Sound reducer, method of making same, and fluid conduit system including such a sound reducer

A sound reducer (10), comprising:

• a housing (14) formed by first and second axial half-shells (14a, 14b), the first axial half-shell (14a) having a first end wall (143) and a first side wall extending from the first end wall (143), the second axial half-shell (14b) having a second end wall (143) and a second side wall extending from the second end wall (143), ends of the first and second side walls remote from the respective first and second end walls (143) being connected to one another so that the first and second side walls form a mantle (142) extending between the first and second end walls (143) and defining a single interior space (141) inward of the first and second axial half-shells (14a, 14b), a first passage (18a) passing through a portion of the mantle (142) formed by the first axial half-shell (14a) and adjacent the first end wall (143), and a second passage (18b) passing eccentrically through the second end wall (143) al a position adjacent the mantle (143);
• and
• a main tube (12) extending through the interior space (141) and having a first end (121), a second end (122), and windows (22) formed as tube wall openings within the interior space (141), the main tube (12) being curved in a main plane so that the first end (121) of the main tube (12) is fixed in or at the first passage (18a) passing through the mantle (142) and the second end (122) of the main tube (12) is fixed in or at the second passage (18b) passing through the second end wall (143), wherein
• the first and second axial half-shells (14a, 14b) are shaped identically except for relative positions of the first and second passages (18a, 18b).

A sound reducer (10), composing:

• a housing (14) formed by first and second axial half-shells (14a, 14b), the first axial half-shell (14a) having a first end wall (143) and a first side wall extending from the first end wall (143), the second axial half-shell (14b) having a second end wall (143) and a second side wall extending from the second end wall (143), ends of the first and second side walls remote from the respective first and second end walls (143) being connected to one another so that the first and second side walls form a mantle (142) extending between the first and second end walls (143) and defining a single interior space (141) inward of the first and second axial half-shells (14a, 14b), a first passage (18a) passing through a portion of the mantle (142) formed by the first axial hall-shell (14a), and a second passage (18b) passing eccentrically through the second end wall (143);
• and
• a main tube (12) extending through the interior space (141) and having a first end (121), a second end (122), and windows (22) formed as tube wall openings within the interior space (141), the main tube (12) being curved in a main plane so that the first end (121) of the main tube (12) is fixed in or at the first passage (18a) passing through the mantle (142) a d the second end (122) of the main tube (12) is fixed in or at the second passage (18b) passing through the second end wall (143), wherein
• the first and second axial half-shells (14a, 14b) are shaped identically except for relative positions of the first and se s (18a, 18b), and the second passage (18b) is adjacent a longitudinal side of the mantle (142) opposite a longitudinal side of the mantle (142) through which the first passage (18a) extends.