Experimental Measurements and Computations for Clarifying Nearly Complete Air-Insulation Obtained by the Concept of Colliding Pulsed Supermulti-Jets

<div class="section abstract"><div class="htmlview paragraph">In our previous reports, we proposed a new focusing engine with high thermal efficiency based on relatively-silent high compression and nearly-complete air-insulation effect, which employs pulsed multi-jets of gas collided around chamber center. Local compression level due to the gas jets colliding around chamber center before reaction can be varied from zero to 100MPa and 3000K, by changing the number of jets and intake pressure. Relatively-silent high compression is possible, because region around chamber wall is at pressure level of traditional engines. This is suitable for various usages of automobiles, aerocrafts, and rockets, and also for various fuels including hydrogen, because high compression around chamber center leads to stable auto-ignition and potential of low NOx at very lean burning operation.</div><div class="htmlview paragraph">We developed two types of focusing compression engines, without and with piston. For the new engine without piston, we obtained nearly-complete air-insulation and high thrust. In this report, we show very less occurrence of knocking of gasoline in the engine having strongly-asymmetric double piston system, which leads to potential of braking thermal efficiency over 50% even for small engines.</div></div>

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Experimental Measurements and Computations for Clarifying Nearly Complete Air-Insulation Obtained by the Concept of Colliding Pulsed Supermulti-Jets

Cited by 2 publications

References 26 publications

Two Prototype Engines with Colliding and Compression of Pulsed Supermulti-Jets through a Focusing Process, Leading to Nearly Complete Air Insulation and Relatively Silent High Compression for Automobiles, Motorcycles, Aircrafts, and Rockets

Two Prototype Engines with Colliding and Compression of Pulsed Supermulti-Jets through a Focusing Process, Leading to Nearly Complete Air Insulation and Relatively Silent High Compression for Automobiles, Motorcycles, Aircrafts, and Rockets

Combustion Experiments of Focusing Engine with Asymmetric Double-Piston System Leading to Relatively-Silent High Compression Ratios

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