WAISSI ENGINE LLC

WAISSI ENGINE LLC

The Company has developed an advanced DRIVETRAIN for the internal combustion engine. The drivetrain features no piston rods. Five U.S. utility patents have been awarded to the drivetrain, and the sixth patent is pending (May 2025).

The company was founded in 2011 in Phoenix, Arizona, U.S.A., with the goal to simplify the internal combustion engine drivetrain, and to improve engine efficiency.

The main objective was to develop, experiment, and test our patented concept of translating the reciprocating motion of a piston to the rotating motion of a crankshaft or driveshaft.

With the current 7th generation of the Waissi Engine drivetrain we demonstrate a simple drivetrain solution, which addresses and has solved the known (see refereed literature references) piston motion trajectory related deficiencies.

The 7th generation Waissi Engine drivetrain provides for

• a compact engine design;

• low center of gravity for the engine;

• simplified internal engine structure;

• a perfectly sinusoidal piston motion trajectory because of the absence of piston connecting rods;

• enhanced re-usability of parts and components in different engine configurations, and for different engine displacements, because of straight driveshaft/crankshaft, and because the piston motion trajectory remains always sinusoidal;

• reduced internal friction of the engine by nearly eliminating piston skirt friction;

• simplified internal engine balancing, because of the absence of connecting rods and related secondary forces;

• significantly increased time available for combustion, lower piston speed, lower piston acceleration, and lower volumetric change above the piston head during critical piston movement in the vicinity of TDC, when compared to any internal combustion engine with piston connecting rods, and at the same RPM.