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

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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.).

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NREL announces $18M investment in 9 new projects to advance medium- and heavy-duty natural gas vehicle technologies

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The selected projects will focus on reducing the total cost of ownership of NGVs, increasing vehicle efficiency, decreasing local air pollution, and advancing technology development to increase the use of more affordable medium- and heavy-duty natural gas engines and vehicles. Cummins Inc. CNG Full Fills with a Complete Smart Fueling System.

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

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Exhaust system configuration. 2013) “Cold Start Concept (CSC): A Novel Catalyst for Cold Start Emission Control,” SAE Int. Taking learnings from LTD and LDECC programs to utilize PCCI (pre-mixed charge compression ignition) and high charge flow operation. Weigert, E., Fuels Lubr. 6(2):372-381 doi: 10.4271/2013-01-0535.

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Continental introducing innovative annular catalytic converter for near-complete NOx reduction to meet RDE and SULEV 30 standards

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Continental will present an innovative close-coupled annular catalytic converter that supports near-complete NO x conversion in downsized turbocharged gasoline engines at the 37 th Vienna Motor Symposium next week. Markus Distelhoff, Executive Vice President Fuel & Exhaust Management Business Unit in Continental’s Powertrain Division.

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

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The D-EGR concept dedicates one (or more) cylinders to EGR production and fuel reforming. In the inaugural study reported in an SAE paper in 2009 (2009-01-0694), SwRI ran a 4-cylinder engine with cylinder 1 exhausting directly to the intake manifold, leading to a constant 25% EGR level. PSA concept D-EGR engine.

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Advanced ADEPT 48V affordable mild hybrid on path to meet future ultra-low vehicle emissions

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The concept of “intelligent electrification” enables highly aggressive engine downsizing and down-speeding beyond what might normally be possible other than through more expensive hybridization approaches. Rated at 2.4kW, TIGERS is capable of providing further power recuperated from the exhaust downstream of the turbocharger.

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