Infiniti QX50’s VC-Turbo engine offers improvement New standards
Infiniti QX50 is powered by Infiniti's new 2.0lt VC-Turbo, the world’s first production-ready variable compression ratio engine, justifiably considered one of the most advanced internal combustion engines ever created.
This unique variable compression technology represents a breakthrough in combustion engine design. The engine continually transforms, adjusting its compression ratio to optimise power and fuel efficiency. As a result, it combines the power of a 2.0lt turbocharged gasoline engine with the torque and efficiency of an advanced four-cylinder diesel engine.
The VC-Turbo changes its compression ratio seamlessly with an advanced multi-link system, continuously raising or lowering the pistons’ reach to transform compression ratio – offering both power and efficiency on demand. A high compression ratio gives greater efficiency, but in certain applications poses the risk of premature combustion (knocking). A low compression ratio allows for greater power and torque, and avoids knocking.
A senior spokesperson at Infiniti Oman said, “The VC-Turbo engine of Infiniti QX50 is competitively efficient, and delivers 268 hp (200 kW) and (380 Nm). Front-wheel drive models offer a 35 per cent improvement in fuel efficiency over the previous V6 gasoline QX50; all-wheel drive models offer a 30 per cent improvement.”
The engine is paired with a continuously variable transmission (CVT), for seamless power delivery. Its infinite number of gears perfectly matches the engine’s ability to transform. The Infiniti’s QX50's 2.0lt VC-Turbo engine also employs the world's first active engine mount vibration damping system, called an Active Torque Rod, to reduce engine noise even further.
The Infiniti QX50 is built on an all-new platform, featuring a front-engine, front-wheel drivebased layout. Engineered with flexibility of application in mind, the new platform sets new standards for refinement, rigidity and interior space in the compact premium SUV segment.
The platform’s layout allows for higher levels of packaging efficiency than before, resulting in the QX50’s ideal interior proportions for passengers and cargo.
The QX50 represents the first automotive use of SHF (Super High Formability) 980 MPa high-tensile steel, further strengthening the all-new platform. The high-tensile material can be molded into unprecedented shapes, saving weight and representing a torsional rigidity improvement of 23 per cent over the current QX50. This rigidity allows the car to resist flex and vibrations, as well as reduce the level of noise transmitted to the cabin.
Powerful elegance design
Remaining true to the design of the QX50 Concept and QX Sport Inspiration, the QX50’s aerodynamic exterior reinterprets Infiniti’s distinctive Powerful Elegance design language and signature design cues for the SUV segment. It combines a confident stance with intelligent packaging, while deep character lines highlight the influence of human artistry in the design process.
At 1,678mm in height, the QX50 stands out on the road. Its elevated driver position maximises visibility, for a clear view whether driving or parking. Aerodynamic efficiency is key to the QX50’s design – the drag coefficient is reduced by 6 per cent compared to the previous QX50.