초록 ▼

The refrigeration apparatus according to the invention has a main refrigeration line comprising a compressor, a condenser which are installed outdoor, and a decompression device, an evaporator and a refrigerant flow rate control valve which are installed indoor, all connected in a loop. The main ref

The refrigeration apparatus according to the invention has a main refrigeration line comprising a compressor, a condenser which are installed outdoor, and a decompression device, an evaporator and a refrigerant flow rate control valve which are installed indoor, all connected in a loop. The main refrigerant line is provided with an auxiliary refrigerant line that connects the input side of the decompression device in the main refrigerant line with the inlet side of the compressor via a bypass valve. The lowering in the suction pressure of the compressor is detected if it happens, and the pressure is restored by opening the bypass valve by throttling the refrigerant flow rate control valve, so that the compressor may be kept on running.

대표청구항 ▼

A refrigeration apparatus having a main refrigerant line which comprises a compressor, a condenser, an expansion device, and an evaporator all arranged in a loop, characterized in that said refrigeration apparatus further comprises: a refrigerant flow rate control valve installed at the outlet side

A refrigeration apparatus having a main refrigerant line which comprises a compressor, a condenser, an expansion device, and an evaporator all arranged in a loop, characterized in that said refrigeration apparatus further comprises: a refrigerant flow rate control valve installed at the outlet side of said evaporator; an auxiliary refrigerant line for bypassing said evaporator and refrigerant flow rate control valve, having a refrigerant-line opening-closing means, an expansion means, and an auxiliary evaporator, and installed between the outlet side of said condenser and the outlet side of said refrigerant flow rate control valve, and that said compressor is run without interruption by opening the refrigerant-line opening-closing means as the suction pressure of the compressor lowers below predetermined value.