马自达一位高管近日透露了转子引擎和RX系列车型的一些细节。据传马自达计划在全新RX系列车型中重新恢复使用转子引擎，而此时马自达高管透露转子引擎细节表明这些传言是真实的。马自达将于2017年推出搭载转子引擎的概念车以纪念车厂成立50周年，而量产版将于2020年发布，新车很可能会被命名为RX-9。该车搭载一台全新的16X双转子引擎而不是RX-8搭载的1.3升Renesis转子引擎。预计新引擎功率将达到335千瓦/450马力，引擎采用双阶涡轮系统，配备“电动涡轮辅助”功能，可在低转速下激活，而普通的废气驱动涡轮增压器则在高转速下提供辅助动力。由于这种设计，转子引擎面临的主要三个问题：过度使用燃油，油耗和尾气排放太高以及中段加速扭矩不足都可迎刃而解。此外，RX-9还将采用2016款MX-5的轻量化车身结构和碳纤维部件，使车重控制在约1280公斤。

 

Rotary-powered 450 bhp Mazda RX-9 concept allegedly coming in 2017, production due in 2020

A senior Mazda executive has shared some juicy details about the highly anticipated revival of the rotary engine and RX reboot.

 

Rumors about Mazda's plans to resurrect the rotary engine in an all-new RX model keep coming back so there has to be some truth in them, especially since this time a Mazda executive is being cited. Sometime in 2017 we should expect to see a new rotary-driven concept which will celebrate the 50th anniversary of the first rotary-powered Mazda, the 1967 Cosmo Sport 110S.

 

The concept will be more than just for show as a production version will come out in 2020 and will likely be commercialized with the "RX-9" moniker. The car will be powered by an all-new twin-rotor 16X engine rather than keeping the 1.3-liter Renesis rotary motor of the defunct RX-8. With an estimated output of 450 bhp (335 kW), the engine will benefit from a two-stage turbo system featuring an "electric turbo assist" function activated in the low rpm range while the regular exhaust-driven turbo will kick in at higher rpm levels.

 

Thanks to this hardware setup, the rotary engine's main three problems will be resolved: excessive oil use, high fuel consumption & emissions as well as poor mid-range torque. In addition, the Mazda RX-9 will benefit from 2016 MX-5's lightweight construction combined with several carbon fiber components which will enable the model to weigh approximately 1,280 kg (2,822 lbs).