Combustion and Exhaust Emission of an Engine Using the Porsche-Stratified-Charge-Chamber-System

Gruden, Dušan

doi:10.4271/750888

Cited by 8 publications

(3 citation statements)

References 2 publications

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“…Despite the benefits of lean combustion, lower burn velocities result in higher cyclic variability, requiring a greater source of energy to ignite the mixture [16]. Among other technologies used to improve the amount of ignition energy, the use of prechamber ignition system (PCIS) is already well stablished for lean combustion [17][18][19] and has already been used by the automotive industry for commercial applications [20][21][22][23][24][25]. However, only few studies have published results of PCIS in vehicular conditions.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a stratified prechamber ignition concept for vehicular applications in real world and standardized driving cycles

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Evaluation of a stratified prechamber ignition concept for vehicular applications in real world and standardized driving cycles

et al. 2019

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“…The invention of the Honda's CVCC engine led to another manufacturers, such as General Motors [67][68][69][70], Nissan [71], Porsche [72,73] or Ford [74,75], to explore the potential of the stratified charge using a pre-chamber application engine during this decade. The reduced emissions and the improvement in fuel economy achieved by the CVCC engine renewed the interest in these kind of applications [69,76,77].…”

Section: Figure 213mentioning

confidence: 99%

“…By the end of the 70's and the early beginnings of the 80's, Lazslo Hideg and Robert P. Ernest developed and patented a pre-chamber application for rotative engines [78][79][80], while Aladar O. Simko developed and patented a new assembly to control the fuel in a dual chamber compression ignition engine [81,82]. Porsche (b) [72], Ford (c) [74] and Nissan (d) [71].…”

Section: Figure 213mentioning

confidence: 99%

Implementation and Analysis of the Pre-Chamber Ignition Concept in a SI Engine for Passenger Car Applications

Martínez Hernándiz

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The global greenhouse gas emissions increase since the start of the Industrial Revolution has become a serious hazard to human life. In addition to power generation and industry, transportation, with the rise in the total vehicle number in the last decades, is one of the main contributors to this exponential increase of global warming-causing gases. In fact, cities such as Barcelona or Madrid, among many others, are imposing traffic restrictions to mitigate this situation. However, mankind is still on time to reverse this negative tendency and fix the environmental issue for the upcoming generations.The main goal of the present Thesis focuses on the study, implementation and analysis of the passive pre-chamber ignition concept in a near-future light-duty passenger car application. To be more specific, the investigation addresses the physical phenomena involving the combustion process when pre-chamber ignition system is used in a spark-ignition engine. Then, some strategies to improve thermal efficiency while employing this concept are applied. Finally, with all the knowledge gathered, basic guidelines for a pre-chamber pre-design are presented.The first approach to the concept consists of its direct implementation in the engine, obtaining experimental results in three different operating conditions in terms of engine load and speed. Furthermore, different prechamber geometries are also evaluated. Although its direct implementation is relatively straightforward by exchanging the spark plug, understanding some of the relevant phenomena related to the combustion process, such as gas exchange or jet-tip penetration, is extremely difficult without the support of computational tools. This is the main reason supporting the use of 1D numerical tools in the present Thesis, since with proper modeling based on experimental data, further knowledge can be obtained in those situations where experimental evaluations are not feasible. These 1D tools have the benefits of their low computational cost and their ability to provide reasonably good results in a short period of time. ix xv[8] F. D. Sabatino, P. J. Martinez-Hernandiz, R. N. Rosa, and I. Ekoto. "Investigation of the effects of passive pre-chamber nozzle pattern and ignition system on engine performance and emissions". International Journal of Engine Research 0 (0), 2022.

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Automotive Direct-Injection Stratified-Charge Engine Development in the 1970-1980’s

Groff¹

2016

SAE Technical Paper Series

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Combustion and Exhaust Emission of an Engine Using the Porsche-Stratified-Charge-Chamber-System

Cited by 8 publications

References 2 publications

Evaluation of a stratified prechamber ignition concept for vehicular applications in real world and standardized driving cycles

Evaluation of a stratified prechamber ignition concept for vehicular applications in real world and standardized driving cycles

Implementation and Analysis of the Pre-Chamber Ignition Concept in a SI Engine for Passenger Car Applications

Automotive Direct-Injection Stratified-Charge Engine Development in the 1970-1980’s

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