An investigations of varied cross section nozzle of injector of Diesel engines for performance improving and toxic exhaust gases emission reducing

• Autorzy: Sowa K. , Zabłocki M. , Jankowski A. , Sandel A.

Warianty tytułu

PL

Badania wtryskiwacza o zmiennym przekroju dyszy do silników Diesla w celu poprawy parametrów pracy silnika oraz zmniejszenia poziomu emisji toksycznych składników spalin

• Języki publikacji: EN

Abstrakty

EN

The paper concerns a new idea of fuel injector for Diesel engines on base of invention applied by M. Zabłocki and J. Szymański. Some results of preliminary operating parameters research are presented in the paper. This investigation was conducted on the research Diesel engine equipped with varied cross section nozzle injector. The new-made research injector has needle, which executes rotational reciprocal motion. The new worked-out injector has outflow holes with flow section that undergoes a change during the injection process, which enables to decrease of diameter of fuel droplets. The measurements were performed at varied rpm (from 1000 rpm to 1600 rpm) and maximum fuel doses. The injector was not optimized in relation to engine performance. The objectives of the research were determination either the working quality of a new injector and their influence on combustion process in different method of mixture preparation process. The obtained results show a direction of further researches that impact on system optimization, injector manufacturing improvement, fuel preparation improvement to obtain proper droplet size and both fuel consumption reducing and toxic exhaust gases emissions reducing.

Słowa kluczowe

EN

combustion engines; emissions; fuel preparation; injection

• Wydawca: Wydawnictwo Naukowe Sieci Badawczej Łukasiewicz - Przemysłowego Instytutu Motoryzacji
• Czasopismo: Archiwum Motoryzacji
• Rocznik: 2004
• Tom: Vol. 7, nr 3
• Strony: 255--262
• Opis fizyczny: Bibliogr. 6 poz.,Rys., wykr.,

Twórcy

autor

Sowa K.

• Krakow Uniwersity of Technology

autor

Zabłocki M.

• Krakow Uniwersity of Technology

autor

Jankowski A.

• Institute of Aeronautics Al. Krakowska 110/114, 02-256 Warszawa

autor

Sandel A.

• The National Automotive Center, Warren, USA

Bibliografia

• [1] Gill D. W., Heimel G., Herzog P. L.: A Variable Nozzle Concept for High Speed DI Diesel Engines. IMechE Seminar on Diesel Fuel Injection Systems 28-29 Sept 1995.
• [2] Hasegawa T, Matsui K, Iwasaki T, Kobayashi T & Matsumoto Y.:Injection Characteristics and Spray Features of the Variable Orifice Nozzle Direct Injection Diesel Engines. SAE 980807.
• [3] Jankowski A., Sandel A.: Influence of Fuel Quality on Mixture Preparation and (VON) for Exhaust Emissions From Diesel Engines with Common Rail System. Journal of KONES Internal Combustion Engines 2003, vol. 10, No. 3-4.
• [4] Sowa K., Zablocki M., Szymanski J.: ,,Some Properties of the New Multiorifice Injection Design with Variable Cross Section of Injecting Holes (in Polish)." Proceedings of AUTOPROGRESS-KONMOT 2002 Conference, 28-30 May 66 2002. Vol. 2. Internal Combustion Engines.
• [5] Soteriou C., Andrews R., Smith M., Torres N., Sankhalpara S.: The Flow Patterns and Sprays of Variable Orifice Nozzle Geometries for Diesel Injection. SAE 2000-01-0943, SAE 2000 World Congress.
• [6] Yarnamoto H., Nilmura K.: Characteristics of Fuel Sprays from Specially Shaped and Impinging Flow Nozzles. SAE 950082.