Volvo S90 2016 we met yesterday is a great step forward for Volvo. After the XC90, this is her second product with which the brand is facing a new and prosperous stage. The Volvo S90 2016 shares many elements with the Volvo XC90, as the platform, the engines Drive-E 2.0-liter four-cylinder engine or the technology. But Volvo has taken advantage of the launch of its new saloon to present an improvement in your diesel engine more powerful.
The new Volvo S90 will be offered with two diesel engines, both 2.0-litres and four cylinders. The D4 delivers 190 horsepower, while the D5 lift the figure up to 235 HP, 10 more than that offered by the Volvo XC90 D5. The main secret is called PowerPulse, a system that improves the response of the engine acting on the turbo. Conozcámoslo in depth.
Accumulator system air PowerPulse premiered by the S90
always the main problem of the turbo engines has been in its response. While in a naturally aspirated engine is easy to get a power delivery that is instantaneous and linear in the turbo engines is more complex and requires resort to various technologies, such as turbochargers of variable geometry, among others. PowerPulse is a new technology developed by Volvo that contributes to that end, the offer a response more instant, reducing the lag or turbo lag.
Part of the intake air is redirected by a small compressor to a air tank two liters of capacity. When the driver demands a lot of power on the outputs or when running at low load, this air is released by a solenoid valve in the exhaust manifold causing the turbine of the turbo starts to move, thus obtaining an instant response.
The system PowerPulse ensures that the air tank is always full and therefore ready to be used. This technology will only be available, at least for the moment, in the Volvo S90 D5 235 HP, which is associated with automatic change of eight-speed and awd.
Source – Volvo
From 38.700 euro