CN110748432A - Flow guide insert and cylinder block water jacket - Google Patents
Flow guide insert and cylinder block water jacket Download PDFInfo
- Publication number
- CN110748432A CN110748432A CN201910696054.9A CN201910696054A CN110748432A CN 110748432 A CN110748432 A CN 110748432A CN 201910696054 A CN201910696054 A CN 201910696054A CN 110748432 A CN110748432 A CN 110748432A
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- water jacket
- flow
- insert
- cylinder block
- baffle body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/16—Cylinder liners of wet type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a flow guide insert and a cylinder block water jacket, and belongs to the technical field of engine cooling. The flow guide insert is embedded in the water jacket of the cylinder body and comprises a baffle body and a flow guide plate convexly arranged on one side of the baffle body, and the baffle body is shaped along the water jacket of the cylinder body; the guide plate divides the guide insert into an upper guide area and a lower vacant area, two ends of the guide area along the flowing direction of the cooling liquid are respectively a liquid inlet end and a liquid outlet end, and the cooling liquid enters the guide area from the liquid inlet end and flows along the guide plate until flowing out from the liquid outlet end. The flow guide insert is assembled with the cylinder water jacket in a single inserting and embedding mode, and meanwhile, the baffle body which is shaped along with the cylinder water jacket is embedded in the cylinder water jacket, so that the manufacturing cost and the manufacturing difficulty are effectively reduced while the function and the effect are ensured; in addition, the problem of difficult installation caused by manufacturing deviation can be solved.
Description
Technical Field
The invention relates to the technical field of engine cooling, in particular to a flow guide insert and a cylinder block water jacket.
Background
In the development work of the engine, the cylinder block and the cylinder cover are the most important main parts, the performance and the reliability of an engine product are greatly influenced, along with the stricter oil consumption regulation, the heat management gradually becomes a hot point technology in the technical field of automobiles, the cooling of the cylinder block and the cylinder cover is used as the basic content of the heat management of the engine, and the flowing of cooling liquid in a water jacket of the cylinder block and the water jacket of the cylinder cover of the engine tends to be more reasonable and controllable from the aspects of the whole automobile and the engine. Therefore, in the prior art, a flow guide structure is usually adopted to precisely control the flow direction, flow rate and flow velocity of the cooling liquid in the water jacket of the cylinder body, so as to realize quantitative management. At present, most of common water jacket diversion structures are integral structures, and the water jacket diversion structures need to be arranged along with the shape of a water jacket of an air cylinder body, so that the structure is complex, the manufacturing cost is high, and the difficulty is high; and the integral flow guide structure is easy to cause difficult assembly due to the problem of insufficient manufacturing precision.
Accordingly, it is desirable to provide a flow directing insert and a cylinder block water jacket that address the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a flow guide insert and a cylinder body water jacket, and aims to solve the problems of high manufacturing cost, high difficulty and difficulty in assembly of a flow guide structure of the cylinder body water jacket in the related technology.
In order to realize the purpose, the following technical scheme is provided:
a flow guide insert is embedded in a water jacket of an air cylinder body and comprises a baffle body and a flow guide plate convexly arranged on one side of the baffle body, wherein the baffle body follows the shape of the water jacket of the air cylinder body; the guide plate divides the guide insert into an upper guide area and a lower vacant area, two ends of the guide area along the flowing direction of the cooling liquid are respectively a liquid inlet end and a liquid outlet end, and the cooling liquid enters the guide area from the liquid inlet end and flows along the guide plate until flowing out from the liquid outlet end.
Preferably, the projection of the baffle plate on the baffle body is a smooth curve.
Preferably, a projection of the baffle plate on the baffle body is a cosine curve.
Preferably, the baffle is perpendicular to the baffle body.
Preferably, a first end plate and a second end plate are respectively arranged at two ends of the vacant area of the flow guide insert along the flowing direction of the cooling liquid, and the first end plate and the second end plate protrude out of the baffle body.
Preferably, the vacant area of the diversion insert is further provided with a rib plate, and the rib plate is arranged between the diversion plate and the baffle body.
Preferably, the rib extends in the vertical direction and is perpendicular to the baffle body 1.
The cylinder body water jacket is internally embedded with at least one flow guide insert in any scheme.
Preferably, two of the diversion inserts are embedded in the cylinder water jacket, and the two diversion inserts are respectively positioned near the water inlet and the water outlet of the cylinder water jacket.
Preferably, the fitting clearance between the baffle and the side wall of the block water jacket is 1mm or less.
Compared with the prior art, the invention has the beneficial effects that:
the flow guide insert is assembled with the cylinder body water jacket in a single inserting and embedding mode, and meanwhile, the flow guide insert can be just embedded into the cylinder body water jacket by arranging the baffle body which is formed along with the shape of the cylinder body water jacket, so that compared with an integral flow guide structure in the prior art, the flow guide insert effectively reduces the manufacturing cost and the manufacturing difficulty while ensuring the function and effect; in addition, the problem of difficult installation caused by manufacturing deviation can be solved.
Drawings
FIG. 1 is a schematic structural diagram of a flow directing insert according to an embodiment of the present invention;
FIG. 2 is an elevation view of a flow directing insert according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a cylinder block water jacket in the embodiment of the invention;
FIG. 4 is a schematic view illustrating the flow of coolant after the flow directing insert is mounted to the water jacket of the cylinder block according to an embodiment of the present invention;
FIG. 5 is a schematic view of the mounting of the flow directing insert to the cylinder block in an embodiment of the present invention;
fig. 6 is a partial plan view of the flow directing insert of the present invention after it is installed in the cylinder block water jacket.
Reference numerals:
100-a flow-guiding insert; 200-cylinder block water jacket; 201-a water inlet; 202-water outlet; 203-inter-cylinder channel; 300-a cylinder block;
1-a baffle body; 2-a flow guide plate; 3-a rib plate; 4-a first end plate; 5-second end plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1 and 2, the present embodiment is to provide a flow guiding insert 100 for use in a cylinder block water jacket 200 of an engine cylinder block 300, specifically, the flow guiding insert 100 includes a baffle body 1 and a flow guiding plate 2 protruding from one side of the baffle body 1, the baffle body 1 follows the shape of the cylinder block water jacket 200, so that the flow guiding insert 100 can be inserted into the cylinder block water jacket 200; the guide plate 2 divides the guide insert 100 into an upper part and a lower part, which are respectively a guide area at the upper part and a vacant area at the lower part, two ends of the guide area along the flowing direction of the cooling liquid are respectively a liquid inlet end and a liquid outlet end, and the cooling liquid enters the guide area from the liquid inlet end and flows along the guide plate 2 until flowing out from the liquid outlet end. The diversion insert 100 disclosed in the embodiment is assembled with the cylinder block water jacket 200 in a single insertion manner, and meanwhile, the diversion insert 100 can be just inserted into the cylinder block water jacket 200 by arranging the baffle body 1 which is formed along with the shape of the cylinder block water jacket 200, so that compared with an integral diversion structure in the prior art, the function and effect are ensured, and the manufacturing cost and the manufacturing difficulty are effectively reduced; in addition, the problem of difficult installation caused by manufacturing deviation can be solved.
Referring to fig. 3 and 4 (arrows in fig. 4 indicate the flowing direction of the coolant), for the cylinder block water jacket 200, a water inlet 201 and a water outlet 202 are arranged on the body, the coolant flows through the whole cylinder block water jacket 200 after entering from the water inlet 201, absorbs the heat of the cylinder block, and flows out from the water outlet 202, so that the diversion insert 100 can be selectively inserted into any position in the cylinder block water jacket 200 along the flowing direction of the coolant, or a plurality of diversion inserts 100 are arranged, and the diversion inserts 100 are respectively inserted into different positions of the cylinder block water jacket 200 along the flowing direction of the coolant, so as to reasonably control the flowing direction, the flowing speed and the flowing quantity of the coolant. In this embodiment, two diversion inserts 100 are embedded in the cylinder block water jacket 200 and are respectively located near the water inlet 201 and the water outlet 202 of the cylinder block water jacket 200, and the flow rate, the flow direction and the flow velocity of the coolant entering the whole cylinder block water jacket 200 are reasonably controlled by the guiding action of the diversion plates 2 of the two diversion inserts 100, so that the cooling efficiency is improved. During specific implementation, if a plurality of diversion inserts 100 need to be adopted, the plurality of diversion inserts 100 can be optionally integrated into an integrated structure, and the integration premise is that the assembly between each diversion insert 100 and the cylinder water jacket 200 is not obstructed, so that the integrity of the diversion inserts 100 can be realized while the diversion function of each independent diversion insert 100 is ensured.
Optionally, the baffle 2 is perpendicular to the baffle body 1. Furthermore, smooth transition is realized between the guide plate 2 and the baffle body 1, so that stress concentration is avoided, and meanwhile, the smoothness of the cooling liquid flowing through the guide plate 2 is ensured. The two ends of the vacant area of the flow guide insert 100 in the flowing direction of the cooling liquid are respectively a first closed end and a second closed end, the second closed end of the first closed end is respectively provided with a first end plate 4 and a second end plate 5 which protrude out of the baffle body 1, and the first end plate 4 and the second end plate 5 are smoothly jointed with the guide plate 2 and the baffle body 1, so that the cooling liquid cannot enter the vacant area.
Referring to fig. 5 (the arrow direction in the drawing represents the insertion direction), the cylinder block 300 is provided with the block water jacket 200, and the flow guide insert 100 is pressed into the block water jacket 200 in the depth direction of the block water jacket 200 from the top surface of the block water jacket 200 downward at the time of assembly. Optionally, the height of the baffle body 1 is equal to or slightly less than the height of the cylinder block water jacket 200, so that the diversion insert 100 can be completely located inside the cylinder block water jacket 200. Because the bottom end of the cylinder block water jacket 200 is provided with the fillet, in order to enable the diversion insert 100 to be matched with the cylinder block water jacket 200, the bottom end of the baffle body 1 is also provided with the fillet, and the fillet of the baffle body 1 is matched with the fillet of the cylinder block water jacket 200. Further, the baffle body 1 is provided with a first side close to the cylinder hole and a second side far away from the cylinder hole, and the guide plate 2 and the rib plates 3 are arranged on the first side of the baffle body 1; while the block jacket 200 also has a first side wall close to the cylinder bore and a second side wall remote from the cylinder bore; since the baffle body 1 follows the shape of the cylinder block water jacket 200, and the cylinder block water jacket 200 is matched with the shape of the cylindrical cylinder hole, the baffle body 1 has an arc-shaped structure. Referring to FIG. 6, the radius R of the second side of the baffle body 10The radius of the second side wall of the cylinder block water jacket 200 is the same, namely, the second side of the baffle body 1 is tightly attached to the cylinder block waterA second sidewall of the sleeve 200 is provided. Meanwhile, the projection of the guide plate 2 at the bottom end of the cylinder block water jacket 200 is also of an arc-shaped structure, and the corresponding inner arc radius is set to be R1The radius of the second side wall of the block jacket 200 is set to R2Then R is1>R2An assembly gap is formed between the guide plate 2 and the second side wall of the cylinder block water jacket 200, the assembly gap can facilitate the guide plate 2 to be embedded into the cylinder block water jacket 200, and meanwhile, the flow of the coolant flowing into the vacant area from the gap as little as possible can be ensured, and the coolant is driven to be guided by the guide area; optionally, the gap is 1mm or less.
The whole diversion insert 100 can be selected and integrally formed by adopting an injection molding process, so that the whole diversion insert 100 is of an integrated structure, the manufacturing cost is simplified, the manufacturing precision is improved, and the integral strength of the diversion plate 2 is enhanced; further, the plastic diversion insert 100 is resistant to high temperature and corrosion and has a long service life.
Specifically, the projection of the guide plate 2 on the baffle body 1 is a smooth curve, and the cooling liquid entering the flow guide area smoothly flows along the guide plate 2; by designing the curved shape of the guide plate 2 into different forms, the flow direction, the flow velocity and the flow rate of the cooling liquid in the cylinder block water jacket 200 can be reasonably controlled. Further specifically, referring to fig. 2, the vertical distance between the baffle plate 2 at the inlet end and the bottom end of the baffle body 1, i.e., the initial height, is set to H0The maximum vertical distance between the guide plate 2 and the bottom end of the baffle body 1, namely the maximum height is set as H1By a difference of H0And H1The value is set, so that the total amount of the cooling liquid flowing into the flow guide area of the flow guide insert 100 can be controlled, and the aim of controlling the flow of the cooling liquid in the cylinder block water jacket 200 is fulfilled; passing multiple H's simultaneously0And H1The combination of value to and guide plate 2 is in the different settings of different position department height, can change the curve shape of guide plate 2 projection on baffle body 1, and then realize the change of coolant liquid velocity of flow and flow direction, reach best cooling effect. The diversion insert 100 of the embodiment utilizes the diversion plate 2 to divide the baffle body 1 into a diversion area and an empty area, and a designer can reasonably control diversion according to the design of the structure of the diversion plate 2The flow, the flow speed and the flow direction of cooling liquid in the area enable the cooling of the engine to be controlled in a lean mode, the cooling capacity of the engine cylinder body meets the requirement of the whole engine under the quantized management means, and meanwhile the effect of optimizing the deformation of the cylinder hole is achieved.
Optionally, referring to fig. 1 and fig. 2 again, the vacant region of the diversion insert 100 is further provided with a rib plate 3, and the rib plate 3 is disposed between the diversion plate 2 and the baffle body 1 to enhance the connection strength between the diversion plate 2 and the baffle body 1 and improve the stability of the diversion process of the diversion plate 2. Alternatively, the rib 3 and the baffle body 1 are perpendicular to each other and extend in the vertical direction. Further optionally, the rib plates 3 are smoothly connected with the baffle body 1 and the guide plate 2, so that the stress concentration phenomenon is avoided. Optionally, floor 3 is provided with a plurality ofly, and a plurality of floor 3 along the flow direction evenly distributed of coolant liquid between guide plate 2 and the bottom of baffle body 1. Of course, in some other embodiments, a cover plate is disposed between the optional first end plate 4, the second end plate 5 and the guide plate 2, the cover plate follows the shape of the cylinder block water jacket 200, and after the guide insert 100 is inserted, a closed structure is formed between the empty region and the bottom end of the cylinder block water jacket 200, so as to prevent the coolant from entering the accommodating region. Further alternatively, the rib 3 is connected between the cover plate and the baffle body 1.
Further optionally, referring to fig. 6, in this embodiment, the baffle body 1 is formed in the shape of the cylinder block water jacket 200, and two ends of the baffle body 1 along the flow direction of the coolant respectively extend to positions of cylinder head bolt lugs of the cylinder block water jacket 200, that is, the arc structures at the two ends of the baffle body 1 are matched with the shape structures of the cylinder head bolt lugs of the cylinder block water jacket 200, so that the forming degree between the baffle body 1 and the cylinder block water jacket 200 can be further improved, and the problems that the diversion insert 100 is unstable in placement in the cylinder block water jacket 200, is prone to shift, causes diversion to be not as expected, and has a poor cooling effect are solved.
In this embodiment, the curve shape of the baffle plate 2 on the baffle body 1 is closely related to the cooling effect, so in order to obtain a reasonable curve shape of the baffle plate 2 and improve the cooling effect, a CFD (Computational fluid dynamics) means can be used to perform simulation analysis on the cooling liquid flow field in the cylinder block water jacket 200 that adopts the above-mentioned flow guide insert 100, and the specific steps are as follows:
s1, firstly, extracting a CFD calculation model of the cylinder block water jacket 200 and carrying out CFD analysis on the CFD calculation model;
s2: according to the step S1, after knowing the flow field characteristics of the cylinder block water jacket 200, according to the results of CFD analysis on the coolant flow direction, flow rate, flow velocity, etc., a curve model of the guide plate 2 of the guide insert 100 is designed, and then a CFD calculation model of the guide insert 100 is extracted and introduced into the CFD calculation model of the cylinder block water jacket 200 for the next round of CFD calculation;
s3: and modifying the shape, the number and the assembly position of the diversion insert 100 according to the CFD analysis result of the new round until the final CFD calculation result meets each evaluation index.
According to the simulation analysis, the designer can be helped to obtain the optimal curve shape of the guide plate 2 and determine the assembly positions and the assembly number of the guide inserts 100. In this embodiment, the projection of the baffle plate 2 on the baffle body 1 is preferably a cosine curve, and the cosine curve can ensure that the coolant in the cylinder block water jacket 200 has a better cooling effect. In this embodiment, the CFD method is used to perform simulation analysis on the conditions of the diversion insert 100 that does not use an insert, uses a common insert, and uses a cosine-shaped diversion plate 2, and the verification results are as follows:
(1) for the case where no insert is employed: the pressure difference between the two sides of the cylinder block water jacket 200 is too small, so that effective water flow cannot be formed on the two sides of the inter-cylinder channel 203, the flow rate of cooling liquid in the inter-cylinder channel 203 is too low, heat between two cylinders cannot be taken away, and local overheating is easily caused.
(2) For the use of a common insert: the flow guide ribs of a common insert are rectangular, and the coolant at the lower part of the cylinder block water jacket 200 flows to the side face of the insert and is blocked, so that the flow resistance is obviously increased, and a flow dead zone is easily formed; after the coolant passes through the upper part of the insert, because of the inertia of water flow, a flow dead zone is easily formed in a right-angle area formed by the insert and the lower edge of the cylinder block water jacket 200, and the problem of uneven heat dissipation of the cylinder block water jacket 200 is caused by the fact that the flow dead zone is formed at the front part and the rear part of the common insert along the flow direction of the coolant.
(3) Baffle 2 in the shape of a cosine curve is used: the water flow can be smoothly guided to the upper part of the diversion insert 100 and smoothly and uniformly flows to the area of the cylinder block water jacket 200 behind the diversion insert 100 after flowing through the diversion area of the diversion insert 100, so that a flow dead zone cannot be formed near the diversion insert 100, and the flow loss is greatly reduced compared with that of a common insert. The numerical simulation calculation verifies that the guide plate 2 in the shape of the cosine curve provided by the embodiment can ensure that effective flow is formed in the channel between the cylinders, and can effectively eliminate flow dead zones at two sides of the flow guide insert 100, the flow resistance of the water jacket 200 of the cylinder body is reduced by more than 15% compared with that of a common insert, and the flow speed of liquid in the lower area of the cylinder body at the front and the rear of the flow guide insert 100 is improved by more than 20%, so that the whole heat dissipation of the cylinder body is more uniform, and the risk of local overheating is greatly reduced. Of course, when a plurality of flow guide inserts 100 are disposed in the cylinder block water jacket 200, the shape of the cosine curve of each flow guide insert 100 is not limited to be the same, and is also not limited to be the shape of the cosine curve, and the flow guide inserts can be designed specifically according to the different characteristics of the flow fields in different areas of the cylinder block water jacket 200.
Therefore, according to the CFD analysis result of the cylinder block water jacket 200, the diversion insert 100 with a reasonable shape is assembled in the cylinder block water jacket 200 to control the cooling of the cylinder block 300 so as to meet the heat management requirement of the whole machine; the direction, flow and flow speed of the cooling liquid in the gas cylinder water jacket 200 are guided and controlled, so that the cooling of the engine can be controlled in a lean way, the rapid warming-up is realized, the comprehensive cooling effect is optimal, and the fuel economy of the whole engine is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The flow guide insert is embedded in a water jacket (200) of a cylinder body, and is characterized in that the flow guide insert (100) comprises a baffle body (1) and a flow guide plate (2) convexly arranged on one side of the baffle body (1), and the baffle body (1) is formed along with the shape of the water jacket (200) of the cylinder body; the flow guide insert (100) is divided into a flow guide area at the upper part and a vacant area at the lower part by the flow guide plate (2), the two ends of the flow guide area along the flowing direction of the cooling liquid are respectively a liquid inlet end and a liquid outlet end, and the cooling liquid enters the flow guide area from the liquid inlet end and flows along the flow guide plate (2) until flowing out from the liquid outlet end.
2. The flow directing insert according to claim 1, characterized in that the projection of the flow directing plate (2) on the baffle body (1) is a smooth curve.
3. The flow directing insert according to claim 1 or 2, characterized in that the projection of the flow directing plate (2) on the baffle body (1) is a cosine curve.
4. The flow directing insert according to claim 1, characterized in that the flow directing plate (2) is perpendicular to the baffle body (1).
5. The flow directing insert according to claim 1, characterized in that the free area of the flow directing insert (100) is provided with a first end plate (4) and a second end plate (5) at both ends in the flow direction of the cooling liquid, respectively, and both the first end plate (4) and the second end plate (5) protrude out of the baffle body (1).
6. The flow directing insert according to claim 1, characterized in that the free area of the flow directing insert (100) is further provided with ribs (3), said ribs (3) being provided between the flow directing plate (2) and the baffle body (1).
7. The flow directing insert according to claim 6, characterized in that the ribs (3) extend in a vertical direction and are mutually perpendicular to the baffle body (1).
8. A cylinder block water jacket, characterized in that at least one flow directing insert (100) according to any one of claims 1-7 is provided embedded in the cylinder block water jacket (200).
9. The cylinder block water jacket according to claim 8, wherein two of the flow guide inserts (100) are embedded in the cylinder block water jacket (200), and the two flow guide inserts (100) are respectively located near a water inlet and a water outlet of the cylinder block water jacket (200).
10. The block water jacket according to claim 8, characterized in that a fitting clearance between the baffle plate (2) and a side wall of the block water jacket (200) is 1mm or less.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910696054.9A CN110748432B (en) | 2019-07-30 | 2019-07-30 | Flow guide insert and cylinder block water jacket |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910696054.9A CN110748432B (en) | 2019-07-30 | 2019-07-30 | Flow guide insert and cylinder block water jacket |
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| CN110748432A true CN110748432A (en) | 2020-02-04 |
| CN110748432B CN110748432B (en) | 2021-01-15 |
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| CN114542317A (en) * | 2022-03-17 | 2022-05-27 | 奇瑞汽车股份有限公司 | Cylinder block and engine |
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| CN110748432B (en) | 2021-01-15 |
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