1 Nov Effective relationship in between Valvetronic Engine & BMW. 25 Jul the n55 bmw s first turbocharged valvetronic engine 1 x time to explain the Valvetronic technology on their Youtube channel. In , the new four-cylinder engine launched by BMW was the world’s first SI Since the launch of Valvetronic, its technology has undergone continuous.

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DME provides raw data to an on-board computer that uses an alphanumeric display to provide you with information such as the average fuel consumption, the distance you can still valvetronic engine technology with fuel in the tank, an average speed, outside temperature and more.

Its most important feature is that it is able to save at least 10 per cent fuel throughout the entire operating range relevant to the customer, with a corresponding reduction in exhaust emissions, regardless of fuel quality.

However, the Valvetronic system valvetronic engine technology variable valve lift to the inlet cam, achieved by the use of a lever positioned between the camshaft and the inlet valves. In engines without valvetronic technology fuel valvetronic engine technology systems monitor the volume of air passing through the throttle butterfly and determine the corresponding amount of fuel required by the engine.

The cams controlling the eccentric shaft are machined to tolerances of a few hundredths of a millimeter. EnginesVideos July 25th, by Horatiu Boeriu 2. Valvetronic allows the engine to run without a throttle butterfly, valvetronic engine technology cylinder charge being determined under part load as a function of the valve-opening period.


BMW introduces revolutionary VALVETRONIC engine technology

Cylinder heads with Valvetronic use an extra set of rocker arms, called intermediate arms lift scalerpositioned between the valve stem and valvetronic engine technology camshaft.

Compared valvwtronic conventional twin-cam engines with finger followers, Valvetronic employs an additional eccentric shaft, an electric motor and several intermediate rocker arms, which in turn activates the opening and closing of valves. Your email address will not be published.

DME has a fail-safe program techhology the event of certain electrical faults. Automotive engineers refer to this phenomenon as “pumping valvetronic engine technology.

I purchased a new miles 4 series and the check engine light came on. Why would those parts fail on a engind new car? During part-throttle valvetronic engine technology, the injector pulse-width is also modified by the readings from the oxygen sensor, a device that sits in the exhaust collector and determines how much oxygen is left over in the exhaust.

The intake manifold between the throttle and the combustion chamber has a partial vacuum, resisting the sucking and pumping action of the pistons, wasting energy.

Valvetronics Published on Valvetronic engine technology 28, Because the intake valves now valvetronic engine technology the ability to move from fully closed to fully open positions, and everywhere in between, the primary means of engine load control is transferred from the throttle plate to the intake valve train. Innovative technology was essential in order to reach the demanding objectives and functional requirements desired.

By eliminating the throttle plate’s “bottleneck” in the intake track, pumping losses are reduced, valvetronic engine technology economy and responsiveness are improved. This is a significant 0. The pistons are still running, taking air from the partially closed intake manifold.

Valvetronic – Wikipedia

Whenever we are required to make a great effort, we human beings breathe in a deep and long tehnology of ventilation. At light throttle, the throttle butterfly partially or even nearly closes.


The three main tasks DME has to perform are 1 injecting the right amount of fuel and 2 providing a spark at the correct time. The Valvetronic system has a conventional intake cam, but it also valvetronic engine technology a secondary eccentric shaft with a series of levers and roller followers, activated by a stepper motor.

In a conventional combustion engine the throttle butterfly valvetronic engine technology basically comparable to a human being keeping his nose or mouth at least partially closed.


This movement alone, without valvetronic engine technology movement of the intake camshaft, can open or close the intake valvetronnic. The folks at Engineering Explained took the time to explain the Valvetronic technology on their Youtube channel. Should I be concerned? Valvetronic is one of those terms often thrown around by BMW in their press releases, but seldom is being explained to the masses.

Learn how your comment data is processed. These intermediate arms are able to pivot on a central point, by means of an extra, electronically actuated camshaft. A comparison with the human being clearly explains how Valvetronic valvetronci An additional valvetronic engine technology shaft alters the lever’s distance from the camshaft, with the eccentric’s position determined by a worm drive from an electric motor.