JPS54121402A - Gap adjusting process and its device in vacuum pump - Google Patents
Gap adjusting process and its device in vacuum pumpInfo
- Publication number
- JPS54121402A JPS54121402A JP2900978A JP2900978A JPS54121402A JP S54121402 A JPS54121402 A JP S54121402A JP 2900978 A JP2900978 A JP 2900978A JP 2900978 A JP2900978 A JP 2900978A JP S54121402 A JPS54121402 A JP S54121402A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- rotary axle
- gaps
- vacuum pump
- plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To contrive for precise installation as well as for exceeding simplification of infinitesimal gaps between each port plate and each impeller after incorporating the rotary axle and impellers.
CONSTITUTION: A two-throw vacuum pump is installed with gaps for two port plates 2, 3 at the central part of a casing 1, which is tightly fixed with respectively impellers 7, 8 positioned in pump chambers 4, 5 on a rotary axle 6 piercing through the both plates, desired infinitesimal gaps ε are provided between each impeller and its relevant port plates. In case of assembling such a vacuum pump, the impeller 7 is tightly fixed on the rotary axle 7 with the impeller 8 in free command of sliding, which are closely attached to corresponding plates 2, 3, subsequently first the impeller 8 get moved relatively with the rotary axle 6 to form gaps 2ε, then after tightly fixing the second impeller 8 onto the rotary axle 6, the rotary axle 6 is made to get moved by the distance ε.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2900978A JPS54121402A (en) | 1978-03-13 | 1978-03-13 | Gap adjusting process and its device in vacuum pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2900978A JPS54121402A (en) | 1978-03-13 | 1978-03-13 | Gap adjusting process and its device in vacuum pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54121402A true JPS54121402A (en) | 1979-09-20 |
Family
ID=12264400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2900978A Pending JPS54121402A (en) | 1978-03-13 | 1978-03-13 | Gap adjusting process and its device in vacuum pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54121402A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4405283A (en) * | 1980-06-19 | 1983-09-20 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Gas turbine construction and method of controlling the labyrinth seal clearance automatically and continuously |
-
1978
- 1978-03-13 JP JP2900978A patent/JPS54121402A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4405283A (en) * | 1980-06-19 | 1983-09-20 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Gas turbine construction and method of controlling the labyrinth seal clearance automatically and continuously |
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