Novel Over-Expanded Six-Stroke Engine Mechanism

Abstract

Some of the exhaust waste heat of the four-stroke engines can be transformed into useful work in a variety of ways. With the exhaust heat recovery from / of the six-stroke engine mechanisms, the goal is to increase the thermal efficiency by converting the waste heat of useful work for the engine. Despite the availability of many patents related to six-stroke engines today more study and research are required to be used industrially. In this study, instead of a conventional six-stroke engine, a variable-stroke six-stroke engine mechanism was theoretically examined. An idealized thermodynamic model of the novel mechanism was constructed, kinetic and dynamic analyzes were made, and the design parameters were examined in comparison with the conventional engine mechanism. As a result , compared to the conventional six-stroke engine mechanism under the same conditions as this study , while the engine torque was increased by 10% , whereas the load on the crankshaft increased by only 1% .

Keywords

• Six stroke,Over-expansion,Variable stroke,Planetary gear mechanism,Dynamic Analysis

Novel Over-Expanded Six-Stroke Engine Mechanism

Abstract

Dört zamanlı motorların egzoz atık ısısının bir kısmı, çeşitli şekillerde faydalı işlere dönüştürülebilir. Altı zamanlı motor mekanizmalarının egzoz ısısı geri kazanımı ile amaç, motor için faydalı işlerin atık ısısını dönüştürerek ısıl verimliliği arttırmaktır. Bugün altı zamanlı motorlarla ilgili birçok patentin varlığına rağmen, endüstride daha fazla çalışma ve araştırma yapılması gerekmektedir. Bu çalışmada, geleneksel altı zamanlı bir motor yerine, değişken stroklu altı zamanlı bir motor mekanizması teorik olarak incelenmiştir. Yeni mekanizmanın idealize edilmiş bir termodinamik modeli oluşturuldu, kinetik ve dinamik analizler yapıldı ve tasarım parametreleri geleneksel motor mekanizmasına göre incelendi. Sonuç olarak, bu çalışma ile aynı koşullar altında geleneksel altı zamanlı motor mekanizmasına kıyasla, motor torku %10 artarken, krank milindeki yük yalnızca %1 artmıştır.

Keywords

• Altı-zamanlı,Aşırı genleşmeli,Değişken kurs,Planet dişli mekanizması,Dinamik Analiz

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