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MKS Ecoboost
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  Lincoln MKS Ecoboost

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Country of origin:United States
Introduced in:2009
Introduced at:2009 NAIAS
Source:Company press release
Last updated:January 15, 2009
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Click here to download printer friendly versionLaunched last summer, the Lincoln MKS upholds the luxury and comfort standards unique to Lincoln. Now, with the addition of all-new EcoBoost engines, the Lincoln MKS also will deliver a compelling combination of V-8 power and V-6 fuel economy.

The Lincoln MKS is among the first Ford Motor Company vehicle to introduce a premium twin-Turbocharged 3.5-liter EcoBoost V-6 engine for the 2010 model year and is expected to deliver best-in-class highway fuel economy of 25 mpg. By 2013, more than 90 percent of Ford Motor Company's North American lineup will be available with EcoBoost technology.

"We are committed to delivering fuel economy leadership in every new vehicle," said Derrick Kuzak, Ford's group vice president of Global Product Development. "We do this with affordable technology that can be applied to the widest number of vehicles. EcoBoost is an important component of that goal.

"The beauty of EcoBoost is that it enables us to downsize for fuel efficiency, yet boost for power. We're able to decrease the size of the available engine - such as installing a V-6 versus a V-8 - yet boost the power using Turbocharging to deliver similar power and torque of that larger engine."

The 3.5-liter EcoBoost V-6 is expected to attain fuel economy numbers of 16 mpg city and 25 mpg highway based on preliminary testing of the all-wheel-drive 2010 Lincoln MKS while producing an estimated 355 horsepower at 5,700 rpm and 350 lbs.-ft. of torque at 3,500 rpm.

With its premium EcoBoost engine, the new Lincoln MKS will deliver more power and better highway fuel efficiency than the 2009 Lexus GS460 (24 mpg) or 2009 Infiniti M45 (21 mpg).

"We're delighted with how well the Lincoln MKS has been received. Customers have really responded to the vehicle's balanced combination of luxury, comfort and performance," said Pete Reyes, chief nameplate engineer. "Adding the 3.5-liter EcoBoost V-6 is another great enhancement to our luxury sedan. We now can deliver V-8 power without sacrificing fuel economy."

The Lincoln MKS will be among the first vehicles to receive the 3.5-liter EcoBoost V-6 starting in the summer of 2009, enhancing what's already a strong package. Standard on the Lincoln MKS EcoBoost series will be 19-inch wheels, steering-wheel paddle shifters to the six-speed SelectShift automatic transmission, all-wheel drive and an expanded technology package that includes Intelligent Access with Push Button Start, ambient lighting, adaptive HID headlamps with Auto Highbeam, rain-sensing wipers and rear-window power sunshade.

"The Lincoln MKS EcoBoost series provides customers the best combination in style, technology and power," said Pei-Wen Hsu, Lincoln MKS Marketing manager. "An EcoBoost appearance package also will be available, offering customers a more aggressive and sporty look that further differentiates the Lincoln MKS from other competitors."

The EcoBoost program is part of Ford's ongoing and wide-ranging initiative to deliver innovative fuel-efficient powertrain systems with horsepower and torque performance found in larger-displacement engines.

"Our EcoBoost engines offer more power and better fuel economy," said Brett Hinds, EcoBoost design manager. "It's all part of Ford's strategy to bring adaptable powertrain technology to all kinds of vehicles and all kinds of lifestyles. This technology is affordable and applicable to all gasoline engines."

The Turbochargers recover energy from the exhaust that otherwise would be wasted and put it back in the engine to gain efficiency. Simply, the Turbocharging system puts more air into the engine for more power. A compressor increases or "boosts" the pressure of the air entering the engine. An intercooler reduces the air temperature before it enters the engine.

The twin parallel Turbochargers, which are water-cooled and operate simultaneously, combine with a direct-injection fuel system to produce power when the driver pushes down on the accelerator pedal. The high-pressure fuel pump operates up to 2,175 psi - more than 35 times the norm seen in a conventional V-6 engine. The high-pressure pump is a cam-driven mechanical pump with a single piston and an electronic valve that controls how much fuel is routed into the fuel rails to the injectors.

As demands on the twin-Turbocharged 3.5-liter EcoBoost V-6 engine are increased, the control system responds to maintain optimal combustion, timing and injection duration.

On each stroke, six individual jets spray fuel directly into the combustion chamber, mixing with the incoming air. "By bringing the fuel injector right into the combustion chamber, there's no delay from the time you inject the fuel to when it's used by the engine," Hinds said.

The fuel injectors are located on the side of the combustion chamber. When the fuel is injected into the cylinder, it evaporates and cools the air that's been inducted into the cylinder. "Another benefit of our direct-injection method is that it cools the air right where you're going to burn it," Hinds said. "This action both improves the breathing of the engine and minimizes knocking."

The direct injection of fuel into the cylinder also helps provide a well-mixed air-fuel charge, increasing engine efficiency. Direct injection provides several benefits in terms of fuel burn and lower emissions.

"Because the fuel is directly introduced into the combustion chamber, you don't get fuel wetting the combustion wall like with port Fuel Injection, you don't saturate the ports and you don't get droplets that might recombine and add to saturation," Hinds said. "By injecting fuel directly into the combustion chamber and under high pressure, the fuel can be directed to exactly where we want it to be for a given combustion cycle."

The spray pattern for the fuel was optimized after extensive computer modeling work, with the angle of how the fuel is sprayed key to the process. "The better combustion process is a big advantage of direct injection," Hinds said. "In a port fuel system, at key off it's possible to have fuel on the walls of the intake port, which migrates to the top of the valve and puddles. So when you key on, you get that emissions spike. Direct injection is much cleaner from that standpoint."

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  Article Image gallery (6) Specifications User Comments (1)