Auto Shows Infiniti's variable compression engine in the 2019 QX50 is the first of its kind

17:42  29 november  2017
17:42  29 november  2017 Source:   Autoblog

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engine in the 2019 QX 50 is the first of its kind originally appeared on Autoblog on Tue, 28 Nov 2017 20:00:00 EST. The world' s first variable compression ratio engine is here, in a production car. That car is the 2019 Infiniti QX 50 , debuting this week at the Los Angeles Auto Show.

Last year, Infiniti announced plans to build a Variable Compression Turbo engine , the first of its kind in a production vehicle. Infiniti QX 50 Could be the First to Receive VC-T Engine . It ' s set to debut at the Detroit Auto Show.

The world's first variable compression ratio engine is here, in a production car. That car is the 2019 Infiniti QX50, debuting this week at the Los Angeles Auto Show. The midsize crossover has seen a refresh that has brought it an all-new platform together with new driver assist features, but it's the engine that's the centerpiece here.

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infiniti qx50
infiniti qx50

Nearly everything is continuously variable under the hood of the QX50 – not only the new shift-by-wire XTRONIC CVT. The new VC-Turbo gasoline engine is able to change its compression ratio from 8:1 to 14:1, or anything in between depending of the driving situation; whether there is need for top-end power or turbodiesel-like torque from low revs, or optimized fuel economy. The pistons' reach is continuously adjusted by an electric "Harmonic Drive" motor, which controls a multi-link system, affecting the top-dead-center of the pistons and changing the compression. The engine can also switch between efficiency-maximizing Atkinson cycle and regular combustion cycle, on the go – and there's both multipoint injection and gasoline direct injection employed.

Infiniti Teases New Model, Technology Ahead of L.A. Auto Show

  Infiniti Teases New Model, Technology Ahead of L.A. Auto Show Is that you, QX50?

2019 Infiniti QX 50 will make public debut at the LA Motor Show. The one-of-a- kind production variable compression ratio engine of the all-new Infiniti QX 50 is quite a crackerjack. This humongous SUV has its 2.0 liter four cylinder engine that comes with VC-Turbo.

Infiniti is gearing up to introduce the 2019 QX 50 at the Los Angeles Auto Show and the company This will reportedly enable the QX 50 to accelerate from 0-60 mph faster than any of its Thanks to variable compression technology, the engine manages to be both powerful and fuel-efficient.

Related Video: The 2019 Infiniti QX50 has arrived(Provided by Autoblog)

The result is 268 horsepower at 5,600 rpm and 280 pound-feet of torque at 4,400 rpm; good figures for a 2.0-liter four-cylinder gasoline engine with a single-scroll turbocharger. Infiniti says that the FWD version's fuel economy of 27 miles per gallon combined is 35-percent better than the previous-generation V6 engine; in AWD guise, it reaches 26 mpg, which is a 30-percent improvement. The new engine is pretty much all-aluminum, but the vaguely magical-sounding "transformative multi-link components" behind the variable compression system are made from high-carbon steel alloy.

a silver car on display© Provided by AOL Inc.

The engine's multi-link system also enables it to do away with any balancing shafts, and Infiniti compares its smoothness to a V6 rather than a regular four-cylinder. In addition to the aforementioned tech, the VC-Turbo engine has the world's first active engine mount vibration damping system to smoothen its operation even further.

2019 Infiniti QX50: Luxury looks and a new kind of engine .
Luxury looks and a new kind of engine<br>Infiniti’s VC-T engine (for Variable Compression, Turbocharged) can change how far its pistons rise in its cylinders, which changes the engine’s compression ratio, a parameter that, heretofore, had been fixed. Infiniti’s engine can bump the compression ratio from a low of 8.0:1 to a high of 14.0:1. Changing an engine’s stroke usually requires a new crankshaft. Instead, Infiniti’s engine introduces a joint between the crankshaft and the connecting rods, and moves the joint with a computer-controlled arm. In the process of changing how high the pistons move, the mechanism incidentally varies the stroke by 1.

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