ageing comprise:
- a sensor for measuring a mechanical parameter which is representative of the dynamic behaviour of the or each bearing, which sensor is arranged in the inner space delimited by the annular channel for circulation of the air;
- a processing chain which is connected to the measurement sensor and which is capable of calculating at least one indicator which is representative of the vibration behaviour of the bearing based on the parameter measured and evaluating the or each indicator which is representative of the vibration behaviour of the bearing from the sensor with respect to at least one predetermined criterion.
11 Citations
10 Claims
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1. Fan comprising a support structure, a wheel, a shaft, a drive motor, and at least one ball-bearing, the wheel being carried by the shaft which is coupled to the drive motor and the at least one ball-bearing which is interposed between the shaft and the support structure, the support structure comprising an outer conduit and a bulb-like portion, the outer conduit enclosing the bulb-like portion, the bulb-like portion being having a chassis for supporting the drive motor and the wheel, the outer conduit and the bulb-like portion delimiting an annular channel for circulation of air which is caused to move by the wheel, the annular channel delimiting an inner space, the fan comprising means for monitoring the fatigue of the at least one bearing,
wherein the means for monitoring the ageing comprise: -
a sensor for measuring a mechanical parameter which is representative of the dynamic behaviour of the at least one bearing, which sensor is arranged in the inner space delimited by the annular channel for circulation of the air; a processing chain which is connected to the measurement sensor and which is capable of calculating at least one indicator which is representative of the vibration behaviour of the at least one bearing based on the parameter measured and evaluating the at least one indicator which is representative of the vibration behaviour of the at least one bearing from the sensor with respect to at least one predetermined criterion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification