METHOD AND DEVICE FOR DETERMINING THE QUALITY OF FUEL Russian patent published in 2017 - IPC F02D41/04 F02D41/38 F02M45/00 F02M37/00 

FIELD: measuring equipment.

SUBSTANCE: in application a method and apparatus for determining the quality of fuel for the diesel engine (10) of the internal combustion engine are described, in which fuel is supplied from a fuel tank (12) of low pressure in the tank (22a, 30) of high pressure and is injected in at least one cylinder (18) motor (10), and controlling the amount of fuel injected into said cylinder (18) is provided by a control valve (24). In the proposed method serves to compare the actual value (S_24) control valve control signal (24) with a reference value (S_ref) control signal control valve (24) and to determine the fuel quality parameter from the difference (ΔS) between the actual value (S_24) and a reference value (S_ref) control signal control valve (24) and/or the difference between the actual value of the gradient of the pressure increase (P_inj) at the stage of raising the vessel (22a) of the high pressure and the reference gradient value pressure rise (P_ref) in the chamber (22a) of the high pressure.

EFFECT: ensuring fuel quality assessment without the use of additional devices.

21 cl, 8 dwg