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Fluid Flow, Combustion and Efficiency With Early or Late Inlet Valve Closing

Författare

  • Fredrik Söderberg
  • Bengt Johansson

Summary, in English

This paper is a study of the effects of valve timing and how it influences the in-cylinder fluid flow, the combustion, and the efficiency of the engine. An engine load of 4.0 bar imepdndedt was achieved by setting the inlet valve closing time early or late to enable unthrottle operation. Inlet valve deactivation was also used and asymmetrical valve timing, i.e., valve timing with the two inlet valves opening and closing at different times. The valve timing was altered by switching cam lobes between the experiments.

Publiceringsår

1997

Språk

Engelska

Publikation/Tidskrift/Serie

SAE Transactions, Journal of Engines

Volym

106

Issue

SAE Technical Paper 972937

Dokumenttyp

Artikel i tidskrift

Förlag

Society of Automotive Engineers

Ämne

  • Other Mechanical Engineering

Nyckelord

  • Combustion
  • Fluid Flow
  • Variable Valve Timing
  • Engine

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0096-736X