JPS6469799A - Blade operation device of movable blade pump - Google Patents

Blade operation device of movable blade pump

Info

Publication number
JPS6469799A
JPS6469799A JP22638587A JP22638587A JPS6469799A JP S6469799 A JPS6469799 A JP S6469799A JP 22638587 A JP22638587 A JP 22638587A JP 22638587 A JP22638587 A JP 22638587A JP S6469799 A JPS6469799 A JP S6469799A
Authority
JP
Japan
Prior art keywords
clearance
impeller
blade
vane
impeller vane
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
JP22638587A
Other languages
Japanese (ja)
Inventor
Masayuki Yamada
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP22638587A priority Critical patent/JPS6469799A/en
Publication of JPS6469799A publication Critical patent/JPS6469799A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE:To prevent a clearance from being blocked by foreign matters easily by arranging a clearance closing slidable member and plural engagingly locking members engaged each other to be used when the clearance becomes zero, in the clearance between an impeller vane and an impeller hub. CONSTITUTION:An operation rod 7 is arranged in a pump main shaft 8 whose upper end is fixed to a blade angle operation mechanism so as to be driven. An impeller vane 1 is installed to the lower end of the pump main shaft 8 and rotated through the operation rod 7 and its blade installation angle is adjusted. In the above composition, the impeller stem shaft 20 of the impeller vane 1 is supported by each of upper and lower bearings 3a, 3b. And a clearance closing slidable member 9 is arranged in the clearance between the impeller vane and the impeller hub 2. Engagingly locked members 13a, 13b are formed on the outer circumference of the impeller stem shaft 20 and the inner circumference of the lower bearing 3b respectively and they are engaged each other when the clearance 12 becomes zero.
JP22638587A 1987-09-11 1987-09-11 Blade operation device of movable blade pump Pending JPS6469799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22638587A JPS6469799A (en) 1987-09-11 1987-09-11 Blade operation device of movable blade pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22638587A JPS6469799A (en) 1987-09-11 1987-09-11 Blade operation device of movable blade pump

Publications (1)

Publication Number Publication Date
JPS6469799A true JPS6469799A (en) 1989-03-15

Family

ID=16844293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22638587A Pending JPS6469799A (en) 1987-09-11 1987-09-11 Blade operation device of movable blade pump

Country Status (1)

Country Link
JP (1) JPS6469799A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021173185A (en) * 2020-04-22 2021-11-01 株式会社荏原製作所 Impeller and hydraulic machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021173185A (en) * 2020-04-22 2021-11-01 株式会社荏原製作所 Impeller and hydraulic machine

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