摘要:
The invention relates to a device (1, 1', 1'') for lowering flow noises, comprising a first connection piece (2, 2'), a second connection piece (3, 3') facing away from the first connection piece (2, 2'), an outer sleeve (4, 4') arranged between the first connection piece (2, 2') and the second connection piece (3, 3'), and an inner sleeve (5, 5') arranged between the connection pieces (2, 2', 3, 3'), wherein at least two volume chambers (7, 7', 8, 8', 9, 9', 10, 10') separated from each other by at least one peripherally extending radial collar (6, 6') are arranged between the inner sleeve (5, 5') and the outer sleeve (4, 4'), which volume chambers are connected to the line space (13, 13') enclosed by the inner sleeve (5, 5') by means of openings (11, 11') in the wall (12, 12') of the inner sleeve (5, 5'), wherein the radial collar (6, 6') has a sealing ring (15, 15', 15'') at the free end (14, 14') of the radial collar. The invention is characterized in that the sealing ring (15, 15', 15'') is designed as a ring cap, which reaches over the collar (6, 6') and lies against a wall surface (22, 35) of the sleeve (4, 4', 5, 5') adjacent to the free end (14, 14') of the collar (6, 6') in a sealing manner by means of a peripherally extending outer lateral surface (21, 21'') of the ring cap and against the end face (25, 25') of the free end (14, 14') of the collar (6, 6') in a sealing manner by means of the inner lateral surface (23, 23'') of the sealing ring facing away from the outer lateral surface (21, 21'') or lies against the side surface (28) of the collar (6, 6') facing the ring cap in a sealing manner by means of an annular radial contact surface (26, 26'') extending parallel to the radial collar (6, 6').
摘要:
The invention relates to a disc damper for a charge air line of an internal combustion engine (24) having a turbocharger (20), comprising an inlet (26), an outlet (28), and at least one slit chamber (38) disposed between the inlet (26) and outlet (28). Starting from the inlet (26), at least two gap chambers are provided downstream of the slit chamber (38) and disposed axially one after the other. At least one of the following features is fulfilled: a) the slit chamber (38) comprises a radial inner dimension (56) that changes in the circumferential direction and/or b) the slit chamber (38) comprises axial inner dimensions (58) that change in the circumferential direction, and/or at least one gap chamber comprises radial inner dimensions (56, 70) that change in the circumferential direction.
摘要:
The invention relates to a resonator (1, 11'') for reducing airborne noise, having at least one first ring-shaped chamber (2, 2', 2'') arranged between an inlet piece (6, 6') and an outlet piece (7, 7'), and having an inner tube (3) or inner tube pieces (4, 4'', 5) arranged between the inlet piece (6, 6') and outlet piece (7, 7'), and having wall apertures (18, 19, 28, 28'', 29, 29'', 30, 30'') as a connection to the adjacent ring-shaped chamber (2, 2', 2''). The invention is characterized in that the first ring-shaped chamber (2, 2', 2'') is divided by at least one radially encircling dividing rib (13, 13', 13'') into at least two sub-chambers (14, 14', 14'', 15, 15', 15''), and in that the dividing rib (13, 13', 13'') has a free end which, relative to the wall which is adjacent in a radial direction, forms an encircling ring-shaped gap (16) for receiving an air layer which resonates in steady-state fashion.
摘要:
The invention relates to a resonator (1) for lowering airborne sound and solid-borne sound, comprising at least two annular chambers (2, 3, 17) arranged between an inlet piece (22) and an outlet piece (21) and comprising an inner pipe (4), which is arranged at least between the inlet piece (22) and the outlet piece (21) and which has wall holes (23) as a connection to the adjacent annular chambers (2, 3, 17). The invention is characterized in that a first annular chamber (2) has a U-shaped circumferential wall (6) coaxial to the resonator longitudinal axis (5), which U-shaped circumferential wall transitions at both ends into cylindrical end pieces (7, 8) for accommodating the inner pipe (4), and that at least one second annular chamber (3) has an L-shaped circumferential wall (12) coaxial to the resonator longitudinal axis (5), which L-shaped circumferential wall transitions into a cylindrical end piece (13) at the end of the L-shaped circumferential wall facing away from the first annular chamber (2) and which L-shaped circumferential wall lies on the part of the outer wall (9) of the first annular chamber (2) extending parallel to the resonator longitudinal axis (5) at the end (14) of the L-shaped circumferential wall facing the first annular chamber (2).
摘要:
Die Erfindung bezieht sich auf eine Vorrichtung (1) zur Absenkung von Strömungsgeräuschen, umfassend ein erstes Anschlussstück (2), ein dem ersten Anschlussstück (2) abgewandtes zweites Anschlussstück (3), eine zwischen dem ersten Anschlussstück (2) und dem zweiten Anschlussstück (3) angeordnete Außenhülse (4), und eine zwischen den Anschlussstücken (2, 3) angeordnete Innenhülse (5), wobei zwischen der Innenhülse (5) und der Außenhülse (4) mindestens zwei durch mindestens einen umlaufenden radialen Kragen (6) voneinander getrennte Volumenkammern (7, 8, 9, 10) angeordnet sind, die über Öffnungen (11) in der Wandung (12) der Innenhülse (5) mit dem von der Innenhülse (5) umschlossenen Leitungsraum (13) in Verbindung stehen, wobei der radiale Kragen (6) an seinem freien Ende (14) einen Dichtring (15) aufweist, der als eine den Kragen (6) übergreifende federnde Ringkappe ausgebildet ist, die mit einer umlaufenden äußeren Mantelfläche (21) eines Mantels (24) an der dem freien Ende des Kragens (6) benachbarten Wandungsfläche (22) der Hülse (4, 5) unter Spannung dichtend anliegt, und wobei der Dichtring (15) mit einer parallel zum radialen Kragen (6) verlaufenden ringförmigen, radialen Anlagefläche (26) einer Ringwandung (27), die in den Mantel (24) der Ringkappe übergeht, an eine der Ringwandung (27) zugewandte, erste Seitenfläche (28) des Kragens (6) unter Spannung dichtend anschlägt. Die Erfindung zeichnet sich dadurch aus, dass der Dichtring (15) an seinem von den Mantelflächen (21, 23) gebildeten Mantel (24) an dem der radialen Anlagefläche (26) abgewandten Ende eine Mehrzahl von Klammerprofilen (29, 30) aufweist, die im montierten Zustand an der der ersten Seitenfläche (28) abgewandten, zweiten Seitenfläche (36) des Kragens (6) unter Spannung anliegen und durch die die Anlagefläche (26) der Ringkappe mit entsprechender Spannung gegen die der Anlagefläche (26) zugewandte, erste Seitenfläche (28) gespannt ist.