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Product bulletin D2-75

Product bulletin D2-75
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VOLVO PENTA INBOARD DIESEL D2-75 55 kW (75 hp) crankshaft power acc. to ISO 8665 7749292 - Downloaded from www.volvopenta.com 10/07/2012 17:16:27 New generation D2 for enhanced yacht comfort The new generation Volvo Penta D2 series is designed to meet the most stringent environmental legislation – US EPA Tier 3. Further reduced sound level and low cruising rpm gives quiet running and low vibrations. The 115A alternator with a built-in charging sensor provides rapid charging for onboard electrical needs. D2-75 with S-drive 150S d2_75.pzm:ftp-bulletin - Thu Jul 03 09:49:44 2003 The base engine is developed for industrial applications and marinized for the highest marine demands. This guarantees a reliable engine with a long service life. Comfort Smooth running with very low vibration levels is achieved through a dynamically balanced design incorporating a flywheel of high rotating mass and high efficiency rubber isolation. The new engine with re-designed combustion chambers and lower engine speed – 2700–3000 rpm – together with the new inlet air silencer gives the highest comfort on board. The noise is further reduced by up to 3 dBA from an already low level. The engine’s high torque provides excellent operating characteristics to aid maneuvering, particularly in confined spaces. The engine has EVC instrumentation and NMEA interface for presenting engine data on chart plotters. Environment The new generation D2 meets the world’s most stringent emission legislation – US EPA Tier 3. The particulate emissions are now reduced by 25%. The D2-75 is certified according to BSO, EU RCD and US EPA Tier 3. Turbocharging Turbocharged with an exhaust-driven turbocompressor. The turbo is controlled by a wastegate valve and gives a considerably higher torque at low engine speed. The turbo also acts as an additional silencer both on the induction side and on the exhaust side. Aftercooler The aftercooler cools the compressed and heated air and raises its oxygen content so that the engine can use the fuel more efficiently. Service Life The D2-75 is fitted with freshwater cooling as standard. This reduces internal corrosion and enables the engine to maintain a consistent and optimal working temperature under all conditions. To avoid galvanic corrosion the engine is equipped with a unique electrical isolation between engine and S-drive. Charging capacity The 115A alternator with an electronic sensor makes it possible to use a higher battery capacity and have fully charged batteries on board. Even at idle speed, the alternator gives more than 35A, and at cruising speed it delivers approx. 100A. Transmissions Eight matched transmission options are available, each built for durability and smooth running. Power Crankshaft power Calculated propeller load exp. 3.0 kW hp, metric 100 70 90 60 80 70 50 60 40 50 30 40 30 20 20 10 0 1200 10 1400 1600 1800 2000 2200 2400 2600 2800 0 3000 Rpm Torque T orque measured at crankshaft Nm kpm 210 21 200 20 190 19 180 18 170 1200 17 1400 1600 1800 2000 2200 2400 2600 2800 3000 Rpm Fuel consumption At calculated propeller load exp. 3.0 Liters/h 20.0 US gal/h 5 17.5 4 15.0 12.5 3 10.0 2 7.5 5.0 1 2.5 0.0 1200 0 1400 1600 1800 2000 2200 Rpm 2400 2600 2800 3000

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Technical description: Engine block and head - Cylinder block and cylinder head manu- factured from high grade cast iron. Crank- case features a rigid tunnel block design. - Chrome molybdenum forged crankshaft, statically and dynamically balanced with integral counterweights. Pistons are cast from high silicon aluminum, are heat treat- ed and fitted with two cast iron, chromium faced compression rings and a single oil - Replaceable, hardened valve seats - Elastic coupling on flywheel Engine mounting - Tuned front and rear cushion-type rubber mounts. Adjustable. Lubrication system - Spin-on...

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