GB1332390A - Liquid-pumping apparatus - Google Patents

Liquid-pumping apparatus

Info

Publication number
GB1332390A
GB1332390A GB4169071A GB4169071A GB1332390A GB 1332390 A GB1332390 A GB 1332390A GB 4169071 A GB4169071 A GB 4169071A GB 4169071 A GB4169071 A GB 4169071A GB 1332390 A GB1332390 A GB 1332390A
Authority
GB
United Kingdom
Prior art keywords
pressure
orifice
spring
sealing block
valve
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
GB4169071A
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.)
Chandler Evans Inc
Original Assignee
Chandler Evans Inc
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 Chandler Evans Inc filed Critical Chandler Evans Inc
Publication of GB1332390A publication Critical patent/GB1332390A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • F04C11/006—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle having complementary function
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0019—Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

1332390 Rotary pumps CHANDLER EVANS Inc 7 Sept 1971 [17 Sept 1970] 41690/71 Heading F1F In pumping apparatus for a liquid such as gasturbine fuel a centrifugal pump 20 is connected in series with gear pump 24 and driven simultaneously with the latter by a shaft 40, the pump 24 being unloaded when the pressure P F at an outlet 14 reaches a predetermined value. A sealing block 46 is urged towards the gears 32, 34 by a spring 52 and defines a discharge chamber 47 communicating with the outlet 14 and a valve chamber 62 through an outlet 26 and an orifice 58, respectively. While the pressure P F is less than the predetermined value a valve-member 74 closes an orifice 70 so that the said pressure helps the spring 52 to hold the sealing block against the gears. When the said value is reached the pressure P F acting upon spring-loaded bellows 78 by way of a filter 27 withdraws the valve member from the orifice 70, the consequent pressuredrop across the orifice 58 causing retraction of the sealing block. A pressure-relief conduit 28 is controlled by a check-valve 30. In a second embodiment, Fig.2, spring-loaded wedges 106, 108 replace the spring 52, shafts 112 serving as pistons being subjected to the pressure P F through an orifice 120, which causes a loss of pressure when the orifice 70 is opened. A somewhat . similar arrangement is made in a third embodiment, Fig.3 (not shown), the wedges being replaced by struts (216) sliding on oblique fixedsurfaces and engaged by spring-loaded pistons (210, 212) subjected to the pressure in the chamber 47 through an orifice (204) in the sealing block. The wedges 106,108 may be replaced by a single wedge (not shown). Each embodiment may include check plates for the gears.
GB4169071A 1970-09-17 1971-09-07 Liquid-pumping apparatus Expired GB1332390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7337870A 1970-09-17 1970-09-17

Publications (1)

Publication Number Publication Date
GB1332390A true GB1332390A (en) 1973-10-03

Family

ID=22113348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4169071A Expired GB1332390A (en) 1970-09-17 1971-09-07 Liquid-pumping apparatus

Country Status (4)

Country Link
US (1) US3635602A (en)
CA (1) CA945811A (en)
DE (1) DE2144977A1 (en)
GB (1) GB1332390A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2449177C1 (en) * 2010-12-17 2012-04-27 Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") Centrifugal gear pump
RU2472040C1 (en) * 2011-07-29 2013-01-10 Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") Combined centrifugal gear pump
RU2472041C1 (en) * 2011-07-29 2013-01-10 Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") Combined centrifugal gear pump
RU2656479C1 (en) * 2017-06-20 2018-06-05 Публичное акционерное общество "ОДК-Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") Method of working the oil aggregate of the turboretactive engine (tre) and the oil-agriculture tre operating this method (options)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941505A (en) * 1973-06-25 1976-03-02 Trw Inc. Method and apparatus for pumping fuel
DE3211726A1 (en) * 1981-03-31 1983-02-03 Kayabakogyokabushikikaisha, Tokyo SEALING BLOCK FOR GEAR PUMPS OR MOTORS
US5051065A (en) * 1989-04-07 1991-09-24 Vickers, Incorporated Power transmission
US9206775B2 (en) 2012-02-01 2015-12-08 United Technologies Corporation Fuel preheating using electric pump
US9316157B2 (en) 2012-02-01 2016-04-19 Hamilton Sundstrand Corporation Fuel system for starting an APU using a hybrid pump arrangement
GB201309049D0 (en) * 2013-05-20 2013-07-03 Rolls Royce Engine Control Systems Ltd Fuel pumping unit
RU2555602C1 (en) * 2014-07-24 2015-07-10 Открытое Акционерное Общество "Уфимское Моторостроительное Производственное Объединение" (Оао "Умпо") Centrifugal gear-type pump
DE112015003595T5 (en) * 2014-08-04 2017-08-03 Imo Industries, Inc. Integrated double pump for organic working fluid
RU2561348C1 (en) * 2014-09-01 2015-08-27 Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Российская федерация Республика Башкортостан Centrifugal gear-type pump
US10309396B2 (en) * 2016-04-27 2019-06-04 Deere & Company Positive displacement pump including an unloading device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927799A (en) * 1932-03-07 1933-09-19 Goulds Pumps Rotary pump
US3026929A (en) * 1954-03-17 1962-03-27 Chandler Evans Corp Compound centrifugal and gear fuel pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2449177C1 (en) * 2010-12-17 2012-04-27 Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") Centrifugal gear pump
RU2472040C1 (en) * 2011-07-29 2013-01-10 Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") Combined centrifugal gear pump
RU2472041C1 (en) * 2011-07-29 2013-01-10 Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") Combined centrifugal gear pump
RU2656479C1 (en) * 2017-06-20 2018-06-05 Публичное акционерное общество "ОДК-Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") Method of working the oil aggregate of the turboretactive engine (tre) and the oil-agriculture tre operating this method (options)

Also Published As

Publication number Publication date
US3635602A (en) 1972-01-18
DE2144977A1 (en) 1972-03-23
CA945811A (en) 1974-04-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee
PCPE Delete 'patent ceased' from journal

Free format text: 4859,PAGE 1222

PCNP Patent ceased through non-payment of renewal fee