Fluid-filled type vibration damping device
A vibration damping device and fluid filling technology, applied in the direction of shock absorbers, power devices, jet propulsion devices, etc., can solve problems such as deterioration, keeping valve devices open and closed, rubber elastic body rupture, etc., to prevent vibration and noise, The effect of eliminating negative pressure
Active Publication Date: 2007-03-21
SUMITOMO RIKO CO LTD
View PDF4 Cites 30 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to repeated opening and closing or due to changes over time, the rubber elastic constituting the valve unit is deformed or deteriorated so that it can no longer be maintained in a fluid-tight closed state even when the negative pressure in the pressure receiving chamber is lower than a predetermined negative pressure Danger of short circuit opening
In addition, the rubber elastomer itself breaks due to repeated elastic deformation
In addition, depending on the required properties, the elastic deformation of the valve device composed of rubber elastomers cannot be restored to the original shape with sufficient accuracy
In addition, by using a valve device using a rubber elastic body, the size and shape are liable to change, which makes it difficult to hold the valve device open and closed with a predetermined negative pressure as a threshold with high precision
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] 1 and 2, there is shown a liquid-filled vibration damping device in the form of an automotive engine mount 10 having a structure according to a first embodiment of the present invention. The engine mount 10 includes a first mounting part 12 made of metal, a second mounting part 14 made of metal, and a main rubber elastic body 16 elastically connecting the first and second mounting parts 12 , 14 . By connecting the first mount 12 to the vehicle's power unit (not shown) and the second mount 14 to the vehicle body (not shown), the power unit can be supported on the vehicle body in a vibration-damping manner. In the following description, the vertical direction generally refers to the vertical direction in FIG. 1 .
[0041] As will be described in more detail below, the first mounting member 12 has an inverted, generally frusto-conical shape with an integrally formed threaded portion 18 projecting upwardly from its large diameter end. A screw hole 20 is provided in the thr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A fluid filled type vibration damping device includes: a main rubber elastic body elastically connecting first and second mounting members; a partition member supported by the second mounting member; a pressure-receiving chamber partially defined by the elastic body and having a non-compressible fluid sealed therein; an equilibrium chamber partially defined by a flexible film and having the non-compressible fluid therein. The chambers are formed to either side of the partition member and an orifice passage permits a fluid communication between the two chambers. A short-circuit passage is formed so that the pressure-receiving and equilibrium chambers are able to be short-circuited through the short-circuit passage. A valve is used for switching the short-circuit passage, and a metal spring is used for holding the valve in a closed state at a predetermined initial level of elastic deformation.
Description
[0001] quote reference [0002] The entire contents of Japanese Patent Application No. 2005-267427 filed on September 14, 2005 and Japanese Patent Application No. 2006-052971 filed on February 28, 2006, each including specification, drawings and abstract, are incorporated herein by reference in their entirety as refer to. technical field [0003] The present invention relates to a fluid-filled damping device designed to produce a damping effect based on the flow of a non-compressible fluid sealed therein, and more particularly, to a vibration damping device suitable for use as an automotive engine mount, body Fluid-filled dampers for brackets, differential brackets, etc. Background technique [0004] In the field of vibration damping devices for installation between components constituting a vibration transmission system, it has been proposed to utilize a vibration damping effect based on a flow action of an incompressible fluid sealed therein, such as a resonance action. ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F16F13/08B60K5/12F16F13/06F16F13/10
Inventor 八方宽章村松笃上野浩行竹嶋悟
Owner SUMITOMO RIKO CO LTD