Patent ID: 9587704
Date: 2017-03-07
CPC Classifications: F16F

Claim:
1. A system for managing noise and vibration in a vehicle comprising: a housing defining an internal cavity; a first compliant member attached to the housing and further defining the internal cavity; a magnet having a magnetic field; a coil; wherein one of the magnet and the coil is operatively fixed to the housing in the cavity; wherein the other of the magnet and the coil is positioned in the cavity and is configured to move relative to the one of the magnet and the coil in response to movement of the first compliant member relative to the housing; a resistor in electrical communication with the coil to form an electrical circuit; relative movement of said other of the magnet and the coil inducing a current in the circuit that creates an opposing magnetic field; a diaphragm operatively connected to the coil and at least partially separating the internal cavity into a first portion and a second portion; wherein the first portion is between the first compliant member and the diaphragm and contains a first fluid, and the second portion contains the magnet, the coil, and the resistor; wherein forces acting on the first compliant member are transferred to the diaphragm by the first fluid to thereby move said one of the magnet and the coil relative to said other of the magnet and the coil; a hydraulic damper positioned in parallel with the diaphragm in the housing; wherein the hydraulic damper has: a second compliant member positioned in the second fluid cavity and operable to vary a volume of the second fluid cavity in response to flow of the first fluid through the passage.