Mazda Files Patent For A Twin-Turbo Engine With An Electric Supercharger

Mazda has already announced plans for an efficient Homogeneous Charge Compression Ignition (HCCI) engine but a new patent application suggests the company could also be working on something far more interesting.

Unearthed by Road and Track, the patent application covers a high-tech engine that uses an electric supercharger and two turbochargers. The supercharger would be used to provide low-end power while the exhaust driven turbochargers are being spooled up.

The system is somewhat similar to Volvo’s Drive-E Powertrain concept which was a 2.0-liter four-cylinder engine equipped with Triple Boost Technology. Mazda’s system might not produce the 450 hp (335 kW) that Volvo’s did but it would provide a number of benefits including improved performance and virtually no turbo lag.

There’s no word on whether or not the company will actually offer the tri-charged system but speculation suggests the electric supercharger could be powered by Mazda’s capacitor-based i-Eloop system.

Regardless of how the supercharger is powered, the application shows the system being used in a rear-wheel drive vehicle. This automatically brings to mind a high-performance MX-5 or possible RX-8 successor but patents don’t always translate into real products.

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  • Dennis James

    Did they hear about the Audi SQ7, already in production, with 2 turbos and an electric 48V supercharger ?

    • eb110americana

      That is a diesel, so this is unique at least in being used on a gasoline engine. But several companies are all simultaneously developing this technology. Mercedes will soon have it on some of their new inline six engines. I believe Valeo was developing the tech for several years now, so who knows, multiple brands may be sourcing from them as well.

    • dtd

      I wonder if they will put it in the next Mazda 6.

      • Benjamin B.


        • dtd

          I plan to buy a new car within a year . I really consider Mazda ,either the next 6 or the next 3.

    • Gaetan Dainotti

      it exists on the BMW M550d since 2012 i think…

      • Dennis James

        Nope. The 550d has a classical engine with no electric aids.

  • Six_Tymes


  • Benjamin B.

    How do you file a patent on forced induction?

  • ME

    The CX-5 deserves this power as it is seen on the slow side of the spectrum.

    • Aquaflex

      I don’t know why mazda did not put in the 2.5 liter turbo into the CX-5!

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