Integrated Ejector and Switching Valve for Compact Vacuum Generation
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Solution Overview
Problem
Existing vacuum suction apparatuses require separate installation of an ejector and switching valve, leading to increased space and installation effort due to the need for individual components and connecting pipes.
Innovation Solution
An integrated ejector design that combines a nozzle unit, diffuser unit, and switching valve, with internal passages and ports for compressed air and negative pressure, allowing for direct attachment to a manifold base and valve body, reducing the need for separate installation and piping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the ejector and switching valve are provided separately and connected by a pipe, then the functionality is complete, but the installation space and installation time increase
Solution Approach 1:
The patent combines the ejector and switching valve into a single integrated unit where the valve body is formed as one piece with the ejector body. The internal passages are formed directly within this unified structure, eliminating the need for separate components and connecting pipes, thereby reducing installation space and simplifying the overall device configuration.
2Device complexity
If the ejector and switching valve are provided separately and connected by a pipe, then the functionality is complete, but the installation time and effort increase
Solution Approach 1:
The integrated design allows the ejector and switching valve to be installed as a single unit, eliminating the time-consuming process of installing separate components and connecting them with pipes. The unified structure with internal passages ready for connection reduces installation steps and labor requirements.
3Ease of manufacture
If separate components are used, then each component can be optimized independently, but the overall system requires more piping and connection points
Solution Approach 1:
By forming the valve body and ejector body as a single integrated component, the patent eliminates the need for external piping to connect separate components. The internal passages are formed directly within the unified structure, reducing piping requirements while maintaining the ability to optimize the overall design for manufacturing efficiency.
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 integrated ejector design minimizes installation space and effort by combining components, thus optimizing the vacuum generating device's layout and installation process.
Implementation Method 1
the ejector includes a nozzle unit that ejects compressed air and a diffuser unit that mixes air which is drawn in concomitantly with the ejection of the compressed air from the nozzle unit with the compressed air and then discharges the mixed air
Data Source
AI summary
An ejector includes an ejector body having an internal passage and a negative-pressure generating mechanism including a nozzle unit and a diffuser unit that generates a negative pressure by using compressed air ejected by the nozzle unit. The ejector body has a first attachment surface to which a valve body of a switching valve is attached and a second attachment surface to which a base body of the manifold base is attached. The first attachment surface has a first inflow port for supplying compressed air to the negative-pressure generating mechanism by being connected to a first output port of the switching valve, and this port communicates with the nozzle unit. The second attachment surface has a negative-pressure supply port for outputting a negative pressure to the outside by being connected to a negative-pressure inflow port of the manifold base, and this port communicates with the diffuser unit.