GB1077471A - Improvements in or relating to liquid-fuel supply systems - Google Patents

Improvements in or relating to liquid-fuel supply systems

Info

Publication number
GB1077471A
GB1077471A GB113564A GB113564A GB1077471A GB 1077471 A GB1077471 A GB 1077471A GB 113564 A GB113564 A GB 113564A GB 113564 A GB113564 A GB 113564A GB 1077471 A GB1077471 A GB 1077471A
Authority
GB
United Kingdom
Prior art keywords
pump
fuel
pressure
positive
dynamic
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
GB113564A
Inventor
Robert Spurgeon Wood
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.)
Plessey UK Ltd
Original Assignee
Plessey UK 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 Plessey UK Ltd filed Critical Plessey UK Ltd
Priority to GB113564A priority Critical patent/GB1077471A/en
Priority to SE22365A priority patent/SE322089B/xx
Priority to DE19651476841 priority patent/DE1476841A1/en
Publication of GB1077471A publication Critical patent/GB1077471A/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
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/22—Fuel supply systems

Landscapes

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

Abstract

1,077,471. Fluid-pressure servomotor systems. PLESSEY-UK Ltd. Jan. 8, 1965 [Jan. 10, 1964], No. 1135/64. Heading G3P. [Also in Division F1] A liquid fuel supply system, for example of a gas turbine engine, comprises a positivedisplacement fuel pump and a dynamic pump interposed between the source of fuel and the inlet of the positive-displacement pump, the dynamic pump being constructed and arranged to be driven in such a manner as to supply, even at moderate engine speeds, at least the major part of the required fuel delivery pressure, the pressure contribution of the dynamic pump being arranged to be controlled by the difference between the inlet and outlet pressures of the positivedisplacement pump in such a manner as to prevent at higher speeds the pressure contributed by the positive-displacement pump from falling below a predetermined value. In the fuel system shown fuel from a supply tank passes through line 1 to a dynamic centrifugal pump 2 which delivers fuel through an adjustable throttle 3 to the inlet 4 of a positive-displacement gear pump 5, the fuel delivered thereby passing through a control system to the engine. The pressure rise across the positive-displacement pump 5 is measured in a comparator 7 which gives a signal which is transmitted through line 8 to control the throttle 3. When the pressure difference across the pump 5 tends to fall below a predetermined value the throttle aperture is caused to be reduced and conversely.
GB113564A 1964-01-10 1964-01-10 Improvements in or relating to liquid-fuel supply systems Expired GB1077471A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB113564A GB1077471A (en) 1964-01-10 1964-01-10 Improvements in or relating to liquid-fuel supply systems
SE22365A SE322089B (en) 1964-01-10 1965-01-08
DE19651476841 DE1476841A1 (en) 1964-01-10 1965-01-09 Liquid fuel feed system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB113564A GB1077471A (en) 1964-01-10 1964-01-10 Improvements in or relating to liquid-fuel supply systems

Publications (1)

Publication Number Publication Date
GB1077471A true GB1077471A (en) 1967-07-26

Family

ID=9716780

Family Applications (1)

Application Number Title Priority Date Filing Date
GB113564A Expired GB1077471A (en) 1964-01-10 1964-01-10 Improvements in or relating to liquid-fuel supply systems

Country Status (3)

Country Link
DE (1) DE1476841A1 (en)
GB (1) GB1077471A (en)
SE (1) SE322089B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2971563A1 (en) * 2011-02-15 2012-08-17 Snecma Method for determining whether hydraulic fuel supply pump or low pressure hydraulic pump of aircraft is out-of-service or not, involves determining operating state of pumps if fluid pressure is low for rotational speeds of turbomachine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2971563A1 (en) * 2011-02-15 2012-08-17 Snecma Method for determining whether hydraulic fuel supply pump or low pressure hydraulic pump of aircraft is out-of-service or not, involves determining operating state of pumps if fluid pressure is low for rotational speeds of turbomachine

Also Published As

Publication number Publication date
DE1476841A1 (en) 1969-07-31
SE322089B (en) 1970-03-23

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