HYBRID PROPULSION
EPM NEXT GENERATION The German IMES GmbH, specialist in field of cylinder pressure sensors and engine monitoring systems, will present the new generation of its successful electronic handheld devices type EPM on its booth A2 235 at SMM in Hamburg Since 2008 the electronic indicator EPM-XP is in series production and up to now IMES offers four different EPM types: EPM-Peak, EPM-XP, EPM-XPplus and EPM-XPplus-vibro. All EPM devices are battery powered, compact and lightweight handheld devices for 2- and 4-stroke diesel engines. They convince with their ease of use, robustness, and high accuracy. There is no need of factory calibration, neither after several years of operation. More than 5,000 units have been sold up to now. The measurements the user can perform are depending on the EPM type he is using. The digital peak pressure indicator EPM-Peak is designed to measure the maximum value of cylinder pressure while the engine analyser EPMXPplus-vibro enables advanced combustion pressure measurements including vibro-acoustic diagnostic on 2- and 4-stroke diesel engines. The further development EPM Next Generation offers one common hardware for all EMP types, this enables a simple upgrade from peak pressure indicator EPM-Peak up to engine analyser EPM-XPplus-vibro. The user can download a higher version from the Internet and it is not necessary to send the device back to IMES. The collected data of all EPM types can be displayed and evaluated from the EPM visualization software. Via USB port the device will be connected to a PC and the visualization software identifies the EPM type and activates the corresponding software functions. Depending on the instrument peak pressure, pressure- and combustion behavior, performance data as well as valve timing will be evaluated and analyzed. If the PC is connected to the internet it will be automatically checked if there are any hardware or visualization software updates. The user can install the updates and they are free of charge.
Furthermore, the optimized handheld devices of the EPM Next Generation offer 2 additional function keys for an easier handling and a larger and more comprehensive display. All devices of EPM family are equipped with the very robust cylinder pressure sensor HTT-06 that offers a very good thermodynamic performance and they all have a battery capacity of more than 20 working hours.
8 IMES will present the next generation of its EPM electronic handheld device at its booth at SMM in Hamburg in September
Compact contender in high-speed stakes French high-speed engine maker Moteurs Baudouin has unveiled an especially compact new model targeted at small vessel and workboat propulsion applications, writes David Tinsley The new engines was introduced at the Euromaritime Exhibition in Marseilles in June. Yhe 6F21 diesel covers a power band up to 735kW at 2,300rpm crankshaft speed and is characterised by a claimed ‘best in class’ power density. As the latest outcome of the steady investment in Baudouin since its acquisition by the Weichai Group of China 13 years ago, the 127mm-bore addition to the portfolio incorporates a two-stage turbocharger system, two intercoolers and high-pressure common-rail fuel injection, operating at 2,200bar.
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The engine structure is strengthened to withstand high torque and a cylinder pressure in excess of 200bar, although this has been achieved through the use of light materials, so as to keep overall weight down. Cast iron and steel have been employed only where stress and temperature criteria so demand. The flywheel housing, oil sump, covers, brackets, supports, and heat exchanger bodies have all been constructed from light alloys. Conceived for the broad market spread encompassed by high-speed diesel power, the 6F21 is offered at three duty ratings, common to which is the 2,300rpm maximum rotational speed. Thus, the P3 intermittent duty model for pilot boats, small passenger vessels and workcraft, delivers 599kW, and the P4 light duty engine for military and fast rescue vessels, survey ships and other
vessels turns out 662kW, while the P5 high-performance version, for the leisure market, yields 735kW. With main dimensions of 1,470 x 1,100 x 1,075mm main dimensions, making for what Baudouin describes as “the most compact marine engine in our history”, the six-cylinder in-line 6F21 is suited to the smallest of machinery rooms. Ease of maintenance has been an important tenet of the design project, as expressed in the adoption of individual cylinder heads, ease of access to key components without necessitating engine dismantling, and front mounting of fuel filters. Weichai has ploughed more than EUR100m(US$105m) into Baudouin since taking over the 1918-founded company in 2009.
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