Patent reveals Mazda might still be working on RWD rotary-powered hybrid

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A patent filing suggests once again that Mazda may bring back the rotary engine, this time for a hybrid powertrain.

A recent European patent filing hints that Mazda might still be working on a rotary-engine revival, possibly as part of a hybrid powertrain for a rear-wheel-drive vehicle., the document describes a drive unit for hybrids designed to be located near the center of a car for optimal weight distribution, and incorporating a shared cooling system for both an electric motor and an internal-combustion engine.

The filing doesn't refer to just any internal-combustion engine, though. The document specifically mentions a rotary engine, saying that would be preferable because of the rotary's compact size, while noting that a piston engine could be substituted.Accompanying drawings show a rear-wheel-drive vehicle, with what appears to be a transaxle, as well as a version with electric motors powering the front-wheels.

 

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