hydrolic system
TRANSCRIPT
7/23/2019 Hydrolic System
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in
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o
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opcratcJ
u
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u eyhLs
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n
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h
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ond
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7/23/2019 Hydrolic System
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7/23/2019 Hydrolic System
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7/23/2019 Hydrolic System
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3
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Por",
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h
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78. €merg(n{y i;r* i} usci fo, essenli4/ ur*r, cnly l.e. {Ao
uiers
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7/23/2019 Hydrolic System
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5
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oir
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7/23/2019 Hydrolic System
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nd
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uen
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t
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t
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l
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it
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ai l
7/23/2019 Hydrolic System
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3
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i-
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usd
fa
ntouc
A.
hf
rarl* ail
*i
fi
rt7uircd
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r
aL,
anJ
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ssur( th,o*jh
oul
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hyd
rauli,
rys
cm.
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many
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af
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lyp"t
(an
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in
on
air
crafL
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on
ah
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ar:
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.
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ond
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i
s -
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ly
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cd
i
l, n
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t
at
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,
ond
il
is
operalcd
or,
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th.-
air
cro
t
i
s
0n
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ump
(Epp):
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f
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i s
lh.
eng
nc.
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n
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.
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on
llrc
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t
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ical
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bf
on
elccl,;c
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otir
cra
I
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t
i i)
,
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7T.
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ed
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5crne
i ,
r.
t
7/23/2019 Hydrolic System
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( ig) .
A i ,
dr iuen
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is drioen
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a
bJ air
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and
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ou
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t
ary
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an
a ; l
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n
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he
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ut not
i l
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:
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iL
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lh.
ail
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h
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7/23/2019 Hydrolic System
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(
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t
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t
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is
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il
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e sen&'a users rn cosc aF
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i
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t
is
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is
oi l
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j
i
uscs
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ail
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7/23/2019 Hydrolic System
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r
f lu;d
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vn
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t
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i
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ai l
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Jl
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also
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a5
a pressurL
elicf
ualut
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j
-
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i5
ct
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olue
(
I
t
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il
is
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a
reLu,n
l ine '
prc
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A
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bt.
rehevd
c.
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prcssurc
on
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+
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f
la
,
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uo 'e
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is
a
ualve
hoL prauidcs L.r'ntail flo* raL, rega'Jl,'s
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il,
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yt
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f
lo* conbol
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r
fi[t'/
in
h
th'
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t
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n
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d
-
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H
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la
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ctaf
i5
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ump
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en
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l
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8
-
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ut
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nluku
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LooJ
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.
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ne
driucn
Pu*P
is
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t
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as
lh,
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s
aperaliaS.
tf
all
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n
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ly opuaLing
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go
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it
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il
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i l
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o
l
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n
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os
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,
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it
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s
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a
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ir abilily o distannc.L
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l
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1-
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o uc
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ler
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e
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n
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d
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ian
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l
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i t
i
ob
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o
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ted
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nt
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i
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o,
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f l,;d al
uolurs
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at
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.
[ l igh
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I t
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l lc,: tA. hyd,aulit lu;dat hgh prcsrures.
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i
tlers
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aul
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.
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ai
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s pp,
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t
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ualed
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t{-
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ly
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ui
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ail
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rys
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t
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r
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re
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li.
ry
s
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oni
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s
cn
or
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ilat a(e
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d f
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n
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ern'
7[is
/
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arnthg
ttg
n als
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lhe
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il
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h"{
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n
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raulic
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air
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onL
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,
In
mod4n
la'ge'
5yr
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air
cn
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c
orz
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o
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t op"ally
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erJ
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r
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ond
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il
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6u;dc,
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ht t
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ts
wl
tgos
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t)
ft*
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ryslctn
f
f
il,
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ra lit
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liu,,
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^tlhodt
fo,
supplginj
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orc
:
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n
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a
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o^ lh.-
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enI
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olt
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fail-
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lrAT.
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AT
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nat
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n
anually
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,
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l
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ailcd,
at rnonual
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ir
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s
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ur ing
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1
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etlc'
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uorioblc ifch
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r driueny ok flo*. It hat l*o
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ro^
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nT
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ic
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peralion.
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AT
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ir
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,
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i:
s
or,ed
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n
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.
It
,,,ol
s 4tcJ
{h"I
lhut
it
eonlinw:
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f
lon
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lhr.
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lo
tl*
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,
[h'
lrfrT
hyd,autit
Pu^p
en ;a,nediolly
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li.
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,"ilhi"
I
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/
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.
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actuatar ir
uscd
lo
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AT:,
I
i>
on
elerlrr
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ctualos
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ond
it tral' powcr t,ectly f,o^ ll* air cralt ba{,e,y
,
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in
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it
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is
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lo
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in
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mc.Aonirrn
5
reTuired.
(,etef
ex
och
cobl.
locftr
h.
prope
lcr
(
U
entn;nj
cvt
ut
propellcr
ubJ
cnd
p
ro
hib;L
p,e,rmt)
h,
frAT
f,o^
ratoL,6n
ds
lot
05
iL'
>
Sto*red,
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elr
lcx
]o.l cab].
aho ensurct
[hoL
h,
L
blodcr
of
/At
air
tu,b;n,
Qrt
verli
cally lacaLd.
lf
lA.
[,.,,binc
]od.s ate
na[
uerLicolly
rienLcd'
'
ft
AT
dryhXr,.,e.L
s
no
porsible
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h.-
apni'1
n
ll,'
fuxt"6e
$o
alla*s
th.-
ftnT
Io
bc
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s
wide
eno'gh
orU
when
h,
fu, ,'n.
bloJ.t
orc
in
fh-
ue*iql
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lfi"
lele
'lex
loc|
rob]c
csperahs
reLracLmicroswitch
h
connect
f-r
5)
7;hrlh
lo.[
coblc
-
5
ince
hue
t
conLin"*
lu;d
fl*
f,r^
lhle
rYtetto
gdra'tli. grlct
-
ltro
in lh.
a(
distanncrb
elccfc,ic
upply
o
(Ac
"(xlcrrrirx
/
fctrsclion
ocluolo
"
i r
a
small
swi l rA
(hat
control
o^
rraf f
"e46{enr
ian
f
rc
lrrac
ion
a
c[,*o[o,
)
(
4Te
nti<ca
wilrh
elechic pourer t"
/A.
7/23/2019 Hydrolic System
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t)
Up
/
do*o
/n;t swi
lchcs
7tr, up /,*;t
suti
ch (enau#
powe(
fro^
th1_
aclua[ar
,*rhcn
R
AT
ir
f
llf
|tau,.d
(
rct,acLcd
.
4,
.
78,
dourn
f;mit
s,.ri{cA
,cmortet
pa.lte(
io^
llrc
ac|ualor
wlrcn
$.
RAT
B
futty
dcplayed
( ,el,c dri]
.
A
n
indicalion
ir
rnoda
rn
(h, cochpil fo, {k ca$cof ftfrT f lA d.plo1n.a
(
5x[t,',
sia',
relracLion
aetua;o,
= Ac1uah,
)
I
-
5ys{c-
rnlerconnect
nd isol
lion
7F,
acbon
oF
in[er
canncr
and
i:,,r,lotion
yltc-l dcpe'td
th.
crcu).
.
Tf,,
interconncct
ysLc^
enoAltl
Ltt
h
move
thl.
hgdraulic
fl-tid
f,*,
0^r
hydrouli,
gttrrn
Io
onother {arding
h
$,
problcrn
accurcd.
76,
hydrauli,
ail
can
,noue
;^
a
$aad
hydranlic
rylfcrrr
h
onolhu
sJJlc,n
Aot
hat
i|s
Pu^P
fail,J,
l|;t
ir
,nad,
in
a,du
h
apenh
both
sy.rlcn
,
tilh
o b
onc
,
On
6is
Jr
no[
found
in
modern
ab
uaf
ts.
7/23/2019 Hydrolic System
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7tr,
isolotion
yslc*
ir
l;hc
on
isolalian
aluc,
(
prcvtntt
l/,,
Aydrauln
l id
h
tnler
nar'
esscntial
scrs
that lnay
hare
lro
age
so
frccpny
Ay
drau
;r
f
id
fo,
lh.-
etre{llial
erscrs
3
-
Hydrauli,
Po,p
,nala,
.
Th,
hydrauli,
malor
l suyphed
ro*
an
alle,nolr-
tcrsutt
Saurce
ammin6
f,o^
a
i,,gdrauli..
yslem.
4fru
hycLoul;,
nolo,
der,uct
a
hyc/rauli,
qmp.
7fr;s
Aydrau/;,
1;r^f
is
dsecl
t
*ppt|
{A,
Slah
anC
lop,pt
*,{rn
tAr,,
l
holr
in
ll..
rnaie
syl
Lcr,
and
/r{.s. campancnts
}
la
r
and flaps)
orc
ilolaled
fro^
{h.
essen
ia
tr
5cr5
76,
hydraul;,
pu^p
^otor
sy
cn
i
r
aperaled
a
supply
rlah and fty' *A.n (4 oft rcguireda b &ploycd. A:s
n
(osc
al
lroL gr,and
lah
and
flopt
ort
isolalcJ
ron.
e;sential
serl
lft hgdraul;,
prt^p
I
^olor
syJtern
5
laralr/ as
neor
S
possillc h tAl-wing in arde, o reduct,f | il /ars.sn casc
of
lro
kogr.
{4.
l :
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7/23/2019 Hydrolic System
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@
Xr Ai' crafl
,
lherc
a(
c
t.*a
,
t J5
Va l t ,
.
28
Vo lL '
Q.lccLricily
d
f
,rn[
elu
lric
Ac
cutenL
fro*
Dc
(ur rent
f ,o^
Sotttcct
an
ait Craft
elccLric
gcneralo'J
ba
lay]
x*
6p.,
al
punpt
n
Atr
c,atls
11
0'
P
;
l-lo d
clriaen
u*P
E' D'
P
Ery..
dtiven
P't^P
t- D.
P
:
f l r rLn.
dr i tcn
pu*p
A-D'P
:
Ai ,
c l f i , tcn
' r *P
(
{
fot
ca,So
cJm'
onlS}
{
Supply
nain
pump,l
(
SrlrPlJ
main
Pu*P)
SuPpl;
rnatio
u^f
anl
il
is
nol
farnd
n
rnada^
ai'
c'oftt)
7/23/2019 Hydrolic System
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- L 4
eoMMFr.{TS
ON. AerrvlrY
I
Y o u r
o r d e r
sh o u l d
b e
( a ) ,
( c ) ,
( b )
The pressure re l ie f va lve operates
pressure
-
the
pump
has
to
Produce
consumpt
ion
.
When the
valves
are open
as
shown
has
l i t t . le
or
no
pressure
to
work
t i t t le
energy
consumption.
at the highest sYstem
this,
hence
high
energy
in
the drawing,
the
pump
against,
-
hence
very
When a
service
is selected,
the
energy consumed
must
be
somewhere
between
the two.
IFIIE
etgjiED
SYSTEM
The
open centre
system
may be
f i t ted
to some
small-
aircraf.t ,
but
the closed
system
is very common
on small
and
la rge a i rcra f t a l i ke .
F : -g .
2
be low
shows
a c losed
system
using high
and
low
pressure
fi l ters and
a constant
del ivery
pump.
Because the
pump
cannot,
'se l f - id le ' ,
the
system is a lso
f i t ted
wi th
an
ACOV
and an accumulaLor .
When a service
is se lect .ed,
one
side of the
j
ack is
connected to the
pressure
l ine,
and the other
side
to
return.
The
jack
wil l move unti l i t ,
comes to
the end
of
ius t ravel
,
or
i t is se lected Lo
stop by
placing
the
selector
valve in
neutra l
-
f lap
ci rcu i ts
for example.
ACCUMUI,ATOR
HIGH
PRESSURE
FIIJTER
o
SUCTION
LINE
RESERVOIR
,,
PRESSURE
TRANSDUCER
LOW
PRESSURE
II-ry4I{{f}IG
SWITCH
:il:.'1
]DLING
LINE
ilolf RErUR
PRESSURE
rI E
LOW
PRESSURE
FILTER
Fiq. 2
CLOSED SYSTEM
3-3-{
7/23/2019 Hydrolic System
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RESERVOIR
SUCTION
I.INE
I
RETURN
I,INE
ACTIVITY
7
l-
Mi-nute
What
woul-d
happen
if
se l e c te d
Po s i t i o n t
JACK
CENTRE
SYSTEM
the
valve
was
lef t
in
the
SELECTOR
VAIJVE
F ig .
1 OPEN
....--+
PRESSURE
REI,IEF
-.
3
ir-