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The Scuderi engine, formally called the Scuderi Split Cycle Engine, is a split cycle, internal combustion engine invented by Carmelo J. Scuderi (April 13, 1925 – October 16, 2002). Scuderi Group, an engineering and licensing company based in West Springfield, Massachusetts and founded by Carmelo Scuderi's children, is testing a working prototype of the engine that was officially unveiled to the public on April 20, 2009.〔("First Scuderi Engine Prototype Assembled," Air-Hybrid Blog Podcast, 02/9/2009 )>〕 The Scuderi engine is under development by Southwest Research Institute in San Antonio, Texas. Scuderi Group released video footage of a naturally aspirated one-liter prototype of the Scuderi engine firing on its own in the laboratory in October, 2009. == Design == Scuderi engines have paired cylinders, each of which performs two of the tasks (strokes) of a conventional engine. The compression cylinder performs intake and compression. The power cylinder performs combustion and exhaust. Compressed air is transferred from the compression cylinder to the power cylinder through a crossover passage. Fuel is then injected and fired to produce the power stroke. The power cylinder fires just after the piston has begun its downward motion ("after top dead center", or ATDC). The Scuderi Group says ATDC eliminates a thermal efficiency shortcoming seen in previous split-cycle engine designs. Firing ATDC in a split-cycle arrangement is claimed to eliminate the losses resulting from recompressing the gas. In a conventional Otto cycle engine, each cylinder performs all four strokes per cycle. This means that two revolutions of the crankshaft are required for each power stroke. The pistons fire every other revolution, while the Scuderi engine fires every revolution. The Otto cycle design convention calls for combustion just before top dead center (BTDC) in order to allow combustion pressure to build. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scuderi engine」の詳細全文を読む スポンサード リンク
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