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Wärtsilä 31 Bags the Record for World’s Most Efficient Diesel Engine


Wartsila 31 (1)

Wärtsilä is a Finnish company that manufactures engines, and hold under its belt the feat of manufacturing the giant RTA96-C marine diesel engine (this engines is 9-foot high, 44-foot long and capable of 110,000 horsepower). Now, it has bagged the record for creating world’s most efficient 4-stroke diesel engine.

Wartsila 31 (3)

This marine engine, touted the Wärtsilä 31 engine, has been made for medium-sized ferries, cruise ships, medium sized tankers and container ships. It is capable of 13,142 horsepower and stands at 15.4 ft tall, 28.8 ft long. The stroke is 16.9 in and the cylinder bore stands at 12.2 inches.

Wartsila 31 (2)

The Wärtsilä 31 comes in three different versions: diesel, spark-ignited gas and dual fuel. The diesel engine takes the cake, giving a fuel efficiency of 0.271 pounds per horsepower hour and with it sets a world record. The system employs advanced fuel and air injection systems, and a variable valve timing to deliver this top notch fuel efficiency, which is 2.6% improvement on the previously record holding RTA96-C which used 0.278 pounds per horsepower hour.

Wartsila 31 (4)

This record engine isn’t easy on the pocket just for saving the amount of fuel it burns, it is for its maintenance routine as well. The engine can run 8,000 hours before its first service is a necessity. Pairing it up with Wärtsilä’s Nitrous Oxide reduction system fares no efficiency penalty, which is a strict requirement in a few area.

Source: Wärtsilä

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Wärtsilä 31 Bags the Record for World’s Most Efficient Diesel Engine

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