METHOD OF ESTIMATION OF MOTOR FUEL TENDENCY TO HIGH TEMPERATURE DEPOSITS GENERATION Russian patent published in 2017 - IPC G01N33/22 

FIELD: test equipment.

SUBSTANCE: method includes diesel fuel supplying from a predetermined height in a drip-liquid state at atmospheric pressure to the air heated to the motor grain operating temperature at an interval equal to the drop free time of fall during which heating, evaporation, ignition, combustion and thermo-oxidative transformation of the fuel drop occur, measuring the mass of deposits on a heated inclined plate made of a catalytically active material. The supply of the test motor fuel in the drip-liquid state is carried out from a point remote from the center of the heated plate by a distance chosen depending on the group of test fuel. For gasoline, this distance is taken to be equal to 0.6 times the height of the diesel fuel supply, and for aviation kerosene it is equal to 0.8 times the height of the diesel fuel supply.

EFFECT: increased accuracy and reliability of estimating the tendency of fuels to form high temperature deposits in the cylinder zone of the internal combustion engine, depending on the group of fuels used.

1 dwg, 1 tbl