AN INJECTION VALVE HAVING CONTROL CHAMBER TECHNICAL FIELD

The present invention relates to an injection valve in order to be used in internal combustion engines. PRIOR ART

In internal combustion engines, the spraying of the fuel into the combustion chamber is realized by means of injection valves. The fuel, entering into the injection valve through an inlet channel, is transferred towards the valve region through a control chamber. Afterwards, in the valve region, the fuel is transferred to the combustion chamber in a controlled manner by the valve member.

In said embodiments, it is desired that the fuel moves in a vortex manner inside the control chamber, in other words, it is desired that the fuel moves by rotating around the center axis inside said control chamber.

As a result, because of all of the abovementioned problems, an improvement is required in the related technical field. BRIEF DESCRIPTION OF THE INVENTION

The present invention relates to an injection valve, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field. The main object of the present invention is to provide an injection valve where the fuel advances by rotating inside the control chamber.

In order to realize all of the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention is an injection valve for use in internal combustion engines and having at least one control chamber, at least one center axis extending at the center of said control chamber, and at least one inlet channel in order to provide fuel entry into the control chamber. Accordingly, the present invention is characterized in that the inlet axis of the inlet channel defined in the extension direction of the inlet channel is positioned in a manner not intersecting the center axis.

In a preferred embodiment of the subject matter invention, pluralities of inlet channels are provided around the center axis such that equal distance is provided in between.

In another preferred embodiment of the subject matter invention, the inlet channel is positioned at different heights. BRIEF DESCRIPTION OF THE FIGURES

In Figure 1 , a representative detailed view of the subject matter injection valve is given.

In Figure 2a and 2b, the isometric and top views of the control chamber of the subject matter injection valve are given.

In Figure 3a and 3b, the top views of the alternative embodiments of the control chamber of the subject matter injection valve are given. REFERENCE NUMBERS

10 Control chamber

20 Inlet channel

a: Center axis

b: Inlet axis

X: x axis

Y: y axis

THE DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the subject matter injection valve is explained with references to examples without forming any restrictive effect in order to make the subject more understandable. As can be seen in Figure 1 , 2a and 2b, the subject matter injection valve comprises a control chamber (10), and at least one inlet channel (20) providing fuel entry to said control chamber (10). Said control chamber (10) preferably has a circular form. A center axis (a) is defined at the center of the control chamber (10). The center axis (a) is extending in the direction of the height of the control chamber (10). X axis (x) and y axis (y) are defined which separate the control chamber into four regions in an orthogonal manner with respect to the center axis (a). At the center of the inlet channel (b), there is an inlet axis (b) which defines the extension direction of the inlet channel (20). The inlet axis (b) preferably extends in a parallel manner with respect to the x axis (x) or y axis (y). Preferably, the inlet axis (b) extends in a parallel manner with respect to the x axis (x) or y axis (y) such that a distance remains in between, and the inlet axis (b) extends in an orthogonal manner with respect to the other axis. In other words, the inlet axis (b) does not intersect the center axis (a).

In the alternative embodiment of the present invention, two or more inlet channels (20) can be provided. Accordingly, in case there are two inlet channels (20), it is preferred that there is an angle of 180 degrees between the two inlet channels (20) as can be seen in Figure 3a. In alternative embodiments, the number of inlet channels (20) can be further increased as can be seen in Figure 3b. And accordingly, the inlet channels (20) are arranged such that they are preferably at equal distances with respect to each other.

In another alternative embodiment of the present invention, the inlet channels (20) can be provided at different heights.

In the prior art, since the inlet channel (20) is provided in the center axis (a) direction, the fuel, coming through the inlet channel (20), hits the control chamber (10) inner wall in an orthogonal manner. However, in the subject matter injection valve, the fuel, coming from the inlet channel (20), hits the inner wall of the control chamber (10) at an angle which is smaller than 90 degrees. In other words, the fuel enters into the control chamber (10) in a manner close to the tangent of the inner wall. Thus, the starting of the rotation movement of the fuel around the center axis (a) is facilitated. Since pluralities of inlet channels (20) are provided, vortex formation inside the control chamber (10) is facilitated. In the prior art, the fuel, entering into the control chamber (10), obstructs the rotation of the fuel existing inside the control chamber (10); however, in the subject matter injection valve, the fuel, entering into the control chamber (10), facilitates the rotation of the fuel existing inside the control chamber (10). Moreover, in the alternative embodiment, since the inlet channels (20) are provided at different heights as mentioned, the intersections of the fuel during entry of the fuel through the inlet channels (20) are prevented.

The protection scope of the present invention is set forth in the annexed Claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.