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Marine Engine Manufacturers




MTU  Yacht Engines – Power. Passion. Partnership.

MTU Marine EngineMTU is one of the world’s leading manufacturers of large diesel engines. And complete propulsion systems. The robust and durable engines reliably propel large ships. And heavy agricultural and rail vehicles, and industrial applications.



MTU is part of the Rolls-Royce Group. As a leading provider of diesel engines. And complete drive systems. MTU offers one of the most comprehensive and most modern product program for yachts.  



In 2016 MTU presented its mobile MTU gas engines for marine propulsion applications. The first pre-production units of the mobile MTU gas engine successfully completed their performance tests.




MTU series 4000 Engines

The 4000 series was launched in 1996. It is considered to be the first large diesel engine. The 4000 was designed enable increases in power by increasing displacement. It is common used in vessels, fast ferries and industrial machines.



More here

https://www.mtu-online.com/benelux/applications/yacht/mega-yachts/





Caterpillar Marine Engines

Caterpillar is leading producer of marine power systems. CAT offers an outstanding marine diesel power range. And a complete continuously evolving product line of propulsion engines.



Caterpillar EngineCat Marine Diesel Engines set the standard for quality, performance and reliability. An extensive power range and decades of experience result in a single source.



For total power solutions on board. Providing electronic marine engines, generator sets, motors and vessel controls.



Throughout the power range, Cat engines have the power not just to accelerate, but to exhilarate. Continual advancements in electronic engine technology mean Cat marine engines satisfy worldwide emissions regulations. And still deliver a surge of adrenaline whenever and wherever required.



Cat also produces auxiliary engines. Caterpillar marine generator sets provide the efficient power, with reduced operating costs and maximize productivity and up-time.



More here

https://www.cat.com/en_US/by-industry/marine/pleasure-craft.html




MAN Yacht Engines

MAN Marine Diesel EngineHigh power alone is not enough for pure exhilarating performance. Fascinating horsepower paired with the best of comfort is a central demand of engines for yachts and pleasure craft.



Innovative MAN diesel engines power luxury boats into the planing phase quickly. Where they run with distinct smoothness - for a relaxed, comfortable but nevertheless thrilling excursion afloat.



For yachts and pleasure craft, MAN Engines offers powerful and compact high-speed diesel drives. From 537 kW to 1,471 kW (730 HP to 2,000 HP). All MAN engines excel through their high power development. Even in the low speed range.



With an extremely low fuel consumption. The advantages of V-engines in the power range from 735 kW to 1,471 kW (1,000 HP to 2,000 HP) lie primarily in their outstanding power efficiency and compactness.



The engines are delivered ready for installation. And are designed for optimum performance. In the various conditions of deployment and operation.



After installation MAN Engines offers to examine and pass off the engine. And to carry out extensive commissioning. The boat owner receives an additional guarantee.



With the Gold Standard Certificate on acceptance of the engine. All engines comply with the internationally applicable exhaust-gas regulations.



More here:

https://www.engines.man.eu/global/en/marine/yacht-engines





Rolls Royce Marine

Rolls Royce Bergen Marine EngineRolls-Royce is committed to the marine market. And is maintaining its world leading position in the design, development, supply and support of products and systems. For commercial and naval customers worldwide.



Rolls Royce medium-speed Bergen diesel engine portfolio comprises established and newly developed models. In the 1,800 to 8,000 KW power range.



Rolls-Royce pioneers cutting-edge technologies that deliver the cleanest, safest and most competitive solutions. To meet our planet’s vital power needs.



More Here:

https://www.rolls-royce.com/products-and-services/marine













YanMar

Yanmar is a Japanese diesel engine manufacturer. The company produces small to medium sized marine diesel engines It builds  reliable and durable diesel engines.  It also produces diesel generators. Yanmar was founded in 1912 and has 20,000 employees.



More here:

https://www.yanmar.com

Marine Engine Specifications

Marine Engines - Yacht Propulsion Systems - Auxiliary Power

Most modern yachts utilize a reciprocating diesel engine as their prime power source. Due to their operating simplicity, robustness and fuel economy. Compared to most other prime mover mechanisms.



The rotating crankshaft can be directly coupled to the propeller with slow speed engines. Or via a reduction gearbox for medium and high speed engines. Or via an alternator and electric motor in diesel-electric vessels.



A diesel–electric transmission system includes a diesel engine connected to an electrical generator. Creating electricity that powers an electric traction motor.



There are several propulsion systems available. With different specifications:



Propeller systems

A fan that transmits power by converting rotational motion into thrust.



Pod propulsion

Aa pitch propeller mounted on a steerable pod attached to the hull. Linked to the engines through either a direct mechanical link or diesel-electric link.



Waterjet Propulsion

A ducted propellor or pump which creates a jet of water. By forcing water through a nozzle.

Marine Engine Manufacturers



The are several Marine Engine Manufacturers.

The most common are MTU, Caterpillar, MAN, Yanmar and Rolls Royce Marine.



We created this comparison of yacht / marine diesel engine specifications.
















Marine Diesel Engines Specifications Table | SuperYachtFan
















Brand


Type


Vol.


KW


Bhp


Rpm


Emisions


Fuel Consumption
















MTU


2000


22-36 l.


400-1,939


536-2,600


1,800-2,450


IMO II / EPA III


400-500 l/h

MTU


4000


51-69 l.


746-4,300


1,000-5,765


1,500-2,100


IMO II / EPA II


800-1,000 l/h

MTU


1163


232 l.


3,600-7,400


4,825-9,925


1,200-1,250


IMO I / IMO II


1,496 l/h

MTU


8000


347 l.


7,200-10,000


9,655-13,410


1,15


IMO II / EPA II


1,600 - 2,100 l/h
















CAT


C12


12 l.


492-526


660-

705


2,300


IMO II


160 l/h (est.)

CAT


C18


18 l.


350-747


469-1,001


1800-2300


IMO II


260 l/h (est.)

CAT


C32


18


1193-1417


1,600-1,900


2,300


IMO II / EPA III


300 l/h (est.)

CAT


3512C


58


1000-1765


1,640-2,366


1600-1800


IMO II / EPA III


800l/h (est.)

CAT


VM32C


37


6000-8000


8,000-11,000


750


IMO II


1200 l/h (est.)
















MAN


i6-800


12 l


588


800


2,300


EPA III


158 l/h

MAN


V8-1200


16 l.


882


1,2


1,200-2,100


EPA III


240 l/h

MAN


V12-1550


24 l.


1,14


1,55


1,200-2,100


EPA III


299 l/h

MAN


v12-1900


24 l.


1,397


1,9


1,200-2,100


EPA III


373 l/h
















Rolls Royce


C25:33L6P




2


2,72


1,000


IMO II


182 l/h

Rolls Royce


B32:40V12P




6


8,16


750


IMO II


184 l/h

Rolls Royce


B33:45V12




7,2


9,8


750


IMO II


176 l/h

















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Emission Standards

Emission standards are the legal requirements governing air pollutants released into the atmosphere. Emission standards set quantitative limits on the permissible amount of specific air pollutants that may be released from certain engines.




In the yacht / marine industry there are two common set of emission standards: the IMO and the EPA.



IMO Marine Engine Regulations

The International Maritime Organization (IMO) is an agency of the United Nations which has been formed to promote maritime safety.



IMO ship pollution rules are contained in the “International Convention on the Prevention of Pollution from Ships”, known as MARPOL



The NOx emission limits of Regulation 13 of MARPOL Annex VI apply to each marine diesel engine. With a power output of more than 130 kW installed on a vessel.



NOX Limits

Tier         Date       KW< 130    KW <2,000               KW >2,000

IMO I      2000       17.0             45*(n-0.2)                9.8

IMO II     2011       14.4             44*(n-2.23)              7.7

IMO III    2016        3.4              9*(n-.02)                 1.96




EPA Marine Engine Regulations

The United States Environmental Protection Agency (EPA) has set EPA standards for exhaust and evaporative emission. To reduce the environmental impact from marine spark-ignition engines and vessels.



The emission standards require manufacturers to control exhaust emissions from the engines. And evaporative emissions from fuel tanks and fuel lines.



NOX Limits

Tier         Date       KW< 130    KW <2,000               KW >2,000

EPA I      2004       17.0             45*(n-0.2)                9.8

EPA II     2011       75% of I      75% of I                    75% of I

IPA III     2016       20% of I      20% of I                    20% of I






Sources

https://en.wikipedia.org/wiki/Marine_propulsion

https://en.wikipedia.org/wiki/Category:Marineengine_manufacturers

http://www.imo.org/

https://www.epa.gov/regulations-emissions-vehicles-and-engines/regulations-emissions-marine-spark-ignition-engines

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