Eliminating Side Thrust for Near-Frictionless Operation
One of the most innovative aspects of the CVSI Engine is its architecture designed to eliminate lateral piston forces entirely. Conventional engines suffer significant energy losses and wear due to piston side thrust — the CVSI Engine removes this problem by design.
Fig 1. Zero Lateral Piston Force — Overview
Fig 2. Efficiency Comparison
Fig 3. CVSI Engine Section
* Placeholder diagrams shown. Actual engineering drawings are proprietary and patent-protected.
Section 01
In every conventional piston engine, the connecting rod transmits force at an angle to the piston, creating a side force that pushes the piston against the cylinder wall. This piston slap causes friction, wear, noise, and energy loss throughout the engine's life. It is one of the primary reasons conventional engines require regular maintenance and have limited service life.
Section 02
The CVSI Engine's unique kinematic architecture allows the force transmission geometry to minimise or eliminate lateral components. By rethinking the relationship between combustion pressure, connecting rod geometry, and piston motion, KunwarMotors has created an architecture where force is transmitted more directly, reducing side loading on cylinder walls to near zero.
Section 03
The elimination of lateral piston force delivers multiple cascading benefits: reduced cylinder wall wear means longer engine life, lower friction means better mechanical efficiency, less vibration means smoother operation, lighter piston and cylinder designs become possible reducing overall engine weight by ~20%, and reduced lubrication requirements lower operating costs.
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