An air-conditioning device includes (i) a compressor, (ii) an outdoor heat exchanger, (iii) an indoor heat exchanger and an electronic expansion valve, (iv) a bypass passage communicatively connecting a middle compression chamber and a low pressure space, the middle compression chamber being a chamber to accommodate a refrigerant undergoing compression by the compressor, the low pressure space being a space to accommodate the refrigerant having a pressure lower than a pressure of the refrigerant in the middle compression chamber, (v) a bypass valve to open or close the bypass passage, and (vi) a controller to execute setting of a degree of opening of the electronic expansion valve based on a degree of superheat of a refrigerant. Based on a change from a closed state of the bypass valve to an open state of the bypass valve, the controller starts restriction processing in which the degree of opening of the electronic expansion valve is corrected to a value that is less, by a given degree θa of opening, than a value set by the degree-of-superheat control.
AIR-CONDITIONING DEVICE, RAILWAY VEHICLE AIR-CONDITIONING DEVICE, AND METHOD FOR CONTROLLING AIR-CONDITIONING DEVICE
KLIMAANLAGE, SCHIENENFAHRZEUGKLIMAANLAGE UND VERFAHREN ZUR STEUERUNG EINER KLIMAANLAGE
DISPOSITIF DE CLIMATISATION, DISPOSITIF DE CLIMATISATION DE VÉHICULE FERROVIAIRE ET PROCÉDÉ DE COMMANDE DE DISPOSITIF DE CLIMATISATION
2022-08-03
Patent
Electronic Resource
English
European Patent Office | 2018
|AIR CONDITIONING DEVICE FOR RAILWAY VEHICLE AND RAILWAY VEHICLE INCLUDING AIR CONDITIONING DEVICE
European Patent Office | 2015
|AIR CONDITIONING DEVICE FOR RAILWAY VEHICLE AND AIR CONDITIONING METHOD FOR RAILWAY VEHICLE
European Patent Office | 2023
|Railway vehicle air conditioning management system and railway vehicle air-conditioning device
European Patent Office | 2020
|RAILWAY VEHICLE AIR CONDITIONING MANAGEMENT SYSTEM AND RAILWAY VEHICLE AIR-CONDITIONING DEVICE
European Patent Office | 2019
|