Integrated Decompression Switching Valve Spool Design
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Solution Overview
Problem
Existing air cylinder systems face challenges in reducing running and initial costs while conserving energy, as they require additional decompression valves that complicate and enlarge equipment.
Innovation Solution
A decompression switching valve with a spool and spool driving section that integrates a switching valve section and a decompression valve section, using an elastic member to adjust air pressure, allowing for energy conservation and equipment simplification by reducing air consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If decompression valves are added to the air cylinder system to reduce air consumption and save energy, then energy conservation is improved, but device complexity and initial cost increase
Solution Approach 1:
The patent combines the decompression valve and switching valve into a single integrated valve body with a common spool mechanism. The first spool handles switching functions while the second spool handles decompression, both within one unified device. This merging eliminates the need for separate decompression and switching valves, reducing equipment complexity while maintaining energy conservation benefits.
Solution Approach 2:
The integrated valve performs multiple functions simultaneously: it acts as both a switching valve for directing compressed air to different cylinders and as a decompression valve for reducing air pressure. The single valve body with multiple spools enables this multi-functionality, allowing one device to replace what would traditionally require separate components.
2Loss of energy
If decompression valves are added to reduce air consumption, then running cost is reduced, but initial cost increases due to additional equipment
Solution Approach 1:
By merging the decompression and switching valve functions into a single integrated device, the patent reduces the total number of components that need to be manufactured and assembled. This consolidation lowers initial manufacturing costs and installation expenses while preserving the running cost benefits of energy conservation through decompression.
3Reliability
If multiple separate valves are used for switching and decompression, then functional reliability is improved, but equipment size increases
Solution Approach 1:
The patent successfully merges multiple valve functions into a single compact valve body, significantly reducing equipment size and space requirements. The integrated design maintains functional reliability by implementing proper sealing mechanisms and independent spool control for each function within the unified structure.
Solution Approach 2:
The valve employs a nested structure where multiple spools (first spool for switching, second spool for decompression) are arranged concentrically or in sequence within the same valve body. This nesting approach allows multiple functional elements to occupy minimal space while maintaining their independent operational integrity.
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 solution enables energy conservation and equipment downsizing, reducing both running and initial costs by efficiently managing air consumption and pressure adjustments within the air cylinder system.
Implementation Method 1
an elastic member that applies an elastic applying force to the second spool toward the first end
Implementation Method 2
a pressure receiving surface that makes a pressure of the second output port act on the second spool in a direction opposite to the applying force
Data Source
AI summary
To provide a decompression switching valve that enables reduction in the running cost and initial cost, by saving of air consumption and simplifying and downsizing of equipment. A decompression switching valve includes one valve hole, a main valve body having air supply ports, a first output port, a second output port, and an air exhaust port which are communicated with the valve hole, and a first spool and a second spool which are slidably provided in the valve hole, adjacent to each other, wherein the first spool forms a switching valve section that selectively connects the first output port to an air supply port or the air exhaust port, and wherein the second spool forms a decompression valve section that reduces the pressure of compressed air having been input from the air supply port and outputs the pressure from the second output port.