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GB1475995A - Liquid pumps - Google Patents

Liquid pumps

Info

Publication number
GB1475995A
GB1475995A GB3356373A GB3356373A GB1475995A GB 1475995 A GB1475995 A GB 1475995A GB 3356373 A GB3356373 A GB 3356373A GB 3356373 A GB3356373 A GB 3356373A GB 1475995 A GB1475995 A GB 1475995A
Authority
GB
United Kingdom
Prior art keywords
level
fuel
motor
july
thermistors
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
GB3356373A
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.)
Simms Group Research and Development Ltd
Original Assignee
Simms Group Research and Development 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 Simms Group Research and Development Ltd filed Critical Simms Group Research and Development Ltd
Priority to GB3356373A priority Critical patent/GB1475995A/en
Priority to FR7425777A priority patent/FR2237073B1/fr
Publication of GB1475995A publication Critical patent/GB1475995A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • 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
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • 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
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F04D29/606—Mounting in cavities
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid 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
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

1475995 Centrifugal pumps SIMMS GROUP RESEARCH & DEVELOPMENT Ltd 5 July 1974 [13 July 1973] 33563/73 Heading F1C A submersible pump, e.g. for pumping fuel from tanks, is driven by an electric motor having its commutator 21, Fig. I, and brushes (not shown) normally submerged in fuel at a level 30. To maintain the fuel in the motor housing at the level 30, the pump inlet 26, Fig. 3, is extended vertically by a tube 29. Moreover, the outlet conduit (25), Fig. 4 (not shown) extends to a similar level and is connectible to a supply pipe. A pair of series-connected thermistors (39, 40), Fig. 5 (not shown) may be arranged in the motor housing, one above and one below the level 30, so that if the level should fall below level 30 the electrical potential between the thermistors alters and this is sensed by a Schmitt trigger (36) which then opens an electronic switch (34) to shut down the motor and thereby avoid the risk of igniting the air/fuel mixture in the motor casing.
GB3356373A 1973-07-13 1973-07-13 Liquid pumps Expired GB1475995A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3356373A GB1475995A (en) 1973-07-13 1973-07-13 Liquid pumps
FR7425777A FR2237073B1 (en) 1973-07-13 1974-07-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3356373A GB1475995A (en) 1973-07-13 1973-07-13 Liquid pumps

Publications (1)

Publication Number Publication Date
GB1475995A true GB1475995A (en) 1977-06-10

Family

ID=10354566

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3356373A Expired GB1475995A (en) 1973-07-13 1973-07-13 Liquid pumps

Country Status (2)

Country Link
FR (1) FR2237073B1 (en)
GB (1) GB1475995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU695066B2 (en) * 1995-02-06 1998-08-06 Sterling Fluid Systems (Germany) Gmbh Side channel pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU695066B2 (en) * 1995-02-06 1998-08-06 Sterling Fluid Systems (Germany) Gmbh Side channel pump

Also Published As

Publication number Publication date
FR2237073B1 (en) 1980-01-11
FR2237073A1 (en) 1975-02-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee