Gasoline port fuel injection The costeective powertrain system is now even more energyecient clean economical      Advanced PFI PFI CO HC Gasoline port fuel injection PFI with Advanced PFI even more

Gasoline port fuel injection The costeective powertrain system is now even more energyecient clean economical Advanced PFI PFI CO HC Gasoline port fuel injection PFI with Advanced PFI even more - Description

Gasoline port fuel injection delivers a compelling combination of low costs simple technology and new innovations such as Advanced PFI The Bosch evolution of gasoline port fuel injection The twin injection measure further in creases this OVI e64256e ID: 26526 Download Pdf

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Gasoline port fuel injection The costeective powertrain system is now even more energyecient clean economical Advanced PFI PFI CO HC Gasoline port fuel injection PFI with Advanced PFI even more

Gasoline port fuel injection delivers a compelling combination of low costs simple technology and new innovations such as Advanced PFI The Bosch evolution of gasoline port fuel injection The twin injection measure further in creases this OVI e64256e

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Gasoline port fuel injection The costeective powertrain system is now even more energyecient clean economical Advanced PFI PFI CO HC Gasoline port fuel injection PFI with Advanced PFI even more




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Presentation on theme: "Gasoline port fuel injection The costeective powertrain system is now even more energyecient clean economical Advanced PFI PFI CO HC Gasoline port fuel injection PFI with Advanced PFI even more"— Presentation transcript:


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Gasoline port fuel injection The cost-effective powertrain system is now even more energy-efficient clean economical
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100 75 25 50 Advanced PFI PFI CO HC Gasoline port fuel injection (PFI): with Advanced PFI even more energy-efficient Gasoline port fuel injection Gasoline port fuel injection (PFI) is the world’s most widely used system for internal combustion engines and will remain so beyond 2020. Gasoline port fuel injection delivers a compelling combination of low costs, simple technology, and new innovations such as Advanced PFI. The Bosch

evolution of gasoline port fuel injection The twin injection measure further in creases this OVI effect, with two fuel in jectors per intake port providing better atomization, spray alignment, and mix ture vaporization as well as optimized targeting in the cylinder. The pressure increase of up to 6 bar when starting improves the effects of injection synchronous with induction by supporting mixture preparation and in creasing the maximum metered quantity of fuel. The use of PFI scavenging with downsiz ing engines allows the operating point of the exhaust gas turbocharger to be moved

to higher exhaust-gas throughputs at low engine speeds. During the valve overlap, fresh air without fuel is scav enged through the combustion chamber, thus increasing the engine output in the starting-off range. Broad portfolio With gasoline port fuel, the air and fuel are combined outside the combustion chamber in the intake manifold. From there the mixture flows through the in take tract and the intake valve to the combustion chamber. Bosch offers a comprehensive range of individual components for fuel supply, fuel injection, air management, ignition, engine management, and

exhaust gas treatment as well as perfectly tuned sys tem technology. Advanced PFI The innovative “Advanced PFI” package of measures consists of four individual measures that supplement and reinforce each other: Open Valve Injection (OVI) already kicks in at low (up to medium) engine speeds. In this respect, the fuel is injected synchronous with induction dur ing the intake phase into the incoming fresh air from the intake manifold. This reduces knocking tendency, while the compression ratio of the base engine is increased with lower part-load fuel con sumption. Twin injection for Advanced PFI

Complete systems and individual components Bosch develops and manufactures perfectly tuned system technology as well as individual components for vehicles with gasoline port fuel injection. We offer automakers wide-ranging expertise on the optimum integration of our components in the drive sys tem. With the innovative “Advanced PFI package of measures, we are able to further improve the drive system in terms of reducing fuel consump tion and CO₂ emissions as well as increasing engine output. Advantages of the low-pressure technology Gasoline port fuel injection offers major

advantages for engines with a specific en gine output of up to around 60 kW/liter and downsizing concepts of up to 25 per cent. Compared with high-pressure systems, the low-pressure system is less complex and also more affordable. Fewer individual components are re quired, since there is no high-pressure circuit, no high-pressure fuel injectors are used, and there are no multiple injec tions. The required control software and the operating strategy are thus much simpler. Thanks to its robust combustion process, gasoline port fuel injection also tolerates lower-quality fuel. The

system’s maintenance-friendly de sign also reduces the overhead for sys tem diagnostics. Less CO₂ with Advanced PFI Bosch is continually developing gasoline port fuel injection: the innovation “Ad vanced PFI” reduces gasoline consump tion and CO₂ emissions by 12 percent, while HC emissions are cut by over 20 per cent. The specific engine output can also be in creased using PFI scavenging. Potential for emissions reduction with Advanced PFI
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Further information can be found at www.bosch-pfi.com Automotive competence from a single source: Bosch – your

partner for engines with gasoline port fuel injection Comprehensive portfolio and expertise Bosch is a full-range supplier for gasoline port fuel injection with individual compo nents and system technology for passenger-car drives and two-wheeled vehicle en gines. Our comprehensive portfolio ranges from high-end designs through to specific variants for low-price vehicles. This broad portfolio and our expertise generate valu able synergies as part of collaboration with manufacturers. System and network competence We have an excellent command of the technical relationships and dependencies

within the complete system, thus ensuring maximum system benefits in terms of reducing fuel consumption, CO₂, and HC, as well as with specific engine output. Innovation driver and technology leader With the “Advanced PFI” package of measures, we have further developed gasoline port fuel injection technology, thus underscoring our position as innovation driver and technology leader in the industry. Ensuring quality and reliability Our individual components and complete systems offer a compelling combination of technical precision and high service life. Automakers

worldwide often single out Bosch’s high reliability and quality by honoring the company with quality awards. Global presence Thanks to our global presence, we are familiar with the specific requirements of each market and our customers locally, enabling us to meet these specific regional require ments. In Brazil, for instance, with our Flex Fuel systems. Long-term partnership Our customers know and value us as a reliable partner who accompanies the complete vehicle lifecycle from development to series production, through to maintenance and spare-parts supply on an end-to-end basis.


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Robert Bosch GmbH Gasoline Systems Postfach 30 02 40 70442 Stuttgart Germany www.bosch-pfi.com Printed in Germany 2 920 00P 124-C/CCA-201307-En