Title:
多段ルーツ型ドライ真空ポンプ
Document Type and Number:
Japanese Patent JP7121416
Kind Code:
B2
Abstract:
The present invention discloses a multi-stage dry Roots vacuum pump, which includes a pump body (1) and electric drive terminals. The pump body (1) at least includes one stage of Roots system; the Roots system at least includes one stage of Roots working unit (2); the Roots working unit (2) is provided with paired Roots rotors (3 and 4) and Roots rotating shafts (24); and the electric drive terminals are in transmission connection with the Roots rotating shafts (24). Each pair of Roots rotors is independent, which releases the mutual involvement and optimizes the design and manufacture; each pair of Roots rotors reduces the mechanical transmission length through independent electric drive; magnetic gear transmission and magnetic coupling connection are adopted to reduce noise; and dynamic seal is replaced with static seal to improve the sealing state, improve the service performance and prolong the service life of equipment.
Inventors:
Ding Dong win
Nintendo
Ma Yufumi
Nintendo
Ma Yufumi
Application Number:
JP2020542261A
Publication Date:
August 18, 2022
Filing Date:
November 30, 2018
Export Citation:
Assignee:
ZHONGSHAN TIANYUAN VACUUM EQUIPMENT TECHNOLOGY CO., LTD.
International Classes:
F04C18/18; F04C23/02; F04C25/02; F04C28/02; F16H49/00
Domestic Patent References:
| JP2014001668A | ||||
| JP2013209928A | ||||
| JP8254193A | ||||
| JP5231366A | ||||
| JP11093878A | ||||
| JP2008157446A | ||||
| JP10159775A |
Foreign References:
| WO2012066782A1 | ||||
| CN106438365A | ||||
| CN104632629A | ||||
| WO2017031807A1 | ||||
| CN2504406Y | ||||
| US20120051948 |
Attorney, Agent or Firm:
SK Patent Attorney Corporation
Akihiko Okuno
Hiroyuki Ito
Akihiko Okuno
Hiroyuki Ito
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