초록 ▼

A controllable vibration apparatus having an electrical connection to a controllable valve made through a single-strand electrical conductor. In one embodiment, the piston and rod are preferably used as the source of ground or return electrical path. An axially compressed sealing element provides ra

A controllable vibration apparatus having an electrical connection to a controllable valve made through a single-strand electrical conductor. In one embodiment, the piston and rod are preferably used as the source of ground or return electrical path. An axially compressed sealing element provides radial sealing against the conductor. An accumulator including a flexible diaphragm provides separation of fluid and accumulator chambers. In magnetorheological (MR) fluid dampers, a special sealing system including a relationship between piston rod surface finish and particle size is provided. A surface treated metal bushing is used with a lip seal to prevent escape of fluid and support side loads. The controllable valve can be formed from top and bottom pole pieces spaced from an outer ring to define a passageway. The pole and ring are preferably secured together by non-magnetic bridging elements. Preferably, the coil assembly is configured with integral axially-extending pins for ease of connection. Push-on connectors preferably make the connection between the conductor and pins. In a two single-strand conductor version, one single-strand carries the incoming current and the other the outgoing current.

대표청구항 ▼

[ What is claimed is:] [1.] In a controllable vibration device having a body defining an internal cavity, a piston cooperating with said internal cavity, means subdividing said internal cavity into an upper chamber and a lower chamber, a fluid contained within said upper and lower chambers, an elect

[ What is claimed is:] [1.] In a controllable vibration device having a body defining an internal cavity, a piston cooperating with said internal cavity, means subdividing said internal cavity into an upper chamber and a lower chamber, a fluid contained within said upper and lower chambers, an electrically-controllable member controlling flow of said fluid in a fluid passage between said upper and lower chambers, the improvement comprising:(a) circuit means for carrying a high-potential electrical current to said electrically-controllable member, said circuit means including a single-strand electrical conductor passing into said internal cavity,(b) means for completing said circuit means to a low-potential(c) a flexible sealing element closely surrounding said single-strand electrical wire, and(d) means for axially compressing said flexible sealing element such that said flexible sealing element radially expands into sealing engagement with said single-strand electrical conductor.