Shock Absorber Spoke Valve Structure to Limit Excessive Bending
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Solution Overview
Problem
Existing valve mechanisms in shock absorbers are prone to excessive bending when fluid flow rates increase, leading to reduced durability and performance.
Innovation Solution
A valve mechanism comprising a tubular body, a valve body with a spoke valve and a protective valve, where the protective valve is positioned to prevent excessive deformation of the spoke valve during fluid flow, and spacers are used to adjust damping characteristics, enhancing the durability and stability of the valve mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the valve body is pressed by a drive unit to be elastically deformed to control a flow passage area, then the damping force can be adjusted, but the valve body may be excessively bent when a flow rate of fluid is increased
Solution Approach 1:
The valve body is divided into multiple valve elements (first valve element, second valve element, third valve element) that can deform independently. Each valve element has its own elastic deformation capability, allowing the system to adjust damping force while distributing mechanical stress across multiple components rather than concentrating it on a single valve body, thereby preventing excessive bending.
Solution Approach 2:
The valve elements are constructed with composite structures combining rigid and elastic portions. The rigid portions maintain structural integrity and prevent excessive bending, while the elastic portions enable the necessary deformation for damping force adjustment. This composite approach allows the valve to withstand high flow rates without excessive bending while maintaining adaptability.
2Strength
If the valve body is made more rigid to prevent bending, then durability improves, but the ability to elastically deform for flow control is reduced
Solution Approach 1:
By segmenting the valve body into rigid and elastic portions, the invention allows different parts to serve different functions. The rigid portions provide structural strength and prevent excessive bending, while the elastic portions maintain the ability to deform for flow control. This segmentation resolves the contradiction by spatially separating the conflicting requirements within the same component.
Solution Approach 2:
Different portions of the valve elements have different mechanical properties - some areas are designed to be rigid for structural support, while other areas are designed to be elastic for deformation. This local differentiation of material properties allows the valve to simultaneously achieve durability and flow control capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively suppresses excessive bending of the valve body, thereby improving its durability and maintaining optimal damping performance across varying fluid flow rates.
Implementation Method 1
the valve body includes a spoke valve which includes an outer frame portion formed in an annular shape, an inner frame portion formed in an annular shape on an inner side in a radial direction with respect to the outer frame portion, and a plurality of spoke portions connecting the outer frame portion and the inner frame portion
Implementation Method 2
a protective valve which protects the spoke portion when the spoke portion of the spoke valve is deformed
Data Source
AI summary
A valve mechanism includes an orifice collar having a hollow portion penetrating in an axial direction, a valve body having a central hole and an opening portion which penetrate in the axial direction and arranged so as to come into contact with an axial end surface of the orifice collar, and a drive valve which is movable in the axial direction and is arranged on an opposite side of the orifice collar with the valve body as a boundary, where the valve body includes spoke valves, each of which includes an outer frame portion, an inner frame portion, and a plurality of spoke portions connecting the outer frame portion 74 and the inner frame portion, and a protective valve which protects the spoke portion when the spoke portion of the spoke valve is deformed.