Pilot Stage Ball-Conical Seat for Easier Pressure Valve Variants
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pre-controlled pressure regulation valves for hydraulic shock absorbers have complex components with high manufacturing demands, making them costly and difficult to produce variants with different opening pressures.
Innovation Solution
A pressure regulation valve with a pilot stage valve featuring a ball valve body and a conical seat, reducing manufacturing complexity and allowing for cost-effective production while maintaining minimal variance in parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If planar sealing areas are used in pilot stage valves, then sealing reliability can be achieved, but manufacturing complexity and manufacturing effort increase significantly
Solution Approach 1:
The patent replaces planar sealing surfaces with a spherical ball valve body that seals against a conical seat. The spherical geometry inherently provides point or line contact sealing that is more tolerant of surface deviations and easier to manufacture than large planar sealing areas, directly resolving the contradiction between sealing reliability and manufacturing effort.
2Reliability
If complex components with planar sealing areas are used, then valve function can be achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The spherical ball valve body simplifies the overall component geometry compared to complex planar sealing components. The sphere is a single continuous surface that is easier to manufacture with standard machining or casting processes, reducing device complexity while maintaining valve functionality.
Solution Approach 2:
The patent changes the geometric parameters of the sealing interface from planar to spherical-conical contact. This parameter change fundamentally simplifies the component design and manufacturing while preserving the essential valve opening and closing function.
3Adaptability or versatility
If seat diameter is varied to implement different opening pressures, then opening pressure adjustment is possible, but manufacturing effort and complexity increase
Solution Approach 1:
The patent enables opening pressure adjustment by varying the cone angle of the conical seat rather than changing the seat diameter. This parameter change approach allows for easier manufacturing since the ball valve body remains spherical and unchanged, while only the conical seat geometry needs to be modified to achieve different pressure settings.
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 reduces manufacturing effort and costs, facilitates the production of cost-effective pressure regulation valves, and allows for easier variant formation with minimal variance in parameters.
Implementation Method 1
a pilot stage valve with a ball valve body and preferably a conical seat as the valve seat for the ball valve body
Data Source
AI summary
A pressure regulation valve including a pilot stage valve with a ball valve body and a conical seat. A shock absorber with at least one pressure regulation valve.