(CRDI
& Non RDI System)
Q1. CRDI ls D;k vfHkizk; gSa \
Ans. CRDI ls
vfHkizk; Common Rail Direct Injection gS ;g fuel
supply system dh Mhty batu esa modern
technique gSA
Q2. Fuel supply system ds components ds ckjs esa crkvksA
Ans.
(i) Storage of fuel (Fuel
tank)
(ii) Fuel dh filtering (Fuel fuel Filter)
(iii) Fuel dh injection pump dks delivery
(Primary pump)
(iv) Fuel dh engine cylinder esa inject
djukA (Rail vlSEcyh,
injector unit, high pressure pump)
(v) Engine speed dks control djuk (ECM operated)
Q3. Solid injection system ds type crkvksA
Ans. blds
nks Type gS %&
(i) Common
Rail Fuel Injection (CRDI):- bl flLVe esa injector
ds lkFk single pump dk
iz;ksx gksrk gSA bl injector dks unit injector dgrs gSA bl ;wfuV injector dks rocker
arm vkSj spring ds }kjk
engine valve ls operate fd;k tkrk gSA Fuel dks feed
pump }kjk fuel tank ls fy;k
tkrk gSA
(ii) individual
Pump Fuel Injection System :- bl flLVe esa fuel dks fuel tank ls fuel feel pump }kjk fy;k tkrk gSA ftles injection pump camshaft }kjk operate fd;k tkrk gSA fuel
injection pump cyclinder ij fit injector dh lgk;rk ls fd;k tkrk gSA
(iii) Fuel
Injector Nozzle:- fuel dks properly
automized form esa ,oa proper quantity esa inject djus ds fy, fuel
injector nozzle dk iz;ksx fd;k tkrk gS nozzle
esa NksVs&2 holes gksrs gS tks fuel dh spray
esa help djrs
gSaA ,d vPNs nozzle dks fuel dks uniformly automized djuk
pkfg, ftlls og proper injection angle vkSj direction
cuk ldsA
(iv) Turbo
Charger (VcksZ pktZj):- ,d
VcksZ pktZj ;k turbo ,d Force induction
(QkslZ baMD'ku) fMokbl
gS ftldk iz;ksx fn, x, size ds batu esa Hkh vf/kdre power
produce djuk gSA ,d turbo-charged engine
naturally aspirated engine ls vf/kd powerful vkSj efficient gks
ldrk gS D;ksafd turbine vf/kd gok vkSj vf/kd fuel
dks force djrk
gSA Turbo charger dk iz;ksx vkerkSj ij trucks,
car ;k bus esa
gksrk gSA
(v) Servicing
of Turbocharger:- Normally turbocharger 150000 rpm (izfr feuV pDdj) ij work
djrs gSA Turbo charger dh service manufacturer }kjk
ugha lq>k;h tkrh gS ijarq ;fn oil dh seal
fail gks tk, rks iwjh turbocharger assembly dks replace fd;k tkrk gSA Turbocharger
dh disassembly ds le; dust
dh entry u vkus
dh precaution j[kh tkrh gSA
Fill in the blanks:-
(i) Common rail fuel injection esa ,d ………………….
Injection pump injector ds lkFk ftls unit
…………. dgk
tkrk gS izR;sd ---------------------- ij yxk;k tkrk gSA
(ii) Individual fuel injection pump system
esa fuel feed …………….. ls fudkyk tkrk gS ftls -----------------ds injection pump ………………. Ls
Operate fd;k tkrk gSA
(iii) Fuel dks ……………………
esa properly, antimized form vkSj proper quanity esa inject
djus ds fy, fuel injector …………….dk iz;ksx fd;k tkrk gSA
(iv) Nozzle esaa NksVs&2 ……………….gksrs
gS tks ¶;wy dh ---------------------- esa lgk;rk djrs gSA
(v) ,d turbo
charger ;k turbo ,d forced
……………..device gS tldk iz;ksx fn, size ds ------------------ ls vf/kd power Hkstus ds fy, iz;ksx djrs gSA
(vi) Turbo charger petrol vkSj diesel ……………combustion engines ds lkFk properly iz;ksx
gksrs gSA
Ans. (i) Single, injector,
cylinder
(ii) Pump
(iii) Cylinder, nozzle
(iv) holes, spray
(v) induction, engine
(vi) internal
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