Ejector and vacuum generating device including the same
The integrated ejector and vacuum generating device addresses space and labor challenges by incorporating the switching valve and manifold base into a single unit, reducing installation space and labor requirements.
JP7700528B2Active Publication Date: 2025-07-01SMC CORP
Patent Information
- Application Number
- JP2021101784
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-06-18
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2041-06-18
AI Technical Summary
Technical Problem
Existing vacuum suction devices face challenges with increased installation space and labor burden due to separate ejectors and switching valves requiring individual installation and extensive piping connections.
Method used
An integrated ejector and vacuum generating device design where the ejector body incorporates a mounting surface for the switching valve and manifold base, with internal flow paths and ports for direct connection, reducing the need for separate installation and piping.
Benefits of technology
This design minimizes the installation space and labor required for connecting the switching valve, ejector, and piping, thereby optimizing space utilization and reducing labor costs.
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Smart Images
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Abstract
To provide an ejector and a vacuum generation device that can reduce an installation space for a switching valve, the ejector, and piping, and reduce a labor burden of assembly work.SOLUTION: An ejector 20 comprises: an ejector body 21 comprising an internal flow passage 27; and a negative pressure generation mechanism 22 comprising a nozzle part 23 for injecting compressed air, and a diffuser part 24 for generating a negative pressure by the compressed air from the nozzle part. The ejector body comprises a first fitting surface 20a fixedly fitted with a valve body 41 of a switching valve 40, and a second fitting surface 20b fixedly fitted with a base body 18 of a manifold base 10. The first fitting surface comprises a first inflow port 28a to which a first output port A of the switching valve is connected, for supplying the compressed air to the negative pressure generation mechanism. The first inflow port communicates with the nozzle part through a supply flow passage 28. The second fitting surface comprises a negative pressure supply port 29c to which a negative pressure input port of the manifold base is connected, for outputting the negative pressure to the outside. The negative pressure supply port communicates with the diffuser part through a negative pressure communication flow passage 29.SELECTED DRAWING: Figure 2
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Citation Information
Patent Citations
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