초록 ▼

A silencer is disclosed comprising an external case (1) formed by assembling together a first case element (14) and a second case element (15) each formed of a continuous wall comprising a tubular axial portion and an end radial portion (3, 4). The elements (14, 15) are obtained by deep drawing. The

A silencer is disclosed comprising an external case (1) formed by assembling together a first case element (14) and a second case element (15) each formed of a continuous wall comprising a tubular axial portion and an end radial portion (3, 4). The elements (14, 15) are obtained by deep drawing. They are assembled axially together by peripheral welding on the intermediate peripheral connecting zone (30) formed by their two edges (17, 32) applied against each other and bearing on an inner support piece (13).

대표청구항 ▼

An exhaust silencer for transferring exhaust gases from an inlet tube to an outlet tube, comprising an outer case forming a closed enclosure defined by an axial peripheral sidewall developed along a longitudinal axis and first and second transverse end walls, the case being pierced with at least one

An exhaust silencer for transferring exhaust gases from an inlet tube to an outlet tube, comprising an outer case forming a closed enclosure defined by an axial peripheral sidewall developed along a longitudinal axis and first and second transverse end walls, the case being pierced with at least one inlet orifice and one outlet orifice respectively for the inlet and outlet of the exhaust gases and adapted for connection of an inlet tube and an outlet tube, the case containing means for the expansion of the exhaust gases and conduction thereof between the inlet and outlet orifices, the case comprising: at least a first case element formed of a continuous wall comprising a first tubular axial portion forming a portion of said axial peripheral sidewall between a first end and a second end of the first tubular axial portion, the axial portion being limited at its first end by a first free annular edge and being connected at its second end to a radial portion forming said first transverse end wall, at least a second case element, formed of a continuous wall comprising a second tubular axial portion forming a portion of said axial peripheral sidewall, the axial portion being defined at its first end by a second free annular edge and being connected at its second end to a radial portion forming a transverse wall, the first and second free annular edges of the respective first and second case elements being configured similarly, said first and second case elements being assembled axially together in opposition, along an intermediate peripheral annular connection zone formed by said first and second edges applied axially together edge to edge, said case elements being joined together sealingly along the peripheral annular connection zone, in line with the intermediate radial annular connection zone, an inner piece with cylindrical peripheral surface forming a connecting support against which bear simultaneously two inner faces of the tubular axial portions of the first and second case elements.