SU635286A1 - Pump - Google Patents

Pump

Info

Publication number
SU635286A1
SU635286A1 SU772493472A SU2493472A SU635286A1 SU 635286 A1 SU635286 A1 SU 635286A1 SU 772493472 A SU772493472 A SU 772493472A SU 2493472 A SU2493472 A SU 2493472A SU 635286 A1 SU635286 A1 SU 635286A1
Authority
SU
USSR - Soviet Union
Prior art keywords
pump
countercurrents
centrifugal
cone
suppressing
Prior art date
Application number
SU772493472A
Other languages
Russian (ru)
Inventor
Игорь Константинович Попв
Original Assignee
Предприятие П/Я В-8721
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 Предприятие П/Я В-8721 filed Critical Предприятие П/Я В-8721
Priority to SU772493472A priority Critical patent/SU635286A1/en
Application granted granted Critical
Publication of SU635286A1 publication Critical patent/SU635286A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

ков, при этом часть их энергии используетс  при работе иасоса, что повышает его КПД и расшир ет устойчивую зону работы на малых расходах.the part of their energy is used when the pump is working, which increases its efficiency and expands the stable area of operation at low costs.

Claims (1)

Формула изобретени Invention Formula Насос, содержащий ротор с центробежной и предвключенной осевой ступен ми и корпус со всасывающим патрубком, имеющим цилиндрическую поверхность входногоA pump comprising a rotor with centrifugal and upstream axial stages and a housing with a suction nozzle having a cylindrical inlet surface участка, поверхность увеличенного диаметра у осевой ступени и св зывающую их переходн5 ю поверхность, отличающийс  тем, что, с целью расширени  зоны устойчивой работы и повышени  КПД при малых расходах путем подавлени  противотоков , переходна  поверхность выполнена в виде конуса, образующего с цилиндрической поверхностью входного участка острую кромку.the area, the surface of an increased diameter at the axial stage and the transitional surface connecting them, characterized in that, in order to expand the zone of stable operation and increase efficiency at low flow rates by suppressing countercurrents, the transition surface is made in the form of a cone that forms sharp edge.
SU772493472A 1977-06-06 1977-06-06 Pump SU635286A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772493472A SU635286A1 (en) 1977-06-06 1977-06-06 Pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772493472A SU635286A1 (en) 1977-06-06 1977-06-06 Pump

Publications (1)

Publication Number Publication Date
SU635286A1 true SU635286A1 (en) 1978-11-30

Family

ID=20712133

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772493472A SU635286A1 (en) 1977-06-06 1977-06-06 Pump

Country Status (1)

Country Link
SU (1) SU635286A1 (en)

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