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CRANKSHAFT Wärtsilä-Sulzer RTA96-C Diesel Marine Engines

CRANKSHAFT Wärtsilä-Sulzer RTA96-C Diesel Marine Engines

CRANKSHAFT Wärtsilä-Sulzer RTA96-C Diesel Marine Engines



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The two-stroke turbocharged low-speed diesel engine known as the Wärtsilä RT-flex96C was created by the Finnish company Wärtsilä. Large container ships that use heavy fuel oil are intended for it. The largest 14-cylinder model has a length of 26.59 meters, a height of 13.5 meters, and a weight of almost 2,300 tonnes. It has an output of 80.08 megawatts. It is the biggest reciprocating engine ever built.

Onboard the Emma Maersk, the 14-cylinder variant made its official debut in commercial service in September 2006. Using common rail technology instead of the conventional camshaft, chain gear, fuel pump, and hydraulic actuator systems, the design is identical to the older RTA96C engine. In addition to maximizing performance at lower revolutions per minute (rpm), this also lowers fuel consumption and harmful pollutants.

The always-vertical piston rods form a tight seal beneath the pistons thanks to the crosshead bearings in the engine. As a result, the engine's lubrication is divided: the cylinders and the crankcase each employ a unique lubricant that is tailored specifically for its assigned function. By continuously timing the injection of consumable lubricant, the cylinders are kept from wearing down and the acids produced during the combustion of commonly used high-sulfur fuels are neutralized. By minimizing sideways forces on the piston, the crosshead design keeps diametral cylinder liner wear to under 30 micrometers per 1,000 hours.

For the nearby cylinders, incoming combustion air is compressed as a piston falls. This relieves part of the stress on the bearings by cushioning the piston as it approaches bottom dead center. By using exhaust valves that are driven by electronically controlled hydraulics, the engine is uniflow-scavenged, doing away with the camshaft.

  1. Configuration Straight two-stroke diesel engine with turbocharging and 6 to 14 cylinders
  2. 960 mm (38 in) of bore
  3. Stroke length: 2,500 mm (8.2 ft)
  4. Displacement 111,597 CI or 1,826.7 liters per cylinder
  5. Engine rpm range: 15-102[3]
  6. At full load, the mean effective pressure is 1.96 MPa, while at 85% load, it is 1.37 MPa.
  7. 8 meters per second is the average piston speed.
  8. 171 g/(kW/h) for brake specific fuel consumption
  9. Power Up to 34,320-80,080 kW (46,020-107,390 horsepower), or 5,720 kW per cylinder. overall Torque7,603,850 Nm (5,608,310 lbf-ft) at 102 rpm maximum
  10. Power density for the 14-cylinder variant is 2.300 tonnes at 29.6-34.8 kW (39.7-46.7 bhp) per tonne.
  11. At full load, each cylinder receives about 160 g (5.6 oz) of gasoline every cycle.
  12. Up to 250 tons of gasoline are used by the entire engine each day.
  13. Piston weight 5.5 t (12,000 lb)
  14. Piston height 6 m (20 ft)

The Wärtsilä-Sulzer RTA96-C diesel engine, a collaborative creation of the Sulzer and Wärtsilä businesses, is the most potent engine in the world, with 109,000 horsepower.

The RTA96-C engine is not only the most powerful engine in the world, but it also has the greatest volume. The RTA96-C has a height of 13.5 meters and a length of 27.5 meters, and it generates precisely 109,000 horsepower and 7,603,850 Nm of torque. The only way to get the 14-cylinder machine with such a massive data to the port is with a special 34-wheel tractor, and the only way to get it to the cargo ship it will be utilized on is with a special skid system.

The 2300-ton engine's 300-ton crankshaft and all 100 of its 100-ton pistons are made using a rail system. Even with a team of 25 experts, installing the engine's cylinders takes about three months. With a top speed of 46 km/h, cargo ships using the RTA-96C can travel the distance between America and China in 4 days less time than regular ships. Let's also mention that this incredibly sophisticated engine costs a staggering $25 million and is only found on 25 ships worldwide.

100,000 horsepower and over 5,000,000 lbs.ft of torque ought to catch your attention. Check out how Wartsila built the biggest diesel engines ever. The biggest of the big container ships are propelled by these creatures.

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