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Visualization of Pre-Chamber Combustion and Main Chamber Jets with a Narrow Throat Pre-Chamber
SAE International Journal of Advances and Current Practices in Mobility, 2022<div class="section abstract"><div class="htmlview paragraph">Pre-chamber combustion (PCC) has re-emerged in recent last years as a potential solution to help to decarbonize the transport sector with its improved engine efficiency as well as providing lower emissions.
Manuel Echeverri Marquez +6 more
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SAE International Journal of Engines, 2023
<div>Pre-chamber turbulent jet ignition (TJI) is a method of generating distributed ignition sites through multiple high-speed turbulent jets in order to achieve an enhanced burn rate in the engine cylinder when compared to conventional spark plug ignition.
Tianxiao Yu +3 more
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<div>Pre-chamber turbulent jet ignition (TJI) is a method of generating distributed ignition sites through multiple high-speed turbulent jets in order to achieve an enhanced burn rate in the engine cylinder when compared to conventional spark plug ignition.
Tianxiao Yu +3 more
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ASME 2023 ICE Forward Conference, 2023
Abstract To understand key physical aspects of volume in narrow-throat pre-chambers, computational fluid dynamics simulations were performed using CONVERGE™. A major advantage of a narrow-throat feature is to allow for drop-in replacement of a diesel injector, hence facilitating technology deployment.
Mickael Silva +6 more
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Abstract To understand key physical aspects of volume in narrow-throat pre-chambers, computational fluid dynamics simulations were performed using CONVERGE™. A major advantage of a narrow-throat feature is to allow for drop-in replacement of a diesel injector, hence facilitating technology deployment.
Mickael Silva +6 more
openaire +1 more source
SAE Technical Paper Series, 2023
<div class="section abstract"><div class="htmlview paragraph">Lean combustion has been well known to be an effective method to improve the thermal efficiency. However, leaner mixture is prone to cause the unstable combustion and poorer unburned hydrocarbon (UTHC) emissions. Pre-chamber turbulent jet combustion has been proved to enhance the
Fuchao SHEN +6 more
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<div class="section abstract"><div class="htmlview paragraph">Lean combustion has been well known to be an effective method to improve the thermal efficiency. However, leaner mixture is prone to cause the unstable combustion and poorer unburned hydrocarbon (UTHC) emissions. Pre-chamber turbulent jet combustion has been proved to enhance the
Fuchao SHEN +6 more
openaire +1 more source
International Journal of Engine Research, 2022
Dual Mode, Turbulent Jet Ignition (DM-TJI) is an engine combustion technology that incorporates an auxiliary air supply apart from the auxiliary fuel injection inside the pre-chamber of a divided chamber ignition concept. Compared to other active (auxiliary fueled) and passive pre-chamber ignition technologies, the DM-TJI system has the distinct ...
Cyrus Ashok Arupratan Atis +3 more
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Dual Mode, Turbulent Jet Ignition (DM-TJI) is an engine combustion technology that incorporates an auxiliary air supply apart from the auxiliary fuel injection inside the pre-chamber of a divided chamber ignition concept. Compared to other active (auxiliary fueled) and passive pre-chamber ignition technologies, the DM-TJI system has the distinct ...
Cyrus Ashok Arupratan Atis +3 more
openaire +1 more source
SAE Technical Paper Series, 2023
<div class="section abstract"><div class="htmlview paragraph">This study focused on a lean-burn regime using a pre-chamber for improving the efficiency of internal combustion engines. Combustion images were visualized using a two-stroke, single-cylinder, optically accessible engine fitted with a cylindrical pre-chamber. The L/D ratio of the
Takaaki Chiba +5 more
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<div class="section abstract"><div class="htmlview paragraph">This study focused on a lean-burn regime using a pre-chamber for improving the efficiency of internal combustion engines. Combustion images were visualized using a two-stroke, single-cylinder, optically accessible engine fitted with a cylindrical pre-chamber. The L/D ratio of the
Takaaki Chiba +5 more
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Combustion Knock in Pre-Chamber Diesels
SAE Technical Paper Series, 1970<div class="htmlview paragraph">A study of the characteristics of combustion knock in a 1 cyl prechamber diesel engine is reported here. The intensity of the knock showed pronounced cyclic dispersion and an electronic counting technique was developed to measure the intensity distribution.
R. Burt, K. A. Troth
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SAE Technical Paper Series, 2015
<div class="section abstract"><div class="htmlview paragraph">It has previously been shown by the authors that the pre-chamber ignition technique operating with fuel-rich pre-chamber combustion strategy is a very effective means of extending the lean limit of combustion with excess air in heavy duty natural gas engines in order to improve ...
Ashish Shah +2 more
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<div class="section abstract"><div class="htmlview paragraph">It has previously been shown by the authors that the pre-chamber ignition technique operating with fuel-rich pre-chamber combustion strategy is a very effective means of extending the lean limit of combustion with excess air in heavy duty natural gas engines in order to improve ...
Ashish Shah +2 more
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Knock metrics experimental evaluation for pre-chamber SI engines
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2023The present study analyzes the occurrence of pressure oscillations in engines operating with pre-chambers at stoichiometric conditions, aiming to assess whether the increase in the amplitude of pressure oscillations detected by means of cylinder pressure measurements is related to knock, or it is a result of mass transfer from the pre-chamber to the ...
Nathália Duarte Souza Alvarenga Santos +4 more
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