Variable Gap Control Valve for Engine Coolant Circuits

The patent applies the dynamics principle by making the gap between the valve element and valve housing variable rather than constant. The gap changes dynamically based on the valve element position: it is smaller when sealing is needed and larger when fluid flow is required. This dynamic adjustment allows the sealing element to lift off during flow operations, reducing friction losses while maintaining sealing reliability when contact is needed.

The patent implements parameter changes by varying the gap dimension between the valve element surface and valve housing. By changing this geometric parameter based on operational requirements, the system achieves low friction during flow (larger gap) and reliable sealing during closed positions (smaller gap), thus resolving the contradiction between sealing reliability and energy loss.

The variable gap design allows the system to dynamically adjust the distance between sealing surfaces. During fluid flow operations, the larger gap reduces frictional torques and energy losses. During positioning operations where sealing is required, the gap automatically decreases, ensuring reliable contact between the sealing element and valve element surface. This dynamic behavior resolves the contradiction by adapting the gap size to operational needs.

The system exhibits periodic action through the cyclic variation of the gap size corresponding to the valve element movement between different positions. As the valve element moves, the gap periodically changes from small (sealing phase) to large (flow phase) and back, creating a rhythmic pattern that alternates between sealing and low-friction states, thus resolving the contradiction over the working cycle.