Illustration for article titled The Forward Progression Of Rotary Engines

114 years ago last week, Stephen M. Balzer patented the first rotary-engine. Sometimes confused with the Wankel Rotary used in vehicles like this 1980s Mazda Rx-7 Spec B Rally, Balzer's design was vastly different. (H/t to all for the correction) (Photo Credit: exfordy)


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