Engine and laser researches of a novel injector with varied cross section nozzle for performance inprovement

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

Abstrakty

EN

Some results of preliminary engine performances and laser research are presented in the paper. Two kinds of injectors have been tested: the fist one - standard and the second - novel one on the basis of invention applied by M. Zablocki and J. Szymanski (P2944889). Investigations were conducted on the research Diesel engine equipped with varied cross section nozzle injector and on the LDV and POP A laser equipment. The novel research prototype injector has needle, which executes rotational - reciprocal movement. The novel worked-out injector has outflow holes with flow section that executes a change during the injection process, which enables lo 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 in relation to engine performance was not optimised. The objectives of the research were determination either the working quality of a novel 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 optimisation. Some results of novel injector concerning brake power fuel consumption, CO emission and HC emission are the same or better than of standard injector. One of the test results are not as good as expected. The reasons of worse test results have been investigated with the laser methods. One of them is leak of the prototype injector. After removing leakage laser test results were much better.

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2004
• Tom: Vol. 11, No. 3-4
• Strony: 195--217
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Sowa K.

• Kraków University of Technology Institute of Automobile Vehicles and Internal Combustion Engines ul. Warszawska 24, 31-155 Kraków, tel./fax: [phone]

autor

Zabłocki M.

• Kraków University of Technology Institute of Automobile Vehicles and Internal Combustion Engines ul. Warszawska 24, 31-155 Kraków, tel./fax: [phone]

autor

Jankowski A.

• Institute of Aeronautics, Al Krakowska 110/114, 02-256 Warszawa, tel [phone], fax: [phone]

autor

Sandel A.

• I'he National Automotive Center, Warren, Ml 48397-5000, 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 (VON) for Direct Injection Diesel Engines. SAE 980807
• [3] Jankowski A., Sandel A.: Influence of Fuel Quality on Mixture Preparation and Exhaust Emissions From Diesel Engines with Common Rail System. Journal of KONES Internal Combustion Engines 2003, Vol. 10, No. 3-4.
• [4] 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.
• [5] Sowa K., Zabłocki M., Szymański 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 2002. Vol. 2. Internal Combustion Engines.
• [6] Sowa K., Zabłocki M., Jankowski A., Sandel A.: Diesel engine researches with varied cross section nozzle of injector from point of view emission reduction and fuel consumption. Journal of KONES Internal Combustion Engines 2003. Vol. 10, No. 3-4.
• [7] Sowa K., Zabłocki M., Jankowski A., Sandel A.: Investigations of varied cross section nozzle of injector of Diesel engine for performance improving and toxic exhaust gases emission reducing. The Archives of Automotive Engineering. Vol. 7. No. 3. 2004.
• [8] Yamamoto H., Nilmura K.: Characteristics of Fuel Sprays from Specially Shaped and Impinging Flow Nozzles. SAE 950082.
• ]9] Zabłocki M., Szymański J.: Wtryskiwacz paliwa do silnika spalinowego. Urząd Patentowy RP. P94889.