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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

Gasoline direct-injection (GDI) engines have higher fuel economy compared to the more widely used port fuel injection (PFI) engines. emission control technologies, and vehicle age and maintenance history. … For our fleet, increases in the fuel economy of 1.6% (0.5−2.4%; —Saliba et al.

Fleet 207
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BorgWarner Engine Timing Systems Will Drive Fiat Two-Cylinder TwinAir Engines

Green Car Congress

To achieve its goals of lower emissions and better fuel economy, FPT significantly downsized the 0.9-liter Dedicated tensioner tuning, an optimized layout and an enhanced design minimize friction to help improve fuel economy and reduce emissions. liter TwinAir engine compared with its 1.2-liter

Engine 170
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Westport unveils proprietary enhanced spark-ignited natural gas system; up to 10% improvement in power and torque over diesel

Green Car Congress

The new approach to natural gas combustion technology is designed to provide vehicle and engine original manufacturers (OEMs) with a “downsized” natural gas solution that is cost competitive while providing similar levels of power, torque, and fuel economy to a larger diesel engine.

Diesel 259
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Westport and GTI awarded $900,000 to advance natural gas combustion technology; ESI with high frequency corona discharge ignition

Green Car Congress

Using 100% dedicated natural gas as fuel, Westport’s ESI technology optimizes the combustion and thermal efficiencies of the engine by taking full advantage of the ultra-high octane performance fuel properties of natural gas.

Gas 150
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Opel presents new midsize gasoline engine at Aachen Colloquium; fuel consumption down 13%, torque and power up 33%

Green Car Congress

The 170 hp engine has been developed with fuel economy, high low-end torque and elasticity in mind, while the performance of the 200 hp unit makes it the benchmark in its class. The valve train is operated by low-friction hydraulic roller finger followers and driven by a timing chain with a maintenance-free hydraulic tensioner.

Gasoline 350
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Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

Green Car Congress

General project targets were to deliver diesel-like or better fuel economy using E10 gasoline (RON91), and to achieve low engine-out NO x and PM using low temperature combustion, the intention being to avoid the cost of aftertreatment for NO x and PM, in addition to meeting more stringent standards. —Sellnau et al.

Gasoline 304
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DOE to award up to $137M for SuperTruck II, Vehicle Technology Office programs

Green Car Congress

Develop and demonstrate technologies to enable a downsized, boosted, lean, low temperature gasoline combustion engine system that improves fuel economy while meeting emissions requirements. valve faces, piston crowns, and exhaust ports) to improve fuel economy. General Motors. HRL Laboratories, LLC. Description.

Vehicles 150