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Simulation study suggests ORC waste heat recovery system could deliver potential 7% improvement in fuel consumption in a PHEV on highway

Green Car Congress

Internal combustion engines have been significantly improving in the past decade, after the adoption of technologies such as Gasoline Direct Injection, mild electrification, downsizing and turbocharging. The OSU EcoCAR prototype vehicle features an extended-range electric architecture with a downsized 1.8L —Skarke et al.

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Ricardo’s “deep” Miller cycle concept: Magma

Green Car Congress

In its new report on downsized and boosted gasoline engine technologies ( earlier post ) the ICCT highlighted Ricardo’s work on an “extreme” Miller cycle concept with high (13:1) compression ratio (CR) and central direct injection in a downsized boosted engine. A long exhaust stroke then extracts maximum efficiency.

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Ricardo to display functional integration prototype of ADEPT 48V “intelligent electrification” diesel

Green Car Congress

Based on a Ford Focus, this ADEPT prototype incorporates a 48V electrical architecture, a SpeedStart 10kW (later to be upgraded to 12.5kW) belt integrated starter generator and TIGERS turbine integrated exhaust gas energy recovery system, both switched reluctance machines supplied by CPT, and an advanced lead carbon battery pack provided by EALABC.

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FEV to show 2nd generation diesel High Efficiency Combustion System at 2011 SAE World Congress

Green Car Congress

Implementation of a high-performance glow plug system. The second-generation HECS has been adapted to a downsized 1.6L A dual-wall exhaust also reduces heat loss in order to accelerate catalyst light-off during cold starts. Also key to engine performance is thermal management, which is accomplished in a number of ways.

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Lotus to Introduce Range Extender Engine

Green Car Congress

The Lotus Range Extender engine features an innovative architecture comprising an aluminum monoblock construction, integrating the cylinder block, cylinder head and exhaust manifold in one casting. Integrated Exhaust Manifold. An integrated exhaust manifold has potential to: Reduce parts count: 18 fewer components resulting.

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Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Green Car Congress

A higher compression ratio can be used if an engine will operate primarily at light loads, such that degraded efficiency at high loads is more than offset by improved efficiency at light loads. fuel with higher ethanol content—for part- and full-load operation for different engine types and fuel assumptions.

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Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

Green Car Congress

Since this energy loss is primarily thermal in nature and can be attributed to the exhaust, cooling system, and engine and transmission surfaces, Mazda’s R&D team’s central focus is on improving the engine’s thermal efficiency cost-effectively. This corresponds to a 23% reduction in fuel consumption and, therefore, CO 2 output.).

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