CN203248276U - Engine cylinder gasket - Google Patents

Abstract

The utility model discloses an engine cylinder head gasket, which comprises a cylinder head gasket body. The cylinder head gasket body is provided with functional holes. The function holes include four cylinder holes arranged in sequence. The cylinder head gasket body is a double-layer metal plate structure, including An upper plate and a lower plate, the upper part of the lower plate forms a turnback portion at the circumferential edge position of each cylinder hole, and the upper plate is provided with an arc-shaped groove corresponding to the turnback portion at the circumferential edge position of each cylinder hole The upper plate and the lower plate are sealed and riveted to each other, the connection structure is stable and the riveting seams are tight, and there is no gas or liquid leakage. Stronger, with greater elasticity, and better sealing.

Description

Engine cylinder head gasket

technical field

The utility model relates to an engine component, in particular to an engine cylinder pad.

Background technique

The cylinder gasket is located between the cylinder block and the cylinder head of the engine, and its main function is to seal the high-pressure gas, lubricating oil and coolant when the engine is running. After the cylinder head bolts of the engine are tightened, the cylinder head gasket, through its own structure, reasonably distributes the compression force converted from the bolt torque to various parts that need to be sealed to complete the seal.

In the prior art, cylinder head gaskets are provided with cylinder holes corresponding to engine block cylinders, focusing on the overall elasticity and sealing performance of the cylinder head gaskets, while ignoring the elastic requirements of the periphery of the cylinder holes and the impact on the sealing performance of the cylinder head gaskets, resulting in poor sealing of the cylinder head gaskets. affect the overall performance of the engine.

Therefore, it is necessary to improve the cylinder head gasket of the engine to ensure the elastic requirements and sealing performance of the periphery of the cylinder bore and improve the overall sealing effect of the cylinder block.

Utility model content

In view of this, the utility model provides an engine cylinder head gasket, which ensures the elastic requirements and sealing performance of the periphery of the cylinder hole, and improves the overall sealing effect of the cylinder body.

The engine cylinder head gasket of the utility model includes a cylinder head gasket body, and the cylinder head gasket body is provided with functional holes, and the function holes include four cylinder holes arranged in sequence, and the cylinder head gasket body is a double-layer metal plate structure, including An upper plate and a lower plate that are fixedly connected, the upper part of the lower plate forms a turn-back portion at the circumferential edge position of each cylinder hole, and the upper plate is provided at a position corresponding to the turn-back portion at the circumferential edge position of each cylinder hole There are curved grooves.

Further, the functional holes also include water holes for cooling liquid to pass through, and the water holes are evenly distributed along the periphery of the cylinder bore, and the water holes include circular water holes and strip-shaped water holes.

Further, the functional hole also includes an oil inlet hole for lubricating oil to pass through and an oil return hole for oil return. There are two oil inlet holes, which are arranged at both ends of the short side of one side of the cylinder head gasket body. There are four oil return holes arranged along the long side of one side of the cylinder gasket body.

Further, the functional holes also include several bolt holes for installing the cylinder head gasket body, and the bolt holes are arranged on the long sides of the cylinder head gasket body in rows.

Further, the upper plate and the lower plate are sealed and riveted by rivets, and the upper plate and the lower plate are correspondingly provided with riveting holes, and the number of the riveting holes is four, arranged in rows on the long sides of the two-layer metal pad.

Further, the center-to-center distance between two adjacent cylinder holes is 82mm.

Further, the center-to-center distance between two adjacent oil return holes is 82mm.

Further, the center distance between the two oil inlet holes is 112mm.

Beneficial effects of the utility model: the engine cylinder head gasket of the utility model includes an upper plate and a lower plate which are mutually sealed and riveted, the connection structure is stable and the riveting seam is tight, and no gas or liquid leaks, and the upper part of the lower plate corresponds to the circumferential edge of the cylinder hole. In the folded part, the upper plate is provided with an arc-shaped groove corresponding to the folded part, which has strong rigidity, greater elasticity, and better sealing performance.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a sectional view of Fig. 1A-A;

Fig. 3 is a sectional view taken along the line H-H of Fig. 1 .

Detailed ways

Figure 1 is a schematic structural view of the utility model, Figure 2 is a cross-sectional view of Figure 1A-A, and Figure 3 is a cross-sectional view of Figure 1H-H, as shown in the figure: the engine cylinder gasket of this embodiment includes the cylinder gasket body, the The cylinder gasket body is provided with functional holes, as shown in Figure 1, the functional holes include cylinder hole 1, cylinder hole 1a, cylinder hole 1b and cylinder hole 1c arranged in sequence, and the cylinder gasket body is a double-layer metal plate The structure includes an upper plate 2 and a lower plate 3 fixedly connected, and the upper part of the lower plate 3 forms a folded part 4 at the circumferential edge position of each cylinder hole. As shown in FIG. 1 , the upper part of the lower plate 3 corresponds to the cylinder hole 1 and the cylinder hole 1a are provided with a turning part 4 and a turning part 4a, and the turning part of the lower plate corresponding to the cylinder hole 1b and the cylinder hole 1c is not shown in the figure, and the upper plate 2 is on the circumference of each of the cylinder holes 1 An arc-shaped groove 5 is provided at the edge position corresponding to the folded portion.

In this embodiment, the functional holes also include water holes for cooling liquid to pass through, and the water holes are evenly distributed along the periphery of the cylinder hole, and the water holes include circular water holes 6 and strip water holes 7; As shown in the figure, the strip-shaped water holes are located at the periphery of each cylinder hole, and the circular water holes are located at the junction of two adjacent cylinder holes.

In this embodiment, the functional holes also include an oil inlet hole 8 for lubricating oil to pass through and an oil return hole 9 for oil return. There are two oil inlet holes 8 arranged on one side of the cylinder head gasket body There are four oil return holes 9 at both ends of the short side, which are arranged along the long side of one side of the cylinder gasket body.

In this embodiment, the functional holes also include several bolt holes 10 for installing the cylinder gasket body, and the bolt holes are arranged on the long sides of the cylinder gasket body; the bolt holes are used for assembling the The bolts for fixing the cylinder gasket to the cylinder head and the cylinder block. In this embodiment, ten bolt holes are arranged symmetrically in rows to ensure the stress balance of the connecting surface, the connection strength and the overall sealing performance of the cylinder gasket and the cylinder block.

In this embodiment, the upper plate 2 and the lower plate 3 are sealed and riveted by rivets 11, and the upper plate and the lower plate are correspondingly provided with riveting holes, and the number of riveting holes is four, arranged in the two layers of metal The long sides on both sides of the pad; the sealing riveting has the advantages of high connection strength and good sealing effect, preventing water leakage and oil leakage.

In this embodiment, the center-to-center distance between two adjacent cylinder holes 1 is 82 mm; the cylinder holes are set corresponding to the engine cylinders to ensure the corresponding size and meet the production requirements.

In this embodiment, the center distance between two adjacent oil return holes 9 is 82 mm; the oil return holes are set corresponding to the oil return circuit in the cylinder body of the engine, and the size meets the production requirements and satisfies the smooth flow of the lubricating oil circuit.

In this embodiment, the distance between the centers of the two oil inlet holes 8 is 112mm; Lubricating oil enters the oil circuit smoothly.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (8)

1. engine cylinder ring, comprise the head gasket body, described head gasket body is provided with functional hole, described functional hole comprises four cylinder-bore that set gradually, it is characterized in that: described head gasket body is the double-level-metal plate structure, comprise the upper plate and the lower plate that are fixedly connected with, described lower plate top forms reflex part in the circumferential edges position of each described cylinder-bore, and described upper plate is provided with arc groove at the corresponding described reflex part in the circumferential edges position of each described cylinder-bore.

2. engine cylinder ring according to claim 1 is characterized in that: described functional hole also comprises the water hole of passing through for cooling liquid, and described water hole is along the even cloth setting of described cylinder-bore periphery, and described water hole comprises circular water hole and bar shaped water hole.

3. engine cylinder ring according to claim 2, it is characterized in that: described functional hole also comprises the oil inlet hole that passes through for lubricant oil and the spill port that is used for oil return, described oil inlet hole is two, be arranged in described head gasket body one side minor face two ends, described spill port is four, arranges along the long limit of described head gasket body one side.

4. engine cylinder ring according to claim 3, it is characterized in that: described functional hole comprises that also several are used to install the bolt hole of described head gasket body, described bolt hole apportion is located at long limit, described head gasket body both sides.

5. engine cylinder ring according to claim 4 is characterized in that: described upper plate and lower plate are by the rivet sealing riveting, and described upper plate and lower plate correspondence are provided with riveted holes, and described riveted holes is four, and apportion is located at long limit, described double layer of metal pad both sides.

6. engine cylinder ring according to claim 5 is characterized in that: the hole heart of adjacent two described cylinder-bore is apart from being 82mm.

7. engine cylinder ring according to claim 6 is characterized in that: the hole heart of adjacent two described spill ports is apart from being 82mm.

8. engine cylinder ring according to claim 7 is characterized in that: described two oil inlet hole hole hearts are apart from being 112mm.

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