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New Delphi 500+ bar GDi system cuts particulates by up to 50% without engine changes

Green Car Congress

With an innovative new sealing system and a new, downsized plunger, Delphi Technologies’ high-efficiency fuel pump delivers the increased pressures needed without increasing the load on the on the engine’s camshaft. Left: GDi 500+ injector. Right: GDi 500+ fuel pump. —Walter Piock, chief engineer, Delphi Technologies.

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New Efficient Supercharger with Variable Drive for Downsized Gasoline Engines

Green Car Congress

The need to reduce CO 2 emissions is leading to downsized engines, heavily boosted by turbo- or supercharging. Gasoline engines are typically less expensive than diesels for the same application but have higher exhaust temperatures, making advanced turbocharging more difficult. million today to 12 million by 2016.

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New Delphi Technologies 500+ bar GDi system cuts gasoline particulate emissions by up to 50%, reduces fuel consumption

Green Car Congress

Reducing the number of exhaust gas particulates, including those smaller than 23 nm, will help manufacturers meet increasingly stringent future global emissions standards. Delphi 500+ bar GDi pump. This reduces emissions in regulated testing including RDE (Real Driving Emissions). —Walter Piock.

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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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ICCT: decline in diesel sales will have negligible impact on attainment of European CO2 emission standards

Green Car Congress

The share of diesel vehicles among new car registrations in the EU decreased from a peak of 55% in 2011 to 49% in 2016; recent data suggests that diesel shares continue to fall. On top of the higher energy density of diesel fuel, diesel engines historically possessed a number of efficiency advantages over gasoline engines.

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Porsche unveils 2017 version of 919 Hybrid Le Mans prototype

Green Car Congress

The engine combines downsizing turbo technology with efficient direct fuel injection; it delivers just under 500 hp (368 kW) and is the most efficient combustion engine from Porsche to date. The remaining 40% is generated by the exhaust energy recovery system. To recover exhaust energy, a small turbine is fitted in the exhaust tract.

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