airframe presentation_ aircraft fuel systems_ fuel system operation_chap 15_sec b

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9/17/20141CLAUDIO J. MARTINAAircraft fuel systemsfuel system OPERATION : AIRFRAME Chap 15 section B9/17/20142CLAUDIO J. MARTINAFuel system operationFuel system operation design must be:Positive and reliable with Fuel flow through all phases of the flight9/17/2014CLAUDIO J. MARTINA3Fuel system operationFuel system operation design must be reliable with Fuel flow through all phases of the flight:Including:Changes in altitudeViolent manoeuvresSudden accelerationSudden deceleration

9/17/2014CLAUDIO J. MARTINA4Fuel system operationFuel system operation design must be :Reasonable free from any tendency to VAPOR LOCK

9/17/2014CLAUDIO J. MARTINA5Fuel system operationFuel system must have:Tank quantity gaugesFuel pressure gaugesWarning signals

9/17/2014CLAUDIO J. MARTINA6FUEL SYSTEM OPERATION

9/17/2014CLAUDIO J. MARTINA7Small Single Engine Aircraft systemsSEVERAL TYPES OF FUEL SYSTEM , DEPENDING ON:IF IT USES A CARBURETORIF IT USES A FUEL INJECTOR

9/17/2014CLAUDIO J. MARTINA8Small Single Engine Aircraft systemsGRAVITY FEED SYSTEMSMALL HIGH WING SINGLE ENGINE TRAINING TYPE AIRPLANENORMALLY THEY USE:TWO FUEL TANKSONE IN EACH WINGTWO TANKS OUTLET CONNECTED TO A SELECTOR VALVEFUEL CAN BE DRAWN FROM EITHER TANL INDIVIDUALLYBOTH TANKS CAN FEED THE ENGINE AT THE SAME TIME

9/17/2014CLAUDIO J. MARTINA9Small Single Engine Aircraft systemsGRAVITY FEED SYSTEMBECAUSE BOTH TANKS CAN FEED THE ENGINE AT THE SAME TIME , SPACE ABOVE THE TANKS ARE INTERCONNECTED AND VENTED OUTSIDE THE AIRPLANEVENT LINE IS FITTED UNDERSIDE OF THE WING WHERE POSSIBILITY OF FUEL SIPHONING IS MINIMIZE

9/17/2014CLAUDIO J. MARTINA10Small Single Engine Aircraft systemsGRAVITY FEED SYSTEMAFTER THE FUEL PASSSES THE SELECTOR VALVE FUEL PASSES THROUGH THE MAIN STRAINER.FUEL FOR THE PRIMER IS TAKEN FROM THE MAIN STRAINER

9/17/2014CLAUDIO J. MARTINA11PUMP FEED SYSTEMS

9/17/2014CLAUDIO J. MARTINA12PUMP FEED SYSTEMS9/17/2014CLAUDIO J. MARTINA13LOW LEVEL WING AIRPLANES CANNOT USE GRAVITY FEED FUEL TO YHE CARBURETOR.THEY USE:ENGINE DRIVEN PUMPELECTRIC PUMP PUMP FEED SYSTEMS9/17/2014CLAUDIO J. MARTINA14SELECTOR VALVE CAN SELECT ANY TANK INDIVIDUALCAN SHUTT OFF FIUEL TO THE ENGINE

DOES NOT HAVE A BOTH POSITION TO PREVENT THE PUMP TO CAVITATE ( SUCKING AIR FROM AN EMPTY TANK)PUMP FEED SYSTEMS9/17/2014CLAUDIO J. MARTINA15AFTER THE SELECTOR VALVE FUEL FLOWS THROUGH THE MAIN STRAINER INTO THE ELECTRIC FUEL PUMPENGINE DRIVEN PUMP IS PARALLEL WITH THE ELECTRIC PUMPELECTRIC PUMP IS USED FOR STARTING ONLYBACK-UP IN CASE OF ENGINE DRIVEN PUMP FAILUREASSURES FUELFLOW WHEN SWITCHING FROM ONE TANK TO ANOTHERFUEL SYSTEM OPERATION

9/17/2014CLAUDIO J. MARTINA16PUMP FEED SYSTEMS9/17/2014CLAUDIO J. MARTINA17High wing systems :FUEL INJECTION SYSTEMTeledyne Continental system returns part of fuel from Engine driven fuel pump back to the tank.Returning fuel back to the tank prevents that all vapors are purging back in the tank.Vapors can block the fuel system.FUEL SYSTEM OPERATION


9/17/2014CLAUDIO J. MARTINA19FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA20TeleDyne Continental fuel injection systemUses :An electric Vane type pumpAn engine Driven fuel pump.Excess fuel is returned to the selector valve FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA21TeleDyne Continental fuel injection systemThe selector valve directs fuel from the accumulator tank to the engineAt same time directs fuel vapor from engine driven pump back to the selected resevoir tank.The vapor than returns to the wing tank that supplies the resevoir tankFUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA22Electric aux pump:Picks up fuel from discharge side of r=the selector valveForces it through a strainer to the inlet of the engine Driven fuel pump.Fuel flows from the engine driven pump to the fuel-air controlExcess fuel flows to the inlet side of the pump.Vapor is returned to the selector valve.

FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA23RSA fuel injection system :Uses an electric fuel pump to deliver fuel to the engines.Does not return fuel to the tanks.This system is used on both single and multiengine aircraft.

FUEL SYSTEM OPERATION


9/17/2014CLAUDIO J. MARTINA25FUEL SYSTEM OPERATIONWobble pump :Hand Operated Fluid pressure for starting the engines9/17/2014CLAUDIO J. MARTINA26FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA27Cross feed:The engine is drawing fuel from the opposite wing.

FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA28Cross feed valve :A valve used in large multi engine aircraft with multi fuel tank systems that in conjuctions with the crossfeed manifold , allows fuel from one any tank to be supplied to any engine .Each tank in the system has one cross feed valve

FUEL SYSTEM OPERATIONFuel Quantity gauge measures by a liquido meter Consists of liquidometer unit , electronically connected to the fuel gauge.9/17/2014CLAUDIO J. MARTINA29FUEL SYSTEM OPERATIONFuel Instrumentation

FUEL QUANTITYFUEL PRESSUREFUEL FLOW GAUGE9/17/2014CLAUDIO J. MARTINA30FUEL SYSTEM OPERATIONFuel Quantity gauge :Shows the total amount of fuel in the tank.Fuel pressure gauge : show the pressure produced by the fuel pump.Fuel flow = a differential pressure gaugeCalibrated in gallons per hour or lbs per hour



9/17/2014CLAUDIO J. MARTINA33FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA34Jet transport A/C Fuel systemsINTEGRAL TANKS ( part of the Wing)BLADDER TYPE TANK.FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA35Jet transport A/C Fuel systemsFUEL AND DUMP MANIFOLDUSED TO FILL AND EMPTY THE TANKS.

FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA36Jet transport A/C Fuel systemsPRESSURE FUELING : TROUGH A SINGLE FUELING RECEPTACLEJet transport A/C Fuel systems9/17/2014CLAUDIO J. MARTINA37PRESSURE SHUTOFF VALVESSENSES THE AMOUTH OF FUEL AND SHUTOFF THE FUELING VALVE , WHICH PREVENTS THE TANK FROM BEING OVERFILLED OR DAMAGED.Jet transport A/C Fuel systems9/17/2014CLAUDIO J. MARTINA38DEFUELLING THE AIRPLANE TANKS:BY CONNECTING FUEL RECEIVING TRUCK CLOSE THE SHUTOFF VALVESOPEN TE CROSSFEED VALVE FROM THE TANK TO BE EMPTIEDJet transport A/C Fuel systems9/17/2014CLAUDIO J. MARTINA39DEFUELLING THE AIRPLANE TANKS:USING THE A/C BOOST PUMPSSUCTION FROM THE RECEIVING TRUCK.Jet transport A/C Fuel systems9/17/2014CLAUDIO J. MARTINA40FUEL DUMPING IN FLIGHT:USE THE FUEL DUMP VALVEJet transport A/C Fuel systems9/17/2014CLAUDIO J. MARTINA41INFLIGHT FUEL JETTISON :FROM INDIVIDUAL WING TIPFROM BOTH TIPSJet transport A/C Fuel systems9/17/2014CLAUDIO J. MARTINA42Fuel dump possible from 2 separate systems.Individual wing fuel dumping to control fuel balanceJet transport A/C Fuel systems9/17/2014CLAUDIO J. MARTINA43MOTIVE FLOW PROCESS:use of bernouilli principle to route high pressure fuel through ejectors in a 3 tank fuel system.Ejector pumps = venturi with no moving partsFUEL SYSTEM OPERATION

9/17/2014CLAUDIO J. MARTINA44Helicopter Fuel systems9/17/2014CLAUDIO J. MARTINA45Light turbine powered helicopter systemSingle bladder type fuel cellsLocation cells: below and aft of rear passenger seat.Installed in the tank : 2 submersible type boost pumps.

Helicopter Fuel systems9/17/2014CLAUDIO J. MARTINA46Boost pumps outlet portas are interconnected to form a single line to the engine.Either pump can supply fuel to power the engine

Helicopter Fuel systems9/17/2014CLAUDIO J. MARTINA47Pressure switch in outlet port of each pump will iluminate FUEL BOOST CAUTION LIGHT in case of pump failure

Helicopter Fuel systems9/17/2014CLAUDIO J. MARTINA48Light turbine powered helicopter Only one fuel tankUsually located on the center of gravity of helicopter

Helicopter Fuel systems9/17/2014CLAUDIO J. MARTINA49Light turbine powered helicopter System do not use selector valveHas en electrically operated shuttoff valve installed in line running from tank to engineFilters are equiped with a warning light to indicate clogging

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA50BASIC FUEL SYSTEM COMPONENETSTANK( BLADDER, WELDED/RIVITED,INTEGRAL)LINESVALVES ( SELECTOR , CHECK VALVES)PUMPSFILTERING UNITSGAUGESWARNING SYSTEMPRIMER (PISTON ENGINES)FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA51EXTRA FUEL SYSTEM COMPONENTSCENTRAL REFUELING PROVISIONSFUEL DUMP VALVESMEANS FOR TRANSFERRING FUEL

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA52FUEL TANKS VARY:BY LOCATIONBY SIZEBY SHAPEBY CONSTRUCTION OF FUEL TANK.BY TYPE AND INTENDED USE OF A/C

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA53FUEL TANKS ARE MADE FROM MATERIALS THAT WILL NOT REACT CHEN=MICALLY WITH ANY AVIATION FUEL AND HAVE A NUMBER OF COMMON FEATURES.

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA54MOST FUEL TANKS HAVE A SUMP AND DRAIN : PROVIDED AT THE LOWEST POINT IN THE TANK , TO DRAIN FOR MOISTURETOP OF EACH TANK IS VENTED TO THE ATMOSPHERE.

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA55BAFFLES IN FUEL TANKS : USED TO PREVENT FUEL FROM SURGING CAUSED BY CHANGES IN THE ATTITUDE OF AIRCRAFT

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA56BAFFLES IN FUEL TANKS :

FUEL SYSTEM COMPONENTS

9/17/2014CLAUDIO J. MARTINA57FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA58FLAPPER VALVES:= CHECK VALVEPREVENT THE FUEL FROM FLOWING AWAY FROM THE BOOST POMP OR TANK OUTLET WHEN A/C IS IN A HIGH G MANEUVER.

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA59EXPANSION SPACE ABOVE FUEL:PROVIDED IN THE FUEL TANKS TO ALLOW FOR AN INCREASE IN FUEL VOLUME DUE TO INCREASES IN ITS TEMPERATURE

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA60DUMP VALVES:MAKE IT POSSIBLE TO DUMP /JETTISON FUEL DURING FLIGHT IN ORDER TO REDUCE WEIGHT OF A/C TO A SPECIFIC LDG WEIGHT.

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA61OPERATING CONTROL OF DUMP VALVES:LOCATED WITHIN REACH OF PILOT, COPILOT OR FLGHT ENGINEER


9/17/2014CLAUDIO J. MARTINA62FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA63WELDED OR RIVETED GASOLINE TANKS :USED BY OLDER AIRCRAFTTHESE TANKS HAVE BEEN REPLACED ALMOST TOTALLY BYINTEGRAL TANKSBLADDER TYPE TANKSREASON ; DUE TO LIMITATATIONS OF WEIGHT AND SPACE

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA64SMALLER TANKS :MADE OF THIN SHEET STEEL COATED WITH ALLOY OF LEAD AND TIN.TERNEPLATE = A COATING OF 20 PERCENT TIN AND 80 PERCENT LEAD APPLIED TO SHEET STEEL TO AID IN THE PREVENTION OF CORROSION

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA65TERNEPLATE TANKS ADVANTAGE :WEIGHT OF TERNEPLATE TANK IS MORE THAN OF AN ALUMINIUM ALLOY TANK , BUT FOR THIS TYPE OF AIRCRAFT THE LOW COST ADVANTAGE OVERCOMES ITS WEIGHT DISADVANTAGE

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA66LARGER FUEL TANKS OF OLDER AIRCRAFT :MADE OF EITHER 3003 OR 5052 ALUMINIUM ALLOYBOTH MATERIAL ARE RELATIVELY LIGHTWEIGHTBOTH MATERIAL ARE EASILY WELDED.

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA67RIGID FUEL TANKS:MUST BE SUPPORTED IN THE A/C STRUCTURE WITH HOLD DOWN STRAPS.TO PREVENT THE TANK FROM SHIFTING DURING ANY MANEUVERALL TANK MOUNTS MUST BE PADDED WITH SOME TYPE OF MATERIAL, USUALLY FELT.TO PREVENT THE TANK FROM SHAFING AGAINST STRUCTURE

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA68INTEGRAL FUEL TANKS:

ADVANTAGE : USING A MAXIMUM AMOUNT OF SPACE FOR THE FUEL AND HAVING A MINIMUM AMOUNT OF WEIGHT.MOST TYPICAL LIGHT AIRCRAFT INTEGRAL TANKS OCUPIES THE LEADING EDGE PORTION OF THE WING FROM THE FRONT SPAR FORWARD AND IT IS SEALED AT BOTH ENDS AND ALL ALONG THE SPAR WITH TWO PART SEALANT

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA69INTEGRAL FUEL TANKS:

FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA702 COMPONENTS SEALANT:


9/17/2014CLAUDIO J. MARTINA71FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA72BLADDER TANKS =SUBSTITUTE FOR A WELDED FUEL TANKSUCESSFULLY USED FOR SMALL AND LARGE AIRCRAFTFUEL SYSTEM COMPONENTS

9/17/2014CLAUDIO J. MARTINA73FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA74BLADDER TANKS MADE OF NEOPRENE IMPREGNATED CLOTH THAT IS SNAPPED OR LACED INTO THE FUEL CELL CAVITY IN THE WING OF THE AIRPLANE


9/17/2014CLAUDIO J. MARTINA75FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA76FUEL TANK FILLER CAPS:ONLY TANK CAP APPROVED FOR PARTICULAR A/C SHOULD BE USEDCHANGE OF FUEL ADAPTOR CONSTITUTES A MAJOR ALTERATION ALTERATION REQUIRES APPROVAL OF A/C MANUFACTURER AND/OR FAAFLUID LINES AND FITTINGS9/17/2014CLAUDIO J. MARTINA77METAL TUBINGMADE OF ALUMINIUM ALLOYFLEXIBLE HOSESSYNTHETIC RUBBERTEFLONFUELFLOW REQUIREMENT : determent diameter of the tubing

FLUID LINES AND FITTINGS9/17/2014CLAUDIO J. MARTINA78Rigid fuel lines in aircraft MADE OF 5052 ALUMINIUM ALLOYLINES PASSING THROUGH WHEEL WELLLINES IN THE ENGINE COMPARTMENTMADE OF STAINLESS STEELTO ASSURE AGAINST DAMAGE FROM EITHER ABRASION OR HEAT

FLUID LINES AND FITTINGS9/17/2014CLAUDIO J. MARTINA79FITTINGS AN FLARE

MS FLARE

FLARELESS

FLUID LINES AND FITTINGS9/17/2014CLAUDIO J. MARTINA80FITTINGS & LINESNECESSARY TO FABRICATE LINE IN SHOPMUST USE CORRECT MATERIAL FOR LINESNO SUBSTITUTE FITTINGS WITHOUT SPECIFIC APPROVAL OF MANUFACTURER OR FAA

FLUID LINES AND FITTINGS9/17/2014CLAUDIO J. MARTINA81FITTINGS & LINESOVERTIGHTENED A FITTING REASON FOR LEAKAGEFLARELESS FITTING SUSCEPTICLE TO DAMAGEPROPER TIGHTENING OF FLARELESS FITTING ;Tighten the flareless fitting with a wrench only one sixth to , at the most , one third of a turn

FLUID LINES AND FITTINGS9/17/2014CLAUDIO J. MARTINA82FITTINGS & LINESWhen installing flexible lines:Be sure they do not twist when tightening the fittingThe lay line , should be straight and show no indication of spiraling


9/17/2014CLAUDIO J. MARTINA83FUEL SYSTEM COMPONENTS

9/17/2014CLAUDIO J. MARTINA84FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA85FUEL LINES IN ENGINE COMPARTMENT:ENCASES IN A FIRE SLEEVE

PROPER TYPE OF FIRE SLEEVE AS SPECIFIED BY THE A/C MANUFACTURER.FUEL SYSTEM COMPONENTS9/17/2014CLAUDIO J. MARTINA86BASIC REQUIREMENTS FOR ROUTING FUEL LINESSEPARATE WHEN POSSIBLE FUEL LINES FROM ELECTRICAL WIRE BUNDLESSUPORT ALL FUEL LINES AND PREVENT STRAIN ON FITTINGSAT LEAST ONE BEND BETWEEN FITTING OF RIGID TUBINGUSE BONDED CUSHION CLAMPS TO HOLD TUBING.PROTECT ALL FUEL LINES TO BE USED AS A HANDHELDASSURE ALL FUEL LINES ARE ROUTED ALONG THE SIDES OF TOP OF COMPARTMENTSFUEL SYSTEM COMPONENTS

9/17/2014CLAUDIO J. MARTINA87FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA88FUEL VALVESSELECTOR VALVES INSTALLED IN THE FUEL SYSTEM TO PROVIDE A MEANS FOR :FOR SHUTTING OF THE FUEL FLOWFOR TANK AND ENGINE SELECTIONFOR CROSSFEEDFOR FUEL TRANSFER

FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA89FUEL VALVESSELECTOR VALVESHAND OPERATEDMOTOR OPERATEDSOLENOID OPERATED

FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA90FUEL VALVESHAND OPERATED SELECTOR VALVE CONE TYPE SELECTOR VALVEPOPPED TYPE SELECTOR VALVE

FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA91FUEL VALVESHAND OPERATED SELECTOR VALVE CONE TYPE SELECTOR VALVEPOPPED TYPE SELECTOR VALVE


9/17/2014CLAUDIO J. MARTINA92FUEL SYSTEM COMPONENTS

9/17/2014CLAUDIO J. MARTINA93FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA94SOLENOID OPERATED VALVES:ADVANTAGE OVER MOTOR OPERATED VALVES MUCH QUICKER TO OPEN OR CLOSE.


9/17/2014CLAUDIO J. MARTINA95FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA96FUELPUMPSENGINE DRIVENPURPOSE OF AN ENGINE DRIVEN FUEL PUMP DELIVER A PROPERLY PRESSURED , CONTINUOS SUPPLY OF FUEL DURING ENGINE OPERATION.AUXILIARY FUEL PUMP.AID IN ENGINE START AND TO ASSURE A POSITIVE PRESSURE TO THE INLET OF THE ENGINE DRIVEN FUEL PUMP.FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA97FUELPUMPSHAND OPERATED PUMPSWOBBLE PUMPSUSED FOR :BACKING UP AN ENGINE DRIVEN POMPTRANSFERRING FUEL FROM ONE TANK INTO ANOTHER.DOUBLE-ACTING PUMPFUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA98FUEL PUMPSCENTRIFUGAL BOOST PUMP AUX FUEL PUMPFUEL EJECTORSPULSATING ELECTRIC PUMPSVANE TYPE FUEL PUMP ENGINE DRIVENFUEL SYSTEM COMPONENTS






9/17/2014CLAUDIO J. MARTINA104FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA105FILTERSREASON TO ASSURE THAT FUEL SUPPLY IS FREE CONTAMINATIONSTRAINERDRAINAGE AT THE SUMP FOR CHECKING PRESENCE OF WATERSUMP = LOWEST POINT IN THE TANK.FUEL SYSTEM OPERATION


9/17/2014CLAUDIO J. MARTINA107FUEL SYSTEM OPERATION9/17/2014CLAUDIO J. MARTINA108


9/17/2014CLAUDIO J. MARTINA109FUEL HEATER AND ICE PREVENTION SYSTEMS9/17/2014CLAUDIO J. MARTINA110TURBINE POWERED A/C THAT OPERATE AT HIGH ALTITUDES AND LOW TEMPERATURE FOR LONG TIMEPROBLEM:WATER IS CONDENSING OUT OF THE FUEL AND FREEZINGICE CRYSTALS MAY COLLECT ON THE FUEL FILTERRS AND SHUTT OFF FUEL FLOW TO THE ENGINEFUEL HEATER AND ICE PREVENTION SYSTEMS9/17/2014CLAUDIO J. MARTINA111FUEL TEMPERATURE GAUGEINFORM THE FLIGHT ENGINEER WHEN THERE IS A DANGER OF ICE FORMATION.ICE WARNING LIGHTSFUEL HEATER AND ICE PREVENTION SYSTEMS9/17/2014CLAUDIO J. MARTINA112FUEL FILTERSPRESSURE SWITCH CONNECTED ACROSS FILTER ELEMENTPRESSURE SWITCH WILL CLOSE IF THE ELEMENT CLOGSFUEL ICING LIGHT INFORMSTHAT FUEL FILTERS IS CLOGGINGACTION; OPEN FUEL HEAT VALVECOMMPRESSOR BLEED AIR WILL TROUGH FLOW FUEL/AIR HEAT EXCHANGERFUEL HEATER AND ICE PREVENTION SYSTEMS9/17/2014CLAUDIO J. MARTINA113FUEL FILTERSIF FILTER IS CLOGGED WITH DIRT OR UNMELTED ICEA BYPASS VALVE WILL OPENFUEL WILL BYPASS THE FILTERING ELEMENTFUEL SYSTEM OPERATION


9/17/2014CLAUDIO J. MARTINA115FUEL HEATER AND ICE PREVENTION SYSTEMS9/17/2014CLAUDIO J. MARTINA116FUEL SYSTEM INDICATORSFUEL QUANTITY INDICATING SYSTEMSCORK FLOAT ELECTRICAL RATIOMETER TYPE FUEL QUANTITY GAUGESCAPACITANCE TYPE FUEL QUANTITY SYSTEMMAGNETICALLY LOCKED MEASURING STICK

FUEL HEATER AND ICE PREVENTION SYSTEMS9/17/2014CLAUDIO J. MARTINA117FUEL SYSTEM INDICATORSFUEL QUANTITY INDICATING SYSTEMSFUEL FLOW METERFLOW METER INDICATORFUEL PRESSURE GAUGEFUEL TEMPERATURE GAUGESRATIO METER TYPE FUELTEMPERATURE MEASURING SYSTEMFUEL PRESSURE GAUGESBOURDON TUBE PRESSURE GAUGE





9/17/2014CLAUDIO J. MARTINA121REFERENCE DOCUMENTSJEPPESEN CHAPT 15 SECTION BC:\Users\claudio\Dropbox\Amts\Jeppensen ch 15 Fuel syst.docBOOK 15 OF MODULE 11C:\Users\claudio\Dropbox\aircraft docs\training materiaals\easa part 66\Easa modules with text book\Module 11 - Aeroplane aerodynamics, structures and systems\Module 11\15 Airframe Fuel System.pdf9/17/2014CLAUDIO J. MARTINA122Essay questionsCan you describe what constitutes an aircraft fuel system, where does it startand at what point does it change to the engine fuel system? (Remember theanswers are in the back of the book).

9/17/2014CLAUDIO J. MARTINA123Essay questionsCan you list some of the advantages and disadvantages-of fleXible tariks? -9/17/2014CLAUDIO J. MARTINA124Essay questionsWhat are the aims of fuel storage and what methods can we use to store fuel on the aircraft?

9/17/2014CLAUDIO J. MARTINA125Essay questionsSAQ4Write down the precautions that you would want to carry out before entering afuel tank? Answer below.9/17/2014CLAUDIO J. MARTINA126Essay questionsExercises1. Name the three types of storage system.2. List the precautions when fitting 'bag' tanks?3. Where are integral tanks fitted and how are they fabricated?4. What is the purpose of the 'permit to work'?9/17/2014CLAUDIO J. MARTINA1279/17/2014CLAUDIO J. MARTINA128THANK YOU

airframe presentation_ aircraft fuel systems_ fuel system operation_chap 15_sec b

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