Wärtsilä X62 engine

Wärtsilä has launched its new X62 two-stroke engine following successful completion of design validation and type approval tests, along with necessary sea trials.

Introduced in 2012, the new Wärtsilä X-Generation engine features a high stroke-to-bore ratio in order to achieve a lower engine speed and less brake specific fuel consumption (BSFC).

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It also offers the Wärtsilä UNIC; a single electronic control system that controls the fuel injection, the exhaust valve operation and the cylinder lubrication.

The company said this will provide better flexibility in the optimised operation of the engine.

In addition, the new X62 engine offers Wärtsilä’s second-generation electronically controlled common-rail fuel injection system that provides high levels of combustion efficiency to deliver less fuel consumption.

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Wärtsilä Ship Power vice-president (two-stroke) Martin Wernli said: "The X62 is an important addition to Wärtsilä’s engine portfolio and a valuable answer to the marine sector’s need to increase fuel efficiency and minimise emissions.

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"We have already orders for 16 Wärtsilä X62 engines, which is a clear indication of the demand for fuel efficient and highly reliable machinery."

"Although the tests and sea trials have only recently been accomplished, we have already orders for 16 Wärtsilä X62 engines, which is a clear indication of the demand for fuel efficient and highly reliable machinery."

The first X62 engines will be equipped on the four 115,000dwt LR2 product tankers being built at the Gunsan shipyard of Hyundai Heavy Industries for the Greek ship owner Kyklades Maritime.

The six-cylinder version of the engine with a 12,360kW nominal maximum continuous rating will be installed on those vessels, Wärtsilä said.

In June 2014, Wärtsilä’s X62 engine was put through a factory acceptance test (FAT) by Hyundai Heavy Industries Engine and Machinery Division (HHI – EMD).

Image: The six-cylinder Wärtsilä X62 two-stroke engine. Photo: courtesy of Wärtsilä.