Page 97: of Maritime Reporter Magazine (August 2016)

as well as signi? cantly improved turbo- ing engine series: The 18V48/60TS 175D is designed to ? t in precisely with Nijsen. “Its compact dimensions and low charging ef? ciencies.” which is already in operation since 2012, the needs of commercial shipping mar- weight make the MAN 175D an ef? cient

According to MAN D&T the bene? ts followed by the newly 12/20V32/44CR ket, optimized for propelling ferries, power house.” for the customers are tremendous: TS with an power increase of approx. 11 offshore supply vessels, tug boats and In the ? rst instance it has been an-

The new MAN ECOCHARGE Two- percent, the 12/20V35/44G TS with an working vessels. Other applications, nounced by the company that they come

Stage Turbocharging System offers power increase of about 20 per-cent, as such for super yachts, are served by ad- with a 12-cylinder only. But meanwhile major bene? ts for engine builders. The well as the 18V51/60G TS with cylinder ditional specialist model versions. MAN D&T has extended the number of increase in turbocharging ef? ciencies, in outputs of 1050/1150 kW/cyl. “The MAN 175D is compact, reliable cylinders.

comparison to single-stage turbocharg- Retro? t & Modernization and ef? cient – properties that are of es- The 175D, a conventional diesel en- ers, is mainly related to the intercooler for Turbocharger sential importance for use on working gine, is available as 12, 16 and 20 cylin- – positioned between the low-pressure- Retro? tting, particularly for the new vessels to allow safe maneuverability der in V-con? guration with a V-angle of stage and high-pressure-stage turbo- ECOCHARGE Two-Staged Turbo- in the most challenging and roughest 60 degrees for all cylinder variants. The chargers – that signi? cantly reduces the charged System, is a key element of weather conditions,” said Nijsen. “The new engine series features, according to energy required to compress the intake MAN D&T. “Whether replacing an ex- business case behind it also has to be the company, a modular engine design air to high pressure. The resulting higher isting turbocharger or introducing the right for the customer. And this is where for a high number of identical compo- ef? ciencies have an instantaneous im- latest (ECOCHARGE) technology for the engine sets standards in more than nents – even the crankcase will be the pact on the engine by advantageously in- four- and / or two-stroke engines, the just fuel consumption. Our aspiration is same for all numbers of cylinder. This is creasing the air pressure over the cylinder company provides end-to-end-support,” to make the MAN 175D the overall most done by integral balancing gears on the during the scavenging process. Addi- said Albrecht. The ? rst retro? t of the ef? cient engine throughout its lifetime.” 16- and 20 cylinder units.

tionally, greater turbocharging ef? ciency new ECOCHARGE has been done on The MAN 175D also scores highly in With a bore and stroke of 175 mm x fosters the reduction of NOx emissions Holland America Line’s MV Wester- terms of its eco-friendliness. Its compact 215 mm (displacement of 5.2 l per cyl- through the Miller engine cycle while dam, and two more HAL cruise ships and modular exhaust gas after-treatment inder), the 175D will be set to deliver the improved scavenging ef? ciencies will follow shortly. system uses the selective catalytic re- 135 - 185 kW/cylinder at 1,200 – 1,900 provided by the ECOCHARGE system duction (SCR) method and is based on rpm (1,620 to 3,700 kW) with a bmep of make the engine more fuel ef? cient, as A New Player: MAN 175D the MAN Ad Blue technology that has 25.96 / 22.46 bar; the max piston speed is

Albrecht underlines: “Fuel saving of up “With the MAN 175D, we are supple- undergone many thousands of hours of of 14.3 m/s, ensuring that the traditional to around 8% are possible”. Additionally menting and completing MAN Diesel & testing. The engine will therefore sat- reliability and robustness of MAN D&T he reports that the ECOCHARGE sys- Turbo’s and MAN Truck & Bus’s prod- isfy the strict environmental standards of Marine engines is maintained. The 175D tem has been developed for both gas- as uct portfolio in the maritime sector,” the IMO Tier III from the moment it hits is a turbocharged, charge air cooled, well as HFO-burning engines. said Lex Nijsen, Vice President, Head the market. non-reversible four-stroke diesel engine.

MAN D&T recently introduced its en- of Four-Stroke Marine. The new engine The compact and robust engine is The engines feature MAN D&T SaCoS gine portfolio with the ECOCHARGE range will be offered with an output designed for user-friendliness and ef? - (Safety and Control System on engine),

Two-Staged Turbocharged System which spectrum from 1,200 to 3,700 kW. ciency: “Simple commissioning, simple TCR12 Turbocharger, Common Rail in- includes, for the time being, the follow- The 12-cylinder version of the MAN operation, simple maintenance,” said jection system and SCR after-treatment.

MAN D&T’s newly developed 175D which supplies power from 135 – 185 kW/cyl at 1,200 – 1,900 rpm.

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