DISPOSITIF AUTOMATIQUE POUR TRAIN D'ATTERRISSAGE

AUTOMATED UNIT FOR LANDING GEAR

Abrégé anglais

ABSTRACT
Component addition utilized to prolong the service life of the
landing tires.

Revendications

CLAIM:
The motorized drive unit rotates the airplane's landing tires
with the exact acceleration of that of the plane's own landing
speed. The above shall result in the increase of the tire's
life span. This will greatly reduce the costs associated with
tire replacement. As an added feature this unit will reduce
potential tire blow-outs, as well as, minimize the "skidding"
factor.
The end result is a reduction in maintenance costs and improved
vehicle safety.

Description

:
:
209~
.
. .
AUTOMATED UNIT FOR AIRCRAFT LANDING GEAR:
, .
Component addition utilized to prolong the service life of the
landing tires.
O~JECTIVE:
The objective of this design is to prevent premature wear and
tear of the aircraft's tire life upon touchdown (landing).
PRESENT PROCESS: -
Under the present format, the tires are subject to excessive
. ~
friction, this is a result of extreme weight impacting at high
velocity on a non-motional surface (i.e. Runway).
RECOMMENDED PROCESS:
The present proposal (patent pending) allows for the said tires
to rotate at an acceleration rate equal to that of the
aircraft's own landing speed.
.:
-~ This will be accomplished by incorporating an adjoining
- electrical component (i.e. Motor) which is permanently fixed to
the axle rod wheel connected to the respective tires. The
` rotation system is initiated upon activation of the landing
gear.
''`'
OVERVIEW:
The above technological process will substantially prolong
existing tire life as compared to historical usage.
,.
~.:
. ~ .
~'
. . . .
: . .
:
. ' .
:~
- :
:

~ SPECIFICATIONS:
i`:?
~'
~ The process utilizes an electrical motor as defined below:
...~
- A direct current, variable voltage, variable speed, CEMA 4X,
6-48 volts power supply.
.
The above is powered by the aircraft's own power supply;
` alternatively an independent battery operated source may be
employed.
: .
GEAR BOX OR GEARLES_ UNIT:
The unit can be driven by a high speed, high torque, low
friction helical gear box complete with sheave and pulley
attached to two shafts with a high density (Duro 80) rubber
wheel on sealed bearings, driving the interior or exterior
areas of the landing tires, thus rotating the tires, the same
can be accomplished by eliminating the gear box.
`
SPEED:
, ...
` The speed of the motor is critical and must be identical to the
on going speed of the plane upon touchdown.
:i,~
-~ Because of the D.C.V.V. drive unit, the motor speed (R.P.M.)
stop and start can be controlled. Therefore a motion speed
" detector will be adapted to relay this information back to the
controller thus controlling the speed of the motor.
-:
.",~
..
`;
....
~! . ` ` , :
'` 'r',, ' 1~ , ,
:: ';j, ` ' :
`, :~, : . . `: : ~'
~.`: ` ` " : ' ~, .
"; ' ' ` : :

:'
2~93963
..~.,
...
~ 3
,::
;
FEATURES:
A distance detector ~light-Rays) will be used to determine the
distance and height of the plane and will relay information
back to the controller allowing the unit stop and start. The
motor with accurate timing once the plane has hit the ground.
An overspeed switch can be installed to disengage the unit in
case the speed of the plane and speed of the tire rotation is
not equal.
It can also disengage the unit just before touchdown, allowing
it to rotate freely.
LOCATION OF UNIT:
~ .,
.-;
The location of the drive unit will be installed directly below
the landing gear axle between the respective tires.
. .
;
~,
"
, ~
, . .
'`
.
i.:
`
.,
::: :: - ., ~ :, . : :, : :: ,
' '
~'' ~ .:
.~ . . .

Dessin représentatif