Mazda is developing a two-rotor hybrid rotary engine for the U.S. market.
The dual-rotor design boosts power generation, meeting U.S. demands for higher output.
Iconic SP’s hybrid system reflects Mazda’s focus on carbon-neutral rotary solutions.
Mazda CEO Masahiro Moro has confirmed the development of a two-rotor rotary engine, which the automaker believes is better suited to the demands of the North American market.
Speaking about the challenges of rotary engine development, Moro explained that the single-rotor setup in some previous applications failed to meet power requirements for these markets. “If we are thinking about the U.S. market, one rotor is not enough,” Moro stated. He added that the move to two rotors will provide the necessary power generation while remaining compliant with stringent emissions standards.
The two-rotor engine is part of a broader electrification strategy, exemplified by the sublime Iconic SP concept, unveiled in October 2023. The concept vehicle features a compact dual-rotor rotary engine paired with an electric drivetrain. According to Mazda, the hybrid setup extends the range and can reduce emissions by up to 90% when running on carbon-neutral fuels.
Mazda’s chief designer, Masashi Nakayama, has also hinted that the Iconic SP was designed with a production model in mind. This suggests the hybrid system could also see broader applications in Mazda’s future lineup.
While no specific vehicle for the two-rotor hybrid powertrain has been confirmed, its design resembles the range-extender setup in the Mazda MX-30 e-Skyactiv R-EV. However, the Iconic SP, with its higher output of 365 hp (272 kW), is far more interesting and aligned with Mazda’s goals of combining power and emissions reductions.
In addition to extending range, the rotary engine may power future sports cars. A Mazda patent filed in mid-2024 describes a hybrid system that places a rotary engine behind the front axle to drive the rear wheels. This setup also incorporates front hub motors powered by a battery pack.
Mazda’s rotary engine developments are part of a broader effort to keep internal combustion engines (ICEs) relevant. In May 2024, Mazda joined Toyota and Subaru at the Multi-Pathway Workshop to showcase next-generation powertrains, including compact rotary engines and hybrid systems.
Source: Carscoops
