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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. The concept places particular demands on the boosting system.

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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

Green Car Congress

Cost of the new engine relative to gasoline baseline. The approach that Cummins and partners have taken features: Replacing the aluminium V8 gasoline engine and emission control system with smaller diesel (2.8-liter) 2013) “Cold Start Concept (CSC): A Novel Catalyst for Cold Start Emission Control,” SAE Int. Earlier post.).

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HyBoost concept achieving close to Prius-level CO2 emissions; aggressive downsizing with advanced boosting and micro-hybrid system

Green Car Congress

HyBoost achieves this by combining aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance, and a micro-hybrid stop-start and energy recuperation systems, Boggs said. Downsizing the 2.0-liter Click to enlarge. Click to enlarge. —David Boggs. Micro-hybrid market.

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HyBoost demonstrator debuts at LCV2011; 50% by swept volume downsizing with low-cost electrification

Green Car Congress

Together the partners have sought to demonstrate an extremely cost-effective, ultra-efficient gasoline engine in a C-segment passenger car delivering the performance of a baseline 2.0-liter The HyBoost concept is based on a 2009 Ford Focus in which a 2.0L naturally aspirated four-cylinder gasoline engine has been replaced with a 1.0L

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PSA to commercialize SwRI-developed Dedicated-EGR technology in high-efficiency gasoline engines by 2018

Green Car Congress

The D-EGR concept dedicates one (or more) cylinders to EGR production and fuel reforming. PSA concept D-EGR engine. The results showed that the concept results in large gains in fuel efficiency over a baseline, low compression ratio engine and significantly reduces the exhaust emissions from the other 3 cylinders.

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Volvo to concentrate on hybrids and downsized engines for US

Green Car Congress

The XC60 Plug-in Hybrid Concept was introduced at the Detroit Auto Show. The direction for the US was underscored by the unveiling of the XC60 gasoline-electric Plug-in Hybrid Concept at the show. The engine in the XC60 Plug-in Hybrid Concept has no conventional starter motor or alternator. Click to enlarge. Earlier post.)

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Concept: Downsized and Supercharged Hybrid Pneumatic Engine for 30%+ Reduction in Fuel Consumption

Green Car Congress

Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. The reduction in fuel consumption is obtained mainly through enabling the effective use of a heavily downsized engine, rather than from regenerative efficiency. The hardware concept. Source: ETH Zürich. Click to enlarge. Earlier post.).