BorgWarner Two-stage Turbocharger to Drive JLR Diesel Engines

BorgWarner Two-stage Turbocharger to Drive JLR Diesel Engines

BorgWarner has announced that its regulated two-stage turbocharging technology will now power the new 2.0 l, I4 diesel engine with 240 hp from Jaguar Land Rover. This technology was initially available for the Range Rover Sport and new Land Rover Discovery boasting the new engine. This turbocharging technology features a water-cooled compressor housing and offers improved low-end torque and enhances engine performance and efficiency while contributing to emissions reduction.

The R2S turbocharging solution from BorgWarner consists of two series-connected turbochargers of different sizes to deliver high boost pressures and smooth power over the entire engine speed range. One turbocharger features the company’s latest variable turbine geometry (VTG) technology for the high-pressure stage combined with a larger B03 water-cooled turbocharger optimised for low-pressure exhaust gas recirculation. Controlled by an electric actuator, the VTG turbocharger responds quickly at low engine speeds, resulting in a rapid rise in boost pressure for nearly instant acceleration.

As engine speed increases, a bypass gradually redirects the exhaust gas flow towards the larger, low-pressure turbocharger until it takes over the workload completely to maintain fluid power delivery and provide excellent efficiency. This technology allows quick adaptation to changes in the engine’s operating conditions, thereby facilitating fast response times and contributing to significantly reduced emissions.

Commenting on the development, Frédéric Lissalde, President and General Manager, BorgWarner Turbo Systems, said, “Our long-standing expertise in the field of advanced turbocharging technologies for combustion and hybrid propulsion systems enables BorgWarner to supply Jaguar Land Rover the leading R2S turbocharging system to help them achieve fuel efficiency and performance targets for their new 2.0 l diesel engine. We are pleased to expand our successful business relationship with Jaguar Land Rover by working together closely and providing a wide range of our turbocharging technologies for several other engines from Jaguar Land Rover to improve the fun-to-drive experience for their customers even more.”