Experimental comparison of efficiency and emission levels of four-cylinder lean-burn passenger car-sized CNG engines with different ignition concepts

• Autorzy: Soltic Patric , Hilfiker Thomas , Hutter Richard , Hänggi Severin

Identyfikatory

DOI

10.19206/CE-2019-104

• Języki publikacji: EN

Abstrakty

EN

Today’s passenger car CNG engines are based on petrol engines which typically have restrictions preventing the exploitation of the full potential of methane based fuels, especially if they have to be operated also on petrol as a second fuel. Additionally, the use of threeway-catalysis limits the engine operation to λ = 1. Here, we present the efficiency potential and the raw emission characteristics for a dedicated four cylinder passenger car CNG engine without sticking to the usual combustion peak pressure and λ limitations. Lean combustion reduces the knocking tendency but, because of the higher pressure levels, increases the ignition energy demand. Therefore, different ignition systems (spark plug, prechamber, Diesel pilot) have been used.

Słowa kluczowe

EN

dual-fuel; diesel pilot; spark ignition; prechamber

PL

silnik dwupaliwowy; silnik Diesla; zapłon iskrowy; komora wstępna

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2019
• Tom: R. 58, nr 1
• Strony: 27--35
• Opis fizyczny: Bibliogr. 18 poz., il.

Twórcy

autor

Soltic Patric

• ETH, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf (Switzerland)

autor

Hilfiker Thomas

• Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf (Switzerland)

autor

Hutter Richard

• ETH, Swiss Federal Institute of Technology, Zürich (Switzerland)

autor

Hänggi Severin

• Swiss Federal Institute of Technology, Zürich (Switzerland)

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).