Measurement of low-speed pre-ignition for a contemporary low-volume spark-ignition engine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F20%3A00007662" target="_blank" >RIV/46747885:24210/20:00007662 - isvavai.cz</a>

Výsledek na webu

<a href="https://paginas.fe.up.pt/~irf/Proceedings_IRF2020/data/Downloads.htm" target="_blank" >https://paginas.fe.up.pt/~irf/Proceedings_IRF2020/data/Downloads.htm</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of low-speed pre-ignition for a contemporary low-volume spark-ignition engine

Popis výsledku v původním jazyce

This work deals with measurement of low-speed pre-ignition (LSPI) for contemporary low-volume spark-ignition engine (SI engine) on a dyno test station. In our case for SI engine 1.2 l, 55 kW. The LSPI/super knock is an abnormal combustion event in which the fuel-air mixture ignites before intended, causing excessive pressures inside the engines cylinders. This phenomenon appeared with a “downsizing trend” of cylinder volume of piston combustion engine (reducing the engine displacement while maintaining or increasing the performance of the internal combustion engine- this is achieved mainly due to supercharged). LSPI occurs especially in a turbocharged direct-injection spark-ignition engine, but in our test it is a non-turbocharged engine where LSPI appeared. In mild cases, this can cause engine noise, but when severe enough, LSPI like knock can cause engine damage. There are several factors that contribute to LSPI, of which lubricating oil has been observed to be one.

Název v anglickém jazyce

Measurement of low-speed pre-ignition for a contemporary low-volume spark-ignition engine

Popis výsledku anglicky

This work deals with measurement of low-speed pre-ignition (LSPI) for contemporary low-volume spark-ignition engine (SI engine) on a dyno test station. In our case for SI engine 1.2 l, 55 kW. The LSPI/super knock is an abnormal combustion event in which the fuel-air mixture ignites before intended, causing excessive pressures inside the engines cylinders. This phenomenon appeared with a “downsizing trend” of cylinder volume of piston combustion engine (reducing the engine displacement while maintaining or increasing the performance of the internal combustion engine- this is achieved mainly due to supercharged). LSPI occurs especially in a turbocharged direct-injection spark-ignition engine, but in our test it is a non-turbocharged engine where LSPI appeared. In mild cases, this can cause engine noise, but when severe enough, LSPI like knock can cause engine damage. There are several factors that contribute to LSPI, of which lubricating oil has been observed to be one.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

7th International Conference INTEGRITY-RELIABILITY-FAILURE In Automotive, Locomotive, Aerospace, Civil Engineering and Biomechanics

ISBN

978-989-54756-1-2

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

213-220

Název nakladatele

INEGI-Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial

Místo vydání

Porto

Místo konání akce

Funchal

Datum konání akce

1. 1. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000731040500045