Title:
VIBRATION AND NOISE DAMPER
Document Type and Number:
WIPO Patent Application WO/2016/058562
Kind Code:
A8
Abstract:
A vibration and noise damper for wheels of rail vehicles, to which wheels it is fastened with screws, pins, or rivets, which comprises of at least two segments formed by a supporting part (2) for gripping to the wheel (1), a pushing part (3) and a damping part (4), where the pushing part (3) is connected by means of bolts (9) with the supporting part (2) and is formed either by a single metal or composite element, or it is directly integral part of the damping part (4) and where the damping part (4) is formed in the direction away from the wheel (1) rim of a strain pliable metal or composite layer (4a), of a viscoelastic layer (4b), and possibly of other metal or composite layer (4c), wherein in compressed state the damping part (4) is placed between the pushing part (3) and the wheel (1) rim. Preferably, the supporting part (2) is formed of metal or composite material. Also preferable is the embodiment when thermally insulating pads (5) are arranged between the supporting part (2) and the wheel (1) and/or between the fastening material for attaching the supporting part (2) to the wheel (1) and the wheel (1). The viscoelastic layer (4b) in the damping part (4) can comprise glass fibres and/or ceramic fibres and can be provided with a set of holes (4d) and/or radial cuts (4e) of various shape, wherein their number, size and arrangement are different for individual designs of the dampers in relevance to their shape.
Inventors:
BOHÁČ TOMÁŠ (CZ)
FIRCZYK MAREK (CZ)
TAŠEK HUBERT (CZ)
FIRCZYK MAREK (CZ)
TAŠEK HUBERT (CZ)
Application Number:
PCT/CZ2014/000116
Publication Date:
July 14, 2016
Filing Date:
October 17, 2014
Export Citation:
Assignee:
BONATRANS GROUP A S (CZ)
International Classes:
F16F15/32; B60B17/00; F16F15/34
Attorney, Agent or Firm:
PATENTSERVIS PRAHA A.S. (Praha 4, CZ)
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