Longitudinal and cross-sectional view of the D-245 engine

The figures show a longitudinal and cross-sectional view of the D-245 diesel engine

Longitudinal section of the diesel engine: 1 - liquid pump of the cooling system; 2 - drive belt of the generator and liquid pump; 3 - fan; 4 - thermostat housing cover; 5 - thermostat; 6 - cylinder head cover; 7 - inlet valve; 8 - outlet valve; 9 - turbocharger; 10 - crankcase ventilation valve; 11 - rocker arm; 12 - cap; 13 - cylinder head; 14 - pushrod; 15 - cylinder block: 16 - pushrod; 17 - camshaft; 18 - flywheel; 19 - clutch; 20 - flywheel housing; 21 - rear sheet; 22 - crankshaft; 23 - oil pan; 24 - crankshaft bearing cap; 25 - piston; 26 - connecting rod; 27 - connecting rod cap; 28 - oil receiver pipe; 29 - drain plug; 30 - oil pump; 31 - oil pump drive gear: 32 - crankshaft pulley; 33 - camshaft drive gear; 34 - gear cover; 35 - support

Technical characteristics of the D-245.12 diesel engine

Diesel engine type - Four-stroke turbocharged diesel engine

Method of mixture formation - Direct fuel injection

Number of cylinders - 4

Cylinder arrangement - In-line, vertical

Firing order of cylinders 1 - 3 - 4 - 2

Cylinder diameter - 110 mm

Piston stroke 125 mm

Cylinder displacement - 4.75 l

Direction of crankshaft rotation - Right

Compression ratio (calculated) - 15.1

Nominal power kW (hp) 80 (108.8)

Nominal speed 2400 min -1

Maximum torque 350 Nm

Speed ​​at maximum torque, min -1 1300-1700

Minimum stable speed at idle, min -1, no more than 800±50

Specific fuel consumption by external speed characteristic g / kW-h:

  • - minimum - 218;
  • - at nominal power - 245

Hourly fuel consumption at nominal power - 19.6 kg/h

Hourly fuel consumption at minimum stable idle speed, kg/h, no more than - 1.5

Nominal fuel injection advance angle, deg. to TDC - 19 ±1

Total oil consumption (including replacement) as a percentage of fuel consumption, no more than - 1.3

Oil consumption for burnout according to GOST 18509-88 as a percentage of fuel consumption, no more than - 0.5

Oil pressure in the main oil line at nominal diesel operating mode - 0.25-0.35 MPa

Dry diesel weight - 500 kg

Overall dimensions mm - 1011.5x702.0x1080.5

Cross-section of a diesel engine: 1 - oil filler neck; 2 - cap; 3 - rocker arm; 4 - electric torch device (ETD); 5 - ETF tank; 6 - branch pipe; 7 - injector; 8 - valve; 9 - high-pressure fuel pipe; 10 - high-pressure fuel pump (HPFP); 11 - fuel priming pump; 12 - rear sheet; 13 - cylinder block; 14 - oil sump; 15 - crankshaft; 16 - camshaft; 17 connecting rod; 18 - tappet; 19 - cylinder block liner; 20 - centrifugal oil filter; 21 - piston; 22 - intake manifold; 24 - exhaust manifold; 25 - turbocharger