Few people know about this monster as high as a four-story building. The Wärtsilä 300 RT-flex96C is a two-stroke low-speed turbocharged diesel engine developed by the Finnish manufacturer Wärtsilä.
This "crumb" is intended for large container ships running on fuel oil. The largest version of this 14-cylinder engine is 13.5 meters high, 26.59 meters long and weighs over 2,300 tons. The largest piston engine in the world produces neither more nor less - as much as 80,080 kW (107,390 hp). This 14-cylinder version of the engine entered service in September 2006 aboard the Emma Maersk, the largest container ship in the world.
The design of the 300 RT-flex96C engine actually has more in common with railway engineering as it does not use a camshaft, timing chains, fuel pumps and hydraulic drive. All this ensures maximum performance at low rpm, thereby reducing fuel consumption and emissions. The engine lubrication is separate: different lubricants are used in the cylinders and crankcase.
In this case, the cylinders are constantly lubricated by injecting a small amount of consumable lubricant. This was done to protect against cylinder wear and to neutralize the acids formed during the combustion of high-sulfur fuel, which is usually used in marine engines. Also, the RTA96C uses a single high-pressure fuel line, and the fuel is supplied to the cylinders using solenoid valves. In 2006, more than 300 300 RT-flex96C and older RTA96C motors were already in operation.
Configuration: 2-stroke turbocharged diesel engine, 6 to 14 cylinders.
Cylinder volume: _____________________ 1,820 liters per cylinder.
Engine speed: __________ 22-102 rpm.
Average effective pressure: ________ 1.96 MPa at full load.
Maximum efficiency: __________ 85% load (1.37 MPa).
Average piston speed: _____________ 8.5 meters per second.
Specific fuel consumption: _____________ 171 g / kWh.
Power (kW per cylinder): ___________ up to 5720 (kW / c).
Total power: ____________________ 80,080 kW (108,920 hp).
Torque: ___________________ 7,603,850 Nm @ 102 rpm.
Specific power: __________________ 29.6 to 34.8 kW per ton.
Crankshaft weight: ______________________ 300 tons.
Piston weight: ________________________ 5.5 tons.
Piston height: _____________________ 6 meters.
Fuel mass per cycle (cylinder): ______ 160 g / c at full load.
" />
Here it is worth remembering the well-known "Titanic", which showed the latest achievements in the field of marine technology at that time. The Titanic was equipped with two four-cylinder triple expansion steam engines and a low-pressure, low-pressure steam turbine. Its piston engines ran at 75 rpm and generated a total of 55,000 horsepower.