Tognum has announced an upgrade to its MTU Series 4000 Ironmen workboat engines for compliance with US EPA Tier 3 emissions regulations. As with the current generation, these new Series 4000 engines will be available with 8, 12, or 16 cylinders for use in diesel-mechanical and diesel-electric propulsion systems or for powering on-board gensets. Installed in diesel-mechanical systems, the Ironmen engines will be able to cover power requirements from 750 to 2,680 bhp (560 to 2,000 kW), while diesel-electric drives and marine gensets will deliver 650 to 2,000 kW power output. No exhaust gas aftertreatment will be needed and the first engines will be available in mid-2013. The engines will be displayed for the first time at the International Workboat Show, booth No. 2601, in New Orleans, Dec. 5-7, 2012.
This latest version of the Ironmen engines is based on today’s proven MTU Series 4000 M63 long-stroke engine, which meets EPA Tier 2, IMO Tier 2 and ZKR II emissions regulations. The new generation Series 4000 M64 engine will be EPA Tier 3-compliant using only in-engine technology, and features optimization of MTU’s renowned common rail fuel injection system, turbocharging and combustion processes. Despite their very low emissions levels, the engines will boast high fuel efficiency and maintenance intervals as long as 30,000 operating hours, making them very economical to run.
Already equipped with all of the components needed for operation, such as pumps, coolers and filters, the Ironmen engines are convenient to install. In addition, on-engine resilient mounts reduce noise and vibration, thereby enhancing the comfort of the crew. Typical workboat applications are tugs, offshore supply vessels, towboats, inland waterway vessels and displacement yachts.