GM revealed details of a new line of Ecotec engines

GM revealed details of a new line of Ecotec engines

Leonid Popov, 21 hours ago. Photo: Stefan Baldauf/ SB-Medien, GM

The new Chevrolet Cruze should appear by the end of this year, initially in the Chinese market. On Kruse buyers will see a couple of engines of the new series.

G grandioznoe update motors Opel is only part of the plan of GM conclusion in light of the global Ecotec family of new generation. A special place is occupied by the group of modular units of small capacity (1.0 to 1.5 liters). About one litre three-cylinder engine 1.0 VVT DI Turbo (LE1) we detail told. But now released more details and features all its «relatives». The lineup of this, by the way, will include 11 engines, issuing from 75 to 165 PS and from 95 to 250 N•m Design has worked to 300 people in multi-center GM in the USA, Germany, China and South Korea. Coordination was the research facility in Michigan.

Four-cylinder engine 1.4 VVT DI Turbo LE2 (left) Americans compared with Volkswagen turbo engine 1.4 series EA211. Was that LE2 in similar regimes is 50% quieter. All of the techniques to reduce noise has adopted a four-cylinder «atmospheric» 1.5 VVT DI L3G (in the centre). Right shows the motor LE1, who made his debut will take place at hatchback Adam Opel already in the current year.

All engines of a new family has one cylinder diameter (74 mm), single spacing, the same height of the block and many other General parameters and units that simplifies mass production. Almost all motors are equipped direct injection (but there will be models with the regular distributed). Phasers at inlet and outlet, four valves per cylinder, intake manifold variable length, which is integrated in the cylinder head exhaust manifolds are some common features. Changing the stroke, and compression ratio (from 10.0:1 for engines with supercharging to 12.5:1 on «atmosfernykh»).

New one litre motor capacity (115 PS) is comparable with the old «atmosferica» 1.6, but 20% cheaper. Even GM says that the newcomer 25% quieter than the three-liter turbo engine Ford Ecoboost.

Rigid aluminium block and cylinder, made by the method of casting under high pressure, is not only the suppression of noise, but on their shift toward higher frequencies, which are easier to isolate noise absorbing materials. With the same purpose tightened the manufacturing tolerances bearing. Options turbo received forged crankshaft. Reduces friction and noise are called jet of oil applied to the piston. Silent chain with inverted teeth, optimized drive attached units, requiring less tension than before, oil pump Assembly (assembled inside of the tray), acoustically insulated fuel ramp — there are many solutions, reducing noise. Even turbocharger was designed to reduce the characteristic for turbines whistle.

By 2017, the new range of engines will be releasing five plants in the USA, Hungary, China, Mexico and South Korea, while the total production to reach 2.5 million units. New «Ekotek» will receive a residence permit under the canopies of 27 models of five grades. In particular, the following Chevrolet Cruze equip «atmosferica» 1.5 and 1.4 turbo engine (not to be confused with the unit 1.4 Ecotec the previous generation, appeared on Kruse current generation). The impact of this pair will reach 113 PS (140 N•m) and 148 PS (235 N•m). And along with the turbo will debut a new «robot» with two clutches.

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