FR3039210B1 - ICING PROTECTED FUEL DOSER - Google Patents

ICING PROTECTED FUEL DOSER Download PDF

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Publication number
FR3039210B1
FR3039210B1 FR1556909A FR1556909A FR3039210B1 FR 3039210 B1 FR3039210 B1 FR 3039210B1 FR 1556909 A FR1556909 A FR 1556909A FR 1556909 A FR1556909 A FR 1556909A FR 3039210 B1 FR3039210 B1 FR 3039210B1
Authority
FR
France
Prior art keywords
metering
slot
passage section
metering device
flow position
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.)
Active
Application number
FR1556909A
Other languages
French (fr)
Other versions
FR3039210A1 (en
Inventor
Jean-Marie Brocard
Regis Michel Paul Deldalle
Anne Marie Cecile Barreau
Pierre Charles Mouton
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR1556909A priority Critical patent/FR3039210B1/en
Priority to EP16757279.1A priority patent/EP3325787B1/en
Priority to CN201680053698.0A priority patent/CN108026838B/en
Priority to PCT/FR2016/051848 priority patent/WO2017013347A1/en
Priority to US15/746,227 priority patent/US10309312B2/en
Publication of FR3039210A1 publication Critical patent/FR3039210A1/en
Application granted granted Critical
Publication of FR3039210B1 publication Critical patent/FR3039210B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02C7/232—Fuel valves; Draining valves or systems
    • 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
    • F02C7/224—Heating fuel before feeding to the burner
    • 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
    • F02C7/236—Fuel delivery systems comprising two or more pumps
    • 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
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/26—Control of fuel supply
    • F02C9/263—Control of fuel supply by means of fuel metering valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2200/00—Mathematical features
    • F05D2200/20—Special functions
    • F05D2200/24—Special functions exponential
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/292—Three-dimensional machined; miscellaneous tapered
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/90—Variable geometry
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/607—Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Abstract

L'invention concerne un doseur de carburant (12-1) comprenant un élément mobile (22) comportant au moins une section de passage de carburant (32) s'ouvrant en amont vers un conduit d'alimentation en carburant et débouchant à l'aval vers un conduit d'utilisation par une fente de dosage (34) à profil évasé ayant une section de passage étroit s'évasant jusqu'à une section de passage large, l'élément mobile étant apte à être déplacé par rapport à un élément fixe (24) entre une position de petit débit dans laquelle la fente de dosage est en grande partie obstruée et une position de grand débit dans laquelle la fente de dosage est en grande partie découverte, la fente de dosage étant pratiquée dans l'élément fixe ou dans l'élément mobile et son obstruction étant obtenue par le recouvrement de la fente par une paroi de l'élément mobile ou de l'élément fixe. Le doseur comporte en outre des moyens (40) pour obstruer au moins en partie la section de passage étroit de la fente de dosage lorsque le doseur est en position de grand débit. L'invention vise également un circuit d'alimentation en carburant d'un moteur d'aéronef comportant un tel doseur.The invention relates to a fuel metering device (12-1) comprising a movable element (22) comprising at least one fuel passage section (32) opening upstream towards a fuel supply duct and opening into the downstream to a use duct via a metering slot (34) with a flared profile having a narrow passage section widening to a wide passage section, the movable member being able to be moved relative to an element fixed (24) between a low flow position in which the metering slot is largely obstructed and a high flow position in which the metering slot is largely exposed, the metering slot being made in the fixed member or in the mobile element and its obstruction being obtained by covering the slot with a wall of the mobile element or of the fixed element. The metering device further comprises means (40) for at least partially obstructing the narrow passage section of the metering slot when the metering device is in the high flow position. The invention also relates to a fuel supply circuit for an aircraft engine comprising such a metering device.

FR1556909A 2015-07-21 2015-07-21 ICING PROTECTED FUEL DOSER Active FR3039210B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR1556909A FR3039210B1 (en) 2015-07-21 2015-07-21 ICING PROTECTED FUEL DOSER
EP16757279.1A EP3325787B1 (en) 2015-07-21 2016-07-19 Fuel metering device protected against icing
CN201680053698.0A CN108026838B (en) 2015-07-21 2016-07-19 Icing-preventive fuel metering device
PCT/FR2016/051848 WO2017013347A1 (en) 2015-07-21 2016-07-19 Fuel metering device protected against icing
US15/746,227 US10309312B2 (en) 2015-07-21 2016-07-19 Fuel metering device protected against icing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1556909A FR3039210B1 (en) 2015-07-21 2015-07-21 ICING PROTECTED FUEL DOSER

Publications (2)

Publication Number Publication Date
FR3039210A1 FR3039210A1 (en) 2017-01-27
FR3039210B1 true FR3039210B1 (en) 2021-09-10

Family

ID=54848678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1556909A Active FR3039210B1 (en) 2015-07-21 2015-07-21 ICING PROTECTED FUEL DOSER

Country Status (1)

Country Link
FR (1) FR3039210B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5205537A (en) * 1984-01-12 1993-04-27 Pfeiffer Robert W Valve with enhanced rangeability and logarithmic flow characteristic
US5772182A (en) * 1996-04-17 1998-06-30 United Technologies Corporation Fuel flow control valve
EP1979593B1 (en) * 2006-02-03 2017-12-06 Rolls-Royce Corporation Gas turbine engine fuel system with fuel metering valve
US7784487B2 (en) * 2007-10-24 2010-08-31 Honeywell International Inc. Fuel metering valve assembly including thermal compensation mechanism

Also Published As

Publication number Publication date
FR3039210A1 (en) 2017-01-27

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