CN209743053U - Cylinder head of engine, engine and vehicle - Google Patents
Cylinder head of engine, engine and vehicle Download PDFInfo
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- CN209743053U CN209743053U CN201822213316.5U CN201822213316U CN209743053U CN 209743053 U CN209743053 U CN 209743053U CN 201822213316 U CN201822213316 U CN 201822213316U CN 209743053 U CN209743053 U CN 209743053U
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- valve spring
- boss
- cylinder head
- engine
- valve
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Abstract
The utility model provides a cylinder head, engine and vehicle of engine, the cylinder head of engine includes: body, valve spring and boss. The body is provided with a valve spring mounting seat; the valve spring is arranged on the valve spring mounting seat; the boss set up in the body, just the boss is located the radial outside of valve spring mount pad. Therefore, through the arrangement of the lug boss, the rigidity and the strength of the body can be improved without adding other parts, the cylinder cover can meet the use requirement, the weight of the cylinder cover can be reduced, the manufacturing cost of the cylinder cover can be reduced, the lightweight design of the cylinder cover can be realized, and the performance of an engine can be improved.
Description
Technical Field
The utility model relates to a vehicle technical field, in particular to cylinder head, engine and vehicle of engine.
Background
engines have been developed for 140 years since german utility model, pioneer in 1876. A higher acceleration, a higher speed, and a stronger durability have been sought for a passenger vehicle using an engine as a power source. To achieve higher acceleration and higher speed, weight reduction is one approach. On the other hand, in order to cope with global climate change after 2020, each party will strengthen global response to the threat of climate change and control greenhouse gas emission as soon as possible. CO2 is a major greenhouse gas, and its emissions are increasingly gaining attention. As is known, the fuel of an engine is mainly petroleum derivatives, the main component of which comprises element C, whose combustion necessarily produces CO 2. To reduce CO2 emissions, efficient combustion to reduce engine fuel consumption is an important approach. At present, mainstream manufacturers develop engines with high thermal efficiency, and with the increasing power of the engines, the overall strength of the cylinder cover is increasingly required.
In the related art, an oil pool of an engine is used as a mounting surface of a cylinder cover bolt and a valve spring, the rigidity requirement is more and more emphasized by various host factories, the thickness of the oil pool bottom plate is increased in a common rigidity enhancing mode, the existing oil pool bottom plate is integrally thickened, the defects of weight and cost increase exist, and the lightweight design concept is not met.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a cylinder head of engine to solve the problem that the cylinder head of engine is of big quality, with high costs, is not conform to the lightweight design.
in order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a cylinder head of an engine includes: body, valve spring and boss. The body is provided with a valve spring mounting seat; the valve spring is arranged on the valve spring mounting seat; the boss set up in the body, just the boss is located the radial outside of valve spring mount pad.
In some examples of the present invention, the boss is a plurality of bosses, and a plurality of bosses are arranged around the valve spring mount, and adjacent two of the bosses are spaced apart.
In some examples of the present invention, the number of the bosses is two, two the bosses are arranged with respect to the valve spring mounting seat in a radial direction, the center line of the valve spring mounting seat and the center of the cam on the cylinder head define a first plane, and the bosses are located on the first plane.
in some examples of the invention, the first plane bisects the boss in a thickness direction of the boss.
In some examples of the invention, the height of the boss satisfies the relation for h: h is more than or equal to 2 mm.
In some examples of the invention, the thickness of the boss satisfies the relation a: a is more than or equal to 2 mm.
in some examples of the invention, the boss is integrally formed with the body.
In some examples of the invention, the valve spring mount is provided with a valve guide mounting hole.
compared with the prior art, the cylinder head of engine have following advantage:
According to the utility model discloses a cylinder head of engine, through setting up the boss, do not increase the rigidity and the intensity that other spare parts just can promote the body, can make the cylinder head satisfy the operation requirement to, also can reduce the weight of cylinder head, can reduce the manufacturing cost of cylinder head, also can realize the lightweight design of cylinder head, thereby can promote the performance of engine.
Another object of the present invention is to provide an engine.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
An engine comprises the cylinder cover of the engine.
The engine and the cylinder head of the engine have the same advantages compared with the prior art, and the detailed description is omitted.
Another object of the present invention is to provide a vehicle.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
A vehicle comprises the engine.
The vehicle has the same advantages of the engine compared with the prior art, and the detailed description is omitted.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of a cylinder head according to an embodiment of the present invention;
Fig. 2 is an enlarged view of a valve spring mounting seat and a boss of a cylinder head according to an embodiment of the present invention;
Fig. 3 is a partial cross-sectional view of a cylinder head according to an embodiment of the present invention.
Description of reference numerals:
A cylinder head 10;
A body 1; a valve spring mount 11; a centerline 12; valve guide mounting holes 13;
A valve spring 2; a boss 3;
A cam 4; a center 41;
a valve guide 20; a valve 201; a hydraulic tappet 202; a roller rocker arm 203; a valve spring seat 204; a valve collet 205.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 3, a cylinder head 10 of an engine according to an embodiment of the present invention includes: body 1, valve spring 2 and boss 3. The body 1 may have a valve spring mount 11. The valve spring 2 may be provided on the valve spring mount 11. The boss 3 may be disposed on the body 1, and the boss 3 may be located on a radial outer side of the valve spring mounting seat 11, it should be noted that the boss 3 may be located on a radial outer side of each valve spring mounting seat 11, and the boss 3 may protrude upward.
The utility model discloses an in some embodiments, boss 3 and body 1 can be integrated into one piece spare, so set up the overall structure intensity that can promote boss 3 and body 1, can prevent that the junction of boss 3 and body 1 from splitting to can guarantee the operational reliability of boss 3.
The boss 3 can be integrally cast with the body 1 of the cylinder head 10, so that the cylinder head 10 can be conveniently manufactured, and the structure of the cylinder head can be simpler. Moreover, the boss 3 is arranged on the radial outer side of the valve spring mounting seat 11, the rigidity and the strength of the body 1 can be improved without adding other parts, and when the valve spring mounting seat 11 is subjected to the force of the valve spring 2, the deformation of the cylinder cover 10 can be reduced, so that the cylinder cover 10 can meet the use requirement. In addition, compared with the prior art that the thickness of the body 1 is increased, the weight of the cylinder cover 10 can be reduced by arranging the boss 3, the manufacturing cost of the cylinder cover 10 can be reduced, the lightweight design of the cylinder cover 10 can be realized, and the performance of an engine can be improved.
therefore, by providing the boss 3, the rigidity and strength of the body 1 can be improved without adding other parts, the cylinder head 10 can meet the use requirements, the weight of the cylinder head 10 can be reduced, the manufacturing cost of the cylinder head 10 can be reduced, the lightweight design of the cylinder head 10 can be realized, and the performance of the engine can be improved.
The utility model discloses an in some embodiments, boss 3 can set up to a plurality ofly, and a plurality of bosses 3 can arrange around valve spring mount pad 11, and two adjacent boss 3 spaced apart settings can promote body 1's structural strength and rigidity better so set up, can make near 11 structural strength and rigidity of valve spring mount pad promoted better to can guarantee the operational reliability of cylinder head 10, and then can make a plurality of bosses 3 arrange the position more rationally.
In some embodiments of the present invention, as shown in fig. 2 and fig. 3, the bosses 3 may be set to two, two bosses 3 are set relative to the valve spring mounting seat 11 in the radial direction, the center line 12 of the valve spring mounting seat 11 and the center 41 of the cam 4 on the cylinder head 10 determine the first plane, the bosses 3 are located on the first plane, the setting enables the bosses 3 to be located on the rotation plane of the cam 4, the rigidity of the cylinder head 10 can be improved, and when the valve spring mounting seat 11 is acted by the spring force of the valve spring 2, the deformation of the cylinder head 10 can be reduced.
In some embodiments of the present invention, as shown in fig. 3, the boss 3 is equally divided by the first plane in the thickness direction of the boss 3, so that the setting position of the first plane is more reasonable, and the boss 3 can be ensured to be located on the rotation plane of the cam 4.
In some embodiments of the present invention, the height of the boss 3 satisfies the relation: h is larger than or equal to 2mm, namely, the height of the boss 3 is larger than or equal to 2mm, so that the rigidity of the valve spring mounting seat 11 can be improved, the valve spring mounting seat 11 can be prevented from being broken, and the service life of the valve spring mounting seat 11 can be prolonged.
in some embodiments of the present invention, the thickness of the boss 3 may be set to satisfy the following relation: a is more than or equal to 2mm, namely, the thickness of the boss 3 is more than or equal to 2 mm. Wherein, if the height of boss 3, thickness are less than 2mm, then have the problem of current casting process shaping difficulty, easily take place the casting quality defect and lead to the product unqualified to, the structure of boss 3 also can't provide sufficient use rigidity demand, consequently, set up the height of boss 3, thickness to be more than or equal to 2mm, can avoid taking place the casting quality defect and lead to the emergence of the unqualified condition of product, can make boss 3 provide sufficient use rigidity.
In some embodiments of the present invention, as shown in fig. 1 and fig. 2, the valve spring mounting seat 11 may be provided with a valve guide mounting hole 13, a valve guide 20 may be installed in the valve guide mounting hole 13, and after the valve guide 20 is installed in the valve guide mounting hole 13, the valve 201 may be installed in the valve guide 20. And, the body 1 may be provided with a hydraulic tappet mounting hole, and the hydraulic tappet 202 may be mounted in the hydraulic tappet mounting hole.
At the lower end of the roller rocker arm 203, one side of the roller rocker arm 203 may be a hydraulic tappet 202, and the other side of the roller rocker arm 203 may be a valve 201. The hydraulic tappet 202 is a stationary component during the operation of the engine, and is mounted in a hydraulic tappet mounting hole on the cylinder head 10, and the hydraulic tappet 202 serves as a fulcrum of the roller rocker arm 203. When the cam 4 rotates, forcing the roller rocker arm 203 to press the valve 201 downwards, the valve spring mount 11 will be subjected to an increasing downward valve spring 2 force. Meanwhile, the position of the contact line is also changed continuously along with the change of the downward swing of the roller rocker arm 203 because the roller rocker arm 203 is in line contact with the valve 201. During the change of the contact line between the roller rocker arm 203 and the valve 201, a lateral force with a constantly changing magnitude is generated in the plane of rotation (i.e., the first plane) of the cam 4. Because the valve 201 is in clearance fit with the valve guide 20, the valve 201 will be in a certain inclined state under the action of lateral force. Since the valve spring retainer 204 is rigidly connected to the valve 201 via the valve collet 205, the valve spring retainer 204 tilts as the valve 201 tilts. The valve spring seat 204 is a contact plane of the valve spring 2 corresponding to the other end of the valve spring mounting seat 11, and when the valve spring seat 204 is inclined, an included angle is formed between the valve spring seat 204 and the valve spring mounting seat 11. Under the action of the included angle, the stress of the valve spring 2 generates force difference in the rotation plane of the cam 4 and on two sides of the valve 201, on one hand, the stress on one side of the valve spring mounting seat 11 is overlarge, and further the cylinder cover 10 is deformed, and on the other hand, the valve spring 2 slides in the valve spring mounting seat 11. Through set up boss 3 on cam 4 rotation plane, reach near the regional effect that sets up rigidity promotion structure of the biggest atress of valve spring mount pad 11, can effectively promote the rigidity of valve spring mount pad 11, also can block that valve spring 2 takes place to slide.
And, with the rotation of the cam 4, the valve 201 will perform the movement of opening downward and closing upward. When the valve 201 moves downward, the contact line between the roller rocker arm 203 and the valve 201 moves from the near hydraulic lifter 202 side to the far hydraulic lifter 202 side across the axis of the valve 201. When the contact line between the roller rocker arm 203 and the valve 201 is in the axial motion section of the valve 201 from the side close to the hydraulic tappet 202, the end part of the valve 201, which is in contact with the roller rocker arm 203, inclines to the hydraulic tappet 202; when the contact line between the roller rocker arm 203 and the valve 201 is in the section of movement of the valve 201 axially away from the hydraulic lifter 202, the end of the valve 201 in contact with the roller rocker arm 203 is inclined toward the hydraulic lifter 202.
during the upward closing motion of the valve 201, the contact line between the roller rocker arm 203 and the valve 201 will move from the far hydraulic tappet 202 side to the near hydraulic tappet 202 side across the valve 201 axis. When the contact line between the roller rocker arm 203 and the valve 201 is in the axial motion section of the valve 201 from the far hydraulic tappet 202 side, the end of the valve 201, which is in contact with the roller rocker arm 203, inclines to the far hydraulic tappet 202 side; when the contact line between the roller rocker arm 203 and the valve 201 is in the movement section of the valve 201 in which the axis thereof is closer to the hydraulic lifter 202, the end of the valve 201 that contacts the roller rocker arm 203 is inclined toward the hydraulic lifter 202. As described above, when the valve 201 is driven by the cam 4 to open and close, the inclination direction of the valve 201 is switched twice, and at least two bosses 3 are provided on the periphery of the valve spring mounting seat 11 and the rotation plane of the cam 4, so that the rigidity of the valve spring mounting seat 11 can be ensured.
According to the utility model discloses the engine, cylinder head 10 including above-mentioned embodiment, cylinder head 10 sets up and installs in the top of engine, cylinder head 10 can be used for the spare part of sealed combustion chamber, this cylinder head 10 is through setting up boss 3, do not increase the rigidity and the intensity that other spare parts just can promote body 1, can make cylinder head 10 satisfy the operation requirement, and, also can reduce the weight of cylinder head 10, can reduce the manufacturing cost of cylinder head 10, also can realize the lightweight design of cylinder head 10, thereby can promote the performance of engine, and simultaneously, it does not have the influence to set up the manufacturing of boss 3 to the engine.
According to the utility model discloses the vehicle, including the engine of above-mentioned embodiment, the engine sets up and installs on the vehicle, this engine can promote whole car dynamic performance, can reduce vehicle greenhouse gas emission, also can improve whole car performance and oil consumption, and, the cylinder head 10 of engine is through setting up boss 3, rigidity and intensity that do not increase other spare parts just can promote cylinder head 10, can make cylinder head 10 satisfy the operation requirement, and, also, can reduce the weight of vehicle, can reduce the manufacturing cost of vehicle, also can realize the lightweight design of vehicle, thereby can promote the performance of engine.
the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A cylinder head (10) of an engine, characterized by comprising:
a body (1), the body (1) having a valve spring mount (11);
The valve spring (2), the said valve spring (2) is set up on the said valve spring mount pad (11);
The valve spring mounting seat comprises a boss (3), wherein the boss (3) is arranged on the body (1), and the boss (3) is located on the radial outer side of the valve spring mounting seat (11).
2. The cylinder head (10) of the engine according to claim 1, wherein the boss (3) is plural, the plural bosses (3) being arranged around the valve spring mount (11), adjacent two of the bosses (3) being spaced apart.
3. The cylinder head (10) of an engine according to claim 2, characterized in that the bosses (3) are two, the two bosses (3) being disposed diametrically opposite with respect to the valve spring mount (11), a center line (12) of the valve spring mount (11) and a center (41) of a cam (4) on the cylinder head (10) defining a first plane on which the bosses (3) lie.
4. A cylinder head (10) of an engine according to claim 3, characterized in that the first plane bisects the boss (3) in a thickness direction of the boss (3).
5. The cylinder head (10) of an engine according to claim 1, wherein the height h of the boss (3) satisfies the relation: h is more than or equal to 2 mm.
6. the cylinder head (10) of the engine according to claim 1, wherein the boss (3) has a thickness a satisfying the relation: a is more than or equal to 2 mm.
7. The cylinder head (10) of the engine according to claim 1, wherein the boss (3) is integrally formed with the body (1).
8. the cylinder head (10) of the engine according to claim 1, wherein the valve spring mount (11) is provided with a valve guide mounting hole (13).
9. An engine, characterized by comprising a cylinder head (10) of an engine according to any one of claims 1-8.
10. A vehicle characterized by comprising the engine of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213316.5U CN209743053U (en) | 2018-12-27 | 2018-12-27 | Cylinder head of engine, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213316.5U CN209743053U (en) | 2018-12-27 | 2018-12-27 | Cylinder head of engine, engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743053U true CN209743053U (en) | 2019-12-06 |
Family
ID=68702866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822213316.5U Active CN209743053U (en) | 2018-12-27 | 2018-12-27 | Cylinder head of engine, engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743053U (en) |
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2018
- 2018-12-27 CN CN201822213316.5U patent/CN209743053U/en active Active
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