Recent content by ADoyle88

I've posted here about a prototype motor that my dad and I are working on. We've started machining parts (so far just a few little pieces have been completed). The cylinder block is currently being cut on the CNC mill. Live video of the machining can be found here. The part has about 18 hours...

We just got back into town from vacation. Sorry for the delayed response. I am currently working on making an animation that shows the entire assembly and the path of the fuel and air through the motor. This video will be the best way to explain how the motor works. The progress on the...

We have attempted to perform P-V diagrams but I am only a student and my dad is a machinist and the calculations are a bit out of our league. Also, calculating the volume isn't as easy as a conventional engine; in our engine multiple cylinders are open to one another at various times. Some high...

I have posted a video that should help explain how the Mazda seals are used in our engine. These Mazda seals lead us to a possible disadvantage of the motor. In the Wankel, oil injectors add oil in front of the seals to preserve the apex seals. Because this oil is injected into the combustion...

The Doyle Rotary does not have a valve-train. So no energy is lost to turning the camshaft to open the valves. Instead of valves, ports are opened to the cylinders as the motor turns over. These ports open and close instantly rather than gradually opening and gradually closing like in a...

I'm posting here to hopefully get questions, comments, suggestions and criticisms. My dad has been developing a new engine for 25 years and now has a design (patent pending) that is ready to be released to the internet. His design is a split-cycle rotary-piston engine that utilizes proven...