Mô hình tháo rời bơm cao áp tập trung PE





!" #$%&'()$*+)$),
-.+/01%&23 *$
24&5 1#*6 +.2789*
:2/;&(%2 *%!6<4  ,*
=$&*+.<.2789*<>?
,@<8A7 B1CD <>..
:2

*=*.:2%5 1
 )=. *.:2
*/E(%5 1)=F .&2<
"GHH B1.B$1*B/
!168*IJ"!
KK&/




Hình 1-1 Sơ đồ nhiên liệu bơm cao áp PE
1- Thùng chứa ; 2- Lọc sơ cấp; 3- Bơm tiếp vận ; 4- Lọc thứ cấp
5- Bơm cáo áp ; 6- Đường ống cao áp ; 7- Ông cao áp ; 8 -Ông dầu về
9- van an toàn ; 10- Bơm tay ; 11- Lưới lọc ; 12- Bộ điều tốc
13- ống xa gió

0,*.:2"89%8A(L
=$2- -M N+.8<B8-2<
L$%& <>*L> B9F+./

 !"#$%#

/OP*Q/
:,<>*F<4B)"2,$=*
*./! #*AFFF#*A2R
S:A:2,.F2-/
SE&5A8AFCT$&)%F8=
&<>U/
SV<>*FG$%&W#G N
1T#+./
SX2,FFF&*8<B8-2<L 
FF.TB+N#/
SV<>*F#YL> B). +
./
/OP* )/
S0-.3$.#/
S:Z8 *2789$F8<H 271/
S:Z)-$-/
&'()*+,-
O&3-,*:22789
3<##8M !=-.+3
R
S0,*:222789G.
&@D/
S0,*:222789@)G7/
./012301''
(-456678"#$%#9()*+,-:;5$<+=9'
/[ 9
SE)3*2-(L=)/
SO,*A)L#). +./

S\**M]^_``Sa```bcd<)%
& L> B=MY+./
S3<<>NT# L##*A-
.+./

/e*A/
S;FF-.*92-.+./
SO)F.CT/
SE 271F8<H/
/3-/
S:M 2T#-2789.fT#/gT#
$hT T#/
S:M .-2Ri.C$.,$
> BC,$@(/
 >#,+7+,?@A<2;5<+19'
 !"#$ %&' $()
Hình 2-1 Bơm cao áp PE
1. Bộ điều tốc 2. Bơm tiếp vận 3.Bộ phun sớm

Hình 2-2 Cấu tạo tổng quát về bơm cao áp PE
1-Bơm tiếp vận 2- Cốt bơm 3- Đệm đẩy 4- Bộ phun sớm 5- Quả tạ
6- Lò xo pis tông 7- Thanh răng 8- Khâu răng 9- Vít giữ thanh răng 10- Xy lanh
11- Van cao áp 12- Ông lục giác 13- Ông xả gió 14- Cần bơm tay 15- Bộ điều tốc.
i.-NYjk.
$&@3 &4.
D9&/O,-+.i2NR
S E3] Ud<>%@>"*8ML&5
l8A)$8A $TF$lTUD$ CD$ C
DmE3&a)2R
Sn*n=*"1T# B/O C

T#U4l*T#/J. &PM
* T#/
S31]72Yod*=o2T#
<= B2T#+.$ nD D&/
E* nD CT)&&P GC<+2 T#/

Hình 2-3 Cấu tạo và chi tiết bơm cao áp PE
1-Ông lục giác; 2,3- Bệ và lò xo cao áp; 4- Van cao áp; 5- Lông đền đồng; 6-Xy
lanh; 7- Dầu về; 8- Piston; 9- Vít giữ thanh rang; 10- Thanh rang; 11- Ông xoay;
12- Chén chặn dưới; 13- Lò xo hoàn lực; 14- Đế giữ piston; 15,16,17- Đệm đẩy và
vít chỉnh; 18,19,20- Con lăn của đệm đẩy; 21- Bứu cốt cam; 22-Nút đậy đáy bơm;
23- Phòng chứa dầu; 24- Vít chặn xy lanh; 25- Vít chỉnh vòng rang; 26,27- Dầu
bơi trơn từ động cơ đến và về.
SA8<B*=AM*^--545
#/O2<B@2T#. 23
&&) 54"/E*<B*p#
D$4p# CP -/:<B#

5#$*=8A&"/O.A<>5.B
]o.2BM. Bd B9#.M./;A
n-5 BWF- ).D]o&).
,d/
SE*T# $ $nT *L9
8q*)/
[n.) 3-254"<>
&423+ ))D#,* B
DP...
- U
U<>%@" =,$,$,
&2BM.$,Pm

SE9/
E9<>H4?Y" <>8q49r
.$WD .&2B]2<>@2
<>T#.d&8q.2 .&8q.,/
S;)nT8<B/
0!^Sf;)nT .
;)nTHnT2]nT#p#2TC8<Bd <>
))&k2<>W#)nT8<B.8Z8/O
&)nT8<BRs&"< &.<! t8<B/

O]#P4.^:d<>o48<B)nT
8<B .&kP!A+2T#
2u]#F+2T#/
SO.
O.)#&"W#+#&.v=+
2D <>5-o)T%1. &
D8CoGF/
 O.+/
w#<>5G UH 3/xy
&+289TF*Gk&)%W!
yB Bl,T#/Jo8q.+2DBy
+-&$-W#2T#&P<>*/
O%6R:.+<>$l2F<>5
- %lT#<>/
Hình 2-5 Piston và xilanh bơm cao áp
 ED&/
ED&<>M) .P$DD
B BD&/J.-&<>5 BD
&@ C W#L BD/i4 !o8q.+2@
4+-&*-W#2?W#/s


D&8G#&2Fo2$2W#
#<>NN/
Hình 2-6 Thanh răng điều khiển piston bơm cao áp
2.2.2. &'*+,-."
i)  9%*(L=)/i
) - <<>5o3 <>
&4/
Bơm piston :
Si2<>8q.4.o$<>
*,L#. . #*A+. 4,z.
?,(2 B#*A/V<>*(#<>=
n2124<(")F-#+$
<>*(#)!24- !</R
S%  " Bn%+$* 
n-t" Bnk/s"..$nTMp#
2*$8*2,1n% <-8A * 

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_
%4*<>% n%/;n2*k*
8<4nkp#*W-t-)/
Ss..$W3#p#2T$knTM-$ 
%  4*<>p#-/;N.A
*W-t nk+/;3#W!-.
!</
0! 2.7 Bơm tiếp vận nhiên liệu

u- Cây đẩy ; 2-Van một chiều ; 3-Bơm tay
4- Van một chiều ; 5-Piston ;6- Lọc sơ cấp
Ss.-# B.,$=*9*C$2,-
D* *G=-4nk+/X2,nkD*
p#2T). GC3@ BMp#+nTM%#
2")T% B3#p# 2@4<(")F
-#/: #<>*,)?F/s.
-# B.*9*!2,*4nk

FnTMp#2*)T% B3#p# 4--
-.!</
Si2G.#* B.2*
8L&38A#Ty.< 
/$#0%1&'$+)2
s.-.$&) %*(
L1WN)4-n=*3/J.
A*W 4 L=/
V%2T*- T#@FlT#/
;3#z-/;)!*$&2*k
*<)/V%2*P2l8A-
!M*T#2tD*$M8A+B&5<>
2=k+nT $ 2t4*2t<><)
& N+./;3#&*/V%
- -TkC8<B2 (k4l8A $8AT#
2,8AT#2,8AFT$ 
2t-/X2,8A< 2tFT$
2t-$*2t"n<> N.1!
,8=/;3#&8=+/
s5#$<kA5#$22t<>T#) G
C2y=L Bl8A*T#*2*k*

$8AT#2t$M8AT#"&D
<>*8A"&4 & */
[, B,-L> B=MY.*
*<><)%%$%!,FT#
.M* < &4.D*
*4T#DFN/
{i*/
[*<><D,)N<>8<B
2,#&.+9]#&.G)+2d<
2R
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Hình 2-8 Mô phỏng quá trình bơm
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B;P<>/
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S/
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Hình 2-10 Chỉnh thời điểm phun sớm nhiên liệu
[*(F<>-.,G+9<B
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* l,+T#-&5A*
S E&A/
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A+2=!(%Gp#*4 ,+9W
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oF"2,.<<>.TD
&7"%/
Hình 2-11 Hành trình piston
S 0!A/
[<y!#$!A#Y9. !8-$
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
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!A+<>P@P.d/
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W#)  ,p#2)E:O$4V1o8q.+2
A8<B+T#4*/
s4V#<>41.)4.WU
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P!A$F55@4+.U,
0!^Su^;P!A
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/! #2tZ&/
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*2t"+/
S sF/

[*<>k2F<>-L
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• }.fT#2M#TF#fA2l180 .
W#sFW#+9&(&5A
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•:9W#. n9r.W#
n$F+|`4.|T#]g`4.gT#
d/
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2t<>TG!A<>P%/
! #$&+T#n-2t<>N.)
F+,F2<>P=
M*24&+22u/
• sF&<>P]#
PdP!A+22u/
O%6R0!AF<> P,CT/[)
F"<>PCT$2M#2t"TF#4
FG/[2t.-."YG/
• s4./
[<y!#4*$41o.41o8q.

+2 #+T#24E:O/
s4.F!A]#FdF 
D!AD/
:4.#Y!A#F
#Y$*A<>& P%1G*#Y/
• ;oC3*/
V<>*4l!89+2#
Y<! t2.W#+/[)$<>
D.D F.F/
s)WF#<>FC<2R}.,$ *
5A2l,+T#G4"/E#*$
W#4.$M) ,5A(<Bl,
<>- )WF!89D*.<>:<
! t8<B/

:<>F4.,]=..,d$"2,
.FA#F B3-/}#$"F,
F"C8L2M#$*.<>9*&#
<>/! #$.o)>.P&D<> 
! #D"2,.4).F/
Hình 2-13 Hành trình con đội
&2@'(#%#C5D@E"2;5=+19'
/ !"#$
€NR.39.5 A
1/J.3+.B&#.(./
O#&.W#+3+.#W39.WWF-/
SO?<72BM.*.TD/E*.:2
.$.8AF2B&*+n.M
#"2,B,/:$*A).:2
G.8A2BM./E,F)<>C@.

L o o+39./O nC@
2FF.C1 3+./[ #*
.A#8AB"/

Hình 2-14 Bộ phun dầu sớm tự động trên bơm cao áp PE.
1- Mân thụ động; 2- Trục lắp quả tạ; 3- Vỏ ngoài; 4- Vỏ trong; 5- Mân chủ động;
6- Quả tạ; 7- Vít xả gió; 8- Vít châm dầu; 9- Vít đậy; 10- Lồng đền chêm; 11- Lò
xo; 12- Tán; 13- Khớp nối; 14- Quả tạ.
S E*.:2.$8A2B&*
+.M#"2,B,/:*A)
.:2- #Y2 nW#BG.
8A2BM./; B G<>*z GC
@ -Tk4C" Bl8A# 4T/
SB2@ -TkC*!&4#Y$&8=
G/BC"@ -TkF*q8<B"AG.
8A2BM. !F3@ -TkyM 8A2BM./
S BC"@ -TkC8<B!&4G$&
8=#Y/E"<@ -TkC8<B
*FG.8A2BM./

S;2<=89.M.&
2B@#3/
Hình 2-15 Bộ phun sớm tự động gắn trên đầu cốt bơm PE.
/ 3"45-'.%10+"67'
Ss. $) D$8<B89+M#3
WF- D839.W# B3+.#&
.+8D2B*/
s.F$M#3#)WF-T) $nTW#39.
L B9 B3+. CW#<>-/:
F*/

i.#NR.39.<>5 A$
 1/

u/s" ^/2BM.u`.
Hình 2-16 Nguyên tắc làm việc của bộ phun sớm PE.
SJ.3+.B&#.(./
O#&.W#+3+.#W39.WWF-/
E*39.k9v B3$WF-W#*9
#/;ANn-+WF-z+3+.$WF-<> 
nTM 9$An-z 43+./.
)*@*nT&DMnTG=/J.8C B3
+. 9WF- B-A8#&+%/
E,F, (&<>C@.? o o
+39./ nC@2FF.C
1 3+./ #*.A#8AB"/
s. $) D$8<B89+M#3WF-
D839.W#$ B3+.#&.+
$8D2B*/s.F!M#3
#)*WF-T) $nTW#39.L B9 B3
+. C<>-/:F.2B*
F2@-G#H$
8 9:
s""#k F*."#Y/[)
D+o<B)<1#*.l!DF$

2 nW#+.2tFT$nFF!2 nW#
D*/;8q)<B*#Y.)+""#k$=
..F 41).">/
;&12 nW#9r."#Y).F
!N B2MDFAFD<>*, 

T$nFF!F<>*, T/
s""2M#YF!"&8L#P
<>*, T/O" ,#<>MM..)
Go*./
i,z.-? 92R
;P.A(/
S  iFF.."F,2 B.A
(y<>P/
SM-"F/
SsFF$..D* & <>WB-k/
€FW#)#@8#& G<B <B%8A8
.<>C*/
S;&./}.).$?&
&.$.1A( .M-/[.
n=D&<R
{E#Y<>*,../
{EDoF<>*A)W!4./
S;=<> #*A+./
SFB-<>=F&3#<U#
S;..8LF#"F]1 1..#
- kz-d•%F#"FF
1...%A=#*/
SFM.% 8A&5#2 nW# <>W=,G/
8);-$#
s3-.<D= 1o&2R
EC,#89/
O-/
Si.89M)/

Si.89)/

{E L)../
Oa-/
SV-.)./
SV-)./
SV-)./
{E"89+./
O^-/
SV-8#&R;o*.+#8#&/
SV-•R;o*.•$FFP. B
CT#:2/
{E#*589+37-#F/
Of-/
SV-C BA7-#F #3
‚V-,/
SV-+#M/
SV-+#M/
^/^/ai.C/
0#,.C<R-.).$-).$
-)./E"89,*""#k#.C
)./EA#%!&Q .C)./
{[#*6,-/

Hình 2-17 bộ điều tốc cơ khí gắn trên bơm cao áp PE.
u‚ED^$a$f$ƒ‚ OA&_‚O53<>g‚„F-/
0A) .Cf.C&& #&
 B/
• i..MRO#2=M)WWF D/0WF
D88M#3/
• OA *  -RV.n  p#  #  n$k$9 #
n///*- B."M D&<<>*/

• ED&<* C#)&TG
TL# GC/
• [nnT.o BM#3+WF- 
p#D *.< /;N C
P3<>/E,F.*<>C U/
{[#*6 /

 ./
skD/„nT.$#n$
A*kWD$.8Z8/s.yY
NW#$8<B89+M#3WF-p#3<>z
*#n3@ B2=DnT*p#3<>p##n$
& F8A$.FTM#33@ BnT$
WF-4 GCv=/
 i. #YF/
;. 4).YG/C89FD<T*
8##,$ !FD*..F$*M#
3+WF-F$WF-T)-$nT5M#3*
p#3<> $W#n A&$kD 
D8A$WF--3@ BMnT/Nếu FF<T
T8##,8LC$..#<BD
*$M#3+WF-D$WF-852=DnT
$WA*kD F8A&.F-  GC
A$)YGWF-4 GCv=3@ B2=3nT
/[< #A4. GCDM.*#B8A
FD#F/C89 !68.. <>W.B-$
%#M#3WF-B$WF-)Hp#3<>$W#
n A*p#D %8A$.($"-#/
& IJK.LM3NO3P32301''
&QR(QST9E"4(H(-"-4#2;5<+1''

EW! *<o1<U$
1<U.#8qk(o)*$5*
,*"o",*/
/5-."$<=9"!+-."
E<#)#o# 2t#)8AN)
v/
E5*&TF#4R
S sG…$5*"<>* N
#/
