NAGAENKEIJUYOBUHENOENKEIKINZOKUKANNOATSURYOKUBAMERENSETSU

摘要

A connection between a circular cylindrical tube and a plate or sleeve includes a housing extending along an axis from an inlet opening in a surface of the plate or sleeve and a circular cylindrical tube having an end fittable in the housing. The housing includes a first cylindrical truncated cone extending to the inlet opening and having a vertex angle beta with respect to the axis of between 5 DEG and 20 DEG , and a second oval truncated cone coaxial with the first cone and connected thereto. The second cone has generatrices forming an angle alpha of between 0.5 DEG and 5 DEG with respect to the axis.