Fluid Damper Valve Structure for Faster Closing Transition
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Solution Overview
Problem
In fluid damper devices, the existing structure delays the valve body's transition to a closing attitude due to a narrow exposed area, resulting in insufficient fluid pressure when the turning shaft is turned in the closing direction.
Innovation Solution
The design includes a valve body support part with a first and second protruded part and a base part support part, where the end part of the first protruded part has an inclined face increasing the space between the inner side portion and the inclined face, enhancing the exposed area and fluid pressure applied to the valve body when turning in the closing direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve body support part has a narrow exposed area structure, then the device complexity is reduced, but the fluid pressure applied to the valve body is insufficient causing delayed closing transition
Solution Approach 1:
The patent introduces an inclined face on the end part of the first protruded part, transforming a two-dimensional radial overlap problem into a three-dimensional solution. The inclined face creates additional spatial volume in the radial-axial direction, increasing the exposed area without adding complex radial protrusions. This dimensional transition allows fluid pressure to act more effectively on the valve body's inner side portion, ensuring reliable closing transition while maintaining structural simplicity.
2Force
If the space between the inner side portion and the first protruded part is increased, then the fluid pressure applied to the valve body is increased, but the device volume increases
Solution Approach 1:
The patent employs an inclined face with a specific curvature profile on the end part of the first protruded part. This curved surface optimizes the space between the inner side portion and the protruded part, creating an efficient volume that accommodates sufficient fluid pressure generation without excessive overall device volume. The curvature allows fluid to be compressed effectively into the available space, maximizing pressure generation within compact dimensions.
3Ease of operation
If the inclined face is added to the first protruded part, then the valve body shifting smoothness is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent specifies particular parameter ranges for the inclined face, including the angle of inclination and the dimensions of the exposed area. By defining these parameters within optimal ranges rather than requiring exact precision, the design achieves smooth valve body shifting while maintaining manufacturability. The parameter optimization ensures that the inclined face provides sufficient exposed area for fluid pressure action without demanding ultra-precise manufacturing tolerances.
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
This configuration ensures smooth shifting of the valve body to a closing attitude with increased fluid pressure, preventing delays and improving the operational efficiency of the fluid damper device.
Implementation Method 1
fluid pressure applied to the valve body is large and thus timing when the valve body 50 begins to turn in a direction shown by the arrow "A0" with the base part 51 as a center is easily delayed
Data Source
AI summary
A fluid damper device and an apparatus with thereof are provided. In this fluid damper device, a protruded part of a valve body protrudes from a base part toward an outer side in the radial direction of the turning shaft, and toward one side around an axial line of the turning shaft, and a valve body support part of the turning shaft is equipped with a base part support part between a first protruded part and a second protruded part. An end part on an outer side in the radial direction of the first protruded part is provided with an inclined surface inclined with respect to an inner side portion of the valve body, and a space between the inner side portion and the end part increases from a second direction toward the first direction when the valve body is in the open position.