Project Circlecycle:

The video on the right explains the operation of the Circlecycle concept and some of its many configurations.

 

Version 2: Proof of Concept

Bench Model: 8 Cylinder: Direct injection, Propane/Natural Gas. This operational model targeted for proof of concept, multiple cylinder/piston pairing on dual banks, continued development and improvement of various support systems such as compression seals, ignition systems, fuel distribution and cooling systems.

   

(Click on image to enlarge in a separate window.)

Images to the right show the engine core of Version 2 with cooling case removed.

   

   

This video demonstrates Version 2 being rotated very slowly, by hand to better illustrate the piston/cylinder fitment.

 

This video demonstrates Version 2 running on propane fuel

 

Version 3.0: Engine Core (Bench Model)

Bench Model: 4 Cylinder: Direct injection, Propane/Natural Gas. This operational model targeted for single bank, ceramic cylinders and polychain drive and alignment system. 

   

   

(Click on image to enlarge in a separate window.)

Image to the right shows the engine core of Version 3.0 assembly.

 

 

Version 3.8: Engine Core (Bench Model)

Bench Model: 4 Cylinder: Direct injection, Propane/Natural Gas. This operational model targeted for single bank,  geared drive and alignment system and composite compression seals for piston mounting or cylinder mounting.

(Click on image to enlarge in a separate window.)

   

     

 

Version 4: Design/Concept

Close Couple Design: 4 Cylinder: Direct injection, various fuels, ceramic cylinders, integral permanent magnet generator. 

(Click on image to enlarge in a separate window.)

 

 

 

 

   

 

 

 

   

Version 5: Engine Core (Bench Model)

Bench Model (Hybrid): 3 Cylinder: Close coupled, Direct injection, Propane, gear alignment, polychain drive. This operational model designed for development and testing.

(Click on image to enlarge in a separate window.)

     

Left Image: Component layout / assembly.

Right Image: Dyno table

     

Left Image: Gear alignment and Polychan drive (PTO)

Right Image: Dyno table

     

Version 6: Design/Concept

Close Couple Design: 3 Cylinder: Direct injection, Propane, polychain alignment, polychain drive (oil-less transmission). 

(Click on image to enlarge in a separate window.)

  

Left Image: Engine Core. Dual (redundant) Polychain drive, Timing belt and Alignment/Tension Control System.

Right Image: Dual Polychain Drive and Timing belt system for added reliability. Eliminates issue of gear backlash found in “geared” systems. Eliminates the need for lubricated gearbox. No expensive large gearbox oil seals. Belt tensioning and alignment system insures Piston-Cylinder alignment.

 

Left Image: Air Injection System. On-board Air compressor and Accumulator with control valves allows for direct air injection into the cylinders. This pressurized air injection system purges the exhaust gasses and supercharges the combustion gasses.

Right Image: Air Circulation. Dual Air Blowers provide primary air replenishment and internal cooling.

   

Left Image: Transmission Cooling. 

Right Image: Exhaust and Cooling Air flow.

   

Left Image: Combustion Circuit.

Right Image: Cylinder Assy.

   

The simulation video on the right describes the construction and motion of this design.

 

 

Version 7: Design/Concept

Close Couple Design: 6 Cylinder: Direct injection, super-chargable, Propane, Ceramic combustion zone,  polychain alignment, polychain drive (oil-less transmission). 

(Click on image to enlarge in a separate window.)

 

 

Left Image: Major component general layout.

Right Image: Drive Wheel Assemblies and Alignment System.

 

Left Image: Air supplied from blowers is used to cool drive wheel assy’s and outer case components. 

Right Image: Air introduced from blowers, cools inner case and central main bearings prior to being used for core component cooling and combustion.

Left Image: Fuel-Air distribution system.

Right Image: Cut thru top showing system as a whole.

     

The simulation video on the right describes the construction and motion of this design.

 

 

We hope that you enjoyed learning about our unique Circlecycle internal combustion engine project. To get in touch with us, please visit our Contact page.