FIELD: machine building.
SUBSTANCE: invention relates to lubricant compositions intended for aircraft transmission units. Disclosed is a transmission oil containing aviation oil B-3V consisting of a concentrate of antioxidant additives in basic pentaerytherite oil HA-10 according to CS 002-2005, granulated mercaptobenzothiazole as antiscoring additive and pentaerythritol base oil as per CS 001-2005. Additionally, sulfur-containing additive is introduced in the form of reaction product at temperature of 210–215 °C castor oil with sulfur recrystallised from toluene. Ratio of components in transmission oil is as follows, wt%: sulfur-containing additive 15–30; oil B-3V up to 100.
EFFECT: expansion of oil application temperature range from -59 to 200 °C while maintaining high viscosity and tribological characteristics.
1 cl, 2 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| LUBRICATING OIL FOR HELICOPTERS TRANSMISSIONS AND PROPELLER HINGES | 2020 |
|
RU2739323C1 |
| LOW-TEMPERATURE LUBRICATING OIL BASED ON POLYETHYLSILOXANE | 2021 |
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| GENERAL PURPOSE LUBRICATING COMPOSITION FOR TRANSMISSIONS AND HELICOPTER PROPELLERS | 1997 |
|
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|
RU2452767C1 |
| LUBRICATING COMPOSITION FOR HELICOPTER UNITS | 2001 |
|
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| GEAR LUBRICANT COMPOSITION | 2016 |
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| LUBRICANT COMPOSITION FOR AVIATION POWER INSTALLATIONS | 2008 |
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| TRANSMISSION OIL | 2012 |
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| LUBRICANT OIL FOR REDUCERS OF FLYING DEVICES | 2006 |
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RU2322481C1 |
| TRANSMISSION OIL | 2014 |
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RU2573829C1 |
