M15c11

27問 • 9ヶ月前

ユーザ名非公開

通報

問題一覧

To increase fuel flow to the burners

either increase pressure drop across orifice or increase orifice size

Kinetic knife valve is

less susceptible than half ball valve to dirt blockage.

The purpose of fuel/oil heat exchanger to

increase fuel temperature and reduce oil temperature

The advantage of duplex fuel nozzle

it provides better atomization and uniform flow pattern

What is used to limit the section of fuel flow governor

RPM & EGT parameters

Fuel Flow transmitter can be used

for fuel flow and fuel used.

Low pressure fuel pump installed in gas turbine engine fuel system to

prevent cavitation of HP pump.

LIGHTER Gear type fuel pump used

with airspray nozzle

Air data computer & thrust management computer communicate with EEC using

digital data links (ARINC 429)

Signals send to FCU

engine RPM, inlet pressure, compressor discharge pressure, burner can pressure, inlet temperature

Fuel/air mixture ratio during

deceleration 18:1

FADEC system consists of

sensors, central processing unit & hydro mechanical unit

Engine with EEC thrust regulated by

EPR or N1 depending on manufacturer

FADEC system EEC Channels in control is

the alternate on each engine start if they are equal in health

The Advantage of fuel spray nozzle over earlier types of atomizer

less carbon formation and smaller fuel pump

On the turbo propeller engine the fuel and propeller systems are coordinated to

produce the appropriate fuel rpm combination

In hydro-mechanically operated flow control units (FCUs), the method of control to vary the fuel flow is to use:

servo fuel as a hydraulic fluid

FCOC used in fuel system to ensure that any

suspended water in the fuel will not freeze and causing a blockage in the fuel filter

Combustor drain valve closed by

combustor gas pressure and opened by spring pressure

Turbine engine fuel system designed to meter fuel

by weight

In a FADEC system if both EEC Channels

are faulty or unable it revert to fail safe position

FADEC)abbreviation stand for

Full Authority Digital Engine Control

FADEC system disadvantage it has no

form of manual override

FADEC system advantages

care free engine handling with guaranteed thrust setting and better fuel efficiency

The three fuel control schedule are

acceleration approximately 12:1 constant power 15:1 deceleration 18:1

EEC housing contains

two electronic channels that are physically separated internally .

EEC located on the

lower aft fan case with shock mount

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問題一覧

To increase fuel flow to the burners

either increase pressure drop across orifice or increase orifice size

Kinetic knife valve is

less susceptible than half ball valve to dirt blockage.

The purpose of fuel/oil heat exchanger to

increase fuel temperature and reduce oil temperature

The advantage of duplex fuel nozzle

it provides better atomization and uniform flow pattern

What is used to limit the section of fuel flow governor

RPM & EGT parameters

Fuel Flow transmitter can be used

for fuel flow and fuel used.

Low pressure fuel pump installed in gas turbine engine fuel system to

prevent cavitation of HP pump.

LIGHTER Gear type fuel pump used

with airspray nozzle

Air data computer & thrust management computer communicate with EEC using

digital data links (ARINC 429)

Signals send to FCU

engine RPM, inlet pressure, compressor discharge pressure, burner can pressure, inlet temperature

Fuel/air mixture ratio during

deceleration 18:1

FADEC system consists of

sensors, central processing unit & hydro mechanical unit

Engine with EEC thrust regulated by

EPR or N1 depending on manufacturer

FADEC system EEC Channels in control is

the alternate on each engine start if they are equal in health

The Advantage of fuel spray nozzle over earlier types of atomizer

less carbon formation and smaller fuel pump

On the turbo propeller engine the fuel and propeller systems are coordinated to

produce the appropriate fuel rpm combination

In hydro-mechanically operated flow control units (FCUs), the method of control to vary the fuel flow is to use:

servo fuel as a hydraulic fluid

FCOC used in fuel system to ensure that any

suspended water in the fuel will not freeze and causing a blockage in the fuel filter

Combustor drain valve closed by

combustor gas pressure and opened by spring pressure

Turbine engine fuel system designed to meter fuel

by weight

In a FADEC system if both EEC Channels

are faulty or unable it revert to fail safe position

FADEC)abbreviation stand for

Full Authority Digital Engine Control

FADEC system disadvantage it has no

form of manual override

FADEC system advantages

care free engine handling with guaranteed thrust setting and better fuel efficiency

The three fuel control schedule are

acceleration approximately 12:1 constant power 15:1 deceleration 18:1

EEC housing contains

two electronic channels that are physically separated internally .

EEC located on the

lower aft fan case with shock mount