DEARBORN, MI - Ford will debut its Ford-engineered-tested-and-manufactured 6.7L Power Stroke V-8 turbocharged diesel engine technology in the 2011 F-Series Super Duty truck, according to the automaker.
The new diesel engine is expected to deliver significant improvements in torque, horsepower, and fuel economy while adding more fueling flexibility and meeting stringent new emissions requirements.
The 6.7L Power Stroke uses an "inboard exhaust" architecture, an automotive-industry first for a modern production diesel engine. It combines proven technology with new, patented approaches backed by an extensive laboratory and real-world testing regimen to assure customer satisfaction.
Benefits of the new 6.7L Power Stroke V-8 turbocharged diesel engine include:
- First use of a compacted graphite iron (CGI) engine block in a Super Duty-class vehicle in North America. The block structure was optimized for reduced weight and maximum strength to meet the demands of higher torque and horsepower.
- Unique inboard exhaust and outboard intake architecture to reduce overall exhaust system volume, minimize heat transfer to the engine compartment, and improve NVH (noise, vibration, harshness).
- New engine architecture enables easier service work for all major engine components, potentially reducing down time.
- Honeywell's single-sequential turbocharger features an industry-first double-sided compressor wheel mounted on a single shaft. The unit is uniquely center-mounted on a pedestal low in the back of the valley for improved NVH. This turbocharger design allows the single unit to deliver the benefits of a twin-turbocharger system in a smaller, more efficient package, combining the benefits of a small turbocharger (faster response) and a large turbocharger (ability to compress and force more air into the engine for more power) in one unit.
- The high-pressure Bosch fuel system injects fuel at up to 30,000 psi. The system delivers up to five injection events per cylinder per cycle using eight-hole piezo injectors to spray fuel into the piston bowl. The direct-injection system is calibrated and phased for optimum power, fuel efficiency and NVH
- Aluminum cylinder heads for reduced weight; the mid-deck construction with dual water jackets provides increased strength and optimal cooling; also, six head bolts, instead of four as found on other engines, help improve sealing and maintain cylinder integrity even with the higher firing pressures; overall the engine is about 160 lbs. lighter.
- Compatible up to B-20 fuel, allowing greener fueling options of up to 20-percent biodiesel and 80-percent petroleum diesel.
The new diesel engine, to be built at Chihuahua Engine Plant, features instant-start glow plugs, allowing quick start even in extremely cold temperatures. A key component in its ability to meet new emission standards is the use of Diesel Exhaust Fluid (DEF).
Originally posted on Green Fleet Magazine