The effect of inner catalyst application on diesel engine performance

• Autorzy: Janicka A. , Sroka Z. , Walkowiak W.
• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of the initial researches on platinum-rhodium inner catalyst application in one-cylinder compression-ignition engine (SB 3.1 type). According to recent researches [2-6] the active factor in an engine combustion space impacts on a combustion process. It is suspected that a catalyst i.e. a precious metal, affects the fuel combustion process by catalyzing the fuel-air combustion reaction (prior-combustion reactions what is correlated with shortening of combustion delay period).The researches was carried out in Division of Motor Vehicles and Internal Combustion Engines at Wroclaw University of Technology. The catalyst was put onto the engine valves surface. As a catalyst support a plasma-sprayed zirconium ceramic was used. The researches proved that the platinum-rhodium active factor on zirconium thermal barrier coating (TBC) placed into combustion chamber (inner catalyst) effects on the diesel engine performance. The impact of the inner catalyst seems to be advantageous for ignition delay. The active ceramic on the engine valve surface caused increase of in-cylinder maximum pressure and temperature values.

Słowa kluczowe

EN

internal combustion engine; active coating; catalytic fuel ignition; pressure diagram

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2010
• Tom: Vol. 5, no 1
• Strony: 59--68
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Janicka A.

autor

Sroka Z.

autor

Walkowiak W.

• Wrocław University of Technology wyb. Wyspiańskiego 27 50-370 Wroclaw tel./fax. [phone],

Bibliografia

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• [5] Walkowiak W., Szynalski K. :The effectiveness of starting heater plug with active ceramic coating; Journal ok Kones; Powertrain and Transport, vol.13, No 3, Warsaw 2006
• [6] Walkowiak W. Janicka A. Sroka J.Z.: Obniżanie toksyczności spalin silnika o zapłonie samoczynnym przez zastosowanie wewnętrznego katalizatora spalania. Raport Politechniki Wrocławskiej Seria:Spr.47/2007
• [7] Girolamo G.D., Blasi C., Schioppa M., Tapfer L.: Structure and thermal properties of heat treated plasma sprayed ceria–yttria co-stabilized zirconia coatings, Ceramics International 36 (2010) 961–968