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2 329 477

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IPC

G01K11/06(2006-01-01)

G01N21/17(2006-01-01)

(21) (22)

Application

2006134321/28, 2006-09-28

(24)

Start date

2006-09-28

(22)

Actual filing date

2006-09-28

(45)

Published

2008-07-20

(72)

Inventor

Martalov Aleksej SergeevichBratkov Anatolij AndreevichGolovchenko Larisa Evgen'EvnaVorotnikova Gel'Sina DavljatshevnaKrasnaja Ljudmila Vasil'EvnaOstrovskaja Vera Mikhajlovna

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Gosudarstvennyj Nauchno-Issledovatel'Skij Institut Ministerstva Oborony Rossijskoj Federatsii" Primeneniju Topliv, Masel, Smazok I Spetsial'Nykh Zhidkostej-Gosnii Po Khimmotologii)

METHOD OF MINERAL MOTOR OIL POUR-POINT TEMPERATURE DETERMINATION FOR AUTOMOTIVE ENGINEERING Russian patent published in 2008 - IPC G01K11/06 G01N21/17

Abstract RU 2329477 C1

FIELD: instrument engineering.

SUBSTANCE: invention relates to instrument engineering and can be applied in analytical laboratories when mineral motor oil pour-point temperature is determined for automotive engineering. The essence of invention is that analytical curve is built to show pour-point temperature dependence from the known concentration of pour-point depressant "ПМА "Д". Minimum allowable freezing temperature value for mineral motor oil base is assigned and concentration of pour-point depressant "ПМА "Д" is defined based on calculating formula and using difference of optical densities in the analyzed oil samples in absorption bands 1731 cm^-1 (experimental data for depressant "ПМА "Д") and 2000 sm^-1. Then, pour-point temperature is found against analytical curve and obtained temperature value is added to the given minimum allowable pour point temperature value of analysed mineral motor oil. The outcome is accepted as pour point temperature value of analysed mineral motor oil.

EFFECT: reduction of analysis time due to skipping of cooling and preliminary preparation of sample.

2 dwg

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RU 2 329 477 C1

Authors

Martalov Aleksej Sergeevich

Bratkov Anatolij Andreevich

Golovchenko Larisa Evgen'Evna

Vorotnikova Gel'Sina Davljatshevna

Krasnaja Ljudmila Vasil'Evna

Ostrovskaja Vera Mikhajlovna

Dates

2008-07-20—Published

2006-09-28—Filed