Hutchinson

Daniel Le Guillant

Pierre Jouade

Jean-Pierre Bretaudeau

Francois Bodin

Paul Schwartz

Paul Mellon

Hydraulic antivibration mounting

The sleeve comprises two tubular rigid strength members (4,5) where one surrounds the other and where they are united by an elastomer body (6) shaped so as to co-operate therewith to form two sealed cavities (7,8) that communicate with each other via a narrow channel (9), the cavities and the channel being completely filled in a liquid, the portion of the elastomer body that defines at least one of the cavities having a generally U-shaped or V-shaped axial section that is outwardly open in a radial direction, and the narrow channel extending along an arc of a circle disposed at an axial end of the sleeve, close to its outer strength member (5). The outer strength member forms an integral portion of a rigid connection arm (11), and the narrow channel is defined in part by a radial flange (16) of a cage (15) received in the outer strength member.

Hydraulic antivibration support sleeves

The invention relates to an antivibration support to be inserted between the frame and the engine of a vehicle. The support comprises two deformable chambers filled with liquid, separated by a deformable partition, and communicating with one another through a restricted passage, namely an operating chamber whose lateral wall forms a support and joins two rigid parts fixed respectively to the frame and to the engine, and a compensating chamber. When abnormally high thrusts are applied to the engine, the deformations of the wall are limited by abutment, against a ring immersed in the operating chamber and borne by the first rigid part, of a central foot fast to the second rigid part, and passing with clearance through the ring and/or of an overlapping sole terminating this foot.

Hydraulic antivibration support

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Chateaudun, France

Daniel Le Guillant