Green Car Congress

OCTOBER 12, 2009

The remaining two-thirds are lost as waste heat going into the environment through the car’s exhaust emissions and through the radiator. Use of the thermal energy contained in the car’s exhaust gas also offers major saving and comfort potentials.

BMW

Green Car Congress

MARCH 6, 2014

The high efficiency of the Porsche 919 Hybrid is the result of a balanced overall concept. The first system is the innovative recovery of thermal energy by an electric generator powered by exhaust gases. The batteries at the center of the vehicle supply the electric motor at the front axle with energy. Click to enlarge. The 470 hp, 4.0-liter

Porsche

Green Car Congress

NOVEMBER 24, 2015

The unthrottled nature of the compression ignition process provides high engine efficiency while achieving compliant exhaust emissions with conventional, low-cost aftertreatment. This—in addition to the opposed engine architecture—could increase fuel efficiency by 40-50% over the comparable spark-ignited gasoline engine, Achates said.

Gasoline

Green Car Congress

NOVEMBER 17, 2015

TDI quattro plug-in hybrid ( earlier post ); the Audi A7 h-tron quattro fuel cell vehicle ( earlier post ); the Audi e-tron quattro concept battery-electric SUV ( earlier post ); the Audi TT clubsport turbo concept ( earlier post ); the Audi RS 5 TDI competition concept ( earlier post ); and the Audi R18 e-tron quattro ( earlier post ).

Audi

Green Car Congress

APRIL 15, 2014

Founded in 2004, Achates Power is designing and developing engines based on a two-stroke, opposed-piston, compression-ignition technology. Two-stroke engines need to maintain an appropriate pressure difference between the intake and exhaust ports to scavenge exhaust out of the cylinder after combustion and push in fresh air.

Diesel

Green Car Congress

JUNE 3, 2016

Professor Song and other colleagues first outlined their concept of a ballistic rectifier for the study of electron transport through semiconductor devices in a 1998 paper: Here we introduce a novel device geometry which is particularly suitable to study the effects of reduced symmetry on the nonlinear ballistic transport properties.

Waste

Green Car Congress

FEBRUARY 4, 2013

Since the pistons cyclically expose or occlude the exhaust and intake ports, there is no valve train. Because the intake and exhaust ports are at the opposite ends of the cylinder, opposed-piston engines have efficient, uniflow scavenging. Scavenging continues until a 230° crank angle, at which time the exhaust ports close.

Diesel

Green Car Congress

JANUARY 17, 2011

two split pairs) operating in a 2004 Chevrolet Cavalier would consume 25% less fuel under the FTP (Federal Test Procedure) than the comparable standard gasoline engine, while matching power and torque. A naturally aspirated Scuderi Air-Hybrid configuration consumes 30-36% less fuel under similar drive conditions, the simulations found.

Engine

Green Car Congress

MAY 14, 2015

The new Audi engine combines shorter intake events with a high geometric compression ratio; together with other refinements to the basic engine, the new combustion concept enables a reduction in combined cycle CO 2 emissions of up to 10-12 g/km compared to its predecessor. Fuel consumption maps comparing Gen.3 In addition to the Gen.3B

Audi