Results 1 to 10 of about 209,383 (273)

Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine

Advances in Mechanical Engineering, 2021
Pre-chamber jet ignition is a promising way to improve fuel consumption of gasoline engine. A small volume passive pre-chamber was tested at a 1.5L turbocharged GDI engine.
Wei Duan, Zhaoming Huang, Hong Chen, Ping Tang, Li Wang, Weiguo Chen   +5 more
doaj   +2 more sources

Nozzle Design of Plug-and-Play Passive Pre-Chamber Ignition Systems for Natural Gas Engines

Applied Sciences, 2023
To evaluate the significance of the geometrical parameters of a passive pre-chamber on engine performance, this study investigated the design of a plug-and-play passive pre-chamber in a 15 L heavy-duty natural gas engine.
Wei Li, Junfang Ma, Tao Zhu, Haiqiao Wei, Jiaying Pan   +4 more
doaj   +2 more sources

Custom-Designed Pre-Chamber: Investigating the Effects on Small SI Engine in Active and Passive Modes

Energies, 2023
This work shows the results of an experimental campaign carried out in two spark ignition engines, a small optical research engine and its commercial counterpart, using a turbulent ignition system (pre-chamber) specifically designed for small engines ...
Paolo Sementa, Cinzia Tornatore, Francesco Catapano, Silvana Di Iorio, Bianca Maria Vaglieco   +4 more
doaj   +3 more sources

Analysis of Performance of Passive Pre-Chamber on a Lean-Burn Natural Gas Engine under Low Load

Journal of Marine Science and Engineering, 2023
Stable ultra-lean combustion is an effective way for natural gas engines to reduce NOx emissions, but it also has higher requirements for ignition stability.
Changhao Lu, Enzhe Song, Congcong Xu, Zuo Ni, Xiyu Yang, Quan Dong   +5 more
doaj   +2 more sources

Recurrent Syncope in Patients With Reflex Syncope Treated With Dual‐Chamber Pacemakers: Short‐Term Associated Factors—A Single‐Center Retrospective Study [PDF]

Journal of Arrhythmia
Background Dual‐chamber pacemakers equipped with anti‐reflex syncope algorithms are an established therapeutic option for preventing recurrent syncope in selected patients with reflex syncope. However, their efficacy in patients under 40 years old and in
Thai Duy Vo, Ngoc Dung Kieu, Le Uyen Phuong Tran, Cao Dat Tran, Tri Thuc Nguyen, Thi Thanh Binh Dao   +5 more
doaj   +2 more sources

CFD-based methodology for the characterization of the combustion process of a passive pre-chamber gasoline engine

Transportation Engineering, 2023
Pre-chamber (PC) ignition systems, enabling Turbulent Jet Ignition (TJI) combustion, represent a promising technology to extend the lean limit of Spark Ignition Internal Combustion Engines.
A. Piano, A. Scalambro, F. Millo, F. Catapano, P. Sementa, S. Di Iorio, A. Bianco   +6 more
doaj   +4 more sources

Numerical Investigation on the Performance of a 4-Stroke Engine with Different Passive Pre-Chamber Geometries Using a Detailed Chemistry Solver

Energies, 2022
Pre-chamber turbulent jet ignition represents one of the most promising techniques to improve spark ignition engines efficiency and reduce pollutant emissions.
Simone Bigalli, Iacopo Catalani, Francesco Balduzzi, Nicola Matteazzi, Lorenzo Agostinelli, Michele De Luca, Giovanni Ferrara   +6 more
doaj   +1 more source

Sensitivity of soil hydrogen uptake to natural and managed moisture dynamics in a semiarid urban ecosystem [PDF]

PeerJ, 2022
The North American Monsoon season (June–September) in the Sonoran Desert brings thunderstorms and heavy rainfall. These rains bring cooler temperature and account for roughly half of the annual precipitation making them important for biogeochemical ...
Vanessa Buzzard, Dana Thorne, Juliana Gil-Loaiza, Alejandro Cueva, Laura K. Meredith   +4 more
doaj   +2 more sources

Model Experimental Study on De-Icing Method of Bridge Pylon Beam Based on Electric Heating

Applied Sciences, 2023
The icing of bridge pylon crossbeams is a problem that could pose a serious threat to traffic during a cold winter. However, little research has been carried out on the problem and few corresponding countermeasures have been provided.
Zhiyong Yang, Tian Bao, Zhi Chen, Henglin Xiao, Xinlong Zhou, Jiacheng Zhang, Yin Liu   +6 more
doaj   +1 more source

Numerical analysis of the passive pre-chamber ignition concept for light duty applications

Applied Thermal Engineering, 2022
[EN] The use of advanced ignition concepts and enhanced combustion strategies is being widely studied for modern engine applications. In this framework, the passive pre-chamber ignition system is gaining popularity for its mechanical simplicity. However, in order to implement this ignition system in passenger car vehicles, the concept must be able to ...
R. Novella, J. Gomez-Soriano, I. Barbery, C. Libert   +3 more
openaire   +2 more sources