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.
Specifications
| Number of cylinders | 6 | ||||
| Configuration | inline | ||||
| Cylinder bore, mm | 112 | ||||
| Piston stroke, mm | 149 | ||||
| Displacement, cc | 8,8 | ||||
| Compression Ratio | 16.1:1 | ||||
| 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 |
214,9 | 213,6 | 211,3 | 212,3 | — |
| Fuel pump | low pressure | ||||
| Fuel filters — 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).
Engine Operation:
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.