4DX Generating Set Engine

Rated speed: 1500rpm

Engine model	4DX21-45D	4DX22-50D	4DX23-65D
Type	4-cylinder 4-stroke
Air intake type	Natural	Turbocharged	Turbo& intercooling
Cooling mode	Water cooling
Governor mode	Mechanical& electronic
Bore×Stroke(mm）	102×118
Compression ratio	17:1
Rated speed(rpm)	1500
Displacement(L)	3.86
Rated power(without fan)(kW)	33	37	48
Standby power(without fan)(kW)	36	41	53
Fuel consumption(g/kWh)	230	220	215
Oil consumption(L/h)	0.06	0.05	0.05
Steady state speed regulation(%)	≤5	≤5	≤5
Oil capacity including filter(L)	12.5	13	13
Emission compliant	StageⅡ
The flywheel shell interface	SAE3
The flywheel shell interface	Flywheel for 11.5″flexible coupling
Dry weight of base(kg)	350	380	380
Dry weight of Gen Pac(kg)	375	405	410
Overall dimension(base)(mm)	810×680×800	810×700×850
Overall dimension(G.P)(mm)	1155×680×835		1480×705×900
Fan consumption（kW）	2	2.5	3
27℃ air consumption（m3/min）	2.6	3.2	3.9
Heat rejection of exhaust（kW）	34.5	36.4	43.5
Exhaust gas temperature after turbine（℃）	580	480	480
Exhaust gas flow（m3/min）	8.3	8.4	10.4
Heat rejection from engine（kW）	2	2.6	3.3
Heat rejection of coolant（kW）	21.5	24.1	29
Base configuration	Standard configuration(add on the base)
Engine with fan	Intake and exhaust sysytem: Air filter and connecting pipes; Connecting flang of exhaust pipe
Alternator 35A 28V Starter motor 4.5kW 24V	Cooling system: Radiator with connecting pipes; Fan guard; Belt guard

Rated speed: 1800rpm

Engine model	4DX21-53D	4DX22-60D	4DX23-82D
Type	4-cylinder 4-stroke
Air intake type	Natural	Turbocharged	Turbocharged& intercooling
Cooling mode	Water cooling
Governor mode	Mechanical or electronic
Bore×Stroke(mm）	102×118
Compression ratio	17:1
Rated speed(rpm)	1800
Displacement(L)	3.86
Rated power(without fan)(kW)	39	45	60
Standby power(without fan)(kW)	43	50	66
Fuel consumption(g/kWh)	230	220	215
Oil consumption(L/h)	0.06	0.05	0.05
Steady state speed regulation(%)	≤5 or ≤3
Oil capacity including filter(L)	12.5	13	13
Emission compliant	StageⅡ
The flywheel shell interface	SAE3
The flywheel shell interface	Flywheel for 11.5″flexible coupling
Dry weight of base(kg)	350	380	380
Dry weight of Gen Pac(kg)	375	405	410
Fan consumption（kW）	2.2	2.5	3
Base configuration	Standard configuration(add on the base)
Engine with fan	Intake and exhaust sysytem: Air filter and connecting pipes; Connecting flang of exhaust pipe
Alternator 35A 28V Starter motor 4.5kW 24V	Cooling system: Radiator with connecting pipes; Fan guard; Belt guard