Effects of Charge Motion Characteristics on Engine Variables such as Emission Behavior and Efficiency

Blechstein, André; Behnk, Kai; Deepe, Roland; Donath, Stefan; Sommer, Ansgar; Stiegler, Lutz

doi:10.4271/2007-01-0640

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“…The gas motion characteristics during the breathing stroke, especially turbulent characteristics and bulk motion are the dominant parameters of heat transfer, combustion process, and air fuel mixing [8][9][10]. The performance relies on the designs of the cylinder head, inlet port and valve interacting with piston movement and cylinder walls [6,10].…”

Section: Introductionmentioning

confidence: 99%

Comparison of The Flow Characteristics between Circular and Wedged Configurations in Internal Combustion Engine Chambers

Amer¹,

Shouman²,

Sinaa³

et al. 2021

مجلة تطویر الأداء الجامعى

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Flow characteristics in internal combustion engine chambers of wedged and circular cross-sectional configurations were numerically investigated during intake stroke. The convex radius reduction effect on primary and secondary flow parameters was studied. Results indicated a pressure drop increase of 0.05%, and swirl number and secondary vortex intensity reductions of 14.04% and 75.57% respectively compared to circular configuration. Further optimization is needed to increase compactness without sacrificing performance.

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Section: Introductionmentioning

confidence: 99%