FLUID DUCT WITH IMPROVED CONNECTING BEAD

摘要

A fluid duct has a plastic body with a forward cylindrical portion having an outer periphery and a rear cylindrical portion having an outer periphery. The forward and rear cylindrical portions are at equal radial distances from a center line of the duct. A bead is formed on an outer periphery of the duct body intermediate the forward and rear portions. The bead has a radially outermost distance measured perpendicularly away from the outer periphery of the forward portion. This is defined as a first distance. A second distance is defined between a forward end of the duct body to a rearmost end of the bead. The ratio of the first distance to the second distance is between 0.200 and 0.270.

主权项

1. A fluid duct comprising:
a plastic body having a forward cylindrical portion having an outer periphery, and a rear cylindrical portion having an outer periphery, said forward and rear cylindrical portions being at an equal radial distance from a center line of said fluid duct; a bead formed on an outer periphery of said duct body intermediate said forward and rear cylindrical portions, and said bead having a radially outermost distance measured perpendicularly away from said outer periphery of said forward cylindrical portion and defined as a first distance, and a second distance defined between a forward end of said duct body to a rearmost end of said bead, and a ratio of said first distance to said second distance being between 0.200 and 0.270; and a forward face of said bead is formed extending away from said forward cylindrical portion, and at a first radius of curvature, and a rear face of said bead merges into said rear cylindrical portion, with a second radius of curvature defined at a location where said bead merges into said rear cylindrical portion, and a ratio of said first radius of curvature to said second radius of curvature is between 2.1 and 4.8.