Analysis of Scavenged Pre-Chamber for Light Duty Truck Gas Engine

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00314574" target="_blank" >RIV/68407700:21220/17:00314574 - isvavai.cz</a>

Result on the web

<a href="http://papers.sae.org/2017-24-0095/" target="_blank" >http://papers.sae.org/2017-24-0095/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4271/2017-24-0095" target="_blank" >10.4271/2017-24-0095</a>

Result language

angličtina

Original language name

Analysis of Scavenged Pre-Chamber for Light Duty Truck Gas Engine

Original language description

An ongoing research and development activities on the scavenged pre-chamber ignition system for an automotive natural gas fueled engine is presented in this paper. The experimental works have been performed in engine laboratory at steady state conditions on a gas engine with 102 mm bore and 120 mm stroke, converted to a single cylinder engine. The in-house designed scavenged pre-chamber is equipped with a spark plug, fuel supply and a miniature pressure sensor for detailed combustion diagnostics. The engine was operated at constant speed, fully open throttle valve and four different fueling modes with or without spark discharge. A partly motored mode allowed direct evaluation of the pre-chamber heat release. The experimental data acquired in this research served as a validation data for the numerical simulations. The performed tests of prototypes and calculations have recently been expanded to include 3-D flow calculations in the Ansys Fluent software. The work presents results from the coupled 1-D and 3-D numerical simulation of the flow in the pre-chamber. The main goal of the computational fluid dynamic (CFD) simulation was to describe the fluid dynamics inside the pre-chamber (without combustion), mixture distribution and assessment of the scavenging quality. The pre-chamber interior volume is analyzed in detail for the operating condition. The outputs of the simulation serve as a base for optimization of the pre-chamber design. It is also a valuable input for the optimal control setting to improve overall functionality of the scavenged pre-chamber. The simulation results were compared with the experiments.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

SAE Technical Paper Series - ICE 2017

ISBN

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ISSN

0148-7191

e-ISSN

0148-7191

Number of pages

12

Pages from-to

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Publisher name

Society of Automotive Engineers

Place of publication

Warrendale, PA

Event location

Napoli

Event date

Sep 10, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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