To provide a refrigeration cycle device, which uses a constant speed compressor and capillary tubes, capable of securing reliability of the compressor by suppressing the rise of a discharge temperature of the compressor at low cost at the time of an overload, even when it comes into a state of overload where the discharge temperature of the compressor surpasses a predetermined reference value because of the change in an environmental temperature and the like.
The refrigeration cycle device has a configuration in which a constant speed compressor 1 and capillary tubes 5 and 7 are used, and a heat exchange mechanism 8 for exchanging heat between a high pressure side cooling medium and a low pressure side cooling medium of the capillary tubes is installed. Thereby, even when it comes into a state of overload where a discharge temperature of the constant speed compressor 1 surpasses a predetermined reference value because of a change in an environmental temperature and the like, the rise of the discharge temperature of the compressor can be suppressed without using a solenoid valve, so that the refrigeration cycle device with high reliability can be achieved at low cost.
FUJITAKA AKIRA
KAWABE YOSHIKAZU
Daisuke Nagano
Kentaro Fujii
Next Patent: REFRIGERATION DEVICE