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Hydrogen Rotary Wankel engine, Engineering, Mazda


DOI: 10.1016/j.ijhydene.2022.03.223 Corpus ID: 248140453; An experimental study on ignition timing of hydrogen Wankel rotary engine @article{Yang2022AnES, title={An experimental study on ignition timing of hydrogen Wankel rotary engine}, author={Jinxin Yang and Changwei Ji and Shuofeng Wang and Hao Meng}, journal={International Journal of Hydrogen Energy}, year={2022}, url={https://api.

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Garside noted that this technology is key to the air-cooled-rotor Wankel's future successful application as a hydrogen-fueled range-extender engine, especially when compared to rotary designs using oil-cooled rotors.

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The findings show that hydrogen has excellent compatibility with Wankel engines and hydrogen enrichment is a very practical concept for the improvement of the performance of these engines for UAVs. Thus, Wankel engines, which are already a very favorable power source for UAVs, become even more favorable by the hydrogen-blending strategy. Keywords

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Abstract. This paper establishes a 0-D model based on the real gas properties and laminar flame propagation speed to predict the performance of a hydrogen-fueled Wankel rotary engine. The performance comparative analysis between hydrogen-fueled and gasoline-fueled Wankel rotary engines is conducted under the same fuel heat value input. Furthermore, the effects of rotational speed, ignition.

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The knock characteristic of hydrogen-fueled Wankel rotary engine is analyzed. • There are mathematical relationships among parameters characterizing knock. • Maximum pressure rise rate is a better metric to characterize WRE knock. • Misfire caused by knock in WRE is different from reciprocating piston engines. Keywords Hydrogen Wankel rotary engine

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Hydrogen fuelled Wankel engine studies are reviewed. • H 2 is effective on reducing SFC and carbon emissions in Wankel engine. • H 2 is more resistant to abnormal combustions in Wankel engine. • NO x emission of Wankel engine can be reduced by extending LOL with hydrogen. •

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Schematic diagram of the rotary engine. Download Scientific Diagram


The Wankel engine ( ˈvaŋkəl̩, VUN-kell) is a type of internal combustion engine using an eccentric rotary design to convert pressure into rotating motion. The concept was proven by German engineer Felix Wankel, followed by a commercially feasible engine designed by German engineer Hanns-Dieter Paschke. [1]

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Hydrogen Wankel rotary engines (WREs) are of increasing interest to researchers due to their excellent power and emissions characteristics. For WREs, the intake and exhaust phases significantly influence performance and emissions.

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Keywords Lean burn ·Ultra lean ·Wankel rotary engine ·Hydrogen enrichment · Gasoline ·Ethanol 41.1 Introduction The rotary Wankel engine is an alternative of the reciprocating engine [1]. The Wankel engine can be used in conventional vehicle as well as in Hybrid Electric Vehicles (HEV) for range extended hybrid, designed for much lighter.

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The purpose of the present paper is to demonstrate the influence of the fuel used (ethanol, gasoline) blended hydrogen on Wankel spark-ignition engine performance. The experimental data collected through this work, have shown that the use of pure ethanol can improve the engine performance compared to gasoline. However, ethanol is a high fuel.

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@article{Wang2022MultiobjectiveOO, title={Multi-objective optimization of a hydrogen-fueled Wankel rotary engine based on machine learning and genetic algorithm}, author={Huaiyu Wang and Changwei Ji and Cheng Shi and Jinxin Yang and Shuofeng Wang and Yunshan Ge and Ke Chang and Hao Meng and Xin Wang}, journal={Energy}, year={2022}, url={https.

DARPA Funds LiquidPiston's 30kW X4 Rotary Diesel Engine Prototype with


19 kW 4000 rpm hydrogen 340 x 590 x 570 mm 70 kg Built for high performance use in small installation spaces. Our motors allow mechanical power from 15 kW - 90 kW. With an overall height of less than 50 cm. This makes them ideal for generator sets and the upgrading of auxiliary power units, auxiliary power generators and power generators.

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Hydrogen-fueled Wankel rotary engine (WRE) suffers from high NOx emissions, high risk of knock and uneven thermal load. The goal of this work is to investigate the application of quantitative.

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The results indicate that hydrogen is a promising substitute for conventional carbon-based fuels in Wankel engines, as it can reduce carbon dioxide (CO 2) emissions. The DI strategy has the potential to increase engine performance by improving volumetric efficiency and better controlling the fuel mass trapped in the combustion chamber.

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A rotary engine, also known as a Wankel engine, is a type of internal combustion engine that uses a triangular-shaped rotor in an oval chamber as shown in Figure 1.. The leading spark plug was found to be suited better for hydrogen-fueled Wankel rotary engines than a trailing spark plug. The leading spark plug enabled the rotary engine to.