
mersidus-benz oom 138

dimeler-benz nirmmikkunna deesal enchinaanu mersidus-benz oom 138. 1935num 1940num idayil motham 5,719 unitukal nirmikkappettu. oru passenture kaarinaayi prathyekamaayi vikasippicheduthathum nirmmichathumaaya aadyathe deesal enchinaanithu. oom 138-ll pravartthikkunna aadyathe vahanam mersidis-benz dablyu 138 aayirunnu. laitt mersidis-benz trekkukal ell 1100, ell 1500 ennivayum buzz oo 1500 umm staanderd oottoo enchininu pakaramaayi oom 138 vaagdaanam cheythu.
swaadheenam.
1928ll dimeler-benz aarr silindar-inline-truck-deesal-enchin oom 5-nte vanthothilulla uthppaadanam aarambhichu. saankethika mechappeduthalukal rettucheytha bhramana vegatha vardhippikkaan anuvadichu, angane kuranja sthaanachalanathode kooduthal oorjjam anuvadikkukayum deesal enchin oru kaar enchinaakki upayogikkaan saadhyamaakkukayum cheythu. deesal enchinukalkku oottoo enchinukalekkaal kuranja pravarthanachelavundu; deesal enchine oru kaar enchinaakki mattunnathinulla prachodanamaayirunnu ithu. oom 138 nalkunna dablyu 138 nuu indhana upabhogamundu, athesamayam athinte oottoo powered counderpart dablyu 21 nuu indhana upabhogamundu. petrolumaayi thaarathamyappeduthumbol deesal indhana vila kuranjathinaal, prathyekichu taxi drivermar 138 enna vilaykk anukoolamaayirunnu.
oaem 138 oru kaar enchinaanenkilum, nirmmicha 5,719 enchinukalil 3,752 ennavum truck enchinukalaayi upayogichirunnu. oom 138 dimeler-benz kaar deesal enchin ulppaadanathinte thudakkamaayi adayaalappeduthi; ennirunnaalum, 1970-kalil volkswagen eji goalf aii-ll athinte ea 827 avatharippikkunnathuvare, germmaniyil oru passenture kaar enchin enna nilayil deesal enchin asaadhaaranamaayirunnu.
vikasanam.
1933 leeii sarathkaalathaanu passenture kaar deesal enchin vikasippikkaan thudangiyathu. silberfiel rays kaarinte designaraaya albert hease aayirunnu vikasanathinte thalavan. aadya pareekshanangalil, 3.8 littar sthaanachalanamulla oru strait-six silindar truck deesal enchin upayogichu. athu nirmmichu. ennirunnaalum eee enchin prototype kaar chesisinu valare sakthamaaya vibrationukalkku kaaranamaayi, athinaal dimeler-benz shakthiyeriyathum cheruthumaaya deesal enchin vikasippikkaan shramichu. rund prototype enchinukal aadyam muthal vikasippicheduthu oaem 134, rettucheytha shakthiyulla vaattar-cooled inline-three-silindar enchin, oaem 141, inline-phoor-silindar enchin uthppaadippikkunnu. eee enchinukal aavasyangal niravettunnilla. oru kaarinu anuyojyamaaya powerplant vikasippikkunnathin truck enchin veendum upayogikkaan dimeler-benz theerumaanichu. 1934ll truck enchinte silindar alavu naalayi kuraykkukayum borum strock sookshikkukayum cheythu. sakthamaaya exhost emission, ruff enchin oottam thudangiya prasnangal pariharichu, 1935 ll vanthothilulla uthppaadanam aarambikkaan kazhinju.
saankethika vivaranam.
prebesten chamber inchakshanodukoodiya swaabhaavikamaayi aspirated, vaattar cooled inline-phoor silindar deesal enchinaanu oom 138.
 nananja sump lubrication oechvi walvetrain. ithinte sthaanachalananirakku 2.54 littaraan. borum strock, ithu oaem 138 nuu kaar enchinaanu 3000 arpm truck enchinaanu 2800 arpm enna uyarnna bhramana vegatha nalkunnu. rettucheytha shakti.
crank cases.
oom 138-nte crankesil rund bhaagangalund, crankshaft bairinginte thaazhathe bhaagamulla oru "thaazhathe bhagam", silindar block kaamshaaftum ulla oru "mukalile bhagam". thaazhatheyum mukalileyum crankase bhagangal thirashcheena crankshaft sentarile pinn scrookalumaayi bandhippichirikkunnu. thaazhathe crankase bhagam vaariyellukal upayogichu shakthippeduthukayum ilam loha aloy kondu nirmmikkukayum cheiyunnu. gearboxinte flanch thaazhathe crankase bhaagathekku idunnu. mukalile crankase bhagam chaaraniratthilulla kaast irumbu kondaanu nirmmichirikkunnathu, ithu crankshaftil ninnu silindar head vare athunnu. athinte munvashath, mukalile crankase bhaagath kaamshaaft pidikkunna oru balj undu, athinaal rund gearukal maathram upayogichu kaamshaaft crankshaft upayogichu oodikkaan kazhiyum. kaamshaaft anchu bairingukalil pinthunaykkunnu. kaamshaaft attakuttappanikalkkayi, crankesinte munvashathe baljinu neekkam cheyyaavunna cover undu. starttar motor, aaltarnettar, injection pump ennivaykkulla moundingukalum crankesil idunnu. crank, kaamshaaft ennivayude lubricationaayi crankesil oru oayil pipe thulliyittundu.
pisttanukalum power transmission.
pisttanukal ilam loha aloy kondaanu nirmmichirikkunnathu, avaykku moonnu compression ringukalum oru oayil ring undu. choodu chikilsikkaavunna urukk kondu nirmmicha aii-aakruthiyilulla bandhippikkunna vadi upayogichu avaa kraankshaaftumaayi bandhippichirikkunnu. bandhippikkunna vadikalude bairingukal oru ledu brons aloy kondaanu nirmmichirikkunnathu, avaa oru pinn upayogichu gadippichirikkunnu. oro bandhippikkunna vadikkum athinte bairingukalude lubricationaayi oru cheria enna pipe undu. sareerabhaaram kuraykkunnathinu, bandhippikkunna vadi pinnukal pollayaya drillilaanu. kadinamaaya pinnukalulla kraankshaafttine anchu bairingukalil pinthunaykkunnu, koodaathe crankshaft bairing ware kuraykkunnathinu kaundar veyttukal sajjeekarichirikkunnu. crankshaft bairingukalude kavarukal rund pinn scrookal veetham gadippichirikkunnu. flywheel crankshafttilekku flang cheythirikkunnu. crank shaafttinte ethirvashathu, ithu oru gharshanavum vibration damper kaivasham vaykkunnu.
silindar thala.
oom 138-nuu naalu silindarukalkkum oru silindar head undu. silindar headley pradhana ghadakam prebestation chembarukalaanu. avaa jwalana araykku mukalil 45° konilaanu sthithicheyyunnathu, silindar headle oru baljil sthaapikkunnu. mattu aadyakaala oaem deesal enchinukaleppole, oaem 138-lum pradhana jwalana araykkum prebussion araykkum idayil indhana spray cheiyunnathinaayi oru arippayund. kuthivayppu nossels prebestation arakalilekku indhanam kuthivaykkunnu, avaa silindar headle gadippichirikkunnu, eluppathil paripalikkaan kazhiyum. glow plugukal kuthivayppu nosilukalkku thaazhe gadippichirikkunnu, mathramalla eluppathil axus cheyyaavunnathum aanu. silindar headinte prebesten chamber vashath oechvi valve traininu aavashyamaaya pushrodukalum undu. intekkum outlettum ethirvashathaanu; intake manifold silindar headinte oru bhagamaanu, athinte mukalil sthithicheyyunnu.
walvetrain, indhana samvidaanam.
crankesile camshaftinu kaamshaaft gear pidikkaan oru flanch undu. eee flanchin kaamshaaft gearinum idayil, camshaftinu injection pump oodikkunna mattoru gear undu. kaamshaafttinte madhyathil, moonnaamathe gear oayil pump nayikkunnu. overhead vaalvukalkk eratta valve springukalundu; oro silindarinum ore valippathilulla oru inlettum oru outlettu valvum undu. tappettukal, pushrodukal, rocker kaikal ennivayaal vaalvukal thallappedunnu. venkala bairingukalil pinthunaykkunna rocker aayudangal eerppamulla sump lubrication samvidaanathaal lubricate cheyyappedunnu. oronninum oru thirashcheena scru upayogichu avaa surakshithamaan. kaamshaafttile flanchin kaamshaaft gearinum edayilulla gear nayikkunna oru boshh "sais eiii" injection pump vazhi indhanam injection nosilukalilekku pump cheiyunnu. kuthivayppu pambil oru hele-shhaa klachum oru numatic govarnor undu.
lubrication samvidaanavum sahaaya upakaranangalum.
oayil pump oayil sambile enchinte madhyabhaagathu gadippichu crankesil gadippikkunnu. sambil ninnu oayil filteriloode pradhana lubrication oayil paippilekku enna pump cheiyunnathinu oru arippa oru kuzhiyum ulla oru cheria oayil pipe undu. enna marddam krameekarikkunnathinulla bharana valve eluppathil axus cheyyaavunnathaanu. phaan pidichirikkunna vaattar pump enchinte munvashathulla silindar headle gadippichirikkunnu. govarnore nayikkunna oru belttaan ithu nayikkunnath.

