发明名称 |
OIL COOLING APPARATUS FOR REFRIGERATION SCREW COMPRESSOR |
摘要 |
The invention relates to improvements in a refrigeration system having an oil cooled screw compressor from which mixed oil and compressed refrigerant issues to an oil separator via a discharge duct, and wherein a refrigerant pump draws liquid refrigerant from the high pressure receiver and delivers it to the discharge duct to cool the oil and desuperheat the refrigerant. The refrigerant pump and a hydraulic motor that drives it are in a single sealed housing. The hydraulic motor is energized with pressure oil from the oil pump whereby oil is returned to the compressor from the oil separator. Oil flow to the hydraulic motor is throttled in accordance with output from a temperature sensor at the discharge duct, to maintain a constant temperature of oil-refrigerant mixture passing to the oil separator. A standpipe arrangement prevents cavitation at the refrigerant pump. |
申请公布号 |
SE8207389(D0) |
申请公布日期 |
1982.12.23 |
申请号 |
SE19820007389 |
申请日期 |
1982.12.23 |
申请人 |
VILTER MANUFACTURING CORPORATION |
发明人 |
P G * SZYMASZEK |
分类号 |
F04C29/02;F04C11/00;F04C29/04;F25B1/047;F25B43/02 |
主分类号 |
F04C29/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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