Remove Convert Remove Exhaust Remove Maintenance Remove Sodium
article thumbnail

Mercedes-AMG brings cylinder deactivation to 5.5L V8; 30% reduction in fuel consumption

Green Car Congress

The selectable actuators are integrated into the cylinder heads, and keep the intake and exhaust valves of cylinders two, three, five and eight closed. Optimal charging of the combustion chambers is ensured by large intake and exhaust valves. The exhaust valves, which are subject to high thermal loads, are hollow and sodium-cooled.

Mercedes 225
article thumbnail

Strong Global Sales for Chevrolet Cruze Prior to US Introduction; More Details on Its New Small-Displacement Engines

Green Car Congress

The compressor wheel is being driven by hot exhaust gases coming out of the exhaust manifold. A wastegate opens to regulate the compressor drive power by letting excess exhaust gases escape through the exhaust pipe. Sodium-filled exhaust valves are designed for the higher combustion temperatures of the turbo system.

Chevrolet 249
article thumbnail

ARPA-E awards $55M to 18 projects in two new programs: TERRA for transportation energy and GENSETS for distributed generation

Green Car Congress

Breeding High Yielding Bioenergy Sorghum for the New Bioenergy Belt Clemson University, along with the Carnegie Mellon Robotics Institute and partners, will phenotype an exhaustive set of international germplasm and plant varieties. Clemson University. Tour Engine. High Efficiency Split-Cycle Engine for Residential Generators Tour Engine Inc.