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Fluid-filled vibration damping device

A vibration isolation and fluid technology, applied to shock absorbers, shock absorber-spring combinations, springs, etc., can solve problems such as difficult to quickly change the size of the gap, fluid inflow or outflow resistance, etc., to achieve easy management and improve Effect of improving reliability and durability

Active Publication Date: 2011-11-16
SUMITOMO RIKO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this operation, in order to cause relative displacement of the facing surfaces arranged with a small gap, the phenomenon of fluid flowing into or flowing out between the facing surfaces correspondingly occurs, so that it cannot Avoid the inflow or outflow of the fluid to form a large resistance
Therefore, it is difficult to quickly change the size of the gap between the facing surfaces, and there are problems in ensuring the response speed and driving force

Method used

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  • Fluid-filled vibration damping device
  • Fluid-filled vibration damping device
  • Fluid-filled vibration damping device

Examples

Experimental program
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Embodiment Construction

[0073] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0074] first, figure 1 An automobile engine mount 10 as a first embodiment of the fluid-filled vibration isolator of the present invention is shown. This engine mount 10 has a structure in which a first mounting member 12 and a second mounting member 14 are arranged to face apart from each other, and the main body rubber is interposed between the first mounting member 12 and the second mounting member 14 . The elastic body 16 is elastically connected to form a bracket body 18 embedded in the bracket 20 . In addition, in the engine mount 10, the first mounting member 12 is mounted on a power unit (not shown), and the second mounting member 14 is mounted on a vehicle body (not shown), so that the power unit is vibration-isolated and supported on the vehicle body. . In addition, in the mounting state as described above, in this engine mount 10, the load sharing of the p...

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PUM

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Abstract

Disclosed is a fluid-filled vibration damping device that is provided with a first liquid chamber and a second liquid chamber, inside each of which is sealed a non-compressible fluid, and to which relative pressure fluctuations are applied when vibration is input. An orifice passageway that connects the first and second liquid chambers to each other is also provided. The device is able to achieve effective vibration damping effects against multiple kinds of vibrations of differing frequencies with greater reliability and durability. Modification of the tuning frequency of the orifice passageway (68) is accomplished by adjusting how far the inner orifice member (36) enters into the outer orifice member (48) to modify the length of the orifice passageway (68).

Description

technical field [0001] The present invention relates to a vibration isolating device such as an engine mount, and more particularly to a fluid-enclosed vibration isolating device capable of obtaining a vibration isolating effect by utilizing the flow action of an incompressible fluid sealed inside. Background technique [0002] Conventionally, there is known a vibration isolator that is interposed between members constituting a vibration transmission system and that connects or supports the members in vibration isolation between them. For example, an engine mount or the like that supports a power unit for an automobile in a vibration-isolated manner on a vehicle body is such a vibration-isolating device. [0003] In addition, an engine mount for an automobile is required to have high vibration isolation performance in order to improve ride comfort. In response to this demand, a fluid-enclosed type vibration isolator has been proposed that utilizes a flow action such as a re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/26F16F13/06F16F13/18
CPCF16F13/266F16F13/264F16F13/262F16F13/106
Inventor 山本诚一郎长谷川浩一滨田真彰
Owner SUMITOMO RIKO CO LTD
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