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Browsing by Subject "GDI"

Now showing items 1-9 of 9

A study on the relationship between internal nozzle geometry and injected mass distribution of eight ECN Spray G nozzles

Matusik, Katarzyna; Duke, Daniel; Sovis, Nicholas; Swantek, Andrew; Powell, Christopher; Payri, Raul; Vaquerizo, Daniel; Giraldo Valderrama, Jhoan Sebastián; Kastengren, Alan (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] Gasoline direct injection (GDI) nozzles are manufactured to meet geometric specifications with length scales on the order of a few hundred microns. The machining tolerances of these nominal dimensions are not always ...
Analysis of PDA measurements in double injection GDI sprays

Araneo, Lucio; Dondè, Robert; Postrioti, Lucio; Cavicchi, Andrea (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] A N-heptane spray from a GDI multi-hole injector operated in ambient air at fixed conditions and with double injection commands is studied with different experimental techniques to better understand the spray ...
Desarrollo de un Modelo de Impacto del Combustible en las Paredes de la Cámara de Combustión para Motores de Inyección Directa de Gasolina

Cárdenas Real, Jorge (Universitat Politècnica de València, 2022-07-18)

[ES] Con el fin de cumplir con la normativa medioambiental vigente y conseguir una mayor pureza en el aire que respiramos, las emisiones de los motores de gasolina de inyección directa (al igual que para el resto de motores) ...
Diseño y calibración de un medidor de tasa de inyección aguas arriba para inyectores GDI utilizando medidas instantáneas de presión

Fung Gásperi, César Augusto (Universitat Politècnica de València, 2020-10-27)

[ES] El proyecto realizado se enfoca en el desarrollo de un sistema de medida de tasa de inyección o tasímetro para los inyectores GDI (gasoline direct injection), o inyectores con funcionamiento similar, que sea aguas ...
Evaluation of GDI spray structures under flash boiling and strong collapse conditions with diverse fuels

Payri, Raul; Marti-Aldaravi, Pedro; Mendoza Alvarez, Victor; Bautista, Abian (Elsevier, 2023-11-05)

[EN] GDI (Gasoline Direct Injection) sprays are a matter of continuous research due to their potential for higher thermal efficiency and power output. Injections in GDI engines tend to happen at relatively high temperatures, ...
Flashboiling atomization in nozzles for GDI engines

Bornschlegel, Sebastian; Conrad, Chris; Eichhorn, Lisa; Wensing, Michael (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] Flashboiling denotes the phenomenon of rapid evaporation and atomization at nozzles, which occurs when fluids are injected into ambient pressure below their own vapor pressure. It happens in gasoline direct injection ...
Imaging of gasoline-like sprays with planar laser-induced exciplex fluorescence using a stereoscopic imaging system

Andersson, Mats; Yamaguchi, Akichika; Wang, Hua (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] The role of the fuel injection systems in direct injected gasoline engines is to achieve a suitable fuel vapor distribution, homogeneous or with some degree of stratification, while avoiding unwanted effects such as ...
Modelado cinético de la oxidación del hollín usando TGA

Tortajada Pastor, Elisa (Universitat Politècnica de València, 2020-10-23)

[ES] Actualmente los motores de combustión interna, principalmente los de inyección directa de gasolina (GDI) y diésel presentan como inconveniente las emisiones de partículas de hollín, las cuales consisten en partículas ...
Study of the hydraulic characteristics of two injectors fed with different fuels in a GDI system

Payri, Raul; Gimeno, Jaime; Marti-Aldaravi, Pedro; Mendoza Alvarez, Victor (Elsevier, 2022-06-01)

[EN] In the latter years, the Gasoline Direct Injection systems (GDI) have been studied with the aim of providing a solution to the particulate matter emission issue. It has been proved that emission levels are reduced ...