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1. (WO2017021298) DEVICE FOR LOWERING FLOW NOISES

Pub. No.:    WO/2017/021298    International Application No.:    PCT/EP2016/068159
Publication Date: Fri Feb 10 00:59:59 CET 2017 International Filing Date: Sat Jul 30 01:59:59 CEST 2016
IPC: F16L 55/027
F02M 35/12
F16L 55/033
Applicants: UMFOTEC GMBH
DENKER, Dietrich
Inventors: BUCK, Ralf
HEUER, Michael
NAGEL, Dirk
TRÖGER, Philipp
LÜBBE, Norbert
Title: DEVICE FOR LOWERING FLOW NOISES
Abstract:
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').