Patent Diagrams Reveal Direct Injection Mazda Renesis Rotary Engine

A great engine. I wunder how much more economical it would be. It's a 1.3 with the fueleconomie of a v8, I'm a bit amazed that they don't cancel this engine. They must be very confident about it. Still, no turbo on this engine, deffinately a plus point

if i'm mot mistaken, the explanation of the new rotary is already being published in Mazda site http://www.mazda.com/mazdaspirit/rotary/16x/

The 70mm and 76mm Width of the rotors shows there are two engines one of 1.6 litre and the other 1.8, the later could be used in their Hydrogen applications, this is part of the reason why Mazda has persisted in the development of the rotary engine as it works efficiently with both Hydrogen and normal petroleum (gas), you will more than likely see a "Duel" fuel Rotary in a few years time. The series II (09) RX-8 RENESIS has many of the 16X features, new oil pump and oil metering pump design with two extra lubricating nozzles for the Apex Seals, this now actually uses less engine oil as distribution is more even than the 04-08 RENESIS I engines. The side intake and exhaust treatment is not new and is already used in the existing RX-8 engines. What is new are the longer stroke rotors and aluminum side housings. Fuel efficiency gains are from Direct injection and elimination of port overlap. So, you will see the new 16X in an all gas engine rotary with about 290HP , and the larger 18? in a hybrid duel fuel. Mazda are to be applauded for continuing to refine this great engine to a point where they can now call it their own.

It is a slightly strange obsession of Mazdas- because it is so fuel inefficient