Patent
Liquid sealed vibrooisolating device
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TLDR
In this paper, the authors proposed to improve the damping action of low frequency-large amplitude vibration and the absorption of high frequency-small amplitude vibration by constituting one of the two fluid chambers in the device with a bellows further having a weight member and the other one with an elastic body thin film partially in its wall side.Abstract:
PURPOSE:To improve the damping action of low frequency-large amplitude vibration and the absorption of high frequency-small amplitude vibration in the above described device used for supporting a vehicle engine, by constituting one of the two fluid chambers in the device with a bellows further having a weight member and the other one of the chambers with an elastic body thin film partially in its wall side CONSTITUTION:The vibration of low frequency-large amplitude acted between support parts 1, 4 causes a deformation in an engine support member 8, then fluid flows from the first fluid chamber 9a into the second fluid chamber 9b to damp the vibration Here because the fluid chamber 9b is constituted by a bellows 7 into which a weight member 70 is buried, a large amount of fluid can flow into the chamber to obtain a good effect of damping operation in cooperation with the inertia force of the weight member 70 While the vibration of high frequency-small amplitude is absorbed by both the support member 1 and a thin film part 81, and the fluid is never circulated through a throttling hole 6 In this way, performances for damping the vibration of low frequency-large amplitude and absorbing the vibration of high frequency-small amplitude can be improvedread more
Citations
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PatentDOI
Vibration isolating apparatus
TL;DR: In this paper, the electric field applied to the electrorheological fluid undergoes a change as the amount of electric current supplied to the electrode plates is changed, thereby changing the viscosity of the fluid in the orifice passage.
PatentDOI
Two-chamber engine mount with hydraulic damping
Rainer Dr. Andrä,Manfred Hofmann +1 more
TL;DR: In this article, a two-chamber engine mount with hydraulic damping is described, which includes a housing, an intermediate plate disposed in the housing dividing the housing into an upper chamber above the intermediate plate and a lower chamber below, with a damping opening formed therein hydraulically interconnecting the chambers for preventing a hydraulic response upon the occurrence of high frequency and low amplitude vibrations.
PatentDOI
Vibration isolating apparatus
Takao Ushijima,Takeshi Noguchi +1 more
TL;DR: In this paper, a vibration isolating apparatus for interposing between a vibration generating portion and a vibration receiving portion includes a main body which has a portion constituted by a resilient menber and encloses a liquid chamber (26A, 268) which is capable of being expanded and contracted.
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TL;DR: In this article, a two-chamber engine mount with hydraulic damping includes a housing having rubber-elastic peripheral walls and an engine side to be connected to an engine, an intermediate plate dividing the housing into fluid-filled chambers being in communication with each other through a penetration formed in the intermediate plate, and an active vibration generator being integrated into one of the fluidfilled chambers closest to the engine side and being controllable in dependence on predetermined operating parameters.
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Anti-vibration apparatus
Kazuya Takano,Takeshi Noguchi +1 more
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