16 July 2008

• Available in 12, 16 or 20 cylinders with power range extended to 4300 kW
• The latest NATO standards for acoustical, shock and electromagnetic compatibility are fulfilled
• Reduced NOx-values for the new Series 4000 engines meet US EPA Tier 2 emission regulations using purely internal technology
 
MTU Detroit Diesel Australia will be presenting the new generation of its highly successful Series 4000 marine diesel engines from 22nd – 25th of May at this year’s Sanctuary Cove International Boat Show. 
 
The new Series 4000 engines are cleaner and more powerful than their predecessors and are based on 10 years of experience with the prior generation, which have clocked up several million operating hours at sea.  They also comply with the stricter US emission limits of EPA Tier 2, which above all prescribe significant reductions in nitrogen-oxide levels.  The MTU marine units undercut the new EPA Tier 2 limits by employing purely internal engine technology without any exhaust after-treatment. The new combustion balance on the Series 4000 also achieves a significant decrease in particulate emissions.
 
12, 16 & 20-cylinder Series 4000 marine engines even more powerful than their predecessors
 
The lower pollutant emissions from MTU’s Series 4000 units are not achieved at the expense of reduced power – quite the opposite.  Per cylinder performance has risen by more than 26 percent, from 170 kW to 215 kW, at a rated speed of 2,170 rpm. The total power of the 12-cylinder engine has thus increased from 2,040 kW to 2,580 kW, whilst the 16-cylinder unit has risen from 2,720 to 3,440 kW.

New in MTU’s marine applications range is a 20-cylinder version of the Series 4000.  This engine generates up to 4,300 kW, and despite the reduction in emissions, fuel consumption has also been reduced.
 
As replacements for the older and larger MTU 595 Series, the new Series 4000 engines represent a significant fuel reduction as well as a reduction in both size and weight.
 
The latest NATO standards for acoustic, shock and electromagnetic compatibility are fulfilled
 
The new 4000 Series was specifically developed to fulfil military ship propulsion requirements. Various component calculations have shown that the Series 4000 complies with the latest NATO standards in terms of shock, electromagnetic compatibility (EMC) and low acoustical signatures.

The modular design of the new Series 4000 allows flexible engine configuration depending on customer requirements. The range of application for the new Series 4000 engines therefore spreads from simple patrol boats to sophisticated corvettes.
 
MTU Executive Vice President, Engineering & Operations, Dr Gerd-Michael Wolters: “We have consistently extended our technological supremacy”
 
These outstanding performance figures have been made possible by the consistent, ongoing in-house development of the key technologies: injection, turbocharging and electronics; which are always part of MTU’s approach.
 
“MTU Friedrichshafen was the first manufacturer of large diesel engines to use Common Rail injection technology,” explained Dr Gerd-Michael Wolters, MTU Executive Vice President of Engineering & Operations, who introduced the high-performance injection system on MTU’s Series 4000 engines 10 years ago.
 
“We are not resting on the laurels we have earned from our ten years of experience with Common Rail technology. Instead we have used our technological lead for consistent further development of the injection system,” said Dr Wolters.

“The result is a Common Rail system of the next generation which utilizes a high-pressure in-line pump and LEAD injectors with individual fuel accumulators to achieve a virtually constant pressure of 1,800 bar across the entire engine operating range and sets new technological standards.”
 
MTU has also achieved technological progress on the turbocharging front – the new Series 4000 marine engines are fitted with two (12 and 16-cylinder versions) or four (20-cylinder version) of the turbochargers developed and manufactured by MTU in-house. The turbochargers can be switched in line with engine speed and the single-stage sequential charging system ensures optimum performance across the whole engine performance map.
 
The latest generation of MTU’s own electronic management system, ADEC (Advanced Diesel Engine Control) represents a further significant advance incorporated in the new marine engines. Among other features, the ADEC unit has triple injection electronics (pilot, main and after-injection), which provide optimum control of the fuel injection process to ensure low-pollution, high-efficiency combustion.
 
The new MTU Series 4000 marine diesel engines are exclusively distributed nationally through MTU Detroit Diesel Australia.

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