Pumping equipment
The pump device addresses hydraulic amplitude issues by introducing air at precise rotor angles and using a trochoid rotor configuration with a check valve to reduce noise, vibration, and cavitation, enhancing efficiency and reducing size and complexity.
JP7612501B2Active Publication Date: 2025-01-14MIKUNI CORP
Patent Information
- Application Number
- JP2021073773
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-04-26
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2041-04-26
Smart Images
Figure 0007612501000001 
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Abstract
To provide a pump device for suppressing the hydraulic amplitude and reducing noise or vibration associated with the hydraulic amplitude while simplifying the construction.SOLUTION: The pump device includes a housing H defining a suction port 15, a discharge port 16 and a storage chamber 13, and a pump unit Pu arranged in the storage chamber and defining a pump chamber Pc which is expandable to give pump operation including suction, pressure and discharge strokes to fluid, the housing including an air introduction hole 27 to be opened to introduce air into the pump chamber at a predetermined opening timing right before the suction stroke is completed.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
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