CAT C9 ACERT industrial engine manufactured by Caterpillar (USA) – 6-cylinder, in-line, 4-stroke, direct injection, turbocharged with air-to-air aftercooling, electronic control unit (ADEM ™ A4), HEUI ™ fuel system, high efficiency of oil filters, lighter design of the cylinder block, split connecting rods.
Engine power Caterpillar C9 – 278-381 HP at a crankshaft rotation speed of 1800-2200 rpm. The engine meets Tier 3 (US EPA) and Stage IIIA (European Union requirements) emission standards using Advanced Combustion Emissions Reduction Technology (ACERT). It covers 4 systems to reduce the toxicity of exhaust gases and covers:
- fuel system;
- fuel combustion process;
- clean air intake system;
- implementation of an electronic control and management system.
|Number of cylinders||6|
|Cylinder bore, mm||112|
|Piston stroke, mm||149|
|Engine operating mode *||A||B||C||D||E|
|Power output, kW (hp)||205 (278)||224 (304)||242 (329)||261 (355)||280 (381)|
|Crankshaft speed, rpm||1800-2200|
|Specific fuel consumption, g/(kW*h)
at 1800 rpm at 100% power
|Fuel pump||low pressure|
— fine cleaning
|top quality, 2 microns|
|Turbine||Turbocharging with air-to-air cooling system|
|Cooling system||Thermostats and housing, vertical outlet|
|Cooling system volume, liters||13.9 (without radiator filling volume)|
|Water pump||centrifugal water pump, water pump inlet|
|Oil system volume, liters||32|
|Dimensions, mm (LxWxH)||1091,4х827,2х1022,8|
|Weight, kg||776 (dry weight)|
IND – A mode (continuous operation) – the mode of continuous operation of the engine in severe conditions, when the engine is operated at maximum power and maximum speed up to 100% of the working time, without interruption or periodic load reduction.
IND – B mode – engine operation mode, in which the power and (or) rotation speed periodically decrease in comparison with the maximum value (the duration of operation at full load does not exceed 80% of the total operating time).
IND – C mode (intermittent mode) – operation of the engine with a periodic increase in power and (or) speed to maximum values (duration of operation at full load does not exceed 50% of the total operating time).
IND – D mode – engine operation mode, in which periodic increase in power to the maximum value is allowed (duration of operation at full load does not exceed 10% of the total operation time).
IND – E mode is a mode in which maximum power is required for a short period of time for starting or in the event of a sudden overload. For emergency operation where the normal power level is not sufficient (run time at full load does not exceed 5% of the total run time).
The power of this engine is achieved due to the volume, and not by strong forcing, which as a result significantly reduces the load on the engine parts and has a positive effect on fuel consumption. The redesigned fuel system has improved fuel economy by 4% over the previous version. The use of a variable speed supercharger allows for maximum torque from 1800 rpm. Compression brake extends pad life with 381 hp engine braking power. High quality workmanship improves the reliability of the engine.