In keeping with patent paperwork uncovered by CarBuzz, Audi is trying to develop a compact, low-vibration, boxer-style vary extender engine to additional improve the vary of its electrical automobiles. The explanations they might wish to do such a factor quite than merely soldier on with conventional hybrids are talked about within the submitting, which lists points akin to area, weight, vibration, and noise. Many of those points could possibly be solved with a Wankel rotary engine, notes the doc, however “poor thermal effectivity” and “an unfavorably formed combustion chamber” put such an concept to mattress within the minds of Audi engineers. Thus, a tightly packaged two-cylinder boxer is the best way ahead.

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