Title:
エピトロコイド真空ポンプ
Document Type and Number:
Japanese Patent JP7061618
Kind Code:
B2
Abstract:
An epitrochoidal vacuum pump includes a housing having a chamber, a rotor rotatably received within the internal space of the chamber, and a drive shaft configured to rotate the rotor eccentrically about an axis within the chamber in an epitrochoidal manner. An externally toothed guide sprocket meshes with and guides movement of a guide gear of the rotor as it is driven by the drive shaft. A chamber inlet draws air under negative pressure into the housing, and an outlet is provided to expulse air under positive pressure from the housing. Further, a fluid inlet is provided to input lubricant along the drive shaft and into the internal space of the chamber. The fluid inlet is communicated by channel(s) in an interior of the housing. The lubricant is drawn into the housing via a pressure differential.
Inventors:
Falkenburg, Ralph
Bow Meester, Luke
Bow Meester, Luke
Application Number:
JP2019551285A
Publication Date:
April 28, 2022
Filing Date:
April 06, 2018
Export Citation:
Assignee:
STACKPOLE INTERNATIONAL ENGINEERED PRODUCTS, LTD.
International Classes:
F04C29/02; F04C18/22; F04C25/02; F04C29/00; F04C29/12
Domestic Patent References:
| JP3033491A | ||||
| JP5058891U | ||||
| JP2003314479A | ||||
| JP2002501800A | ||||
| JP3085388A | ||||
| JP3175191A |
Foreign References:
| WO2016009197A1 |
Attorney, Agent or Firm:
Satoshi Murakoshi
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