NEW Rotary Engine? Mazda just Updated their Rotary Engine Patents!

So not one, but TWO patents were filed by Mazda regarding the rotary engine earlier in the year.  Both are in Japanese and both include a batch of images that show some pretty interesting changes.

To provide a rotary piston engine capable of enhancing intake efficiency.

SOLUTION: In a rotary piston engine, there are provided a rotor housing 5 encircling an outer periphery of a rotor 3, and a side housing 6 provided at a lateral side of the rotor 3 for partitioning a rotor housing chamber 2 together with the rotor housing 5. An intake port 11 is formed in the side housing 6, and a side exhaust port 13 formed in the side housing 6 and a peri-cyclic exhaust port 14 formed in the rotor housing 5 are provided as exhaust ports 13, 14. The side exhaust port 13 is provided at a position where a period for the intake port 11 opening in an operation chamber A in an intake stroke and a period for the side exhaust port 13 opening do not overlap with each other, and the peri-cyclic exhaust port 14 is provided at a position where a period for the intake port 11 opening in the operation chamber A in the intake stroke and a period for the peri-cyclic exhaust port 14 opening overlap.

Download the first Patent here: Mazda Updated Rotary Patents - File 1

To provide a rotary piston engine system capable of enhancing intake efficiency, and to provide a vehicle mounted therewith.

SOLUTION: In an engine body 1, there are provided a rotor housing 5 encircling an outer periphery of a rotor, side housings 6 provided on both front and rear sides of the rotor 5, an exhaust port 13 for delivering exhaust gas from a rotor storage chamber 2, and intake ports 11, 12 for introducing intake air into the rotor storage chamber 2. The intake ports 11, 12 are formed in the side housings 6 at a front side so as to open to a lateral face 111 on the front side of the rotor storage chamber 2, and the exhaust port 13 is formed in the side housings 6 on the rear side so as to open to the lateral face 111 at the rear side out of the lateral face 111 in a longitudinal direction of the rotor storage chamber 2. A downstream end of the intake passage 30 extending from the intake ports 11, 12 is arranged at a portion near the upper-part front of the lateral.

Download the second Patent here: Mazda Updated Rotary Patents - File 2

Now, anyone out there with a better understanding of Japanese AND rotary engine workings want to further decipher what Mazda has in store for us?