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Advances in Gasoline Direct Injection Fuel Pump Technologies
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2018 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The introduction of gasoline direct injection (GDI) fuel systems has created numerous technical and manufacturing challenges for fuel system engineers. Direct injection systems run at significantly higher pressures compared to port fuel injection, leading to increased stresses on fuel system components. The demands of GDI pump applications have led to significant innovation opportunities in areas such as high-pressure sealing, control of pumping noise and management of increased loads on pumping elements and pump structure. Shifts in the methodologies for the design of components and materials used, as well as changes to the validation and manufacturing processes, have been required to develop fuel systems for direct injection engines.
New technologies for the assembly and joining of materials have also been important to further optimize designs for size, weight, and cost. Recent advances in materials and forming technologies have opened design possibilities to integrate pump sub-systems for improved function and packaging. Of these technologies, laser welding, metal injection molding, and precision stamping are key aids in creating robust, cost-effective and low-weight solutions.
Additionally, the control of debris generation and migration during all stages of the value stream is a critical enabler of pump performance consistency and quality. Part transport, handling and cleaning, audit and analysis considerations must be fully integrated into process layout and material flows to achieve target requirements. Control of environmental air quality and airborne aerosols also plays a critical role in assembly quality.
In this paper, design strategies, production methodologies and key lessons learned are reviewed for current and upcoming Stanadyne GDI pump technology.
|Journal Article||FAME Blended Diesel Fuel Impacts on Engine/Vehicle Systems|
|Ground Vehicle Standard||Diesel Fuel Injection Pump - Validation of Calibrating Nozzle Holder Assemblies|
|Technical Paper||The Gum Stability of Gasolines|
CitationCavanagh, M., Pellini, R., and Pinson, J., "Advances in Gasoline Direct Injection Fuel Pump Technologies," SAE Technical Paper 2018-01-0367, 2018, https://doi.org/10.4271/2018-01-0367.
Data Sets - Support Documents
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- Majewski, W.A., “Gasoline Particulate Filters,” DieselNet Technology Guide, 2017.
- Lee, J., Liu, H., Noh, Y., Shin, H. et al., “A Model Based Design Analysis for a Gasoline Direct Injection Pump,” SAE Technical Paper 2015-01-1267, 2015, doi:10.4271/2015-01-1267.
- Lucas, R., “Load Ring Mounting of Pumping Plunger Sleeve,” US 8,579,611 B2, 12 Nov 2013.
- Aritomi, S., Kuniyoshi, H., Tokuo, K., Usui, S. et al., “Volumetric Efficiency Improvement of High-Pressure Fuel Pump for Gasoline Direct Injection Engine,” SAE Technical Paper 2015-01-1273, 2015, doi:10.4271/2015-01-1273.
- Lucas, R., “Single Piston Pump with Dual Return Springs,” US 8,495,987 B2, 30 July 2013.
- Spakowski, J., Spegar, T., and Mancini, L., “Development of a Low-Noise High Pressure Fuel Pump for GDI Engine Applications,” SAE Technical Paper 2013-01-0253, 2013, doi:10.4271/2013-01-0253.