| 摘要 |
<p>An air conditioning system is provided to prevent the liquid refrigerant from being injected into the compressor by closing the injection valve when the operation parameter value deviates from the normal driving range. An air conditioning system comprises a condenser in which refrigerant is condensed, a first expansion valve(141) in which the refrigerant passing through the condenser is throttled, a second expansion valve(142) in which the refrigerant passing through the first expansion valve is throttled, an evaporator in which the refrigerant passing through the second expansion valve is vaporized, a compressor(110) in which the refrigerant passing through the evaporator and the refrigerant which is branched and injected between the first and the second expansion valve are compacted, and an injection valve(143) in which the refrigerant branched between the first and the second expansion valve and injected to the compressor is throttled.</p> |
