| 词条 | Mercedes-Benz M276 engine |
| 释义 |
|name=Mercedes-Benz M276 |image=Mercedes-Benz Motor 276 Typ S 400 Hybrid.JPG |manufacturer=Daimler AG |production=2010– |configuration=Naturally aspirated 60° V6 |valvetrain=DOHC with VVT |fueltype=Gasoline |fuelsystem=Direct injected |coolingsystem=Water cooled |oilsystem= Wet sump |predecessor=Mercedes-Benz M272 |block=Aluminum |head=Aluminum |displacement={{convert|3499|cc|L|1|abbr=on|order=flip}} |bore={{convert|92.9|mm|2|abbr=on}} |stroke={{convert|86|mm|2|abbr=on}} |power={{convert|248-302|hp|kW PS|0|abbr=on}} |torque={{convert|340-370|Nm|lbft|0|abbr=on}} }} The Mercedes-Benz M276[1] engine is a direct injected, gasoline automotive piston V6 engine. The M276 engine is related to the Chrysler Pentastar V6{{citation needed||date=February 2016}}, with which it shares its basic architecture{{citation needed||date=February 2016}}, as it was developed while Chrysler was still owned by Daimler AG. This can be seen in its 60 degree vee-angle, as opposed to the 90 degree angle of its M272 predecessor. The 60 degree vee-angle eliminates the need for a balance shaft, improving refinement while reducing mechanical complexity.[1][2] The M276 engine features an aluminum engine block and dual overhead camshafts with independent variable valve timing on intake and exhaust valves and a new timing chain arrangement. The M276 also includes direct injection with piezo-electrically controlled injectors for more precise fuel delivery, multi-spark ignition that allows for multiple ignition events during the combustion stroke, and modified accessories (such as the fuel pump, water pump, oil pump, and alternator) that reduce parasitic loads. These features are also shared with Mercedes' M278 V8 engine, announced at the same time.[1] Mercedes-Benz claims that the new engine, in conjunction with vehicle modifications such as a stop-start system, can produce up to a 24% improvement in fuel economy while increasing power and torque over the M272.[3] The M276 is unavailable in Australian market due to high sulphur content in the fuel. BMW made a similar decision with their N53 engine for the same reason. [4] SpecificationsOne variant of the M276 engine has been announced. The first engine with a displacement of {{convert|3499|cc|L|1|abbr=on|order=flip}}, specification of the bore and stroke of {{convert|92.9x86|mm|2|abbr=on}}. Output is {{convert|225|kW|PS hp|0|abbr=on}} at 6500 rpm with {{convert|370|Nm|lbft|0|abbr=on}} of torque at 3500-5250 rpm. The same engine is detuned in the W204 sedan and produces {{convert|248|hp|kW PS|0|abbr=on}} and {{convert|251|lbft|Nm|0|abbr=on}} of torque[1][5] References1. ^1 2 3 Mercedes' New V Engine Family 2. ^ 3. ^Mercedes-Benz New V6 and V8 Engines are More Powerful and More Efficient 4. ^http://www.carsguide.com.au/car-news/bad-petrol-denies-us-good-engines-19814#.Vbcd6k0w9aR 5. ^Official: 2011 New V6 and V8 engine family From Mercedes Benz | Autoholiks {{webarchive|url=https://web.archive.org/web/20100920081441/http://www.autoholiks.com/2010/05/official-new-v6-and-v8-engine-family-from-mercedes-benz/ |date=2010-09-20 }} 2 : Mercedes-Benz engines|V6 engines |
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