Research in the Effects of Intake Manifold Length and Chamber Shape on Performance for an Atkinson Cycle Engine

Paper #:
  • 2016-01-1086

Published:
  • 2016-04-05
DOI:
  • 10.4271/2016-01-1086
Citation:
Zhang, T., Qin, J., Li, B., Wu, M. et al., "Research in the Effects of Intake Manifold Length and Chamber Shape on Performance for an Atkinson Cycle Engine," SAE Technical Paper 2016-01-1086, 2016, doi:10.4271/2016-01-1086.
Pages:
8
Abstract:
In order to improve the fuel consumption and expand the range of low fuel consumption area of a 1.5L Atkinson cycle PFI engine, the effect of the intake manifold length and chamber shape on the engine performance is investigated by setting up a GT-power (1-D) and an AVL-Fire (3-D) computational model which are calibrated with experimental data. After this the new engine was transformed to the test bench to do the calibration experiment. The results demonstrate that the intake manifold case_1 (the length is 300mm, side intake form) matched with a new designed chamber improves combustion in cylinder with a range 1.6∼7.4g/(kW•h) reduced in fuel consumption of speed that has been studied; the case_3 (the length is 100mm, intermediate intake form) matched with the new designed chamber with a range 3.86∼7g/(kW•h) reduced in fuel consumption of speed that has been studied. Both case_1 and case_3 expand the range of low fuel consumption area significantly.
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