The bypass valve pressure in the car

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2019-07-08 05:00:22

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The Bypass valve is rotated with the exhaust gases, which spin it, passing through the blades of the impeller. Propeller (a rotating impeller) spins a turbine wheel that creates the pressure in the reservoir. Determine the level of this pressure total amount of air passing through the turbine.

bypass valve

The Number and speed of the exhaust  depend on the frequency of rotations of the engine, that is, the more done per minute of the revs and the more power the turbine passes through a greater number of exhaust gases, respectively, creates more pressure.

On the impeller of the turbine exhaust gas flow needs to be reduced. Often in stock cars use an internal wastegate valve of the turbine, which are derived directly from the turbine housing the exhaust gases. But a lot of the pressure valves are set to the entrance, replacing part of the exhaust manifolds or installing a cross pipe.

bypass valve turbine

Internal bypass valve has a large opening through which exhaust gas enters. In the inner valve has a special valve covering this hole during operation of the turbine (when you set the required pressure). This valve connects with a lever located on the outside of the turbine. And it is connected with the lever of the activator, which is a pneumatic device that converts pressure into linear motion using a spring and diaphragm. The activator lever actuates the valve to its full opening.

Solenoid – is a special device that is installed before the activator that changes coming to the activator pressure. With the change of cycles the solenoid passes through less or more air. It is controlled by computer, which reads the parameters pressure and gives the orders to increase or decrease the pressurization by closing or opening the valve.

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pressure valves

The Lever itself moves freely, balanced on the mount. If this is not happening and he's not moving freely, when separated from the valve rod, then there is some problem and it needs to be corrected. Sometimes the lever can move jerky, especially when heated. The length of thrust of the activator is different depending on the regulation of the degree of closeness/openness of the bypass valve. The delay shortens the thrust valve, and the relaxation prolongs. If the bypass valve is closed more tightly, and thrust in short, to open the activator needs more pressure.

External bypass valve is a separate device that is designed to work regardless of the turbine housing. Usually they are calculated on the greater air flow compared to the internal. A large part has a dual activator promotes rapid opening of the valve and providing, thereby, a better control for the untwisting of the turbine. External valves can have different spring with the replacement which can be set the minimum boost level.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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