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Hydrodynamic seal
Type of mechanical seal From Wikipedia, the free encyclopedia
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A hydrodynamic seal is a type of mechanical seal. A hydrodynamic seal uses a dynamic rotor with grooves that act as a pump and create an air film that the opposing sealing surface will ride on. A hydrodynamic seal performs better than hydrostatic seals by providing greater film stiffness, lower leakage and lower lift off speeds. Hydrodynamic seals have a variety of applications in multiple industries. there are a large number of various groove designs that have been proposed and tested.
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Some types of hydrodynamic grooves include:
- Spiral Groove
- Wave
- V Grooves
- U Grooves
- Double V Grooves
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