Gas Turbine Engine Flashcards
History of Jet Propulsion, Jet Engines Basic Operation, Types of Jet Propulsion, Types of Gas Turbine Engine (58 cards)
a writer and mathematician named
___________ devised a toy that used the
______________. The toy, called
the ____________, consisted of a
covered kettle of water that was
heated to produce steam.
WHAT YEAR?
Hero, reaction principle , aeolipile, 250 BC
The first patent covering a gas
turbine was granted to ____________
of England. It included all the
essential elements of the modern
gas turbine except that it had a
reciprocating-type compressor.
WHAT YEAR?
John Barber. 1791
______________ applied some of
his concepts in the development of
the ________________. This unique
supercharger consisted of a small
turbine wheel that was driven by
exhaust gases. The turbine was then
used to drive a supercharger
WHAT YEAR?
Dr. Sanford Moss, turbo-supercharger, 1900
________________ of England
developed what became the
first successful turbojet
engine and was granted his
______________-
WHAT YEAR?
Frank Whittle, first patent for the jet engine, 1930
_______________, a German
engineer, designed and built a
jet engine that produced ____________ of thrust.
WHAT YEAR?
Hans Von Ohain, 1,100
pounds, 1936
Hans’ engine was installed in the _______________ aircraft in ____________. it became recognized as the _______________ by a jet propelled aircraft.
WHAT YEAR?
Heinkel He-178, first practical flight, 1939
Frank Whittle’s engine
completed its first flight in a
_______________ aircraft.
The engine produced about _____________ of thrust and propelled the aircraft at speeds over _________________.
WHAT YEAR?
Gloster model E28/39, one thousand lb, 400 miles per hour, 1941
Another step in the progression of
commercial and military aviation was
the ability to produce an engine that
would propel an aircraft faster than
the speed of sound. Such aircraft are
the _____________ which flies in
excess of _________ and the
____________ capable of flying ____________
the speed of sound.
SR-71 Blackbird, Mach five, Concorde, 2.2 times
Newton’s First Law
A body in motion remains in motion, a body at rest remains at rest, unless acted upon by a force.
Newton’s 2nd Law
F=m*a
Newton’s Third Lan
For every action, there is an equal and opposite reaction
The main function of any airplane propulsion system is to provide a force to
overcome the aircraft drag,this force is called ____________-
thrust
When a jet engine accelerates air (mass), it makes _____________.
thrust (force)
Jet engine thrust can be increased in two ways:
Increase the speed of exhaust gases.
Increase the quantity of exhaust gases.
Basic Operation of a Jet Engine
AIR ENTERS THROUGH THE INLET DUCT (COWL).
AIR COMPRESSED BY PASSAGE THROUGH THE COMPRESSOR.
MIXED WITH FUEL IN THE COMBUSTION
CHAMBER.
FUEL IS IGNITED, PRESSURE AND TEMPERATURE RAISED
SOME OF THE PRESSURE USED TO TURN A TURBINE;
TURBINE SHAFT DRIVES THE COMPRESSOR.
HOT, HIGH PRESSURE AIR FORCED THROUGH A NOZZLE.
THE REACTION FORCE IS THE ENGINE THRUST.
Propulsion Devices
Air-Breathing
Non Air-Breathing
Air-Breathing :
Reciprocating Engines
GasTurbine Engine
Ramjet Engine
Non Air-Breathing:
Rockets
Types of Jet Engines
ramjet
pulse jet
scram jet
rocket
gas turbine engine
athodyd(or aero-thermodynamicduct), an air-breathing engine with no moving parts
Ramjet
Ramjet
With no rotating compressor to draw air into the engine, a ramjet must be
_____________- before it can produce thrust.
moving forward at high velocity
similar to ramjets except that the air intake duct is equipped with a series of
shutter valves that are spring-loaded to the open position.
Pulse Jet
A pulsejet is typically considered more useful than a ramjet because pulse jets can ________________.
produce thrust prior to achieving a high forward speed.
SCRAM Jet vs. Ramjet
a ramjet decelerates the air to subsonic
velocities before combustion,the airflow in a scramjet is supersonic throughout
the entire engine.
