New MAN Four-stroke Diesel Premières at SMM 2012

Press Release
Tuesday, September 04, 2012

Dual-fuel marine diesel engine newcomer L35/44DF offers full flexibiltiy.

MAN Diesel & Turbo introduce its L35/44DF engine, the latest addition to its four-stroke portfolio. Spurred on by developments in environmental legislation and the strict  emission limits resulting from that, the new engine offers dual diesel fuel-gas running and can also be introduced as a retrofit to engines already in service.

The first prototype entered its test phase at the beginning of 2012’s second quarter at MAN Diesel & Turbo’s Augsburg facility. A V-type engine version is being developed simultaneously that will enlarge the power-output range of the company’s dual-fuel engine portfolio as part of MAN Diesel & Turbo’s market strategy.



The company is introducing the L35/44DF engine at a time where separate emissions legislation for harbours is set to come into play, in addition to the upcoming IMO Tier III emission regulations for marine applications. Accordingly, MAN Diesel & Turbo views the introduction of another engine that offers the option of operation on gaseous fuels as timely, also in the context of ship owners’ increasing environmental awareness. With the L35/44DF engine, MAN Diesel & Turbo is continuing the expansion of its product program with a dual-fuel engine based on common rail technology.


MAN Diesel & Turbo’s development objective with the new engine was to produce a high efficiency/ high specific power output unit that complied with IMO Tier II emission limits in diesel mode and IMO Tier III limits in gas operation. A high degree of fuel flexibility (HFO, MDO, MGO and natural gas) was another primary objective. With an output of 530kW/cylinder, the inline 35/44DF is available in 6 – 10 cylinder configurations, equivalent to total power outputs from 3.2 MW to 5.3 MW. This represents the highest power output available in the segment and complements that offered by the larger L51/60DF type.



The L35/44 engine has also been specifically developed for the retrofit of 32/44CR-T2 engines where it can avail of a high level of component synergies and the same crankcase, which can be re-machined on board. Subsequent engine operation is mainly intended for gas mode with a separate pilot ignition system – based on proven technology widely employed by the truck industry – that is independent of the primary, common rail injection system. However, the common rail system is retained and fully functional as a back-up system in the event of any problem while operating in gas mode.


Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter April 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Massive Layoff Ahead for Hyundai Heavy

Another massive reduction in the Korean shipbuilding workforce may come as most shipyards are still struggling with falling orders and mounting losses, reports Yonhap quoting industry sources.

USCG Foundation Run to Remember Events Announced

The Coast Guard Foundation, a non-profit organization committed to the education and welfare of Coast Guard members and their families, announced this year’s Run

Port of Vancouver CEO Coleman to Step Down

Todd Coleman, CEO of Port of Vancouver USA, step down from his position May 19, after 15 years with the port.   Coleman, a Professional Engineer, began his career with the port in 2001,

Marine Power

Alfa Laval HCO Filter Approved for Validation Testing

A manufacturer of two-stroke engines has agreed to validation tests of an Alfa Laval hydraulic control oil (HCO) filter . The approval to test the final HCO filter

Jensen Debuts New Tractor Tug Design

Crowley Maritime Corp.’s Seattle-based naval architecture and engineering firm, Jensen Maritime, reports it has designed a new tractor tug for Vessel Chartering

GE Equips New Multipurpose Supply Vessels

After equipping more than 20 purpose supply vessels (PSV)/multipurpose supply vessels (MPSV) for Eastern Shipbuilding, GE has once again been chosen by the builder

 
 
Maritime Security Maritime Standards Navigation Offshore Oil Pod Propulsion Port Authority Salvage Ship Electronics Ship Simulators Winch
rss | archive | history | articles | privacy | 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: 0.0911 sec (11 req/sec)