1
2
3
4
_ _ _
,.
__
- -
- -
- - • - - ·
-
-
-
,
-
-
17 16
15
5 6
...-:---1--7
a-+--+-....__ 8
9
l
GRaSSÊï
-.uaNl'IICi�Alt r�nNt,.._ftlJK
wc� 1111• "' ..,, ,..,.
n
D"DCS1111A.-noM
1 IOO< r;u;
2 erve Il r
3. 011 ove.rliow t1ole
4. shaft seaJ cage
S snahsea 11ous1ng
6 0<.'t,et ,ou,,,nç
7 011 St;pp,� port
8 O-nr.g
9 sh
ah.
s
ea
1
cover
• Ci ca,!)on sl o ring
' r.-a e ro:.or �n.a!·
• l i.eoonoa-y sea
13 :oc� p1n
14 011 lea/lage drain
1s co, sorinç
16 dr,vec�
17 sec.ic .gl>!'
11
FIG. 2.4 ROTARY SHAFT SEAL
by draining oil from this chamber, the slide valve can be
moved to any desired posi1ion between full-load and mini
mum capac1ty.
A pilot valve 1s used to control the oil flow towards and
from the ou1board chamber. Th,s valve cons,sts of a verti
cal
disc (11)
wlth a hor12ontal
pin
(3). wh1ch fits
1n
a hon-
SIJCTION
0
9
LOAO
UNlON:> ____.
zonlal bere in the pîston.
As the pilot vafve is moved forwaro 1n the unloadlng d1rec
tion the 011 suppty port A (radial channel in piston) 1s
opened by a recess In
1he
pin wh1ch allows the oil, sup•
plied via the telescope p1pe
(18)
and tne hollow shde
valve rod (5), to enter the outboard chamber and to push
, Regwu,ng stiaJr
,-
FUL.l MOVEME�r
/
OF
suor
VALVI-
? . 01.U!>O..lld ltlamber ot nydrauhc cyhndor
3 Pilot vat1111 oin
lt
:8
4
P
S10:l
w
111 cna.·nelS
&
C,ilC,: YaJ\le boto
5
$,dev,1.l\lt-rod
6
Hyoraul1c:Gy1111ce1
7 lnboarcf Chll.mbef of hyd@ullC cyilnc;ll.'t
(l Re!l:rnpotl
9 Co-rrl)(euo•
,o;cys
10.
Retain ng shou
de·t:O'I
ll
PIiot
valve CISC
1
:!. Ball
nut
13 8all·sctfl\v
, 4
Cnanne, beiween
M:,oaro
a,amber
and
SIJçVQI')
c:nar,ct"'
• 5 Com;,re!>� r,o;;s,ng
1 G Suctîon chamber
11
$1,oe va1ve
18 \-1
,g
r
prl's.s.ute
a,I S..OD I'
o,pe
FIG
.
2.5 SCHEMATIC DRAWING OF CAPACITY CONTROL SYSTEM
92.01
Compressor Package GSLP
Page2.5
www.GTEX.nl
www.GTEX.nl
