Continuous purification of motor oils using a three-phase separator

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United States of America Patent

PATENT NO 10696918
APP PUB NO 20160304805A1
SERIAL NO

15102130

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Abstract

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A method for continuous purification of motor lubricant oil includes circulating lubricant oil between a motor lubricant oil tank and a motor; transporting contaminated lubricant oil from the motor lubricant oil tank in a cleaning loop. The transport in the cleaning loop includes adding at least one liquid separation aid to contaminated lubricant oil; supplying contaminated lubricant oil to a three-phase centrifugal separator; continuously separating contaminants from the lubricant oil in the separator and continuously discharging a first liquid phase including purified lubricant oil from a liquid light phase outlet of the separator, continuously discharging a second liquid phase including solid contaminants from a liquid heavy phase outlet of the separator and continuously discharging a sludge phase from a sludge outlet by the aid of a conveyor screw of the three-phase separator. The method further includes transporting the first liquid phase including purified oil back to the lubricant oil tank. The present invention further provides a system for carrying out the method.

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Patent Owner(s)

Patent OwnerAddress
ALFA LAVAL CORPORATE ABLONGDE SWEDEN LUND SKANE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Englund, Mats Stockholm, SE 2 6
Wase, Claes Tullinge, SE 7 101

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