Sandvik technology facilitating lighter, high-pressure GDI systems

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Pressurfect is a new range of GDI tubing designed to handle higher operating pressures while delivering exceptional weight savings of up to 40%. The range offers substantial design and operational benefits, with the ability to handle operational pressures over 350 bar/35MPa.

“The development and introduction of Pressurfect means highly efficient gasoline direct injection systems can advance still further continuing the development by manufacturers of high efficiency, low emission vehicles,” explains Jari Ponsiluoma, Sandvik global product manager for Pressurfect.

The drive to deliver lower emissions is being dictated by tougher regulations in Europe, as well as in the USA and China. In particular, China has recently specified GDI as one of the powertrain technologies of the future, with the government stating its intention to accelerate the development of direct injection fuel systems. By 2015, China estimates that 30-40% of new production cars will use GDI systems to reduce fuel consumption.

Designed for stronger, safer handling of fuel pressures with no pitting or cracking, standard Pressurfect is an austenitic chromium nickel steel designed for fuel rails and fuel lines.

Offering lightweight duplex stainless steel tubing with superior mechanical strength Pressurfect XP enables the reduction of tube wall thicknesses by up to 40%, with the ability to handle the same high operating pressures as thicker tubes.

Both Sandvik materials offer higher corrosion resistance and the ability to handle the increasing operational pressure levels being demanded for GDI fuel systems. Optimized for safe, reliable operation, as well as drilling and turning, when used in fuel lines they are easier to bend and shape as required.

“Selecting the right material to meet specific application requirements needs careful consideration. To ensure we deliver the best solution for a given application, we work closely with manufacturers at the outset of the process,” adds Ponsiluoma.

Sandvik will be showcasing Pressurfect at Engine Expo 2015, Messe Stuttgart, in Germany.

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About Author


Dean has been with UKi Media & Events for over a decade, having previously cut his journalistic teeth writing and editing for various automotive and engineering titles. He combines extensive knowledge of all things automotive with a passion for driving, and experience testing countless new vehicles, engines and technologies around the world. As well as his role as editor-in-chief across a range of UKi's media titles, he is also co-chair of the judging panel of the International Engine + Powertrain of the Year Awards.

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