ENGINE CONTROL VALVE IN A MOTOR VEHICLE

Abstract

The invention relates to an engine control valve (100) for a vehicle, comprising a flap (112) rotatably mounted in a valve body (126) around an axis (114) separating said flap (112) into a first part (112A) and a second part (112B), said flap (112) being able to cooperate with sealing means of the valve body (126) in a closed position to stop the flow of a fluid through said flap (112) for which the first part (112A) sealingly cooperates with a first planar surface (128) of the sealing means and the second part (112B) sealingly cooperates with a second planar surface (130) of the sealing means. According to the invention, the sealing means are resiliently deformable and the first planar surface (128) and the second planar surface (130) of the sealing means are comprised in a same plane.

Claims

1. An engine control valve for a motor vehicle, comprising: a flap rotatably mounted in a valve body around an axis separating said flap into a first part and a second part, said flap being able to cooperate with sealing means of the valve body in a closed position to stop the flow of a fluid through said flap wherein the first part sealingly cooperates with a first planar surface of the sealing means and the second part sealingly cooperates with a second planar surface of the sealing means, wherein the sealing means are resiliently deformable and in that the first planar surface and the second planar surface of the sealing means are comprised in a same plane.

2. The valve according to claim 1, wherein the first part of the flap comprises a planar surface intended to bear on the first planar surface of the sealing means and the second part of the flap comprises a planar surface intended to bear on the second planar surface of the sealing means, the first and second planar surfaces of the sealing means and the planar surfaces of the first and second parts of the flap being comprised in a same plane in the closed position.

3. The valve according to claim 1, wherein the sealing means comprise first and second annular seals with axes perpendicular to the axis of the flap and superimposed on one another, the first seal comprising a first portion protruding toward the inside of the valve relative to a first portion of the second seal and bearing the first planar surface, the second seal comprising a second portion protruding toward the inside of the valve relative to a second portion of the first seal and bearing the second planar surface.

4. The valve according to claim 1, wherein the sealing means are stainless steel.

5. A motor vehicle, comprising at least one valve according to claim 1.

6. A motor vehicle, comprising an engine according to claim 5.

Description

[0021] The invention will be better understood and other details, features and advantages of the invention will appear upon reading the following description done as a non-limiting example in reference to the appended drawings, in which:

[0022] FIG. 1 is a schematic sectional view in a plane perpendicular to the axis of the flap of an engine control valve according to the known technique, this figure having been discussed previously;

[0023] FIG. 2 is a schematic sectional view along a plane perpendicular to the axis of the flap of an engine control valve according to the invention.

[0024] Reference will now be made to FIG. 2, which shows an engine control valve 100 according to the invention comprising a flap 112 mounted pivoting around a rotation axis 114. The flap 112 comprises first 112A and second 112B parts connected to one another at the rotation axis 114. The first 112A and second 112B parts of the flap 112 are parallelepiped in section. The first part of the flap 112 comprises a first planar surface 118A and a second planar surface 118B that are opposite one another. Similarly, the second part 112B of the flap 112 comprises a first planar surface 120A and a second, opposite planar surface 120B. One end of the first part 112A of the flap 112 is arranged on the axis 114 such that its first surface 118A is opposite the axis 114 relative to its second surface 118B. The second part 112B of the flap 112 is applied at one end by its first planar surface 120A on the first planar surface 118A of the first part 112A of the flap 112.

[0025] The first part 112A and the second part 112B of the flap 112 have constant thicknesses in a direction parallel to the axis 114.

[0026] According to the invention, two resiliently deformable annular seals 122, 124 are superimposed on one another and are fastened at their outer periphery on the inner structure 126 of the valve body 100.

[0027] A first seal 122 comprises a first portion 122A protruding toward the inside of the valve 100 relative to a first portion 124A of the second seal 124 and is, in the closed position of the flap 112, arranged across from the first part 112A of the flap 112. This first protruding portion 122A of the first seal 122 comprises a first planar surface 128 intended to come into contact in the closed position with the first planar surface 118A of the first part 112A of the flap 112.

[0028] The second seal 124 comprises a second portion 124B protruding toward the inside of the valve 100 relative to a second portion 122B of the first seal 122 and is arranged, in the closed position of the flap 112, opposite the second part 112B of the flap 112. This second protruding portion 124B of the second seal 124 comprises a first planar surface 130 intended to come into contact in the closed position with the first planar surface 120A of the second part 112B of the flap 112.

[0029] As shown in FIG. 2, the planar surface 128 of the first protruding portion 122A of the first seal 122, the planar surface 130 of the protruding portion 12B of the second seal 12 and the first planar surfaces 118A, 120A of the first and second parts 112A, 112B of the seal 112 are situated in a same plane in the closed position, which makes it possible to reduce the impact of the machining allowances of the first and second parts of the flap 112 and the seals 122, 124 on the sealing of the valve 100 in the closed position.

[0030] In one practical embodiment of the invention, the annular seals 122, 124 are made from a metal material such as stainless steel. Each seal 122, 124 can for example have a thickness of about 3 mm.

[0031] The term “annular” used in relation with the seals 122, 124 here means that the seal has a closed contour, seen along the axis of the seal. It will be understood that any type of closed contour can be used as long as the shape is suitable for cooperating with a flap 112 in a valve according to the invention.