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Discutii generale masini Discutii generale despre masini : Colt Legislativ, Taxa Inmatriculare, Intrebari-Raspunsuri, Recomandari, Accidente

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Old 11-05-06, 21:04   #286
einstein1984

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Ma tem ca nu inteleg. Poate elaborezi ultima fraza de mai sus.
"A turbo spins very fast; most peak between 80,000 and 150,000 rpm (using low inertia turbos, 190,000 rpm) depending on size, weight of the rotating parts, boost pressure developed and compressor design. Such high rotation speeds would cause problems for standard ball bearings leading to failure so most turbo-chargers use fluid bearings. These feature a flowing layer of oil that suspends and cools the moving parts."
Detalii foarte interesante la : http://en.wikipedia.org/wiki/Turbocharger

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Old 11-05-06, 21:21   #287
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Eu am zis ca nu prea exista frecare acolo exact ce ai zis si tu "and it allows the shaft to spin without much friction.", nu vad ce nu e clar. Cat despre baia de ulei, s-ar putea sa fi folosit termenul de arbore cotit gresit. Crankshaft paremise ca ii zice in engleza. Piesa care e conectata de piston si invarte axul principal(cel care invarte rotile), care trece printr-o baie de ulei pentru a se minimiza frecarea cu aerul pe cat posibil si implicit pentru a mari eficienta motorului.
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Old 11-05-06, 21:35   #288
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Gresit. Ia incearca sa bati din palme in aer si mai apoi in apa. Care e mai dificila? Si uleiul e mai vascos de cateva ori decat apa.
Ca motorul sa mearga bine, trebuie sa aiba ulei putin in baie (putin peste semnul de min de pe joja), nu mult. Daca contragreutatile lovesc uleiul, acesta poate sa spumeze si motorul iroseste energie inutil agitand uleiul. Baia de ulei e jos din motive de gravitatie, acolo se scurge tot uleiul din motor. Motoare mai capabile (Chevy Corvette Z-06, motorul LS7, motoarele de curse ) au rezervor separat de ulei, adica carter sec, cu niste pompite care aduna uleiul din motor si-l trimit in rezervorul acela. De acolo, uleiul e trimis de o pompa de ulei la lagarele arborelui cotit, la arborele cu came, la jeturile de racire ale pistoanelor si pe unde mai e nevoie de el.
O sa razi, dar exista si lagare pe baza de aer, cu ungere gazodinamica.
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Old 15-05-06, 04:10   #289
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am si eu o mare nelamurire.. va rog explicatzi`mi si mie cum vin la bmw`uri seriile alea e60 e93 e-nu stiu cat.. care si ce model e sa stiu si eu de acuma mersy .. putetzi pune la fiecare si cate o poza sa inteleg mai bine
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Old 15-05-06, 17:39   #290
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Quote:
Originally Posted by ESPinoza
am si eu o mare nelamurire.. va rog explicatzi`mi si mie cum vin la bmw`uri seriile alea e60 e93 e-nu stiu cat.. care si ce model e sa stiu si eu de acuma mersy .. putetzi pune la fiecare si cate o poza sa inteleg mai bine
Si eu am aceeasi dilema.....
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Old 15-05-06, 18:01   #291
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Quote:
Originally Posted by ESPinoza
am si eu o mare nelamurire.. va rog explicatzi`mi si mie cum vin la bmw`uri seriile alea e60 e93 e-nu stiu cat.. care si ce model e sa stiu si eu de acuma mersy .. putetzi pune la fiecare si cate o poza sa inteleg mai bine
http://www.turnermotorsport.com/html/e_code.shtml
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Old 21-05-06, 14:07   #292
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sau www.bmwinfo.com
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Old 02-06-06, 18:22   #293
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Daca puteti sa-mi spuneti si mie in ce consta segmentarea unui motor??

Stiu unele chestii despre,poate chiar gresite,dar nu-s sigur.

Multumesc frumos.
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Old 03-06-06, 08:14   #294
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Se scoate chiulasa, se scoate baia de ulei, se demonteaza capacele de biela, se scot bielele cu tot cu pistoane (cu tot cu camasi daca e nevoie), se inlocuiesc segmentii pistoanelor, se remonteaza tot (garnitura de chiulasa, prezoane chiulasa, suruburi biela , toate noi).
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Old 03-06-06, 10:04   #295
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am o americana cu motor 8V de 5000cmc,injectie multipunct.consuma cam mult pt buzunarul meu,dar nu pot renunta la ea .pot pune GPL?
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Old 03-06-06, 19:16   #296
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Nu vad de ce nu, truckurile americane vin din fabrica cu GPL, dar problema e ca nu stiu daca gasesti la noi piese de gaz pentru ea. Iar o instalatie pentru multipunct cred ca e vreo 500-1000 de euro (cu injector de gaz pe fiecare cilindru).
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Old 04-06-06, 22:21   #297
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Saru' mana pt lamurire.

M-ai mai luminat si pe mine cu unele chestii.
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Old 11-06-06, 13:20   #298
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ok...am si io o intrebare...chiar de n00b
ce semnifica acel numar de leasing negru... mi-a spus cineva k ar fi vorba de o data sau ceva de genu asta...si m-am contrazis cu el intruna...
plz help me out
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Old 11-06-06, 17:53   #299
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Quote:
Originally Posted by Gabriel_xenon
ok...am si io o intrebare...chiar de n00b
ce semnifica acel numar de leasing negru... mi-a spus cineva k ar fi vorba de o data sau ceva de genu asta...si m-am contrazis cu el intruna...
plz help me out
Numarul in sine nu reprezinta nimic, dar in capatulul din dreapta are scris mult mai mic data la care se termina leasingul.
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Old 11-06-06, 22:46   #300
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multumesc mult pdw
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