CN207538937U - A kind of engine cylinder ring and engine with double limiting layers - Google Patents

Abstract

The utility model discloses a kind of engine cylinder rings with double limiting layers, including pad, cylinder-bore is provided on the pad, the pad includes functional layer and flat layer, the functional layer includes the first functional layer and the second functional layer, limiting layer is provided between the flat layer and second functional layer, the limiting layer is fixedly installed on the flat layer, the limiting layer includes the first limiting layer and the second limiting layer, the first limiting layer is respectively arranged at the full muscle both sides with the described second limiting layer, also discloses the engine for being provided with the head gasket.The engine cylinder ring for having double limiting layers of the utility model, two limiting layers are provided on flat layer, plays the role of static sealing, can prevent combustion gas in cylinder from directly impacting full muscle, while enhance the rigidity of cylinder bore region.

Description

A kind of engine cylinder gasket with double limit layer and engine

technical field

The utility model relates to the field of automobile engines, in particular to an engine cylinder pad with double limiting layers and an engine.

Background technique

With the rapid development of the automobile industry, the technology of the cylinder head gasket, which is an important part of the engine, is also developing rapidly, and has transformed from a composite type cylinder head gasket to a metal type cylinder head gasket. Its conversion speed is fast, the scale is large, and the scope is wide, which has exceeded people's expectations. The explosion pressure of the engine is getting higher and higher, and the sealing problem of the high-temperature and high-pressure gas burned in the cylinder is becoming more and more serious. Although the increase of the pre-tightening force of the cylinder head bolts can increase the contact pressure between the cylinder gasket sealing rib and the cylinder head, it cannot guarantee the continuous and uniform contact pressure around the cylinder bore. At the same time, as the burst pressure increases, the longitudinal deformation of the cylinder head will also increase accordingly. The deformation of the cylinder head will not only affect its own reliability, but more importantly, it will cause inaccurate compression of the cylinder gasket, resulting in seal failure.

The function of the cylinder gasket is to ensure the reliable sealing of gas, oil and water during the normal operation of the internal combustion engine. Its working mechanism is to press the cylinder head against the cylinder gasket through the axial force formed by the tightening of the cylinder head bolts. When the sealing ribs arranged on the cylinder head gasket are compressed by the cylinder head, they will produce elastic deformation and form contact pressure with the cylinder head, so as to realize reliable sealing of air, oil, water and other media. During the working process of the engine, especially around the cylinder bore, in order to achieve reliable sealing of the cylinder head gasket, the contact pressure must reach a certain value, and the contact pressure should be uniform and continuous around the sealing rib. Due to the high gas pressure in the cylinder bore, the contact pressure between the sealing rib around the cylinder bore and the cylinder head is relatively large, so the elastic deformation of the sealing rib around it is relatively large. Moreover, due to the high temperature in the cylinder, the sealing ribs are prone to plastic deformation, thus losing the sealing ability. The traditional cylinder head gasket has a short service life, and after a period of use, the sealing performance is reduced, resulting in three leaks. After the cylinder head gasket is disassembled, it cannot be reused, and the maintenance cost is high. In addition, due to the lack of structural rigidity of the exhaust manifold cylinder head of the engine and the open water jacket cylinder block, and the high pressure ratio supercharged engine produces ultra-high pressure gas, it will cause gas sealing problems.

Therefore, it is necessary to improve the cylinder head gasket in the prior art, so as to solve the gas sealing problem of the engine cylinder head gasket.

Utility model content

The purpose of the utility model is to provide an engine cylinder head gasket and an engine with double limiting layers for the deficiencies of the prior art.

The utility model is achieved through the following technical solutions:

An engine cylinder head gasket with double limiting layers, comprising a cushion body, the cushion body is provided with a cylinder hole, the cushion body includes a functional layer and a flat layer, and the functional layer includes a first functional layer and a second functional layer Layer, the flat layer is arranged between the first functional layer and the second functional layer, full ribs are arranged in the first functional layer and the second functional layer, the flat layer and the A limiting layer is arranged between the second functional layers, the limiting layer is fixedly arranged on the flat layer, the limiting layer includes a first limiting layer and a second limiting layer, and the first limiting layer The layer is arranged on the inner side of the circumference where the cylinder hole is located, and the second limiting layer is arranged on the outer side of the circumference where the cylinder hole is located.

Preferably, the limiting layer is welded on the flat layer.

Preferably, the limiting layer is fixed on the flat layer by bolts.

Further, the limiting layer is a metal ring structure.

Further, the pad body is also provided with oil holes, water holes, oil and gas through holes and bolt holes.

Further, full ribs are provided on the first functional layer and the second functional layer corresponding to the circumference of the cylinder bore.

Further, the first limiting layer and the second limiting layer are respectively arranged on both sides of the full rib.

Further, the full rib is an arc-shaped structure bent toward the flat layer.

Specifically, the first full reinforcement is provided in the first functional layer, and the second full reinforcement is provided in the second functional layer.

Further, the first full reinforcement and the second full reinforcement are arranged symmetrically along the flat plate layer.

The utility model also discloses an engine, which comprises the above-mentioned engine cylinder gasket.

The beneficial effects of the utility model are:

(1) The engine cylinder head gasket with double limiting layers of the utility model is provided with two limiting layers on the flat plate, which plays the role of static sealing and can prevent the gas in the cylinder from directly impacting the whole rib;

(2) In the engine cylinder head gasket with double limiting layers of the present invention, metal limiting layers are respectively arranged on both sides inside and outside the cylinder bore, which enhances the rigidity of the cylinder bore region;

(3) The engine cylinder head gasket with double limiting layers of the utility model can effectively seal the gas in the combustion chamber and solve the problem of gas sealing caused by increasing the gas explosion pressure.

Description of drawings

In order to illustrate the technical solution of the utility model more clearly, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the implementation of the utility model For example, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a top view of an engine cylinder head gasket with double limiting layers according to Embodiment 1 of the present invention;

Fig. 2 is the A-A direction sectional view of Fig. 1;

Fig. 3 is a cross-sectional view of the engine cylinder head gasket on the plane where the limiting layer is located in Embodiment 1 of the utility model.

Wherein, the reference numerals in the figure correspond to: 1-first functional layer, 2-slab layer, 3-first limiting layer, 4-second limiting layer, 5-second functional layer, 6-full bar, 61-the first full rib, 62-the second full rib, 7-cylinder bore.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. . Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

See Figure 1-3. As shown in the figure, the utility model discloses an engine cylinder head gasket with double limiting layers, including a cushion body, on which a cylinder hole 7 is arranged, and the cushion body includes a functional layer and a flat layer 2, so that The functional layer includes a first functional layer 1 and a second functional layer 5, the flat layer 2 is arranged between the first functional layer 1 and the second functional layer 5, the first functional layer 1 and the The second functional layer 5 is provided with full ribs 6, and a limiting layer is arranged between the flat plate layer 2 and the second functional layer 5, and the limiting layer includes a first limiting layer 3 and a second limiting layer. The positioning layer 4, the first limiting layer 3 and the second limiting layer 4 are respectively arranged on both sides of the full rib 6.

The limiting layer is welded on the flat plate layer 2 by laser, the limiting layer is a metal ring structure, and the limiting layer plays the role of static sealing, which can prevent the gas in the cylinder from directly impacting the full rib 6, and at the same time The rigidity of the cylinder hole area is enhanced; oil holes, water holes, oil and gas through holes and bolt holes are arranged on the cylinder gasket. Full ribs 6 are provided on the first functional layer 1 and the second functional layer 5 corresponding to the circumference of the cylinder bore 7 . The first limiting layer 3 is arranged inside the circumference where the cylinder hole 7 is located, and the second limiting layer 4 is arranged outside the circumference where the cylinder hole 7 is located. The first limiting layer 3 and the second limiting layer 4 are symmetrically arranged on both sides of the full rib 6 . The full rib 6 is an arc-shaped structure bent toward the flat layer 2 . The full bars 6 include a first full bar 61 and a second full bar 62 , the first full bar 61 is set in the first functional layer 1 , and the second full bar 62 is set in the second functional layer 5 . The first full reinforcement 61 and the second full reinforcement 62 are arranged symmetrically along the flat plate layer 2 . The double limiting layer is the first barrier for the gas in the cylinder, which mainly plays the role of static sealing to prevent the gas from directly impacting the full rib 6 of the functional layer; the full rib 6 is the second barrier, which mainly plays the role of dynamic sealing. When the gas in the cylinder explodes, the surface of the cylinder head and the surface of the cylinder body will move relative to each other, and a separation gap will be generated between the two surfaces. to the sealing effect. The engine cylinder gasket of the utility model has double limiting layers, which can effectively seal the gas in the combustion chamber, effectively solve the problem of gas sealing caused by increasing the gas explosion pressure, and make it possible for the engine to exceed the boosting ratio.

Example 2

The utility model discloses an engine cylinder pad with double limiting layers, which comprises a pad body on which a cylinder hole 7 is arranged, the pad body includes a functional layer and a flat plate layer 2, and the functional layer includes a second A functional layer 1 and a second functional layer 5, the flat layer 2 is arranged between the first functional layer 1 and the second functional layer 5, the first functional layer 1 and the second functional layer 5 are all provided with full ribs 6, and a limiting layer is arranged between the flat plate layer 2 and the second functional layer 5, and the limiting layer includes a first limiting layer 3 and a second limiting layer 4, so The first limiting layer 3 and the second limiting layer 4 are respectively arranged on both sides of the full rib 6 .

The limiting layer is fixed on the flat plate layer 2 by bolts, the limiting layer is a metal ring structure, and the limiting layer plays the role of static sealing, which can prevent the gas in the cylinder from directly impacting the full rib 6, and at the same time The rigidity of the cylinder hole area is enhanced; oil holes, water holes, oil and gas through holes and bolt holes are arranged on the cylinder gasket. Full ribs 6 are provided on the first functional layer 1 and the second functional layer 5 corresponding to the circumference of the cylinder bore 7 . The first limiting layer 3 is arranged inside the circumference where the cylinder hole 7 is located, and the second limiting layer 4 is arranged outside the circumference where the cylinder hole 7 is located. The first limiting layer 3 and the second limiting layer 4 are symmetrically arranged on both sides of the full rib 6 . The full rib 6 is an arc-shaped structure bent toward the flat layer 2 . The double limiting layer is the first barrier for the gas in the cylinder, which mainly plays the role of static sealing to prevent the gas from directly impacting the full rib 6 of the functional layer; the full rib 6 is the second barrier, which mainly plays the role of dynamic sealing. When the gas in the cylinder explodes, the surface of the cylinder head and the surface of the cylinder body will move relative to each other, and a separation gap will be generated between the two surfaces. to the sealing effect. The engine cylinder head gasket of the utility model has double limiting layers, which can effectively seal the combustion chamber gas, and effectively solve the gas sealing problem caused by increasing the gas explosion pressure.

Example 3

The utility model discloses an engine cylinder pad with double limiting layers, which comprises a pad body, on which a cylinder hole 7 is arranged, and the pad body includes a functional layer and a flat plate layer 2, and the functional layer and the The flat layer 2 is riveted, the functional layer includes a first functional layer 1 and a second functional layer 5, the flat layer 2 is arranged between the first functional layer 1 and the second functional layer 5, the Both the first functional layer 1 and the second functional layer 5 are provided with full ribs 6, and a limiting layer is arranged between the flat plate layer 2 and the second functional layer 5, and the limiting layer includes a first limiting layer. The limiting layer 3 and the second limiting layer 4, the first limiting layer 3 and the second limiting layer 4 are arranged on both sides of the full rib 6 respectively.

The limiting layer is riveted on the flat plate layer 2, the limiting layer is a metal ring structure, and the limiting layer plays a role of static sealing, which can prevent the gas in the cylinder from directly impacting the full rib 6, and at the same time strengthen the The rigidity of the cylinder hole area; the cylinder head gasket is provided with cylinder holes 7, oil holes, water holes, oil and gas through holes and bolt holes. Full ribs 6 are provided on the first functional layer 1 and the second functional layer 5 corresponding to the circumference of the cylinder bore 7 . The first limiting layer 3 is arranged inside the circumference where the cylinder hole 7 is located, and the second limiting layer 4 is arranged outside the circumference where the cylinder hole 7 is located. The first limiting layer 3 and the second limiting layer 4 are symmetrically arranged on both sides of the full rib 6 . The full rib 6 is an arc-shaped structure bent toward the flat layer 2 . The full bars 6 include a first full bar 61 and a second full bar 62 , the first full bar 61 is set in the first functional layer 1 , and the second full bar 62 is set in the second functional layer 5 . The first full reinforcement 61 and the second full reinforcement 62 are arranged symmetrically along the flat plate layer 2 . The double limiting layer is the first barrier for the gas in the cylinder, which mainly plays the role of static sealing to prevent the gas from directly impacting the full rib 6 of the functional layer; the full rib 6 is the second barrier, which mainly plays the role of dynamic sealing. When the gas in the cylinder explodes, the surface of the cylinder head and the surface of the cylinder body will move relative to each other, and a separation gap will be generated between the two surfaces. to the sealing effect. The engine cylinder head gasket of the utility model has double limiting layers, which can effectively seal the combustion chamber gas, and effectively solve the gas sealing problem caused by increasing the gas explosion pressure.

Example 4

The utility model discloses an engine cylinder pad with double limiting layers, which comprises a pad body, on which a cylinder hole 7 is arranged, and the pad body includes a functional layer and a flat plate layer 2, and the functional layer and the The flat layer 2 is riveted, the functional layer includes a first functional layer 1 and a second functional layer 5, the flat layer 2 is arranged between the first functional layer 1 and the second functional layer 5, the Both the first functional layer 1 and the second functional layer 5 are provided with full ribs 6, and a limiting layer is arranged between the flat plate layer 2 and the second functional layer 5, and the limiting layer includes a first limiting layer. The limiting layer 3 and the second limiting layer 4, the first limiting layer 3 and the second limiting layer 4 are arranged on both sides of the full rib 6 respectively.

The limiting layer is welded on the flat plate layer 2, the limiting layer is a metal ring structure, and the limiting layer plays a role of static sealing, which can prevent the gas in the cylinder from directly impacting the full rib 6, and at the same time strengthen the The rigidity of the cylinder hole area: the cylinder head gasket is provided with a cylinder hole 7, and the first functional layer 1 and the second functional layer 5 corresponding to the circumference of the cylinder hole 7 are provided with full ribs 6. The first limiting layer 3 is arranged inside the circumference where the cylinder hole 7 is located, and the second limiting layer 4 is arranged outside the circumference where the cylinder hole 7 is located. The first limiting layer 3 and the second limiting layer 4 are symmetrically arranged on both sides of the full rib 6 . The full rib 6 is a semicircular structure bent toward the flat layer 2 . The double limiting layer is the first barrier for the gas in the cylinder, which mainly plays the role of static sealing to prevent the gas from directly impacting the full rib 6 of the functional layer; the full rib 6 is the second barrier, which mainly plays the role of dynamic sealing. When the gas in the cylinder explodes, the surface of the cylinder head and the surface of the cylinder body will move relative to each other, and a separation gap will be generated between the two surfaces. to the sealing effect. The engine cylinder head gasket of the utility model has double limiting layers, which can effectively seal the combustion chamber gas, and effectively solve the gas sealing problem caused by increasing the gas explosion pressure.

Example 5

The utility model discloses an engine cylinder pad with double limiting layers, which comprises a pad body, on which a cylinder hole 7 is arranged, and the pad body includes a functional layer and a flat plate layer 2, and the functional layer and the The flat layer 2 is fixedly connected by bolts, the functional layer includes a first functional layer 1 and a second functional layer 5, and the flat layer 2 is arranged between the first functional layer 1 and the second functional layer 5 , the first functional layer 1 and the second functional layer 5 are provided with full ribs 6, and a limiting layer is arranged between the flat plate layer 2 and the second functional layer 5, and the limiting layer includes The first limiting layer 3 and the second limiting layer 4 are arranged on both sides of the full rib 6 respectively.

The limiting layer is welded on the flat plate layer 2, the limiting layer is a metal ring structure, and the limiting layer plays a role of static sealing, which can prevent the gas in the cylinder from directly impacting the full rib 6, and at the same time strengthen the The rigidity of the cylinder hole area: the cylinder head gasket is provided with a cylinder hole 7, and the first functional layer 1 and the second functional layer 5 corresponding to the circumference of the cylinder hole 7 are provided with full ribs 6. The first limiting layer 3 is arranged inside the circumference where the cylinder hole 7 is located, and the second limiting layer 4 is arranged outside the circumference where the cylinder hole 7 is located. The first limiting layer 3 and the second limiting layer 4 are symmetrically arranged on both sides of the full rib 6 . The full rib 6 is a semicircular structure bent toward the flat layer 2 . The full rib 6 is an arc-shaped structure bent toward the flat layer 2 . The full bars 6 include a first full bar 61 and a second full bar 62 , the first full bar 61 is set in the first functional layer 1 , and the second full bar 62 is set in the second functional layer 5 . The first full reinforcement 61 and the second full reinforcement 62 are arranged symmetrically along the flat plate layer 2 . The double limiting layer of the utility model is the first barrier of the gas in the cylinder, which mainly plays the role of static sealing, preventing the gas from directly impacting the full rib 6 of the functional layer; the full rib 6 is the second barrier, which mainly plays a role of dynamic sealing. The role of sealing. When the gas in the cylinder explodes, the surface of the cylinder head and the surface of the cylinder body will move relative to each other, and a separation gap will be generated between the two surfaces. to the sealing effect. The engine cylinder head gasket of the utility model has double limiting layers, which can effectively seal the combustion chamber gas, and effectively solve the gas sealing problem caused by increasing the gas explosion pressure.

Example 6

The utility model also discloses an engine, which comprises the engine cylinder gasket with double limiting layers in any one of the embodiments 1-5.

The beneficial effects of the utility model are:

(1) The engine cylinder head gasket with double limiting layers of the utility model is provided with two limiting layers on the flat plate, which plays the role of static sealing and can prevent the gas in the cylinder from directly impacting the whole rib;

(2) In the engine cylinder head gasket with double limiting layers of the present invention, metal limiting layers are respectively arranged on both sides inside and outside the cylinder bore, which enhances the rigidity of the cylinder bore region;

(3) The engine cylinder head gasket with double limiting layers of the utility model can effectively seal the gas in the combustion chamber and solve the problem of gas sealing caused by increasing the gas explosion pressure.

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

Claims (10)

1. an engine cylinder head gasket with double limiting layers, comprising a cushion body, the cushion body is provided with a cylinder hole (7), the cushion body comprises a functional layer and a flat plate layer (2), and the functional layer comprises The first functional layer (1) and the second functional layer (5), the flat layer (2) is arranged between the first functional layer (1) and the second functional layer (5), the first functional layer (5) Both the first functional layer (1) and the second functional layer (5) are provided with full ribs (6), and it is characterized in that, between the flat plate layer (2) and the second functional layer (5) A limiting layer, the limiting layer is fixedly arranged on the flat plate layer (2), the limiting layer includes a first limiting layer (3) and a second limiting layer (4), the first limiting layer The positioning layer (3) is arranged inside the circle where the cylinder hole (7) is located, and the second limiting layer (4) is arranged outside the circle where the cylinder hole (7) is located. 2. The engine cylinder head gasket with double limiting layers according to claim 1, characterized in that, the limiting layers are welded on the flat plate layer (2). 3 . The engine cylinder head gasket with double limiting layers according to claim 2 , wherein the limiting layers are metal rings. 4 . 4. An engine cylinder gasket with double limiting layers according to claim 1, characterized in that, the gasket body is also provided with oil holes, water holes, oil and gas through holes and bolt holes. 5. A kind of engine cylinder gasket with double limiting layers according to claim 4, characterized in that, the first functional layer (1) and the second functional layer corresponding to the circumference of the cylinder hole (7) Full ribs (6) are all arranged on the functional layers (5). 6. An engine cylinder head gasket with double limiting layers according to claim 5, characterized in that, the first limiting layer (3) and the second limiting layer (4) are fixedly arranged on the The same side of the flat layer (2). 7. An engine cylinder head gasket with double limiting layers according to claim 6, characterized in that, the first limiting layer (3) and the second limiting layer (4) are arranged symmetrically on the Describe the both sides of the whole tendon (6). 8 . The engine cylinder head gasket with double limiting layers according to claim 7 , characterized in that, the full rib ( 6 ) is an arc-shaped structure bent toward the flat layer ( 2 ). 9. A kind of engine cylinder head gasket with double limiting layers according to claim 8, characterized in that, the full ribs (6) include the first full ribs (61) and the second full ribs (62), so The first full bar (61) is arranged in the first functional layer (1), the second full bar (62) is set in the second functional layer (5), and the first full bar (61) and the The second full reinforcement (62) is arranged symmetrically along the flat layer (2). 10. An engine, characterized by comprising the cylinder head gasket according to any one of claims 1-9.