Patent ID: 11953054
Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A bearing condition monitoring device for monitoring a condition of a thrust bearing for holding a rotational shaft in a thrust direction, the device comprising:
a first temperature sensor for measuring a temperature of the thrust bearing; and
an arithmetic device for counting a frequency at which an evaluation index of a thrust load on the basis of a measurement value by the first temperature sensor exceeds an allowable value, and for outputting an abnormality in the condition of the thrust bearing if the counted frequency exceeds a threshold; and
a storage device for storing reference data showing a relationship between the thrust load and the temperature of the thrust bearing,
wherein the arithmetic device calculates the thrust load from the measurement value by the first temperature sensor based on the reference data and counts the frequency at which the calculated thrust load serving as the evaluation index exceeds the allowable value.