Development Experience of a Multi-Cylinder CCVS Engine

Paper #:
  • 950165

Published:
  • 1995-02-01
Citation:
Lake, T., Stokes, J., Pendlebury, K., and Denbratt, I., "Development Experience of a Multi-Cylinder CCVS Engine," SAE Technical Paper 950165, 1995, https://doi.org/10.4271/950165.
Pages:
12
Abstract:
A system for stratifying recycled exhaust gas (EGR) to substantially increase dilution tolerance has been applied to a multi-cylinder port injected four-valve gasoline engine. This system, dubbed Combustion Control through Vortex Stratification (CCVS), has shown greatly improved fuel consumption at stoichiometric conditions whilst retaining ULEV compatible engine-out NOx and HC emission levels. A production feasible variable air motion system has also been assessed which enables stratification at part load with no loss of performance or refinement at full load.
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