In addition, high precision direct
fuel injection further enhances performance and fuel efficiency.
Not exact matches
Next in line to
further decrease CO2 form cars come downsized turbo GDI (gas direct
injection) engines and they emit much more ultrafine particles and NOX than regular natural aspirated engines with PFI (port
fuel injection) and even more than some Euro6 diesels with particle filter.
I have an old car (but with electronic
injection) that predates by
far start / stop systems which are used nowadays to save
fuel (turning off the engine brings savings after 3 - 5 seconds, see Calculating...
A slight power reduction was a result of this update, but in 1978, a series of
further engine upgrades restored original performance levels under the new
fuel injection systems.
This petrol motor has been fitted with 4 cylinders that
further have 16 valves in it along with a PGM - Fi (programmed electronic
fuel injection) system, which helps this sedan in generating a healthy mileage.
Further improving engine performance, the GT features an all - new port and direct dual
fuel -
injection setup to enhance engine response.
The combination of BMW Twin Turbo Technology and High Precision
Injection offers a level of performance a naturally - aspirated power unit would only be able to provide with a larger number of cylinders and extra displacement, meaning
far higher weight and significantly greater
fuel consumption.
The common rail
injection system has also undergone
further development: it has a maximum operating pressure of 2,000 bar and can therefore inject
fuel in an extremely precise spray pattern.
This hatchback is fitted with a power packed 1.5 - litre dCi engine, which has been
further equipped with four cylinders that have a total of eight valves and the highly acclaimed common rail direct
injection fuel supply system in it.
Integration of the Multiair Direct air mass control with Direct gasoline
Injection to
further improve transient response and
fuel economy.
In comparison with the straight - six featuring Twin Turbo technology and High Precision
Injection already featured in several model series, the engine at the same time offers a
further reduction of
fuel consumption by up to 9 %.
An aluminum / magnesium engine block (again, exclusive to BMW), hollow camshafts, plastic camshaft cover, improved combustion chambers, a
further evolved Double VANOS, higher
fuel injection pressure, sophisticated engine electronics, an electric coolant pump, a variable - volume oil pump and an oil / coolant heat exchanger are the other weight - saving features and improvements of this engine over previous generations.
VTEC Turbo, the most recent VTEC development, takes it one step
further with direct
fuel injection and a turbocharger.
Researchers at Jilin University in China report in a papaer in the journal
Fuel that coolant temperature in a gasoline direct -
injection (GDI) engine under idle has a critical effect on particulate number (PN) emissions and that optimizing other operating parameters will
further reduce PN emissions.
The charge cooling effects of the direct
injection fuel system have allowed the compression ratio of the naturally aspirated engine to be raised to 11.5:1,
further improving the engine efficiency.
The cooling effect of the directly injected
fuel also results in a higher compression ratio than on port
injection engines, bringing
further efficiency improvements.
As
far as propulsion the RLX Concept uses Acura's Sport Hybrid SH - AWD system which comprises from a 3.5 - litre V6 with direct
fuel injection linked to a 7 - speed dual clutch gearbox and three electric motors.
Likewise, Honda hasn't yet gone to direct
injection, which could
further improve its
fuel economy.
This motor is
further incorporated with a common rail
fuel injection system that assists in delivering a mileage in the range of 9.4 to 13.5 Kmpl, which is quite decent.
This new engine could have
far more modern technology like dual overhead cams, forced induction, a variable pressure oil pump, direct
fuel injection and a smaller displacement.
The powerplant sets standards in various areas such as its aluminium crankcase, its common - rail direct
injection and turbocharger with variable turbine geometry which allow it to combine impressive punch with a
further reduction in
fuel consumption and emissions.
Incorporating BMW's award - winning High Precision Direct
Injection and Valvetronic technologies, its smooth performance is equaled by spectacular
fuel efficiency, taking you
further on every gallon of gas.
To do this, Mazda has
further developed several elementary technologies — a new piston head design and super-high-pressure
fuel injection system to support compression ignition, and a high - response air supply which can deliver larger amounts of air — and combined these with an in - cylinder sensor which serves to control the entire engine.
The flagship MINI Cooper S Countryman is powered by a 1,6 - litre, four - cylinder petrol engine, supplemented not only by a twin - scroll turbocharger and direct
fuel injection, but also fullyvariable valve management — so offering by
far the best relationship between engine power and
fuel consumption in its class.
Porsche had to revise the engines to include Direct
Fuel Injection to
further lower and meet new Euro emission standards and that it seems was reason enough for the mid-life face - lift that was nevertheless due.