COMPRESSOR DEGRADATION DIAGNOSTIC DEVICE AND COMPRESSOR DEGRADATION DIAGNOSTIC METHOD

WIPO Patent Application WO/2017/098577

A1

This compressor degradation diagnostic device is equipped with: a refrigerant circuit which includes a compressor; an operational state quantity detection unit; a storage unit which stores a first stability determination condition and an initial value for degradation determination; a calculation unit which generates a determination reference value and a determination index on the basis of a plurality of operational state quantities, the first stability determination condition, and the initial value; and a determination unit which determines the degradation of the compressor. If the transition states of the plurality of operational state quantities do not satisfy the first stability determination condition during the initial operation of the refrigerant circuit, the calculation unit identifies an unstable operational state quantity, newly sets a second stability determination condition on the basis of the transition state of the unstable operational state quantity, and generates the determination reference value by correcting the initial value using a correction value which is calculated using the data wherein the transition states of the plurality of operational state quantities satisfy the second stability determination condition.

NAKAMURA TAKAHARU (JP)
SAITO MAKOTO (JP)
TOYOSHIMA MASAKI (JP)
KOMATSU KAZUHIRO (JP)
KOBORI SHINGO (JP)
ARAI YOHSUKE (JP)

PCT/JP2015/084380

June 15, 2017

December 08, 2015

Click for automatic bibliography generation  

MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)

F25B49/02; F04B49/10

JP2015212594A	2015-11-26
JP2015148394A	2015-08-20
JP2014214970A	2014-11-17

SOGA, Michiharu et al. (JP)

View/Download PDF      PDF Help

Previous Patent: PRESENTATION DEVICE, PRESENTATION METHOD, NON-TRANSITORY COMPUTER-READABLE INFORMATION RECORDING MED...

Next Patent: POWER AMPLIFIER