An intake valve for a combustion engine having an intake port is disclosed. The rotor set includes an outer rotor with teeth having a composite profile formed over the portion adjacent their root to conform to a circular arc and formed over the portion adjacent their tip to conform to a hypocycloid arc. Adequate rinsing performance can be achieved even in a region with different water pressure. Since provisioning resources are themselves dynamically built and automatically associated with the resources being managed, a dramatically reduced management overhead is achieved.