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D7A TA
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Catalog excerpts

D7A TA - 1

VOLVO PENTA MARINE GENSET Volvo Penta Genset System The Volvo Penta Genset systems are the complete solution for a ship’s onboard power requirements. From a company de icated to d the marine industry you not only get reliable marine diesels, well-matched generators and a monitoring system, but also a wide range of other products and services to optimize your investment. Each Volvo Penta Genset is factory built fully adapted to the customer’s requirements and comes complete with engine, generator and monitoring system, all tested and ready for installation onboard. A complete set of documentation will be delivered with the set according to Volvo’s high quality publication standard. The D7A TA is a highly reliable marine Genset. The engine and generators are type approved by all major classification societies and the complete Genset can be delivered with complete classification certificates directly from factory. Well-matched components combined with an injection system and a turbo optimized for Genset applications provides fast response to load variations. Easily accessible maintenance points and single side servicing contribute to the ease of servicing the engine. Liners of wet and replaceable type, inclined connecting rod caps and replaceable valve seats make even major maintenance possible to carry out on-board. A rigid in-line cylinder block with generously dimensioned crankshaft bearings, together with water-cooled exhaust manifold and turbo, are just some of the design features making this silent running and sturdy engine. The owner of a D7A TA not only benefits from many hours of trouble-free operation, but also Technical Data Engine enjoys improved onboard comfort. Economical and service friendly Price is not the only concern when investing in a new Genset. As confirmed by marine professionals, it is the operational costs, such as cost for fuel, spare parts, service and maintenance, that make the real difference in economy. The D7A TA is equipped with unit pumps that control the fuel distribution for each cylinder. Six-hole high-pressure injection nozzles optimize the fuel-air mixture. This improved combustion results in high thermal efficiency, low fuel consumption and reduced exhaust emissions. Safely supported Volvo Penta has a well-established, welltrained, network of authorized service dealers in more than 100 countries throughout the world. These service centers offer Genuine Volvo Penta Parts as well as skilled service personnel to help you protect your investment. Engine designation . . . . . . . . . . . . . . . . . . . . . . . . . D7A TA No. of cylinders and configuration. . . . . . . . . . . . . in-line 6 Method of operation . . . . . . . . . . . . . . . . . . . . . . . . 4-stroke, direct-injected, turbocharged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . diesel engine with aftercooler Bore, mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Stroke, mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Displacement, l . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.15 Compression ratio. . . . . . . . . . . . . . . . . . . . . . . . . . 17.5:1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1500 rpm 1800 rpm Crankshaft Power HE Cooling, kW . . . . . . . . . . . 139 148 Crankshaft Power KC Cooling, kW. . . . . . . . . . . . 139 148 Specific fuel consumption, g/kWh. . . . . . . . . . . . . 213 (50%) 220 (50%) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 (75%) 212 (75%) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 (100%) 213 (100%) Recommended fuel to conform to. . . . . . . . . . . . . MDO-DMX or MDO-DMA acc. to ISO 8217 Engine certified for. . . . . . . . . . . . . . . . . . . . . . . . . . EU IWW and IMO NOx 10% overload available acc. to class requirements. Fuel temperature 40°C (104°F). Technical data according to ISO 3046 Fuel Stop Power with a tolerance ±4%. Fuel with a lower calorific value of 42700 kJ/kg and density of 840 g/liter at 15°C (60°F). Merchant fuel may differ from this specification which will influence engine power output an

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D7A TA - 2

D7A TA Technical description Complete Genset – High system efficiency as a result of wellmatched components – Components of highest quality from well reputed suppliers – Mono-block engine/generator rigidly mounted on a common bed frame – Engine directly coupled to generator via a flexplate – Flexible mountings including welding plates mounted under the frame – Total torsion compatibility confirmed by advanced calculations – Full protection of rotating parts – Set painted in Volvo Penta green Keel cooled system (KC) – 2-circuit keel cooling system – Gear-driven pump (LT circuit) –...

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D7A TA - 3

Technical Data HE Genset Power output at 1500 rpm 50Hz/400V, kVA (kWe) D7A TA / UCM274G-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . D7A TA / UCM274H-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power output at 1800 rpm 60Hz/440V, kVA (kWe) D7A TA / UCM274F-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . D7A TA / UCM274H-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10% overload available according to class requirements. Fuel temperature 40°C (104°F). Technical data according to ISO 3046 Fuel Stop Power and ISO 8665. Fuel with a lower...

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D7A TA - 4

SE-405 08 Göteborg, Sweden www.volvopenta.com 7748596 English 06-2012. © 2012 AB Volvo Penta.

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