METHOD OF ENHANCING SEALING CAPACITY OF SEPARATOR Russian patent published in 1998 - IPC

FIELD: pipe line transport. SUBSTANCE: separator is formed in course of interaction of agents in form of rubber-like jelly-like mass equidistant relative to surface of chamber at diameter exceeding the inner diameter of pipe line $$$ and length L=(2-10) $$$; then elastic deformation state is created in manufacture of separator at preset relative deformation coefficient K over diameter $$$ within 0.01 to 0.5. Separator is formed at varying elastic deformation characteristic lengthwise; maximum elastic deformation properties are ensure in head and tail portion, minimum properties being created in center portion. Tail portion is formed as concave contour of smooth quadratic curve, for example, in form of segment having height of $$$. Besides that, coefficient of friction between surfaces of pipe lines and flexible separator is reduced by at least 2 or 3 times. EFFECT: reduction of friction coefficient. 3 cl, 1 dwg