Patent ID: 6070862
Filing Date: 2000-06-06
Classification: F16F

Abstract:
A liquid-encapsulated bushing comprising:an outer sleeve;an inner sleeve having an axis parallel to an axis of the outer sleeve;at least one elastomeric member disposed between said outer and inner sleeves; anda plurality of liquid chambers defined to face said at least one elastomeric member and to communicate with one another through orifices, so that a radial relative movement of said outer and inner sleeves is buffered by a resistance due to a liquid passing through said orifices, wherein said plurality of liquid chambers includes a) main liquid chambers whose volume is increased or decreased when a large radial load is input between said outer and inner sleeves, and b) subsidiary liquid chambers which are located on opposite sides of the main liquid chambers and which are circumferentially connected to said main liquid chambers and whose volume is increased and decreased when a circumferential load is applied in addition to the large radial load, and wherein said orifices include orifices which permit said main and subsidiary liquid chambers to communicate with each other, wherein said at least one elastomeric member include spaces defined therein, each said space interposed a) between said inner sleeve and one of the main liquid chambers and b) between said inner sleeve and the subsidiary liquid chambers and wherein the subsidiary liquid chambers are located adjacent opposite ends of each space.