A First For The 175D Engine

MAN Diesel & Turbo has first contract for the engine

The 12-cylinder version of the MAN 175D engine is globally certified for marine propulsion in diesel-mechanic and diesel-electric modes, and auxiliary operation for a power output of up to 2 220 kW.

MAN Diesel & Turbo said it has won its first contract for the new 175D engine.

The company said it will supply four 12V175D gen-sets, each delivering 1640 kW, for an Italian navy offshore patrol vessel program. The company has an option to supply six more for the program, known as Pattugliatore Polivalente d’ Altura (PPA).

“We already have several 175D test installations in operation but this is really the breakthrough for the engine,” said Lex Nijsen, head of Four-Stroke Marine, MAN Diesel & Turbo. “ Its excellent performance data and fuel consumption figures have created huge interest in the market and we are looking forward to following its development.”

MAN Diesel & Turbo said that the new gen-sets were chosen for their reliable and fuel-efficient design that meets the multiple scenarios and demands that such patrol vessels encounter.

Diesel & Turbo said it developed the 12-cylinder model to supplement and complete its product portfolio in the maritime sector. The new engine is available with an output spectrum from 1500 to 2200 Kw and is designed for propelling ferries, offshore supply vessels, tug boats and working vessels. Other applications, such as the markets for super-yachts, are served by additional, specialist model versions.

“The MAN 175D is compact, reliable and efficient—properties that are of essential importance for use on working vessels to allow safe maneuverability in the most challenging and roughest weather conditions,” said Dr. Matthias Schlipf , the project lead responsible for the MAN 175D. “The business case behind it also has to be right for the customer. And this is where the engine sets standards in more than just fuel consumption. Our aspiration is to make the MAN 175D the overall most efficient engine throughout its lifetime.”

The MAN 175D’s exhaust gas after-treatment system uses the selective catalytic reduction (SCR) method and is based on the MAN Ad Blue technology that has undergone many thousands of hours of testing. The engine meets IMO Tier III requirmeents.

Fincantieri will build the ships in Italy. Delivery of the first vessel is scheduled for 2021, with subsequent deliveries through 2026. The PPAs are designed to serve multiple roles, ranging from patrolling with sea-rescue capabilities, to civil protection and – in its most highly equipped version – as front-line fighting vessels. Each PPA is 133 m long between perpendiculars, has a top speed of over 32 knots, and can host a crew up to 180.

The MAN 175D gen-sets will, on account of the demanding operating conditions, feature double-elastic mounting and, in the aft machinery room only, sound enclosures.

The company said it had also won an order to supply main and auxiliary engines for a logistics support ship (LSS) and landing helicopter dock (LHD).

MAN Diesel & Turbo’s scope of supply for the LSS covers two 20V32/44CR main engines delivering 12 000 kW each for diesel-mechanical propulsion  and four 6L27/38 GenSets delivering 2084 kW each.

The scope of supply for the LHD includes two 20V32/44CR main engines delivering 12 000 kW each and four 9L32/44CR GenSets delivering 5400 kW each.

MAN Diesel & Turbo will also supply its in-house-designed SCR system for auxiliary engines.

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