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US 6,601,835 B2Granted
Hydraulic antivibration support
AssigneeHutchinson
InventorAndré Genesseaux
Life of this patent
Estimating the term…
Abstract
The hydraulic antivibration support comprises two strength members interconnected by an elastomer body defining part of a liquid-filled working chamber which communicates via a constricted passage with a compensation chamber that is separated from said working chamber by a rigid partition. The compensation chamber is defined by an annular bellows presenting an annular fold which projects into the compensation chamber and which is of a shape that does not present circular symmetry.
Claims10
A hydraulic antivibration support for interconnecting first and second rigid elements to damp vibration between said elements, the support comprising:
- first and second rigid strength members for fixing respectively to the first and second rigid elements;
- an elastomer body interconnecting the first and second strength members;
- a hydraulic working chamber filled with liquid, and defined at least in part by the elastomer body;
- and
- a flexible bellows of elastomer material defining at least part of a hydraulic compensation chamber filled with liquid which communicates with said working chamber via a constricted passage, said bellows presenting a central portion secured to a member carried by the second strength member and a periphery secured to said second strength member, and said bellows presenting a fold of generally annular shape centered on the central axis and projecting into the compensation chamber around said central portion of the bellows over a certain height up to a ridge of generally annular shape,
- wherein the fold presents a shape that is not circularly symmetrical about the central axis, and wherein the fold presents locally at least one depression having a concave side facing towards the compensation chamber.
3 more elements
Dependencies are inferred from the claim text.