Design of Mechanical Oil Seal and Gasket

摘要

The leakage of fluids in mechanical systems (hydraulic and lubricating systems) are undesirable and its direct consequences include industrial downtime, reduced product quality, environmental pollution, fire hazards etc. The prevention of leakage minimizes the equipment maintenance cost and prevents hazardous accidents. The seals are tribological elements that are used for closing the unintentional openings or gaps between the jointed members. They provide a physical barrier that produces a joint which prevents leakage and withhold fluid under pressure. The critical of the seal types are contact seal which operates with rubbing contact against its mating surface under positive pressure. The gaskets are used to provide sealing of mating flanges of a mechanical joint which does not involves any gross relative motion. Any improper selection or design of the seal and gasket may result in its failure in form of leakages, pressure losses, contamination or heat generation that causes reduced efficiencies, energy losses, degraded performance and possibly environmental pollution. The present paper describes the design of an oil seal and gasket.