P... – a total of more than 410,000 vehicles – from the Fiesta hatchback family car to the Transit Connect van. The 1.0 EcoBoost features a cast iron block and cast iron four-bearing crankshaft with six counterweights, with a displacement of 999 cc achieved by a long stroke( 71.5 x 82 mm) threecylinder in�line configuration�
It has an aluminium alloy cylinder head with four valves per cylinder, an integrated water-cooled exhaust manifold, independent variable timing for both the intake and exhaust camshafts, and a small intercooled Continental low-inertia turbocharger running at up to 248,000 rpm. Somewhat unusual, the low-friction internal camshaft drive belt runs in an oil bath, with a dynamic tensioner, to reduce friction and diminish engine noise.
An electronically controlled��ariable displacement oil pump�is also used, for impro�ed efficiency and fuel economy, along with a split cooling system with two thermostats, in order to assure a fast warm�up period along with efficient high� speed lubrication and cooling.
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Engine management is by Bosch MED17 with CAN-Bus and individual cylinder knock control, with direct fuel injection into the centre of each cylinder achieved by high pressure 6-hole injectors.
Euro Stage 5 emissions control is assured by a close coupled three-way catalyst system with a heated universal oxygen sensor and a catalyst monitor sensor mounted post catalyst.
A video presentation detailing the design and operation of the 1.0 EcoBoost engine can be found at www. youtube. com / watch? v = IFj5UIZx2cE
The 100 hp version is used in conjunction with a 5-speed Durashift( iB5) manual gearbox, while the 125 hp engine has the 6-speed( B6) Durashift manual transmission, making it capable of a 0-62 mph acceleration time of 11.3 seconds and a top speed of 120 mph for the Focus 5-door model, while the 100 hp 5-speed model achieves a combined fuel consumption figure of 58.8 mpg and is capable of a range of o�er 600 miles between refills�
CYLINDER DEACTIVATION From early 2018, the 1.0-litre EcoBoost engine has featured cylinder deactivation technology. It is a world first for a three�cylinder engine, delivering reduced running costs by automatically stopping one of the engine’ s cylinders when full performance capacity is not needed, such as when coasting or cruising with light demand on the engine. With no compromise in performance or refinement, a new dual�mass �ywheel and a �ibration�damping clutch disc help to neutralise engine oscillations when running on just two cylinders.
Developed by Ford engineers in the UK, Europe and USA, in conjunction with �chaef�er �roup, the technology impro�es fuel efficiency by up to 6 per cent, as well as reducing CO 2 emissions, by cutting pumping and friction loses inside the engine. Able to operate at up to 4500 rpm, it can disengage or re-engage one of the three cylinders in 14 milliseconds – 20 times faster than the blink of an eye.
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