JPS54121402A - Gap adjusting process and its device in vacuum pump - Google Patents

Gap adjusting process and its device in vacuum pump

Info

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
Application number
JP2900978A
Other languages
Japanese (ja)
Inventor
Kazuhiko Tada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP2900978A priority Critical patent/JPS54121402A/en
Publication of JPS54121402A publication Critical patent/JPS54121402A/en
Pending legal-status Critical Current

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  • 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
JP2900978A 1978-03-13 1978-03-13 Gap adjusting process and its device in vacuum pump Pending JPS54121402A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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