公开(公告)号：US11976690B2

公开(公告)日：2024-05-07

申请号：US17765178

申请日：2020-09-29

申请人： Bifröst Research and Development B.V.

发明人： Stefan George Emile Lampaert ,  Ronald Adrianus Johannes Van Ostayen ,  Maarten Cornelis De Graaf

IPC分类号： F16C33/74 ,  C10M171/00 ,  F16C17/02 ,  F16C32/06 ,  F16C33/10 ,  C10N20/06 ,  C10N30/00 ,  C10N40/02 ,  C10N40/14 ,  C10N40/18

CPC分类号： F16C33/746 ,  C10M171/001 ,  F16C17/02 ,  F16C32/0637 ,  F16C33/109 ,  C10N2020/06 ,  C10N2030/60 ,  C10N2040/02 ,  C10N2040/14 ,  C10N2040/18

摘要： A bearing device with first and second bearing surfaces facing each other and which are moveable relative to one another. The first and second bearing surfaces are separated by a bearing gap filled with a lubricant. The lubricant comprises a carrier fluid and particles which respond to magnetic or electric fields. The particles are suspended in the carrier fluid in the absence of magnetic or electric fields. One or more magnetic or electric field generators are embedded in the first or second bearing surface to generate a localized magnetic or electric field which locally removes the particles from suspension by exerting a field force on the particles. This forms a local flow obstruction on at least one of the bearing surfaces in the form of an agglomerate of previously suspended particles. The local flow obstruction locally obstructs a flow of the lubricant.

公开(公告)号：US11261912B2

公开(公告)日：2022-03-01

申请号：US16614285

申请日：2018-05-18

申请人： Bifröst Research and Development B.V.

发明人： Stefan George Emile Lampaert ,  Ronald Adrianus Johannes Van Ostayen

IPC分类号： F16C33/10 ,  F16C17/02 ,  F16C17/04

摘要： The invention relates to a bearing device comprising a first surface and a second surface which are moveable relative to one another, wherein the first and second surfaces are separated by a bearing gap filled with a lubricant, which is a magnetorheological or electrorheological liquid, or a lubricant having a temperature dependent viscosity, or a lubricant having a controllable slip velocity. The bearing device further comprising one or more supply inlets in the first or second surface, and one or more activators embedded in the first surface or second surface and configured to locally increase a viscosity or decrease the slip velocity of the lubricant in at least one obstruction zone, thereby inhibiting a flow of the lubricant in the obstruction zone.