The Effects of Injection Parameters on a Heavy-Duty Diesel Engine with TICS System

Shin, Buomsik; Lee, Jung-Hyun

doi:10.4271/981070

Cited by 4 publications

(1 citation statement)

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“…Regarding the fuel consumption, it was found out that some improvement might be achieved by increasing the injection pressure. More precisely, the fuel should be injected with low pressure at the initial phase of injection and with high pressure in the later phases . According to above requirements, a fuel injection system should have a wide pressure controllability.…”

Section: Introductionmentioning

confidence: 99%

Optimization of a Fuel Injection System for Diesel and Biodiesel Usage

Kegl

Pehan

2008

Energy Fuels

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This paper presents an optimization procedure of a fuel injection system of a bus diesel engine. Attention is focused on the differences resulting from using two different types of fuel: diesel and biodiesel. The proposed design procedure relies on the assumption that the atomization of fuel spray influences the diesel engine performance, fuel consumption, and harmful emission significantly. As a measure of spray atomization, the Sauter mean diameter is employed and introduced into the objective function. The design problem is formulated in the form of a multiobjective optimization problem, taking into account the ESC 13 mode test for diesel engines of commercial vehicles. The design variables of the injection system are related to the shape of the cam profile, to the nozzle geometry, and to the control parameters influencing the injection quantity and timing. The geometrical properties of the cam profile and the injection parameters are kept within acceptable limits by the imposed constraints. The results of optimization using diesel and biodiesel are compared to each other to show the influence of fuel type on final design and performance of the system.

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Section: Introductionmentioning

confidence: 99%

Optimization of a Fuel Injection System for Diesel and Biodiesel Usage

Kegl

Pehan

2008

Energy Fuels

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Injection System Design Optimization by Considering Fuel Spray Characteristics

Kegl

2004

Journal of Mechanical Design

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This paper considers optimal design of an electronic control diesel fuel injection system by considering fuel spray characteristics. The proposed design procedure relies on the assumption that the atomization of fuel spray influences the diesel engine performance, fuel consumption and harmful emission significantly. As a measure of spray atomization the Sauter mean diameter is employed. The design problem is formulated in a form of a multiobjective optimization problem taking into account the Japanese 13 Mode test for diesel engines of commercial vehicles. Two different transformations from the multiobjective to the standard form are proposed and the results are compared to each other. The design variables of the injection system are related to the shape of the cam profile, to the nozzle geometry and to the control parameters influencing the injection quantity and timing. The geometrical properties of the cam profile as well as some injection parameters are kept within acceptable limits by the imposed constraints.

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