Silencer for motor cycle engine - having end tapered by swaging with installations welded into position (NL091176)

摘要

The silencer for a motor cycle I.C. engine comprises a pipe-like housing (1) which contains internal installations (6) and which consists of at least one pipe (2) at least one end (3, 5) of which is tapered by swaging. At one or both ends is a pipe connecting (4) of which the cross-section is formed by swaging. The installations in the silencer may be inserted at one end prior to deformation of this end, are fixed in position by resistance welding or fusion welding, and are readily accessible in the above arrangement. The pipe may be of cylindrical, oval or any other cross-section, and may consist of two or more pipe sections, Swaging is carried out with or without a mandrel by cold or hot deformation, allowing flawless manufacture of the openings with angles of up to 45 deg.