Title:
BEARING STATE MONITORING DEVICE, TURBOCHARGER, AND BEARING STATE MONITORING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/174632
Kind Code:
A1
Abstract:
A bearing state monitoring device monitors the state of a thrust bearing that holds a rotation axis in a thrust direction. The bearing state monitoring device comprises a first temperature sensor for measuring the temperature of the thrust bearing, and a computing device that counts the number of times of that an evaluation index relating to a thrust load based on measurement values of the first temperature sensor has exceeded a permissible value, and outputs that there is an abnormality in the state of the thrust bearing in a case where the number of times counted exceeds a threshold value. Note that the computing device may count only cases where a state of the thrust load exceeding an upper limit load continues for a predetermined amount of time or longer, as the number of times.
Inventors:
YANO SEIGI (JP)
ISHII YUTA (JP)
SUZUKI JUN (JP)
FUTAE TAKAYA (JP)
YAKUSHIJI SHUNSUKE (JP)
DAMMOTO YOSUKE (JP)
ISHII YUTA (JP)
SUZUKI JUN (JP)
FUTAE TAKAYA (JP)
YAKUSHIJI SHUNSUKE (JP)
DAMMOTO YOSUKE (JP)
Application Number:
PCT/JP2019/007679
Publication Date:
September 03, 2020
Filing Date:
February 27, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F16C41/00; F02B39/14; F02B39/16; F16C17/24
Foreign References:
| JP2002168242A | 2002-06-14 | |||
| JP2013044414A | 2013-03-04 | |||
| JP2017048803A | 2017-03-09 | |||
| JPH0698590A | 1994-04-08 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
Download PDF:
Previous Patent: INTERFACE DEVICE EQUIPPED WITH FUNCTION OF CONVERTING SIGNAL OF ELEVATOR
Next Patent: RIGIDITY VARIABLE APPARATUS
Next Patent: RIGIDITY VARIABLE APPARATUS