JPS555460A - Pump - Google Patents

Pump

Info

Publication number
JPS555460A
JPS555460A JP7742778A JP7742778A JPS555460A JP S555460 A JPS555460 A JP S555460A JP 7742778 A JP7742778 A JP 7742778A JP 7742778 A JP7742778 A JP 7742778A JP S555460 A JPS555460 A JP S555460A
Authority
JP
Japan
Prior art keywords
casing
recess
water
inside surface
pump
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.)
Granted
Application number
JP7742778A
Other languages
Japanese (ja)
Other versions
JPS6047480B2 (en
Inventor
Kengo Hasegawa
Yukio Tagawa
Masao Yoshida
Tadao Tateshita
Junichi Kobayashi
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 JP7742778A priority Critical patent/JPS6047480B2/en
Publication of JPS555460A publication Critical patent/JPS555460A/en
Publication of JPS6047480B2 publication Critical patent/JPS6047480B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To facilitate the drilling of a water hole and reduce the thrust of a pump, by providing the inside surface of a casing with a recess for the facilitation and by installing a partition plate on the inside surface of the casing in the face of the recess to stop the flow of water swirl.
CONSTITUTION: The inside surface of a part 6 of the casing which faces a pump impeller 1 is provided with the recess 11 for facilitating the drilling of the water hole 10 for supplying a part of water from a rear shroud 3. The partition plate 12 for stopping the flow of water swirling in the direction of rotation of a front shroud 4 is installed on another part 7 of the casing in the face of the recess 1 through the pump impeller 1. As a result, opposite thrusts are decreased by each other. The final thrust is reduced as shown by the curve C. Therefore, the lifetime of bearings is lengthened and their size and weight are reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP7742778A 1978-06-28 1978-06-28 pump equipment Expired JPS6047480B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7742778A JPS6047480B2 (en) 1978-06-28 1978-06-28 pump equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7742778A JPS6047480B2 (en) 1978-06-28 1978-06-28 pump equipment

Publications (2)

Publication Number Publication Date
JPS555460A true JPS555460A (en) 1980-01-16
JPS6047480B2 JPS6047480B2 (en) 1985-10-22

Family

ID=13633679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7742778A Expired JPS6047480B2 (en) 1978-06-28 1978-06-28 pump equipment

Country Status (1)

Country Link
JP (1) JPS6047480B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161932U (en) * 1982-04-23 1983-10-28 北川精機株式会社 Automatic board feeding device
JPS6043647U (en) * 1983-08-31 1985-03-27 北川精機株式会社 Plywood veneer delivery mechanism
JPS60195901U (en) * 1984-06-07 1985-12-27 株式会社　東洋空機製作所 air motor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022146334A (en) 2021-03-22 2022-10-05 富士フイルムビジネスイノベーション株式会社 Information processing system, image forming device, and program
JP2022146326A (en) 2021-03-22 2022-10-05 富士フイルムビジネスイノベーション株式会社 Information processing system, image forming device, and program

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161932U (en) * 1982-04-23 1983-10-28 北川精機株式会社 Automatic board feeding device
JPS6043647U (en) * 1983-08-31 1985-03-27 北川精機株式会社 Plywood veneer delivery mechanism
JPS60195901U (en) * 1984-06-07 1985-12-27 株式会社　東洋空機製作所 air motor

Also Published As

Publication number Publication date
JPS6047480B2 (en) 1985-10-22

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