GB969267A - Improvements in or relating to ejector pumps - Google Patents

Improvements in or relating to ejector pumps

Info

Publication number
GB969267A
GB969267A GB1320762A GB1320762A GB969267A GB 969267 A GB969267 A GB 969267A GB 1320762 A GB1320762 A GB 1320762A GB 1320762 A GB1320762 A GB 1320762A GB 969267 A GB969267 A GB 969267A
Authority
GB
United Kingdom
Prior art keywords
valve
pump
nozzle box
vent
suction pipe
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.)
Expired
Application number
GB1320762A
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.)
Hick Hargreaves and Co Ltd
Original Assignee
Hick Hargreaves and 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 Hick Hargreaves and Co Ltd filed Critical Hick Hargreaves and Co Ltd
Priority to GB1320762A priority Critical patent/GB969267A/en
Publication of GB969267A publication Critical patent/GB969267A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/04—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing elastic fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

969,267. Ejectors. HICK, HARGREAVES & CO. Ltd., and F. WALKER. Feb. 19, 1963 [April 5, 1962], No. 13207/62. Heading F1E. An ejector pump has a non-return valve 10 operated solely by the pressure difference across the valve and located in a suction pipe 13 and an automatic venting and vacuum-breaking valve 23 mounted in the nozzle box 4. Water pumped by pump 1 from tank 2 exhausts the air present in nozzle box 4 through vent 21 until the vent is closed by a ball float 23 constrained in a cage 22. If pump 1 stops, the ball float allows air to pass through the nozzle box and the nozzle plate 5 to close valve disc 10 which prevents water being drawn through the suction pipe into a steam condenser. Disc 10, which may be faced with a resilient material, e.g. rubber, is either secured to a spindle 11 which slides in bearings 12 or may slide on a fixed spindle.
GB1320762A 1962-04-05 1962-04-05 Improvements in or relating to ejector pumps Expired GB969267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1320762A GB969267A (en) 1962-04-05 1962-04-05 Improvements in or relating to ejector pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1320762A GB969267A (en) 1962-04-05 1962-04-05 Improvements in or relating to ejector pumps

Publications (1)

Publication Number Publication Date
GB969267A true GB969267A (en) 1964-09-09

Family

ID=10018786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1320762A Expired GB969267A (en) 1962-04-05 1962-04-05 Improvements in or relating to ejector pumps

Country Status (1)

Country Link
GB (1) GB969267A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019252A1 (en) * 1979-05-19 1980-11-26 Dr. C. Otto & Co. GmbH Multiple outlet pressure nozzle for coke ovens
FR2663373A1 (en) * 1990-06-18 1991-12-20 Cognon Jean Marie Method and device for establishing a partial vacuum in a zone of permeable ground isolated from the atmosphere by a leaktight membrane
EP0668445A2 (en) * 1994-02-16 1995-08-23 Noritsu Koki Co., Ltd. Apparatus for vacuum absorption
CN117090792A (en) * 2023-10-19 2023-11-21 江苏飞跃泵业股份有限公司 Vertical rotary jet pump with rotor cavity air rapid discharging function

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019252A1 (en) * 1979-05-19 1980-11-26 Dr. C. Otto & Co. GmbH Multiple outlet pressure nozzle for coke ovens
FR2663373A1 (en) * 1990-06-18 1991-12-20 Cognon Jean Marie Method and device for establishing a partial vacuum in a zone of permeable ground isolated from the atmosphere by a leaktight membrane
EP0668445A2 (en) * 1994-02-16 1995-08-23 Noritsu Koki Co., Ltd. Apparatus for vacuum absorption
EP0668445A3 (en) * 1994-02-16 1997-09-24 Noritsu Koki Co Ltd Apparatus for vacuum absorption.
US5730585A (en) * 1994-02-16 1998-03-24 Noritsu Koki Co., Ltd. Apparatus for vacuum absorption with retracting reverse flow protection device
CN1078685C (en) * 1994-02-16 2002-01-30 诺日士钢机株式会社 Apparatus for vacuum absorption
CN117090792A (en) * 2023-10-19 2023-11-21 江苏飞跃泵业股份有限公司 Vertical rotary jet pump with rotor cavity air rapid discharging function
CN117090792B (en) * 2023-10-19 2024-01-30 江苏飞跃泵业股份有限公司 Vertical rotary jet pump with rotor cavity air rapid discharging function

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