| 摘要 |
The invention relates to a device (1, 1', 1'', 1''') for lowering flow noises, comprising a first connection piece (2, 2', 2'', 2'''), a second connection piece (3, 3', 3'', 3''') facing away from the first connection piece, an outer sleeve (4, 4', 4'', 4''') arranged between the first connection piece (2, 2', 2'', 2''') and the second connection piece (3, 3', 3'', 3'''), and an inner sleeve (5, 5', 5'', 5''') arranged between the connection pieces (2, 2', 2'', 2''', 3, 3', 3'', 3'''), wherein at least two volume chambers (7, 7', 8, 8', 8'', 9, 9', 10, 10', 10''') separated from each other by at least one peripherally extending radial collar (6, 6', 6'', 6''') are arranged between the inner sleeve (5, 5', 5'', 5''') and the outer sleeve (4, 4', 4'', 4'''), which volume chambers are connected to the line space (13, 13'''') enclosed by the inner sleeve (5, 5', 5'', 5''') by means of openings (11) in the wall (12) of the inner sleeve (5, 5', 5'', 5'''), wherein the radial collar (6, 6', 6'', 6''') has a sealing ring (15, 15', 15'', 15''', 15'''', 27, 27') composed of an elastomer at the free end (14, 14') of the radial collar. The invention is characterized in that the sealing ring (15, 15', 15'', 15''', 15'''', 27, 27') has at least one elastic sealing lip (21, 21', 21'', 21''', 21'''', 28, 28', 29, 29') leading away from the radial collar (6, 6', 6'', 6''') at an angle, which at least one elastic sealing lip lies against the wall of the adjacent sleeve (4, 4', 4'', 4''', 5, 5', 5'', 5''') under load in a sealing manner by means of the free end (22, 22', 22''', 22'''', 30, 30', 31, 31'). |
