HMM Orders Wartsila Engines

Thursday, March 10, 2005
Four 8600 TEU container ships contracted by Hyundai Merchant Marine Co Ltd (HMM) for building at Hyundai Heavy Industries Co Ltd (two ships) and Hyundai Samho Heavy Industries Co Ltd (two ships) in Korea are to be powered by 14-cylinder Sulzer RT-flex96C common-rail engines. Each engine will have a maximum continuous power of 80,080 kW (108,920 bhp). These Sulzer 14RT-flex96C engines will be built under license from Wärtsilä Corporation by Hyundai Heavy Industries Co Ltd. The ships are due for delivery in the first quarter of 2008 and are intended for operation on the East Asia - Europe trade. They will have a service speed of 27 knots. Mr J.S. Kwon, Senior Vice President of Hyundai Merchant Marine looked forward to the delivery of these ships, commenting, "The choice of 14-cylinder Sulzer engines with the latest common-rail technology provides us with a very economical propulsion plant for more than 100,000-horsepower." The Sulzer 14RT-flex96C is the most powerful marine engine on order today, and also the first low-speed marine engine to be built with more than 12-cylinders. Technical background The Sulzer RT-flex96C is becoming a popular engine for the propulsion of large, fast container ships with some 101 engines of this type, with seven to 14 cylinders, now on order or already in service. The first RT-flex96C engines, with eight and 12 cylinders, entered service in November and December 2004 respectively. The 14-cylinder RT-flex96C is an extended version of an already well-established 12-cylinder RT-flex96C design, which itself was developed from the Sulzer RTA96C engine type widely applied in container ships since 1998. Extensive consideration was, however, given to the practicality of the increased numbers of cylinders and to ensure that the engines match everyone's expectations in terms of safety, reliability and durability. For, example, although there are numerous possibilities of firing orders for 14-cylinder engines, a firing order could be found with good vibration characteristics. With regard to the engine structure itself, the opportunity had already been taken when adapting the structure to accommodate the RT-flex common-rail system, to introduce certain modifications in all cylinder numbers for better manufacture and which also resulted in greater stiffness and reduced stresses in the structure. The revision also took into account the 14-cylinder engines to ensure that they had adequate structural strength and rigidity without further modification. While the crankshaft of the RT-flex96C has sufficient torque capacity for 14 cylinders, the material has been upgraded to enable an increased shrink fit for a greater design margin. The thrust bearing structure in RT-flex96C engines with a mid gear drive has been revised to reduce deformations and stresses even with the increased thrust in the 14-cylinder engine.
Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Container Ships

Liebherr to Deliver RTGs to Mayotte and Manila

Liebherr confirms orders for variable speed RTGs and electric RTGs. DPWorld Asian Terminals Inc. has placed an order with Liebherr Container Cranes for a further 5 RTGs at its Manila facility.

UASC Targets Expansion to Beat Container Market Blues

UASC expects to reach volume of 2.35 mln TEU in 2014 Global carriers still struggling with weak conditions United Arab Shipping Company (UASC) is on a major expansion drive,

DP World Receives 1st Scheduled Vessel at New Terminal

DP World has yesterday welcomed the first scheduled vessel to call at its new Container Terminal 3 in Jebel Ali, Dubai, as it gears up to serve customers at the state-of-the-art facility.

 
 
Maritime Contracts Maritime Security Maritime Standards Naval Architecture Navigation Port Authority Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2419 sec (4 req/sec)