CN205876540U - It seals liner and seal assembly to increase compacting - Google Patents

Abstract

The utility model relates to the field of automobiles, and discloses a pressurized sealing liner and a sealing assembly. The pressurized sealing liner is made of an inner core made of a high-temperature-resistant material and a ring-shaped liner, and the inner core is filled in the liner. In the pipe; the sealing assembly includes a first flange, a second flange and a pressurized sealing gasket, the second flange is pressed against the first flange, and an annular groove is opened on the first flange , the pressurized sealing gasket is installed in the annular groove, and the second flange presses the pressurized sealing gasket in the annular groove. The pressurized sealing gasket of the utility model adopts the structure of filling the inner core made of high-temperature-resistant material in the ring-shaped liner, and can form a linear seal with the flange joint under the premise that the sealing gasket can withstand high temperature. , has a good sealing effect; and does not need to open holes in the gasket, so that the gasket has a small volume, is not limited by the shape of the flange, and has good versatility.

Description

Pressurized sealing gasket and sealing components

technical field

The utility model relates to the field of automobiles, in particular to a pressurized sealing gasket and a sealing assembly.

Background technique

With the popularization of turbocharging technology, turbochargers are more and more widely used in the engine development process, and the sealing requirements of the high-temperature gas at the inlet and outlet of the turbocharger volute are also getting higher and higher. At present, the sealing method of the inlet and outlet flange joints of the turbocharger volute is generally sealed by flat gaskets, and holes need to be adaptively drilled on the flat gaskets according to the position and number of connecting bolts of the flanges.

However, there are the following problems in the way of sealing with flat gaskets: (1), the universality of flat gaskets is low, and different flat gaskets need to be designed according to different flange connection structures; (2), the assembly process of gaskets is relatively Complicated, the bolts need to pass through the flat gaskets in turn during assembly, which wastes man-hours; (3), the sealing part of the flat gaskets is wider, resulting in a larger design size of the joint surface of the flange, which is not conducive to the arrangement of the supercharger.

Utility model content

The purpose of the utility model is to provide a pressurized sealing liner and sealing assembly with strong versatility, simple assembly process and small volume.

In order to achieve the above object, the utility model provides a pressurized sealing gasket, comprising an inner core made of high temperature resistant material and an annular liner, the inner core is filled in the liner.

As a preferred solution, the inner core is made of mica particles; the liner is rolled from a metal sheet with opposite first and second lapping edges, and the outer wall of the first lapping edge is attached to Lean against the inner wall of the second overlapping edge.

As a preferred solution, the shape of the pressurized sealing gasket is circular, elliptical, square or polygonal.

As a preferred solution, the liner section of the pressurized sealing gasket is circular or oval.

In order to solve the same problem, the utility model also provides a sealing assembly, including a first flange, a second flange and the above-mentioned pressurized sealing gasket, the second flange is pressed against the first flange On the flange, an annular groove is opened on the first flange, the pressurized sealing gasket is sleeved in the annular groove, and the pressurized sealing gasket is pressed by the second flange inside the annular groove to form a linear seal.

As a preferred solution, the depth of the annular groove is smaller than the pipe diameter of the liner.

As a preferred solution, the annular groove is circular, and the pressurized sealing gasket is oval.

As a preferred solution, the side walls of the first flange and the second flange are provided with a plurality of connecting ears, the connecting ears are provided with through holes, and the connecting ears on the second flange are connected to the The connecting ears of the first flange are matched correspondingly and locked by screws.

As a preferred solution, the sealing assembly is arranged at the connection between the volute of the turbocharger and the catalytic converter; or, the sealing assembly is arranged at the connection between the volute of the turbocharger and the exhaust manifold.

The pressurized sealing gasket and sealing assembly of the utility model, wherein the pressurized sealing gasket adopts the structure of filling the inner core made of high-temperature resistant material in the ring-shaped liner, under the premise that the sealing gasket can withstand high temperature , can form a linear seal with the flange joint, and has a good sealing effect; and does not need to open holes in the gasket, so that the gasket has a small volume, is not limited by the shape of the flange, and has good versatility.

Description of drawings

Fig. 1 is a schematic diagram of the structure of a pressurized sealing gasket in an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional view of a pressurized sealing gasket according to an embodiment of the present invention;

Fig. 3 is a schematic cross-sectional view of a sealing assembly according to an embodiment of the present invention;

Fig. 4 is a schematic front view of the first flange of the embodiment of the present invention.

Among them: 1. Pressurized sealing gasket; 11. Liner; 111. First lap; 112. Second lap; 12. Inner core; 2. First flange; 21. Annular groove; 3 , the second flange; 4, the connecting ear; 5, the through hole.

detailed description

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

As shown in Figure 1 and Figure 2, the pressurized sealing gasket 1 of the embodiment of the present invention includes an annular liner 11 and an inner core 12 filled in the liner 11 and made of high temperature resistant materials; The pressurized sealing liner 1 of the utility model can be installed at the connection of two flanges, and the cross section of the pressurized sealing liner 1 is elastically deformed by pressing the flange, so that the pressurized sealing liner 1 is compatible with the two flanges. The joint surface of the flange forms a linear seal to ensure the reliability of the seal at the joint of the two flanges.

Please continue to refer to Fig. 1 and Fig. 2, the liner 11 can be made of a high temperature resistant metal sheet through rolling process, and the opposite first lapping edge 111 and second lapping edge 112 of the metal sheet are rolled After overlapping with each other, the outer wall of the first overlapping edge 111 is attached to the inner wall of the second overlapping edge 112, so that the cross-section of the liner 11 is roughly circular or oval, and the liner 11 with such a cross-sectional shape is It can have better load capacity when under pressure.

When the liner 11 is squeezed, the first overlapping edge 111 and the second overlapping edge 112 can move relatively, so that the liner 11 can be easily deformed, and the cross section of the liner 11 is flattened, so that the liner The contact between the pipe 11 and the flange is converted from line contact to surface contact to obtain a better sealing effect; and the inner core 12 provides good support for the liner 11, so that the liner 11 will not be deformed too severely and cause the liner 11 to be damaged. damage, resulting in seal failure; when the pressure on the liner 11 is unloaded, the liner 11 returns to its original shape under the action of elastic restoring force.

Please continue to refer to Figure 1, the shape of the booster sealing gasket 1 can be circular, elliptical, square or polygonal to fit flanges of different shapes; of course, the shape of the booster sealing gasket 1 is not limited Based on the above four shapes, other special-shaped structures can also be adaptively adopted according to the actual application scene of the flange.

As shown in Figure 3 and Figure 4, the embodiment of the utility model also provides a sealing assembly, which includes the pressurized sealing gasket 1, the first flange 2 and the second flange 3 of the above embodiment; wherein, in The end surface of the first flange 2 is provided with an annular groove 21, the pressurized sealing gasket 1 is sleeved in the annular groove 21, and the depth of the annular groove 21 is smaller than the pipe diameter of the liner 11 of the pressurized sealing gasket 1 , when the second flange 3 and the first flange 2 are correspondingly fastened and connected, the end face of the second flange 3 and the first flange 2 will squeeze the pressurized sealing gasket 1 to cause deformation, so that the booster The part of the pressure sealing gasket 1 exposed in the annular groove 21 is pressed into the annular groove 21 to substantially fill the space of the annular groove 21, so that the pressurized sealing gasket 1, the annular groove 21 and the second method Lan 3 forms a good linear seal, which simplifies the assembly process of the seal assembly.

3 and 4, a plurality of connecting ears 4 are provided on the side walls of the first flange 2 and the second flange 3 (the connecting ears of the second flange 3 are not shown in the figure). 4 is provided with a through hole 5, and the connecting ear on the second flange 3 is matched with the connecting ear 4 on the first flange 2 correspondingly, and is locked by screws. The purpose of setting the annular groove 21 on the first flange 2 is to facilitate the adaptation of the pressurized sealing gasket 1, so as to improve the versatility of the pressurized sealing gasket 1, that is, the first flange 2 may not be considered. And the number and position of the connecting ears 4 on the second flange 3 and the restriction of shape factors such as the middle opening of the flange, as long as the end face of the first flange 2 can have the condition of opening the annular groove 21, therefore, this The sealing assembly of the embodiment of the utility model can also simplify the installation structure of the first flange 2 and the second flange 3 and reduce the volume of the first flange 2 and the second flange 3 .

As shown in Figure 4, in this figure, for the convenience of illustration, half of the booster sealing gasket 1 and the annular groove 21 are shown respectively, wherein the annular groove 21 can be circular, and the booster sealing gasket 1 is preferably The advantage of this design is that when the elliptical pressurized sealing gasket 1 is sleeved on the annular groove 21, due to the difference in shape between the two, the pressurized sealing gasket 1 is limited. Due to the shape of the annular groove 21, deformation occurs, so that the pressurized sealing gasket 1 has a tendency to return to its original shape and is fastened in the annular groove 21, thereby preventing the pressurized sealing gasket 1 from The annular groove 21 falls off.

The sealing assembly in the above embodiments can be arranged at the junction of the volute of the turbocharger and the catalytic converter, or at the junction of the volute of the turbocharger and the exhaust manifold, so that the present embodiment can The sealing components in it play a better sealing effect.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (9)

1. A pressurized sealing gasket, characterized in that it comprises an inner core made of high temperature resistant material and an annular liner, the inner core is filled in the liner. 2. The pressurized sealing gasket according to claim 1, wherein the inner core is made of mica particles; the liner is made of a metal sheet with opposite first and second lapping edges It is rolled, and the outer wall of the first overlapping edge is attached to the inner wall of the second overlapping edge. 3. The pressurized sealing gasket according to claim 1 or 2, characterized in that, the shape of the pressurized sealing gasket is circular, elliptical, square or polygonal. 4. The pressurization sealing gasket according to claim 1 or 2, characterized in that, the liner section of the pressurization sealing gasket is circular or elliptical. 5. A sealing assembly, comprising a first flange and a second flange, the second flange is pressed against the first flange, characterized in that, it also includes the For the pressurized sealing gasket, an annular groove is opened on the first flange, the pressurized sealing gasket is sleeved in the annular groove, and the second flange seals the pressurized A sealing gasket is compressed into the annular groove to form a linear seal. 6. The seal assembly of claim 5, wherein the depth of the annular groove is less than the diameter of the liner. 7 . The seal assembly according to claim 5 , wherein the annular groove is circular, and the pressurized sealing gasket is oval. 7 . 8. The sealing assembly according to claim 5, 6 or 7, wherein a plurality of connecting ears are provided on the side walls of the first flange and the second flange, and the connecting ears are provided with through holes, the connecting ears on the second flange correspond to the connecting ears of the first flange, and are locked by screws. 9. The seal assembly according to claim 5, characterized in that, the seal assembly is arranged at the connection between the volute of the turbocharger and the catalytic converter; or, the seal assembly is arranged at the volute of the turbocharger The junction of the shell and the exhaust manifold.