Mitsubishi Electric Corporation

Shun Kato

Daisuke Ito

Akira Ishibashi

Naoki Nakagawa

Shin Nakamura

Yusuke Shimazu

Masanori Nakata

Hirotoshi Yano

Hiroki Ishiyama

An apparatus maintenance management system includes a plurality of apparatuses each configured to transmit information on its own operation and information on the presence or absence of an abnormality, and a remote processor configured to acquire and store the information of each of the apparatuses. The remote processor is configured to restrict communication by using authentication keys of at least one type having a master-slave relationship, and perform communication with, as a communication partner, each of a first communication device to which one of the authentication keys that functions as a master for at least one of the apparatuses is given in advance and a second communication device to which another one of the authentication keys that functions as a slave for the first communication device is given in advance. When performing communication, the remote processor determines a range of the information to be provided to the communication partner according to the type and the master-slave relationship of the authentication key that the communication partner has.

Apparatus maintenance management system

An oil separator has a filter portion in a differential pressure generation mechanism configured to collect, by a differential pressure, lubricating oil that is in a form of mist included in high-pressure refrigerant that flows in a first pipe that is connected to a discharge port of a compressor and allows the collected lubricating oil to move downstream along an internal wall of the first pipe.

Oil separator and refrigeration cycle apparatus

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Tokyo, Japan

Shun Kato