Sound-deadening duct for aeriform fluids (11) comprising a hollow body (13) in which a side wall (15) and at least two axial openings (17, 19), for the inlet and outlet of air, respectively, are defined, wherein said side wall is provided with at least one...

A filtering device (1) having a casing (4), a filter cartridge (3) housed in fluidtight manner inside the casing (4), an air inlet (6) and air outlet (7) formed in one piece with the casing (4), and respective air pipes (26, 27) connected removably to the ...

A variable-geometry resonator (4) for silencing an air intake system (1) of a vehicle engine, wherein a closed, axially symmetrical casing (8) has two couplings (10,15) communicating hydraulically with the outside, and is divided internally into two variab...

Low-noise integrated air-filtering device, including a casing (2), which has an inlet pipe (3) and an outlet pipe (4), and a filter element (5), which is set inside said casing (2). The integrated device is further provided with a silencer device (7) inclu...

The device comprises a casing (2) forming internal cavity (3) containing plurality of rectilinear axially staggered ribs (10) forming longitudinal separating diaphragms. The casing is formed by first and second longitudinal portions (7,9). The casing has a...