一周前，马自达刚刚宣布计划推出无火花塞汽油引擎，近日马自达又在当地注册局申请了一份引擎专利设计图，采用双涡轮增压引擎结合电动增压器。其基本原理很简单但却很精彩。电动增压器只在引擎低速运转时才启动，可消除涡轮迟滞现象，只有在转子高速运转时，才会同时启动双涡轮增压。而中冷则为电动增压器和涡轮增压器排出的空气降温。美国《MotorTrend》杂志指出，新引擎“很明显是为后驱车辆开发的”，这让人感到很振奋。虽然目前不清楚引擎排量，但很明显这不是为Miata这类小型车开发的，因此可能是为其他后驱车型，甚至是RX-8后继车型之类的大型运动车开发的。
Mazda Patents Twin-Turbo Electric Supercharger Engine
Just a week after it announced its plans for a revolutionary sparkles gasoline engine, Mazda has filed a patent application for another impressive technology that might give the good old ICE a fresh breath of air. What we see in the attached images is an engine that uses two conventional turbochargers and an electric supercharger.
The basic idea is simple yet brilliant. The electric supercharger is used to build pressure in the low end of the rev range, eliminating the turbo lag, while the classic turbos improve the efficiency and give more power in the higher revs. Naturally, an intercooler is used to cool intake air discharger from the electric supercharger and the turbochargers.
Motor Trend points out that this new engine is “clearly meant for a rear-wheel-drive car,” which makes us even more excited about it. We don’t know its displacement, but it already seems too complicated and, probably, too big and powerful for the Miata, so another RWD car should be the answer. One possible and more plausible option would be a larger sports car, something like a non-rotary successor for the RX-8.