AMMONIA REFRIGERATION COMPRESSOR AND TRANSFER PUMP LUBRICATING OIL BASED ON ALKYLATED NAPHTHALENES
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United States of America Patent
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Issued Date -
Jul 16, 2015
app pub date -
Jan 13, 2014
filing date -
Jan 13, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A lubricant composition comprising an alkylated naphthalene component and a mineral oil component and which is essentially free of ammonia reactive components is described. In certain examples, the lubricant composition is food grade. The lubricant compositions are particularly well suited for use in ammonia refrigeration compressors and ammonia refrigerant transfer pumps. The mineral oil has no more than about 60 percent of paraffinic compounds by weight of the mineral oil. When used to lubricate ammonia refrigeration compressors, the lubricant composition has an ISO VG of 46 to 100. When used to lubricate ammonia refrigerant transfer pumps, the lubricant composition has an ISO VG of 22 to 46.
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