JPS555432A - Pump with inducer - Google Patents

Pump with inducer

Info

Publication number
JPS555432A
JPS555432A JP7642878A JP7642878A JPS555432A JP S555432 A JPS555432 A JP S555432A JP 7642878 A JP7642878 A JP 7642878A JP 7642878 A JP7642878 A JP 7642878A JP S555432 A JPS555432 A JP S555432A
Authority
JP
Japan
Prior art keywords
inducer
throttle plate
impeller
drilled
opening holes
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
JP7642878A
Other languages
Japanese (ja)
Other versions
JPS5813760B2 (en
Inventor
Isamu Ichiki
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.)
Ebara Corp
Original Assignee
Ebara 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 Ebara Corp filed Critical Ebara Corp
Priority to JP53076428A priority Critical patent/JPS5813760B2/en
Publication of JPS555432A publication Critical patent/JPS555432A/en
Publication of JPS5813760B2 publication Critical patent/JPS5813760B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To remarkably reduce a generation of noise and vibration with a reverse flow made blocking in a range of low flow rate, by means of arranging a throttle plate, in which a plurality of opening holes are drilled, in a location between impeller and inducer and at the upstream side of the inducer.
CONSTITUTION: In a throttle plate 23, arranged between an impeller 3 and an inducer 4, are drilled a plurality of opening holes 23'. And also a throttle plate 24, arranged in front of the inducer 4, that is, at the upstream side, presents almost a cylindrical shape similarly to the throttle plate 23, and throughout its total faces are drilled a plurality of opening holes 24' in the flowing direction of the fluid. In this way, a reverse flow is made blocking in a range of low flow rate, capable of remarkably reducing a generation of noise and vibration. And dimensions, made in such manner with inside diameter D2 of the throttle plate 23 and inside diameter D4 of the throttle plate 24 being about 78 to 85% of suction diameter D1 of the impeller 3 and outside diameter D3 of the inducer 4 respectively, are preventing the efficiency from lowering caused by an increase of flow speed.
COPYRIGHT: (C)1980,JPO&Japio
JP53076428A 1978-06-26 1978-06-26 Pump with inducer Expired JPS5813760B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53076428A JPS5813760B2 (en) 1978-06-26 1978-06-26 Pump with inducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53076428A JPS5813760B2 (en) 1978-06-26 1978-06-26 Pump with inducer

Publications (2)

Publication Number Publication Date
JPS555432A true JPS555432A (en) 1980-01-16
JPS5813760B2 JPS5813760B2 (en) 1983-03-15

Family

ID=13604888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53076428A Expired JPS5813760B2 (en) 1978-06-26 1978-06-26 Pump with inducer

Country Status (1)

Country Link
JP (1) JPS5813760B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124099A (en) * 1981-01-26 1982-08-02 Ebara Corp Pump
JPS6436467A (en) * 1987-07-31 1989-02-07 Rohm Co Ltd Thermal head
JP2008184929A (en) * 2007-01-29 2008-08-14 Ihi Corp Inducer device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6272257A (en) * 1985-09-26 1987-04-02 Fujitsu Ltd Control system for telephone line

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113201A (en) * 1975-03-29 1976-10-06 Ebara Corp Gas or liquid pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113201A (en) * 1975-03-29 1976-10-06 Ebara Corp Gas or liquid pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124099A (en) * 1981-01-26 1982-08-02 Ebara Corp Pump
JPS6436467A (en) * 1987-07-31 1989-02-07 Rohm Co Ltd Thermal head
JPH0417795B2 (en) * 1987-07-31 1992-03-26 Rohm Kk
JP2008184929A (en) * 2007-01-29 2008-08-14 Ihi Corp Inducer device

Also Published As

Publication number Publication date
JPS5813760B2 (en) 1983-03-15

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