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EXlink (Extended Expansion Linkage Engine) :
With the goal of taking energy efficiency to a new level, Honda developed its own linkage engine design based on Atkinson’s extended-expansion cycle engine, invented some 130 years ago. The first small engine of its type to be commercially produced, the revolutionary EXlink has an expansion stroke longer than its compression stroke to realize an expansion ratio higher than its compression ratio.
In contrast to a conventional Otto cycle engine, in which the piston strokes are typically of the same length, the EXlink has expansion and exhaust strokes that are longer than its intake and compression strokes. The result is an expansion ratio that is more than 1.4 times higher than the compression ratio, allowing EXlink to offer lower pumping losses and substantially higher thermal efficiency than a conventional engine
With the goal of taking energy efficiency to a new level, Honda developed its own linkage engine design based on Atkinson’s extended-expansion cycle engine, invented some 130 years ago. The first small engine of its type to be commercially produced, the revolutionary EXlink has an expansion stroke longer than its compression stroke to realize an expansion ratio higher than its compression ratio.
In contrast to a conventional Otto cycle engine, in which the piston strokes are typically of the same length, the EXlink has expansion and exhaust strokes that are longer than its intake and compression strokes. The result is an expansion ratio that is more than 1.4 times higher than the compression ratio, allowing EXlink to offer lower pumping losses and substantially higher thermal efficiency than a conventional engine
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