Green Car Congress

MAY 9, 2012

The VEMB system uses a concentric camshaft, blow-down manifold and scavenge manifold to separate the exhaust event into two phases: high-energy blow-down to the turbo without pumping losses, and high-hydrocarbon scavenge to the EGR system. Source: Borgwarner. Click to enlarge. Total cost of implementation is much less than $10/1%, he said.

Fuel Economy 218

Fuel Economy Downsizing Economy Engine 218

Green Car Congress

MAY 20, 2012

Simulation study finds Miller version of Scuderi engine can deliver twice the BMEP as naturally aspirated version, theoretically enabling 50% downsizing while maintaining performance. Applying the Miller cycle to the Scuderi engine (right) entails downsizing of the compression cylinder. Source: Scuderi. Click to enlarge.

Downsizing 257

Downsizing Engine Fuel Power 257

Green Car Congress

MAY 23, 2009

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 engine has two intake and two exhaust valves per cylinder. Dönitz et al.

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Downsizing Concept Engine Hybrid 170

Green Car Congress

NOVEMBER 17, 2013

Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter Two pivotal factors are the three-port integrated exhaust manifold cylinder head and a twin-scroll turbocharger. The all-new 2015 Lincoln MKC small premium utility, unveiled last week, offers an all-new engine—a 2.3-liter

Louisville 286

Louisville Exhaust Future Fuel Economy 286

Green Car Congress

FEBRUARY 1, 2009

Researchers at ETH Zürich are developing a pneumatic hybrid engine—an internal combustion engine connected to a compressed air tank instead of a battery system. The compressed air supply also allows extreme downsizing. Downsizing the engine in this instance halves the number of cylinders from four to two. Rüegg / ETH Zurich.

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Hybrid Engine Downsizing 2009 199

Green Car Congress

AUGUST 20, 2013

A team at Monsanto and colleagues at AVL Powertrain have successfully designed and demonstrated an onboard low-temperature ethanol reformer that can be driven by exhaust heat. Many papers have described high-temperature steam reforming of ethanol at around 600 °C but.this temperature is too high to be driven by engine exhaust.

Fuel Economy 230

Fuel Economy Exhaust Economy Fuel 230

Green Car Congress

APRIL 14, 2011

MAHLE’s TJI system is characterized by auxiliary pre-chamber fueling; small orifices connecting the main and pre-chamber combustion cavities and a very small pre-chamber volume. Continuously variable camshaft phasers for both the intake and exhaust enabled variable valve timing. —Attard et al.

Fuel Economy 210

Fuel Economy Economy Engine Fuel 210