Pilot Electromagnetic Valve Passage Layout for Unified Valve Bodies
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Solution Overview
Problem
The production efficiency of pilot-type electromagnetic valves is hindered by the need for two types of bodies with different passage structures for the first and second pilot valves, leading to inefficiencies in manufacturing.
Innovation Solution
The design incorporates rectangular block-shaped bodies for both pilot valves, with shared passage structures and a connecting recess, allowing the first and second pilot valves to have the same passage structure, eliminating the need for distinct designs and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first pilot valve and the second pilot valve have different passage structures, then the pilot fluid can be supplied to and discharged from the first and second pilot pressure chambers, but the production efficiency deteriorates due to the need for two types of bodies
Solution Approach 1:
The first pilot valve and second pilot valve are designed with identical passage structures, allowing a single body type to serve multiple functions. Each valve body contains a valve chamber, supply passage, first output passage, second output passage, and discharge passage, enabling both valves to independently control pilot fluid flow to their respective pressure chambers using the same standardized component design.
Solution Approach 2:
The valve body is segmented into distinct functional passages (supply passage, first output passage, second output passage, discharge passage) that are independently configured but structurally unified. This segmentation allows each passage to perform its specific function while maintaining overall structural consistency across both valve types, simplifying manufacturing.
2Reliability
If the first pilot valve and the second pilot valve have different passage structures, then the specific pilot fluid paths can be established, but the device complexity increases
Solution Approach 1:
A universal valve body design is employed where the same body structure is used for both the first and second pilot valves. The body incorporates standardized passages (supply passage 411, first output passage 412, second output passage 413, discharge passage 414) that can be configured to serve different functions depending on the valve's position in the system, reducing the number of unique body designs required.
Solution Approach 2:
The supply passage, output passages, and discharge passage are merged into a single integrated valve body structure rather than being separate components. This consolidation simplifies the overall device complexity while maintaining the ability to establish specific pilot fluid paths through the internal passage configuration within each unified body.
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 approach enhances production efficiency by allowing the use of a single passage structure for both valves, reducing component complexity and assembly time, while ensuring proper fluid handling and preventing cross-contamination of pilot fluids.
Implementation Method 1
The first pilot valve and the second pilot valve each include a solenoid
Data Source
AI summary
Passage forming blocks of a first pilot valve and a second pilot valve each include a supply passage, which opens in a first surface and a second surface and is connected to a valve chamber, a first output passage, which opens in the first surface and are connected to the valve chamber, and a second output passage, which opens in the first surface. Further, the passage forming blocks each include an output passage connecting recess. The output passage connecting recess is provided in a section of the second surface that overlaps with an opening region of the first output passage, which opens in the first surface, and is connected to the second output passage. The first output passage of the first pilot valve is connected to the second output passage of the second pilot valve via the output passage connecting recess of the second pilot valve.