Evaluation of Spark-Ignited Kerosene Operation in a Wankel Rotary Engine

Beyfuss, Bastian; Flicker, Lukas; Gotthard, Thomas; Hofmann, Peter; Zahradnik, Felix; Krenn, Christian; Lubich, Georg

doi:10.4271/2021-01-5046

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…4,5 However, kerosene can’t achieve ideal atomization performance in the WRE as the WRE has a low compression ratio. 6 The application of air-assisted fuel injection system (AAFI) to the WRE can improve the atomization performance because it can break up the kerosene’s droplets utilizing air’s inertia and expansion. 7 Nonetheless, when the AAFI is applied to the WRE, the air piston pump connected with the shaft needs to withstand the high speed because of the WRE’s characteristics, and the extra pressure wave is produced by the variable cylinder volume of the air piston pump.…”

Section: Introductionmentioning

confidence: 99%

Design and optimization of orifice plates in the air-assisted kerosene injection system applied in the wankel rotary engine

Cao

Liu

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Pressure stabilizing performance of orifice plates is analyzed by the method of simulation. To guarantee the high efficiency of analysis, an orthogonal table designation L9(34) is established. Range analysis is performed by using the method of orthogonal design. In the meantime, the results show that the number of horizontal plates is the main influence factor of pressure stabilizing performance. By analyzing flow characteristics, internal flow performance of pressure stabilizing cavity is demonstrated. Simultaneously, the mechanism of optimal pressure stabilizing performance is illustrated from both global and local perspectives. Increasing the number of horizontal plates reduces flow area of the cavity and brings extra throttling loss, thus improving the performance of pressure stabilizing. The final design of orifice plates can accurately control the amount of fuel injection which in turn guarantee the reliability of the air-assisted injection system.

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