| 摘要 |
<p>An air conditioner (1) including a plurality of high-pressure shell type compressors comprising a first compressor (3) to operate continuously during an air conditioning operation of the air conditioner, and at least one second compressor (16) to operate in parallel with the first compressor (3), if necessary, during the air conditioning operation, the second compressor (16) having an internal pressure established in a shell of the second compressor in a stopped state of the second compressor such that the internal pressure is maintained above a suction pressure of the second compressor, the air conditioner further including a bypass tube (26) to connect a suction tube connected to a shell of the first compressor (3) and a suction tube connected to the shell of the second compressor (16). By the bypass tube (26), it is possible to surely prevent oil from being left in a suction tube of a compressor or suction tubes of compressors in a stopped state of the compressor or compressors during operation of the air conditioner to prevent compression of oil from occurring in the compressor or compressors, and thus, to surely prevent the compressor or compressors from being damaged due to compression of oil.</p> |
