Throttleless control of SI engine load by fully flexible inlet valve actuation system

• Autorzy: Żmudka Z. , Postrzednik S. , Przybyła G.
• Języki publikacji: EN

Abstrakty

EN

A system with independent, early inlet valve closure (EIVC) has been analysed. The open, theoretical cycle has been assumed as a model of processes proceeding in the engine with variable inlet valve actuation. The system has been analysed individually and comparatively with open Seiliger-Sabathe cycle which is theoretical cycle for the classic throttle governing of engine load. The influence of EIVC on fuel economy, cycle work, relative charge exchange work and cycle efficiency has been theoretically investigated. The use of the analysed system to governing of an engine load will enable to eliminate a throttling valve from inlet system and reduce the charge exchange work, especially within the range of partial load. The decrease of the charge exchange work leads to an increase of the internal and effective works, which results in an increase of the effective efficiency of the spark ignition engine.

Słowa kluczowe

EN

spark-ignition engine; variable valve actuation; early inlet valve closure; theoretical cycle; charge exchange process; cycle efficiency

PL

silnik o zapłonie iskrowym; cykl teoretyczny; wydajność cyklu

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2016
• Tom: R. 55, nr 1
• Strony: 44--48
• Opis fizyczny: Bibliogr. 16 poz., wykr.

Twórcy

autor

Żmudka Z.

• Faculty of Power and Environmental Engineering, Silesian University of Technology, Gliwice, Poland

autor

Postrzednik S.

• Faculty of Power and Environmental Engineering, Silesian University of Technology, Gliwice, Poland

autor

Przybyła G.

• Faculty of Power and Environmental Engineering, Silesian University of Technology, Gliwice, Poland

Bibliografia

• [1] Żmudka Z., Postrzednik S. Flow resistance in the engine inlet-exhaust system as affected by the engine parameters. Combustion Engines 2009 1(136).
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• [3] Postrzednik S., Żmudka Z. Application research on procedures for independent control of the internal combustion engine valves. Project nr N502 026 32/2190. PBU-30/RIE-6/07, Report, Gliwice 2009.
• [4] Żmudka Z., Postrzednik S., Przybyła G. Late intake valve closing as a way of the throttleless control of SI engine load. Journal of KONES – Powertrain and Transport, 2012 19(1) 491-499.
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.