CN214836740U - Cylinder cover structure for engine and vehicle - Google Patents
Cylinder cover structure for engine and vehicle Download PDFInfo
- Publication number
- CN214836740U CN214836740U CN202120366162.2U CN202120366162U CN214836740U CN 214836740 U CN214836740 U CN 214836740U CN 202120366162 U CN202120366162 U CN 202120366162U CN 214836740 U CN214836740 U CN 214836740U
- Authority
- CN
- China
- Prior art keywords
- water jacket
- cylinder
- sub
- cylinder head
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a cylinder cap structure and vehicle for engine, the cylinder cap structure includes: the cylinder cover comprises a cylinder cover body, wherein a plurality of sub-exhaust passages are formed in the cylinder cover body, and each sub-exhaust passage is communicated with a corresponding cylinder; the confluence part is arranged on the cylinder cover body, and a main exhaust passage communicated with the sub exhaust passages is formed inside the confluence part; the cylinder cap water jacket, the cylinder cap water jacket includes: the cylinder cover structure comprises an upper water jacket and a lower water jacket, wherein the upper water jacket and the lower water jacket are both formed in the cylinder cover structure, a first connecting water jacket is arranged between the upper water jacket and the lower water jacket, and the first connecting water jacket is arranged in the confluence part. According to the utility model discloses a cylinder cap structure for engine for the cylinder cap structure of engine is provided with first connection water jacket in the portion of converging, and first connection water jacket is used for the cooling to converge the portion in order to reduce the temperature of the portion of converging, improves the reliability of cylinder cap structure.
Description
Technical Field
The utility model belongs to the technical field of the vehicle and specifically relates to a cylinder cap structure and vehicle for engine is related to.
Background
In the related art, an exhaust manifold of an engine is integrally arranged on a cylinder head of the engine, after the exhaust manifold is integrated with the cylinder head, the heat load of the cylinder head needs to be increased by at least 10% -20%, and the increased heat load needs to be cooled by a cooling water jacket, so that a serious challenge is provided for the cooling capacity of a cooling system; generally, most host plants increase the capacity of the cooling system by increasing the flow rate of the cooling water pump to reduce the thermal load of the engine, but using a high-flow cooling water pump increases the development cost and purchase cost of the water pump; meanwhile, when the flow of the water pump is increased to a certain degree, the flow is increased, the cooling efficiency cannot be improved, the cooling capacity is insufficient, local thermal stress concentration is easily caused, thermal fatigue, cracks and other hidden troubles are generated, and the normal use of the engine is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a cylinder cap structure for engine for the cylinder cap structure of engine is provided with first connection water jacket in the portion of converging, and first connection water jacket is used for cooling the portion of converging in order to reduce the temperature of the portion of converging, improves the reliability of cylinder cap structure.
The utility model discloses still provide a vehicle that has above-mentioned cylinder cap structure.
According to the utility model discloses a cylinder cap structure for engine includes: the cylinder cover comprises a cylinder cover body, wherein a plurality of sub-exhaust passages are formed in the cylinder cover body, and each sub-exhaust passage is communicated with a corresponding cylinder; the confluence part is arranged on the cylinder cover body, and a main exhaust passage communicated with the sub exhaust passages is formed inside the confluence part; the cylinder cap water jacket, the cylinder cap water jacket includes: the cylinder cover structure comprises an upper water jacket and a lower water jacket, wherein the upper water jacket and the lower water jacket are both formed in the cylinder cover structure, a first connecting water jacket is arranged between the upper water jacket and the lower water jacket, and the first connecting water jacket is arranged in the confluence part.
According to the cylinder cover structure, at least part of the water jacket of the cylinder cover is formed in the confluence part, and the confluence part is cooled by cooling water flowing from the lower water jacket to the upper water jacket, so that the cooling efficiency and the heat dissipation area of the exhaust side in the cylinder cover are improved, the temperature of the exhaust end face of the cylinder cover structure is effectively reduced, the thermal deformation of the exhaust end is effectively reduced, the reliability of a product is improved, and the competitiveness of an engine is improved.
According to the utility model discloses an embodiment, first connecting water cover includes: the exhaust system comprises a main exhaust passage, a first sub-connecting water jacket and a second sub-connecting water jacket, wherein the first sub-connecting water jacket and the second sub-connecting water jacket are arranged on two sides of the main exhaust passage at intervals.
According to an embodiment of the present invention, the first sub-connection water jacket and the second sub-connection water jacket are symmetrically arranged in the width direction of the main exhaust passage.
According to the utility model discloses an embodiment, first sub-water jacket of connecting with the second sub-water jacket of connecting all includes: a first upper connecting portion, an upper end of which communicates with the upper water jacket, the first upper connecting portion having a sectional area in a cooling water flow direction that gradually increases; and a first lower connecting portion, an upper end of which communicates with a lower end of the first upper connecting portion, a lower end of which communicates with the lower water jacket, and a sectional area of which in a cooling water flow direction is gradually reduced.
According to the utility model discloses an embodiment, every first sub-size of connecting the water jacket in a plurality of cylinder body array orientation is a, every the size in the thickness direction of first sub-water jacket is b, a/b satisfies: a/b is more than or equal to 1 and less than or equal to 2.
According to an embodiment of the present invention, the cylinder head water jacket has a water inlet end and a water outlet end; and a second connecting water jacket which is separated from the first connecting water jacket is arranged between the upper water jacket and the lower water jacket, is adjacent to the water inlet end and is arranged corresponding to at least one cylinder.
According to an embodiment of the present invention, the second connection water jacket includes: the upper end of the second upper connecting part is communicated with the upper water jacket, and the sectional area of the second upper connecting part in the flow direction of the cooling water is gradually increased; and a second lower connection portion 134b, an upper end of which 134b communicates with a lower end of the second upper connection portion, a lower end of which 134b communicates with the lower water jacket, and a sectional area of which in a cooling water flow direction is gradually reduced.
According to the utility model discloses an embodiment, the size of second connection water jacket on a plurality of cylinder body array direction is c, every the size of second connection water jacket in the thickness direction is d, c/d satisfies: c/d is more than or equal to 2 and less than or equal to 4.
According to the utility model discloses an embodiment, the cylinder cap structure still includes: the heat transfer portion protrudes out of the outer surface of the cylinder cover body and is connected with the confluence portion.
Brief description of the drawings the following is an engine assembly according to the invention
The engine assembly includes: an engine head structure configured as the cylinder head structure for an engine described in any one of the above embodiments; a cylinder body, the cylinder body set up in engine cylinder lid structure downside just includes: one or more first cylinders corresponding to the confluence part; the second air cylinder is one or more than one second air cylinder and is arranged corresponding to the water inlet end; and one or more third cylinders are arranged between the first cylinder and the third cylinder, and the third cylinders are arranged corresponding to the second connecting water jacket.
According to the utility model discloses an engine assembly is provided with the engine cylinder lid structure of above-mentioned embodiment, therefore the cooling effect of this engine is good, and the heat dissipation is balanced and compact structure, has improved engine assembly's reliability height greatly.
The vehicle according to the present invention is briefly described below.
According to the utility model discloses a be provided with the engine assembly of above-mentioned embodiment on the vehicle, because according to the utility model discloses a be provided with the engine assembly in the above-mentioned embodiment on the vehicle, consequently the radiating effect of the engine of this vehicle is good, and the compactness is high, and the spatial arrangement of vehicle is more reasonable, and the maintenance cost of vehicle is low.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is an overall schematic view of a cylinder head structure according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a cylinder head water jacket according to an embodiment of the present invention;
fig. 3 is a schematic view of another orientation of a cylinder head water jacket according to an embodiment of the present invention;
FIG. 4 is a schematic view of a further orientation of a cylinder head water jacket according to an embodiment of the present invention;
fig. 5 is a partial cross-sectional view of a cylinder block structure according to an embodiment of the present invention;
FIG. 6 is an enlarged partial view of circled a in FIG. 5;
FIG. 7 is a side view of the cylinder head structure;
FIG. 8 is a cross-sectional view of section B-B of FIG. 7;
fig. 9 is a schematic diagram of the cylinder structure and the supercharger according to the embodiment of the present invention.
Reference numerals:
the structure of the cylinder cover 1 is provided with a cylinder cover,
the cylinder cover body (11) is provided with a cylinder cover body,
a confluence part 12 and a main exhaust passage 121
A cylinder head water jacket 13, an upper water jacket 131, a lower water jacket 132,
the first connection water jacket 133, the first sub-connection water jacket 1331, the second sub-connection water jacket 1332,
the first upper connection part 1331a, the first lower connection part 1331b,
the second connecting water jacket 134 is provided with,
the second upper connection portion 134a, the second lower connection portion 134b,
the heat transfer portion 14, the inclined end face 141,
a water inlet end 101, a water outlet end 102, a sealing gasket 103, a sealing rib 104, a connecting water jacket 105, a fastener connecting hole 106,
a supercharger 2.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
A cylinder head structure 1 for an engine according to an embodiment of the present invention is described below with reference to fig. 1 to 9.
As shown in fig. 1-3, according to the utility model discloses a cylinder cap structure 1 for engine includes cylinder cap body 11, confluence portion 12 and cylinder cover water jacket 13, is formed with a plurality of sub-exhaust passages in the cylinder cap body 11, every sub-exhaust passage communicates with the cylinder that corresponds, and confluence portion 12 sets up on cylinder cap body 11 and inside is formed with the total exhaust passage 121 with a plurality of sub-exhaust passages intercommunication, and cylinder cover water jacket 13 is formed in cylinder cap body 11 and includes upper portion water jacket 131 and lower part water jacket 132, and upper portion water jacket 131 and lower part water jacket 132 all are formed in cylinder cap structure 1, are provided with first connection water jacket 133 between upper portion water jacket 131 and the lower part water jacket 132, and first connection water jacket 133 sets up in confluence portion 12.
In the related art, an exhaust manifold of an engine is integrally arranged on a cylinder head of the engine, after the exhaust manifold is integrated with the cylinder head, the heat load of the cylinder head needs to be increased by at least 10% -20%, and the increased heat load needs to be cooled by a cooling water jacket, so that a serious challenge is provided for the cooling capacity of a cooling system; generally, most host plants increase the capacity of the cooling system by increasing the flow rate of the cooling water pump to reduce the thermal load of the engine, but using a high-flow cooling water pump increases the development cost and purchase cost of the water pump; meanwhile, when the flow of the water pump is increased to a certain degree, the flow is increased, the cooling efficiency cannot be improved, the cooling capacity is insufficient, local thermal stress concentration is easily caused, thermal fatigue, cracks and other hidden troubles are generated, and the normal use of the engine is influenced.
As shown in fig. 3, at least a portion of the head water jacket 13 is formed in the confluence portion 12, and the confluence portion 12 is radiated by the cooling water flowing from the lower water jacket 132 to the upper water jacket 131, so as to improve the cooling efficiency and the heat radiation area of the exhaust side in the head, effectively reduce the temperature of the exhaust end face of the head structure 1, effectively reduce the thermal deformation of the exhaust end, improve the reliability of the product, and improve the competitiveness of the engine.
The plurality of sub-exhaust passages may be connected to a plurality of cylinders of the engine for guiding exhaust gas generated from the engine out of the cylinders, and the main exhaust passage 121 provided in the merging portion 12 is respectively communicated with the plurality of sub-exhaust passages for collecting exhaust gas, which may be equivalent to an exhaust manifold of a vehicle in the related art.
The temperature of the exhaust gas is high, and the confluence portion 12 is integrally arranged with the cylinder head body 11, so that the temperature of the confluence portion 12 needs to be reduced, the upper water jacket 131 and the lower water jacket 132 arranged in the cylinder head body 11 are communicated through the first connecting water jacket 133, and the first connecting water jacket 133 passes through the confluence portion 12, so that the heat of the confluence portion 12 is taken away, the temperature of the confluence portion 12 is reduced, the temperatures of the confluence portion 12 and the area around the confluence portion 12 are avoided, and the stability of the cylinder head structure 1 is improved.
As shown in fig. 4, according to an embodiment of the present invention, the first connection water jacket 133 includes a first sub-connection water jacket 1331 and a second sub-connection water jacket 1332, and the first sub-connection water jacket 1331 and the second sub-connection water jacket 1332 are disposed at both sides of the main exhaust passage 121 at an interval. The first and second sub-connection water jackets 1331 and 1332 may cool at least two sides of the merging portion 12, and the flow rate of the cooling water flowing through the merging portion 12 is increased by providing the first and second sub-connection water jackets 1331 and 1332, further increasing the heat radiation effect of the cooling water jackets on the merging portion 12.
According to the utility model discloses an embodiment, first sub-connection water jacket 1331 and the sub-symmetrical arrangement of second connection water jacket 1332 on the width mode of total exhaust passage 121, with first sub-connection water jacket 1331 and the sub-symmetrical arrangement of second connection water jacket 1332 on the width direction of total exhaust passage can further improve the radiating effect to portion 12 that converges, make the heat dissipation of portion 12 that converges more balanced, eliminate effectively because the temperature of the portion 12 that converges that waste gas leads to improves, avoid the partial overheat of portion 12 that converges, reduce thermal fatigue.
According to an embodiment of the present invention, each of the first and second sub-connection water jackets 1331 and 1332 includes a first upper connection portion 1331a and a first lower connection portion 1331b, an upper end of the first upper connection portion 1331a communicates with the upper water jacket 131, and a sectional area of the first upper connection portion 1331a in a flow direction of the cooling water is gradually increased; the upper end of the first lower connection portion 1331b communicates with the lower end of the first upper connection portion 1331a, the lower end of the first lower connection portion 1331b communicates with the lower water jacket 132, and the cross-sectional area of the first lower connection portion 1331b in the cooling water flow direction gradually decreases.
The sectional area of the first lower connecting portion 1331b gradually decreases from the bottom surface to the top surface of the cylinder head, so that the cooling water in the lower water jacket 132 is merged to flow upwards along the first lower connecting portion 1331 b; the sectional area of the first upper connection portion 1331a gradually increases from the bottom to the top of the cylinder head, so that the cooling water of the first connection water jacket 133 can flow to the upper water jacket 131 conveniently; avoid appearing the throttle loss, reduce the influence to cooling water flow, improve cooling efficiency.
As shown in fig. 4 and 5, according to an embodiment of the present invention, a dimension of each first sub-connecting water jacket 1331 in the direction of the arrangement of the plurality of cylinder blocks is a, a dimension of each first sub-connecting water jacket in the thickness direction is b, and a/b satisfies: a/b is more than or equal to 1 and less than or equal to 2. It can be understood that the width-to-thickness ratio of each first sub-connection water jacket 1331 is in the range of a/b, and the width-to-thickness ratio is in the range of 1-2, and by arranging the width-to-thickness ratio of the first sub-connection water jacket 1331 between 1-2, the first sub-connection water jacket 1331 and the second sub-connection water jacket 1332 can be closer to the total exhaust passage 121, and the cylinder head exhaust end face structure can be arranged more compactly.
According to one embodiment of the present invention, the cylinder head jacket 13 has a water inlet end 101 and a water outlet end 102; wherein a second connecting water jacket 134 spaced apart from the first connecting water jacket 133 is disposed between the upper water jacket 131 and the lower water jacket 132, and the second connecting water jacket 134 is disposed adjacent to the water inlet end 101 and corresponds to at least one cylinder.
The engine is generally provided with a plurality of cylinders, and the first connecting water jacket 133 is used to cool the joining portion 12 while the temperature of the surrounding area of the cylinder adjacent to the joining portion 12 can be lowered, and the second connecting water jacket 134 can be used to cool the surrounding area of the block corresponding to the other cylinder.
By providing the second connecting water jacket 134, the second connecting water jacket 134 is disposed adjacent to the water inlet end 101 for cooling the surrounding area of the cylinder on the side close to the water inlet end 101.
As shown in fig. 4, according to an embodiment of the present invention, the second connection water jacket 134 includes a second upper connection portion 134a and a second lower connection portion 134b, an upper end of the second upper connection portion 134a communicates with the upper water jacket 131, and a sectional area of the second upper connection portion 134a in a flow direction of the cooling water is gradually increased; the upper end of the second lower connecting portion 134b communicates with the lower end of the second upper connecting portion 134a, the lower end of the second lower connecting portion 134b communicates with the lower water jacket 132, and the sectional area of the second connecting portion in the cooling water flow direction gradually decreases.
The sectional area of the second lower connecting portion 134b gradually decreases from the bottom surface to the top surface of the cylinder head, so that the cooling water in the lower water jacket 132 is merged to flow upwards along the second lower connecting portion 134 b; the sectional area of the second upper connecting portion 134a gradually increases from the bottom surface to the top surface of the cylinder head, so that the cooling water of the second connecting water jacket 134 can flow to the upper water jacket 131 conveniently; avoid appearing the throttle loss, reduce the influence to cooling water flow, improve cooling efficiency.
Further, the second lower connection portion 134b is configured in a shape of "Λ" and the second upper connection portion 134a is configured in a shape of "V" as viewed from the exhaust port direction.
According to an embodiment of the present invention, the dimension of the second connecting water jacket 134 in the plurality of cylinder arrangement direction is c, the dimension of each second connecting water jacket 134 in the thickness direction is d (not shown), and c/d satisfies: c/d is more than or equal to 2 and less than or equal to 4. It can be understood that the width-to-thickness ratio of the second connecting water jacket 134 is in the range of c/d and in the range of 2-4, and the width-to-thickness ratio of the second connecting water jacket 134 is set between 2-4, so that the second connecting water jacket 134 can be ensured to have a larger exhaust passage wrapping area, the cooling area is increased, and the local cooling capacity is enhanced.
The utility model discloses still provide an engine assembly who has above-mentioned cylinder cap structure 1.
The engine assembly includes the engine cylinder head structure 1 and the cylinder block of any one of the above embodiments, and the cylinder block sets up in the engine cylinder head structure 1 downside and includes: : a first cylinder, a second cylinder and a third cylinder, wherein the first cylinder is one or more and is arranged corresponding to the confluence part 12; the second cylinder is one or more than one second cylinder and is arranged corresponding to the water inlet end 101; the third cylinder is arranged between the first cylinder and one or more third cylinders, and the third cylinder is arranged corresponding to the second connecting water jacket 134.
According to the utility model discloses an engine assembly can be in-line cylinder engine or "V" shape cylinder engine, and first cylinder can be one or more, and first cylinder corresponds the setting with portion 12 that converges, sets up the first water jacket that communicates in portion 12 that converges and can be used for cooling first cylinder region around, and portion 12 that converges can set up between two adjacent first cylinders.
And the number of the second cylinders can be one or more, the second cylinders correspond to the water inlet ends 101, and the water inlet ends 101 of the engine can be used for cooling the surrounding area of the second cylinders after entering the water jacket of the cylinder body.
The third cylinder may be disposed between the first cylinder and the second cylinder, and the third cylinder is not corresponding to the water inlet end 101 and the water outlet end 102, and is also far away from the confluence portion 12, so that the second communication water jacket is separately required for cooling the area around the third cylinder.
According to the utility model discloses an engine assembly is provided with the engine cylinder lid structure 1 of above-mentioned embodiment, therefore the cooling effect of this engine is good, and the heat dissipation is balanced and compact structure, has improved engine assembly's reliability height greatly.
The vehicle according to the present invention is briefly described below.
According to the utility model discloses a be provided with the engine assembly of above-mentioned embodiment on the vehicle, because according to the utility model discloses a be provided with the engine assembly in the above-mentioned embodiment on the vehicle, consequently the radiating effect of the engine of this vehicle is good, and the compactness is high, and the spatial arrangement of vehicle is more reasonable, and the maintenance cost of vehicle is low.
In a specific embodiment of the present invention, the engine assembly is an in-line four-cylinder engine, the first cylinders are end cylinders disposed adjacent to the water outlet portion of the water jacket structure, the number of the first cylinders is two, the confluence portion 12 can be disposed between the two first cylinders, the confluence portion 12 is offset on the cylinder head body 11 and disposed adjacent to the water outlet portion, and the confluence portion 12 can be used for cooling the surrounding area structure of the first cylinders; the second cylinder is the initiating terminal cylinder that is close to the end 101 of intaking, and the end 101 of intaking can be used for cooling the second cylinder, can reduce the temperature of the regional around the second cylinder. And the third cylinder may be an intermediate cylinder disposed between the second cylinder and the third cylinder, and the second connecting water jacket 134 corresponds to the intermediate cylinder to ensure the cooling effect of the entire engine.
As shown in fig. 9, according to an embodiment of the present invention, the cylinder head structure 1 includes a cylinder head body 11, a confluence portion 12, a cylinder head water jacket 13 and a heat transfer portion 14, a plurality of sub exhaust passages communicated with a plurality of cylinders are formed in the cylinder head body 11, the confluence portion 12 is disposed on the cylinder head body 11 and is formed with a main exhaust passage 121 communicated with the plurality of sub exhaust passages; the cylinder head water jacket 13 is formed in the cylinder head body 11 and is adapted to circulate cooling water; the heat transfer portion 14 protrudes from the outer surface of the cylinder head body 11 and is connected to the bus portion 12.
In the related technology, the exhaust end surface of the cylinder cover exceeds more than half of the width of the bottom surface of the cylinder cover and protrudes out of the wall surface of the cylinder cover in a cantilever state; the bulge is mainly for each manifold of exhaust joins the part, and the bulge wall will receive the heat of high temperature exhaust gas transmission, receives the high temperature heat of booster passback simultaneously for the heat load of bulge wall is higher, and heat altered shape is great, influences the intensity of bulge wall structure, influences the sealing performance of exhaust face and booster, and the high temperature heat of continuous passback makes the microstructure of cylinder head bulge wall take place rotten, makes the mechanical properties of material attenuate by a wide margin, and the hardness constantly reduces.
The plurality of sub-exhaust passages may be connected to a plurality of cylinders of the engine for guiding exhaust gas generated from the engine out of the cylinders, and the main exhaust passage 121 provided in the merging portion 12 is respectively communicated with the plurality of sub-exhaust passages for collecting exhaust gas, which may be equivalent to an exhaust manifold of a vehicle in the related art.
According to the utility model discloses a cylinder cap structure 1, through set up heat transfer portion 14 between portion 12 and the cylinder cap body 11 converging, can be used for installing booster 2 on the portion 12 that converges, thereby heat transfer portion 14 will converge the heat on the portion 12 and retransfer to the temperature that cylinder cap body 11 reduced portion 12 that converges, reduce the heat load of the portion 12 that converges of protrusion cylinder cap body 11, reduced because of the microstructure that lasts the high temperature firing and lead to takes place the risk that hardness that rotten arouses, improve the structural strength who converges portion 12.
Further, the heat transfer portion 14 can also be used to improve the structural strength of the merging portion 12 and improve the structural stability between the merging portion 12 and the cylinder head body 11.
According to an embodiment of the present invention, the heat transfer portion 14 is a plurality of and arranged at intervals at the periphery of the confluence portion 12. Through setting up a plurality of heat transfer portions 14 can be more evenly with heat transfer to cylinder cap body 11 on the portion 12 that converges for dispel the heat to the portion 12 that converges, through setting up a plurality of heat transfer portions 14, improved the radiating effect to the portion 12 that converges, further reduced the risk that the portion 12 hardness that converges reduces, improved the security and the life of whole car.
As shown in fig. 8, the merging portion 12 protrudes from the outer surface of the cylinder head body 11, the heat transfer portion 14 connects the peripheral wall of the merging portion 12 and the outer surface of the cylinder head body, and the heat transfer portion 14 extends in a direction away from the cylinder head water jacket 13 in a direction close to the merging portion 12 to form an inclined end face 141 at the outer end of the heat transfer portion 14.
The heat transfer part 14 can be constructed into a diagonal beam structure, the strength of connection between the confluence part 12 and the cylinder cover body 11 is further improved, the confluence part 12 protrudes out of the cylinder cover body 11, and one end of the heat transfer part 14, which is far away from the cylinder cover body 11, is set to be an inclined end surface 141, so that the bending moment of the confluence part 12 towards the bottom surface of the cylinder cover can be effectively reduced, and the structural strength and the rigidity of the confluence part 12 are improved.
According to an embodiment of the present invention, the angle between the inclined end surface 141 and the bottom surface of the cylinder head body 11 is α and satisfies: alpha is more than or equal to 35 degrees and less than or equal to 70 degrees.
As shown in fig. 7, according to an embodiment of the present invention, the end surface of the end of the confluence portion 12 away from the cylinder head body 11 is configured as a supercharger mating surface, and the total exhaust passage 121 has an exhaust outlet disposed on the supercharger mating surface. The supercharger 2 can be installed on a supercharger matching surface, and the confluence part 12 provides an installation basis for the installation of the supercharger 2 and ensures the installation stability of the supercharger 2.
As shown in fig. 6, according to an embodiment of the present invention, the cylinder head structure 1 further includes: the sealing gasket 103, the sealing gasket 103 is provided with a sealing rib 104 protruding towards and/or departing from the supercharger matching surface. The sealing gasket 103 is used for sealing a gap between the supercharger matching surface and the supercharger 2, the sealing rib 104 may be configured in an annular shape, and the sealing rib 104 may be disposed around the exhaust outlet to prevent exhaust gas from being discharged from the gap between the supercharger matching surface and the supercharger 2.
According to the utility model discloses a specific embodiment, seal gasket 103 is three layer construction, and the intermediate level of seal gasket 103 is the basic unit, and the one deck structure towards the booster fitting surface is provided with towards the convex first sealed muscle 104 of booster fitting surface, and the one deck structure that deviates from the booster fitting surface is provided with and deviates from the convex sealed muscle 104 of booster fitting surface, and first sealed muscle 104 corresponds the setting with the sealed muscle 104 of second. The first sealing bead 104 and the second sealing bead 104 can improve the sealing effect between the supercharger 2 and the bus bar portion 12.
According to the utility model discloses an embodiment, cylinder cap water jacket 13 includes: the water jacket structure comprises an upper water jacket 131 and a lower water jacket 132, wherein a connecting water jacket 105 is arranged between the upper water jacket 131 and the lower water jacket 132, the connecting water jacket 105 is arranged in the confluence part 12, and at least part of the connecting water jacket 105 is opposite to the sealing rib 104. The connecting water jacket 105 can be used for cooling the supercharger matching surface opposite to the sealing rib 104 so as to reduce the thermal deformation and the thermal load of the supercharger matching surface, and simultaneously reduce the thermal deformation and the thermal load of the sealing rib 104, which is beneficial to maintaining the sealing capability of the sealing rib 104.
As shown in fig. 5, according to an embodiment of the present invention, the minimum distance between the supercharger mating surface and the connection water jacket 105 is e and satisfies: e is more than or equal to 3mm and less than or equal to 15 mm. The distance between the connecting water jacket 105 and the matching surface of the supercharger is set to be 3-15 mm, the distance between the connecting water jacket 105 and the matching surface of the supercharger is more reasonable, the cooling efficiency of the connecting water jacket 105 on the matching surface of the supercharger can be effectively improved, the thermal deformation and the thermal load of the matching surface of the supercharger are effectively reduced, and the sealing capacity of the sealing rib 104 is favorably maintained.
According to an embodiment of the utility model, be provided with a plurality of fastener connecting holes 106 on the booster fitting surface, a plurality of fastener connecting holes 106 encircle the exhaust outlet setting. The fastener connection holes 106 are configured as screw holes for fixing the supercharger 2 and the joining portion 12, and the connection water jacket 105 in the joining portion 12 can further cool the fastener, ensuring the connection stability between the supercharger 2 and the joining portion 12.
The vehicle according to the present invention is briefly described below.
According to the utility model discloses a be provided with cylinder cap structure 1 of above-mentioned embodiment on the vehicle, because according to the utility model discloses a be provided with cylinder cap structure 1 in the above-mentioned embodiment on the vehicle, consequently the radiating effect of the engine of this vehicle is good, and the compactedness is high, and the spatial arrangement of vehicle is more reasonable, and the maintenance cost of vehicle is low.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A cylinder head structure for an engine, characterized by comprising:
the cylinder cover comprises a cylinder cover body, wherein a plurality of sub-exhaust passages are formed in the cylinder cover body, and each sub-exhaust passage is communicated with a corresponding cylinder;
the confluence part is arranged on the cylinder cover body, and a main exhaust passage communicated with the sub exhaust passages is formed inside the confluence part;
the cylinder cap water jacket, the cylinder cap water jacket includes: the cylinder cover structure comprises an upper water jacket and a lower water jacket, wherein the upper water jacket and the lower water jacket are both formed in the cylinder cover structure, a first connecting water jacket is arranged between the upper water jacket and the lower water jacket, and the first connecting water jacket is arranged in the confluence part.
2. The cylinder head structure for an engine according to claim 1, wherein the first connecting water jacket includes: the exhaust system comprises a main exhaust passage, a first sub-connecting water jacket and a second sub-connecting water jacket, wherein the first sub-connecting water jacket and the second sub-connecting water jacket are arranged on two sides of the main exhaust passage at intervals.
3. The cylinder head structure for an engine according to claim 2, wherein the first sub-connecting water jacket and the second sub-connecting water jacket are arranged symmetrically in the width direction of the total exhaust passage.
4. The cylinder head structure for an engine according to claim 3, wherein the first sub-connection water jacket and the second sub-connection water jacket each include:
a first upper connecting portion, an upper end of which communicates with the upper water jacket, the first upper connecting portion having a sectional area in a cooling water flow direction that gradually increases;
and a first lower connecting portion, an upper end of which communicates with a lower end of the first upper connecting portion, a lower end of which communicates with the lower water jacket, and a sectional area of which in a cooling water flow direction is gradually reduced.
5. The cylinder head structure for an engine according to claim 4, wherein a dimension of each of the first sub-connecting water jackets in the direction in which the plurality of cylinders are aligned is a, a dimension of each of the first sub-connecting water jackets in the thickness direction is b, and a/b satisfies: a/b is more than or equal to 1 and less than or equal to 2.
6. The cylinder head structure for an engine according to any one of claims 1 to 5, wherein the cylinder head water jacket has a water inlet end and a water outlet end; wherein
And a second connecting water jacket which is separated from the first connecting water jacket is arranged between the upper water jacket and the lower water jacket, is adjacent to the water inlet end and is arranged corresponding to at least one cylinder.
7. The cylinder head structure for an engine according to claim 6, wherein the second connecting water jacket includes:
the upper end of the second upper connecting part is communicated with the upper water jacket, and the sectional area of the second upper connecting part in the flow direction of the cooling water is gradually increased;
and the upper end of the second lower connecting part is communicated with the lower end of the second upper connecting part, the lower end of the second lower connecting part is communicated with the lower water jacket, and the sectional area of the second connecting part in the flow direction of the cooling water is gradually reduced.
8. The cylinder head structure for an engine according to claim 7, wherein a dimension of the second connecting water jacket in the direction in which the plurality of cylinders are aligned is c, a dimension of each of the second connecting water jackets in the thickness direction is d, and c/d satisfies: c/d is more than or equal to 2 and less than or equal to 4.
9. The cylinder head structure for an engine according to claim 1, further comprising: the heat transfer portion protrudes out of the outer surface of the cylinder cover body and is connected with the confluence portion.
10. A vehicle characterized by comprising the cylinder head structure for an engine according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120366162.2U CN214836740U (en) | 2021-02-09 | 2021-02-09 | Cylinder cover structure for engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120366162.2U CN214836740U (en) | 2021-02-09 | 2021-02-09 | Cylinder cover structure for engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214836740U true CN214836740U (en) | 2021-11-23 |
Family
ID=78883466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120366162.2U Active CN214836740U (en) | 2021-02-09 | 2021-02-09 | Cylinder cover structure for engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214836740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111084A (en) * | 2021-12-16 | 2022-09-27 | 长城汽车股份有限公司 | Cylinder head exhaust side cooling structure, cylinder head and engine |
-
2021
- 2021-02-09 CN CN202120366162.2U patent/CN214836740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111084A (en) * | 2021-12-16 | 2022-09-27 | 长城汽车股份有限公司 | Cylinder head exhaust side cooling structure, cylinder head and engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8584627B2 (en) | Liquid-cooled internal combustion | |
| US20060054112A1 (en) | Water-cooled cylinder head for a multicylinder internal-combustion engine | |
| CN102686862B (en) | For the cylinder head of internal-combustion engine | |
| JPS60190646A (en) | Cooling device for engine cylinder block | |
| JPH07103828B2 (en) | Cylinder head for water-cooled multi-cylinder engine | |
| CN214836740U (en) | Cylinder cover structure for engine and vehicle | |
| JPH0115879Y2 (en) | ||
| CN214499250U (en) | Cylinder cover structure for engine and vehicle | |
| CN111852683A (en) | Cylinder head cooling structure, engine cooling structure and engine | |
| CN111271186B (en) | Cylinder head cooling structure | |
| JP4228209B2 (en) | EGR cooler | |
| JP2008014263A (en) | Cooling structure for internal combustion engine and cylinder head gasket used for same | |
| CN214836735U (en) | Engine for vehicle and vehicle | |
| CN209925078U (en) | Water cooling structure of motorcycle engine | |
| JP2007092706A (en) | Engine | |
| CN214499249U (en) | Engine for vehicle and vehicle | |
| CN217002037U (en) | Engine cooling system and vehicle with same | |
| US20100059010A1 (en) | Heat Insulator For An Intake Manifold Of An Air-Cooled Charge Air Cooler | |
| CN111997727A (en) | Water-cooling exhaust pipe | |
| CN220395843U (en) | Cylinder head, engine and vehicle | |
| CN217501812U (en) | Cylinder head, engine and vehicle | |
| CN217632847U (en) | Circulating water cooling air compressor machine cylinder head | |
| CN109113888A (en) | A kind of cylinder body water jacket enhancing temperature uniformity | |
| CN220909833U (en) | Cylinder, engine and vehicle | |
| CN217029110U (en) | Novel integrated engine cylinder cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |