Detachable Joint Sealing Based on Leakage Duct Hydraulic Resistance

Abstract

The types of detachable fixed joints with elastic and plastic sealing are considered, their disadvantages are indicated. A new design of the sealing unit for fixed and movable joints is presented, eliminating these disadvantages. The tightness of the structure is ensured by increasing the hydraulic resistance of the leakage channel of the sealed medium, which has a cross-section in the form of an equilateral triangle. The channel is spirally placed in the contact zone of the sealing surfaces, the inlet and outlet of which are located along the inner and outer diameters of the mating surfaces, respectively. Expressions for calculation of the proposed type of joints for real conditions of its use are presented.