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Alex Mariei

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Salut.

 

Sunt nou pe acest forum asa ca sper ca am postat unde trebuie. Ma numesc Alex, am 22 de ani si sunt student in anul 4 la Mecanica in Iasi. Am ca tema pentru licenta sistemul VANOS si acum caut documentatia care sa ma ajute sa o elaborez. Pe unde pot sa gasesc ceva care sa ma ajute, am cautat pe google si nu am fost multumit de ce am gasit ( o fi si din cauza ca nu am cautat unde trebuie :) ) Orice informatie ma ajuta foarte mult.

 

Multumesc.

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Salut.

 

Sunt nou pe acest forum asa ca sper ca am postat unde trebuie. Ma numesc Alex, am 22 de ani si sunt student in anul 4 la Mecanica in Iasi. Am ca tema pentru licenta sistemul VANOS si acum caut documentatia care sa ma ajute sa o elaborez. Pe unde pot sa gasesc ceva care sa ma ajute, am cautat pe google si nu am fost multumit de ce am gasit ( o fi si din cauza ca nu am cautat unde trebuie :) ) Orice informatie ma ajuta foarte mult.

 

Multumesc.

 

 

poti face un email la bmw... sa le explici cine esti si ce ai de gand... in scop stintific ar putea sa te ajute cred... nu sunt sigur dar merita sa incerci.. daca nu doar de pe google... siteuri de specialitate care vand componente pentru vanos etc oricum putin ... si tre sa pui de la tine mult

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Aici Ar fi informatii mai detaliate despre distributia variabila la bmw.

Insa mai sus e vorba mai mult de valvetronic, urmasul Vanosului :)

 

Mai jos ai o explicatie in engleza despre Vanos/dublu Vanos.

 

The VANOS system is based on an adjustment mechanism able to modify the position of the camshaft versus the crankshaft, thus providing the essential technology for variable valve timing. When used for the first time, the system featured only two-stage adjustment of the intake camshaft. Then, moving on to the next step in a consistent process of evolution, BMW's engineers created the current solution with infinite adjustment of the intake and outlet camshaft – which explains the name double-VANOS.

 

 

 

What are the practical implications of double-VANOS?

The fundamental advantage is that the system controls the reflow of hot exhaust gases into the intake manifold individually for all operating conditions (i.e., for every conceivable combination of engine load and speed). This we refer to as "internal" exhaust gas recirculation allowing very fine dosage of the amount of exhaust gas recycled. While the engine is warming up, VANOS improves the fuel/air mixture and helps to quickly warm up the catalytic converter to its normal operating temperature. When the engine is idling, in turn, the system keeps idling speeds smooth and consistent thanks to the reduction of exhaust gas recirculation to a minimum. Under part load exhaust gas recirculation is increased to a much higher level, allowing the engine to run on a wider opening angle of the throttle butterfly in the interest of greater fuel economy. And under full load, finally, the system switches back to a low recirculation volume providing the cylinders with as much oxygen as possible.

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Doamne, ce nivel scazut.

 

Isi face lucrarea de licenta pentru o facultate de unde iesi inginer de pe google si de pe forumuri.

 

O lucrare de licenta trebuie sa aiba o bibliografie sigura.

Pe internet sunt tot felul de informatii, multe gresite.

 

Inseamna ca si lucrarile de licenta au ajuns ca referatele.

 

Cu el n-am nimic. Sistemul e de vina.

 

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