JPH02230996A - Centrifugal pump and impeller thereof - Google Patents

Centrifugal pump and impeller thereof

Info

Publication number
JPH02230996A
JPH02230996A JP5162089A JP5162089A JPH02230996A JP H02230996 A JPH02230996 A JP H02230996A JP 5162089 A JP5162089 A JP 5162089A JP 5162089 A JP5162089 A JP 5162089A JP H02230996 A JPH02230996 A JP H02230996A
Authority
JP
Japan
Prior art keywords
impeller
hole opening
pump
hole
faced
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
JP5162089A
Other languages
Japanese (ja)
Other versions
JP2737088B2 (en
Inventor
Haruo Tsujimoto
Original Assignee
Tsurumi Mfg Co 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 Tsurumi Mfg Co Ltd filed Critical Tsurumi Mfg Co Ltd
Priority to JP5162089A priority Critical patent/JP2737088B2/en
Publication of JPH02230996A publication Critical patent/JPH02230996A/en
Application granted granted Critical
Publication of JP2737088B2 publication Critical patent/JP2737088B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To maintain the balance of the shaft thrust, reduce the leakage loss, and prevent the infiltration of slurry into a shaft seal section by constituting the through hole opening section on the rear face of an impeller and the rear side wall of a pump casing face to face, and constituting the through hole opening face on the surface of the impeller and the circular side wall of a suction cover face to face respectively.
CONSTITUTION: The through hole opening face 2a on the rear face of an impeller 1 stored in a scroll chamber 3 is faced to the rear side wall 4 of a pump casing, and the through hole opening face 2b on the surface of the impeller is faced to the circular side wall 5 of a suction cover. A bypass passage consisting of the outer periphery of the impeller 1 → the through hole opening face 2a on the rear face of the impeller → a through hole 2 → the through hole opening face 2b on the surface of the impeller → the outer periphery of the impeller 1 is constituted. As a result, when a pump is driven, a negative pressure is generated at the inlet of the impeller to perform a pump action, a negative pressure is also generated near the through hole opening face 2a on the rear face of the impeller, and the balance of the shaft thrust can be maintained.
COPYRIGHT: (C)1990,JPO&Japio
JP5162089A 1989-03-02 1989-03-02 Centrifugal pump and its impeller Expired - Fee Related JP2737088B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5162089A JP2737088B2 (en) 1989-03-02 1989-03-02 Centrifugal pump and its impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5162089A JP2737088B2 (en) 1989-03-02 1989-03-02 Centrifugal pump and its impeller

Publications (2)

Publication Number Publication Date
JPH02230996A true JPH02230996A (en) 1990-09-13
JP2737088B2 JP2737088B2 (en) 1998-04-08

Family

ID=12891921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5162089A Expired - Fee Related JP2737088B2 (en) 1989-03-02 1989-03-02 Centrifugal pump and its impeller

Country Status (1)

Country Link
JP (1) JP2737088B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03123999U (en) * 1990-03-30 1991-12-17

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154030A (en) * 2014-07-15 2014-11-19 中国核电工程有限公司 Novel-structural impeller capable of performing dynamic balance correction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03123999U (en) * 1990-03-30 1991-12-17

Also Published As

Publication number Publication date
JP2737088B2 (en) 1998-04-08

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees