Integrated Fluid Pressure Valve Housing for Compact Flow Paths
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Solution Overview
Problem
Conventional fluid pressure valves have a large radial dimension due to the need for structural strength to withstand fluid pressure and require separate members and sealants to define the flow path, making it difficult to reduce their size.
Innovation Solution
The fluid pressure valve integrates the flow path within the housing, eliminating the need for separate valve seat members and sealants, allowing for a smaller radial dimension by using a housing with a first and second housing part where the flow path is defined by the housing itself, and optimizing the flow with projections and curved sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a separate valve seat support and valve seat are used to define the flow path, then the flow path can be properly defined, but the radial dimension of the housing increases
Solution Approach 1:
The patent merges the valve seat support and valve seat functions directly into the housing structure. The housing includes a flow path defining portion that integrally defines the flow path between ports, eliminating the need for separate valve seat support and valve seat members. This integration reduces the radial dimension of the housing while maintaining proper flow path definition.
2Volume of moving object
If seal members are added to prevent leakage between separate components, then leakage is prevented, but the radial dimension increases
Solution Approach 1:
The patent eliminates the need for seal members by integrating the flow path definition directly into the housing structure. Since there are no separate components (valve seat support, valve seat) that require sealing interfaces, leakage prevention is achieved without adding radial dimension for seal members.
3Volume of moving object
If the housing is formed integrally to reduce radial dimension, then the radial dimension decreases, but manufacturing complexity may increase
Solution Approach 1:
The patent integrates multiple functions (housing structure, flow path definition, port formation) into a single housing component. While this reduces the radial dimension and number of parts, it may require more complex manufacturing processes such as precision casting or machining to create the integrated flow path geometry within the housing.
Data Source
AI summary
A fluid pressure valve according to an embodiment of the present invention is applicable to a fluid pressure servo mechanism. The fluid pressure valve includes a housing having a housing member, the housing member being formed integrally so as to have a first port, a second port, and a flow path connecting between the first port and the second port.