EcoBoost is Ford's new trademark with the technology package consists of a Direct Injection , Turbocharger and Ti - VCT ( open-close and high-lift valve which can vary ) ! With the package , engine performance can be improved . For example, the 1.0 -liter EcoBoost engine capability together with a non - EcoBoost 1.6 liter ( non- turbo , using the injection port or indirectly ) .
Ford EcoBoost engine package consisting of various capacities , including a 1.0 -liter ( 3 - cylinder ) , 1.6 liter and 2.0 liter ( 4 cylinder ) and the largest is the 3.5 -liter , V6 . This strategy was chosen before heading to Ford for hybrid cars with more expensive and complicated technology . In this way , the price of the car is sold to the consumer will be more affordable but relatively more efficient and carbon dioxide ( CO2 ) is low .
EcoBoost is actually the same as the strategy that has been done by other brands , such as Mazda with SKYACTIV , with EfficientDynamics BMW , Mercedes - Benz BlueEFFICIENCY through and by the VW BlueMotion .
3 cylinders
Engine with direct injection system , turbocharger , for the 1.0-liter 3-cylinder is no longer a new technology in the automotive realm . The combination of direct injection engine plus turbocharger has been used by the German cars sold in Indonesia , among others, BMW and Mercedes - Benz , Audi and VW . Japanese brands are also there which use direct injection , which is Mazda Skyactiv technology package . Most brands , Japan , such as Toyota and Honda also uses direct injection technology !
For the 3 - cylinder , already used by the cheapest car ( LCGC ) in Indonesia , namely Toyota and Daihatsu Agya Ayla . The difference, yet without using direct injection and a turbocharger . Even Daihatsu 3-cylinder engine has been using since the 1980s in Indonesia .
vibration
3 cylinder engine , the vibrations louder than the 4 -cylinder . Because the imbalance due to an odd number of pistons at work . The first two cylinders can be balanced , but one cylinder again myself ! This can lead to an imbalance and vibration !
To eliminate vibration , mechanical engineers install ballast weights or " counter balance / weight" . But Ford said , do not choose this way . The reason , ballast weights will increase the weight of the machine . Ford let alone , however, makes flywheel or clutch with a special design ( given reducer ) and use -in - oil belt drive . In this way , Ford claims , 3 cylinder engine vibration was not until " mengoncang " car and its passengers .
Number of Components
With a three- cylinder , Ford expects the number of components used less, while reducing the inter - component machines . The reason this is unacceptable! DOHC 4 - valve per cylinder , 16 valve has confirmed ( also had 16 per ) , the trigger valve ( rocker arm ) , 16 nok ( cam ) , 4 piston with rings , 4 piston , crankshaft journals 4 .
Compare this with the 3 -cylinder engine , it only took 12 valves . 12 trigger , 3 - piston and ring , 3 and 3 piston crankshaft journal . As the number of components is reduced , so the engine is lighter . So is friction between components . This concept is only used for the 1.0 -liter engine , while the 1.6 -liter , 4 -cylinder fixed !
Direct injection
Now this is the transition of technology from an indirect injection system or port injection ( PI ) system to direct injection ( DI ) . Ford also call this direct injection with Spark Ignition Direct Injection ( SIDI ) . While other brands call it Gasoline Direct Injection ( GDI ) .
At PI , injectors mounted near the suction or suction valve hole . Thus , no gasoline is sprayed directly into the combustion chamber or cylinder . As a result , the possibility of gasoline evaporates or is not 100 percent up to the combustion chamber , very large . While the DI injector is in the combustion chamber .
Gasoline is sprayed directly into the combustion chamber , such as a diesel engine ( piston head is made hollow as the combustion chamber ) . For this , a very high -pressure injector should ( because the pressure inside the engine too high ) . Injektornyan also very sophisticated ( now using piezoelekttrik ) who worked very precise . While the resulting pressure fuel pump can reach 200 bar or 2,900 psi . Well , as a comparison , or PI indirect injection , fuel pump pressure 85 psi highest .
With the high pressure , the resulting fog better ! The opening is also more apt to occur . The amount of gasoline that is sprayed can be reduced ( thin ) remains the optimal burning . Also the fuel is sprayed can be determined based on the needs engine number . For example , to generate torque in the rev range 1400-4500 rpm .
With DI and turbo , petrol can match the performance of a diesel engine at low speed ( generating greater torque ) and maintain it until the round was . With this addition , the turbo can be quickly activated . In PI , the turbo started working at 2,500 rpm so often happens " turbo lag " ( the same as the carburetor ) .
Even now , with the direct injection system , the engineers have managed to make gasoline engines without having to use a spark plug to produce combustion . Now , the air is compressed until the pressure is coupled with the hot exhaust gases , then sprayed gasoline , direct combustion . Same with the workings of a diesel engine which produces work more efficiently .
turbo-
Turbo is a tool to suck in outside air at once forced her into mesin.Untuk operate turbo , exhaust gases utilized generated by the engine . So the new turbo works after the engine exhaust gas with high enough pressure .
Kalaumesin only use suction power when the piston moves to the bottom dead center ( BDC ) , the amount of air to the combustion chamber is limited because it faces many hurdles . Well , when air is sucked from the outside , then forced into the gasoline , the number or density will be more ( solid ) .
With more density ( solid ) , fuel can also be sprayed more . Combustion will mengahsilkan greater heat energy . If you have this , so the car accelerates faster , no need to press the gas pedal deeper . Few had gained more power more efficiently alias .
Actually there are other factors that determine the outcome of better combustion or optimal , ie the resulting sparks plugs ( including the condition and quality of spark plugs ) and fuel quality ( octane rating ) .
octane
Fuel quality is often associated with an octane rating or Reswearch Octan ( RON. Actually , octane ( used to use lead atgau lead ) , his duty to prevent gasoline burn faster . Higher the RON , the more difficult to burn gasoline . Lho ?
When flammable gas would be very detrimental . For example , when the piston reaches top dead point yet ( TDC on the compression stroke ) , gasoline burns himself because the surrounding temperature has reached the point of combustion . These conditions there is a mention seb agai pre - ignition or premature ignition . There is also when autoignition ( ignition occurs alone ) . Precisely , ignition or combustion occurs before the spark plugs fire flower !
Consequently , should the piston toward the TMA , TMB may be pushed back due to premature ignition or combustion . Because of pressure or explosion resulting very large , large ( spontaneous and uncontrolled ) , can damage the piston and valve ( part closest ) .
The best ignition timing , occurs a few degrees before the piston reaches TDC ( depending on compression ratio ) . The closer to the TDC of course better because it will be more efficient combustion . But this is necessary for higher octane .
Gasoline engine with direct injection can now work with a compression ratio of 14,7:1 ( petrol Skyactiv Mazda ) . But the fuel quality is not the same in every country , usually adjusted again , generally lower .
In fact , for engines equipped with turbochargers , must be lowered again ( because of the air pressure in the higher engine ) . For the 1.0 -liter EcoBoost engine , according to Robert Sharpless , Manager Poweretrain Control , Calibration and NVH for Ford Asia Pacific , because it has a turbo , a compression ratio of 10 : 1 .
