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Fluid-sealed vibration-damping device

A fluid and vibration isolation technology, applied in power plant, jet propulsion, internal combustion propulsion, etc., can solve the problem of abnormal noise and vibration of passengers

Inactive Publication Date: 2013-02-06
SUMITOMO RIKO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there may be abnormal noises and vibrations that can be felt by passengers in the vehicle interior.

Method used

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  • Fluid-sealed vibration-damping device
  • Fluid-sealed vibration-damping device
  • Fluid-sealed vibration-damping device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] In order to show the present invention more specifically and clearly, embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0060] first, figure 1 An automotive engine mount 10 is shown as a first embodiment of a fluid-filled vibration isolator having the structure of the present invention. The engine mount 10 has a structure in which a metal first mounting member 12 and a metal second mounting member 14 are connected to each other by a main body rubber elastic body 16 . Furthermore, by attaching the first mounting member 12 to the power plant as the main vibration system, and attaching the second mounting member 14 to the vehicle body, the power plant can be supported by vibration isolation of the vehicle body. In addition, in the following description, the up-down direction means in principle figure 1 in the up and down direction. in addition, figure 1 Indicates the state that the engine mount 10 is n...

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PUM

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Abstract

A fluid-filled type vibration damping device wherein a second mounting member is secured to a vehicle body; an opening of the second mounting member is closed off to define a pressure-receiving chamber a flexible film is arranged covering an outside of a main rubber elastic body to define an equilibrium chamber; a low-frequency orifice passage and a high-frequency orifice passage connect the pressure-receiving chamber and the equilibrium chamber a first moveable member is disposed on a fluid channel through the high-frequency orifice passage; the first moveable member being supported by a first support member that is linked to the second mounting member via the main rubber elastic body; and a fluid channel through the low-frequency orifice passage is situated away from the placement location of the first moveable member.

Description

technical field [0001] The present invention relates to a vibration isolation device used in engine mounts of automobiles, etc., especially a fluid-enclosed vibration isolation device capable of obtaining vibration isolation effects by utilizing the flow action of a non-compressible fluid enclosed inside . Background technique [0002] Conventionally, there is a fluid-filled type vibration isolator that is used, for example, in an engine mount that supports a power unit in an automobile using vibration isolation of a vehicle body. The fluid-enclosed vibration isolator has a structure in which a first mounting member mounted on a main vibration system and a second mounting member mounted on a vehicle body are connected to each other by a rubber elastic body of a main body. In addition, as one type of fluid-enclosed vibration isolator, there is also known a device in which a pressure-receiving chamber and a balance chamber are formed. The main body rubber elastic body constit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F13/18B60K5/12
CPCF16F13/18F16F13/107
Inventor 金谷知宏滨田真彰大西将博
Owner SUMITOMO RIKO CO LTD