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2 221 841

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IPC

(21) (22)

Application

2002118649/04, 2002-07-10

(24)

Start date

2002-07-10

(22)

Actual filing date

2002-07-10

(45)

Published

2004-01-20

(72)

Inventor

Ostrikov V.V.Tupotilov N.N.Matytsin G.D.

(73)

Holder

Gosudarstvennoe Nauchnoe Uchrezhdenie Vserossijskij Nauchno-Issledovatel'Skij I Proektno-Tekhnologicheskij Institut Po Ispol'Zovaniju Tekhniki I Nefteproduktov V Sel'Skom Khozjajstve

METHOD OF PURIFYING MOTOR OIL OF AGEING PRODUCTS AND IMPURITIES Russian patent published in 2004 - IPC

Abstract RU 2221841 C1

FIELD: motor oils. SUBSTANCE: method recommended for use at enterprises utilizing automobile and tractor equipment consists in that preheated (preferably to 70-75 C) oil is supplemented by 0.5-1.0% of 50% aqueous solution of thiourea, whereupon oil is stirred for at least 30 min while simultaneously being heated to 100-105 C. EFFECT: improved oil purification quality without draining oil from engine carter. 2 cl, 1 dwg, 2 tbl

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RU 2 221 841 C1

Authors

Ostrikov V.V.

Tupotilov N.N.

Matytsin G.D.

Dates

2004-01-20—Published

2002-07-10—Filed