SYSTEM FOR ADDITIONAL PREPARATION OF ENGINE START (EMBODIMENTS) AND METHOD OF HEATING ENGINE OIL AND DIESEL FUEL (EMBODIMENTS) Russian patent published in 2019 - IPC F02N19/04 F01M5/02 

FIELD: machine building.

SUBSTANCE: invention relates to systems facilitating start-up of engines operating at low temperatures, including in autonomous use of vehicles remote from permanent deployment areas. Autonomous ICE start-up preparation additional system (ASPAS) (Fig. 1) consists of pre-start heater series-connected in the circuit, circuit of operation of which is not included in the ICE cooling system of the following articles: pre-start liquid heater (13); heat carrier tank (11) with a control discharge valve performing the functions of maintenance and control in the ASPAS system (Fig. 1) required amount thereof; fuel tank (15) for operation of pre-start liquid heater (13) with control discharge valve performing the functions of maintenance and control in the system of ASPAS (Fig. 1) required amount thereof; or convector (5) (liquid) in engine pan for heat transfer from heat carrier (11) to heated medium (motor oil) (2) and/or convector (liquid) (7) in fuel tank, in close proximity to fuel intake, for heat transfer from heat carrier (11) to heated medium (diesel fuel) (8); pipelines for supply and removal of heat carrier (6 and 10) to/from convectors (or 5 and/or 7), connecting elements, fittings ensuring tight connection of system elements. Truncated ICE start-up preparation additional system (TSPAS) (Fig. 2) consists of the pre-start-up heater series-connected into the circuit, the circuit of operation of which is series-connected in the PIG, the following items: or convector (5) (liquid), placed in engine pan for heat transfer from heat carrier (11) to heated medium (engine oil) (2), and/or convector (7) (liquid), arranged in fuel tank, in close proximity to fuel intake, for heat transfer from heat carrier (11) to heated medium (diesel fuel) (8); pipelines for supply and removal of heat carrier (6 and 10) to/from convectors (or 5 and/or 7); connecting elements, fittings ensuring tight connection of system elements. Methods of heating engine oil or diesel fuel are considered.

EFFECT: invention provides reduced viscosity of oil (2) and high temperature of diesel fuel (8) in the area of fuel intake in fuel tank, higher efficiency of systems of prestart heaters.

28 cl, 2 dwg