Comparison of characteristics of spark pług engines FSI, TSI/TFSI type of Volkswagen Company

• Autorzy: Miksiewicz K. , Tkaczyk M. , Rymarowicz M.
• Języki publikacji: EN

Abstrakty

EN

The use of direct injection in spark ignition engines significantly facilitated the use of chargers in these engines. This resulted lately in the significant popularization of direct injection engines, initially freely sucking and in final result turbocharged. The greatest popularity on the market gained engines of Volkswagen Company, named FSI and TFSI / TSI. Application of Common Rail systems allowed not only improving the characteristics of the engine by increasing the accuracy in dispensing fuel into individual cylinders. The most important gain is the possibility ofsecond injection of the fuel to the cylinder after the intake valve is closed. On the one hand it allows better control of the load in the cylinder, at first with the piston crown, and now with shaping the injection by the injector. On the other hand it allows creating a stratified mixture, at low load of the engine it reduces fuel consumption and work at high excess air ratios lambda Quickly it began to use the turbocharger in those engines due to the significant improvement in the operating characteristics of such engine. Profit from better filling of the combustion chamber can be used in different ways. On the one hand, you can replace engines naturally aspirated, with turbocharged with lower displacement, which leads to the improvement of the economics of such engine. On the other hand, after appropriate modifications to the design, you can add a charger to the naturally aspirated engine, retaining its capacity. Gains are then not only higher operating parameters, such as power and torque, but it also significantly improves the torque curve. It has big impact on the flexibility of the engine and the vehicle which is powered by it. Another gain is larger amount of work done by the engine.

Słowa kluczowe

EN

transport; combustion engines; fuel injection; stratified injection; charge engines

• 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: 2010
• Tom: Vol. 17, No. 4
• Strony: 337--343
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Miksiewicz K.

autor

Tkaczyk M.

autor

Rymarowicz M.

• Technical University of Wrocław Department of Mechanical Engineering Łukasiewicza Street 7/9, 50-371 Wrocław, Poland tel: [phone], fax: [phone],

Bibliografia

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• [3] Volkswagen AG, Bezposredni wtrysk benzyny, Wolfsburg 2002.
• [4] Wajand, J. A., Wajand, J. T., Tłokowe silniki spalinowe średnio- i szybkoorotowe, WNT, Warszawa 2005.
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• [6] Zeszyt do samodzielnego kształcenia nr 322, Silnik 2,0l FSI z techniką czterozaworową, Budowa i zasada działania, Volkswagen AG, Wolfsburg 2003.
• [7] Zeszyt do samodzielnego kształcenia nr 337, Silnik 2,0l FSI z turbodoładowaniem, Budowa i zasada działania, Volkswagen AG, Wolfsburg 2004.
• [8] Zeszyt do samodzielnego kształcenia nr 359, Silnik 1,4l TSI z doładowaniem dwustopniowym, Budowa i zasada działania, Volkswagen AG, Wolfsburg 2006.
• [9] Zeszyt do samodzielnego kształcenia nr 401, Silnik 1,8l TFSI z łancuchem rozrzadu, Budowa i zasada działania, Seat S.A., Barcelona 2007.
• [10] Zeszyt do samodzielnego kształcenia nr 405, Silnik 1,4l TSI z doładowaniem, Budowa i zasada działania, Volkswagen AG, Wolfsburg 2007.