Engine water jacket gas overflow structure, engine water jacket and vehicle
By setting a part of the overflow pipe in the engine water jacket into the cylinder head, the external overflow pipe has solved the problems of large space occupied by, complex management, high cost and leakage risk, and space savings, cost reduction and leakage risk reduction are achieved.
Patent Information
- Application Number
- CN202420569826.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The external overflow pipeline in existing engines occupies a large space, is complex in management, is costly, and has a risk of leakage.
An engine water jacket overflow structure is designed, wherein the front end overflow pipe and the drain overflow pipe are arranged at least partially in the cylinder head, the front end overflow pipe is in communication with the main body water jacket and the radiating water bottle, the drain overflow pipe is connected with the drain overflow pipe and the drain overflow sleeve and the front end overflow The gas pipe is connected to achieve internal gas emissions.
By integrating the overflow structure into the cylinder head, the peripheral space of the engine is saved, the external overflow pipeline is reduced, weight reduction, cost reduction and leakage risk is reduced.
Smart Images
Figure CN222526394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, in particular to an engine water jacket overflow structure, an engine water jacket and a vehicle. Background Art
[0002] During the operation of the engine, there is gas dissolved in the coolant flowing into the water jacket of the engine cylinder head. Bubbles will be generated as the coolant gradually heats up. These bubbles will often accumulate on the top of the water jacket of the engine cylinder head, which may cause cavitation or cracks in the engine cylinder head. In severe cases, it may even cause the engine to be damaged and unusable. The cylinder head includes a main water jacket and a collection and drainage jacket connected in parallel. Existing engines usually connect overflow pipes to the main water jacket and the collection and drainage jacket of the engine respectively to discharge the gas generated in the coolant of the engine cylinder head. However, most of the overflow pipes are arranged outside the engine. The external overflow pipe occupies a large layout space, the process and parts management are relatively complicated, the cost is high, and there is a risk of leakage. Utility Model Content
[0003] The utility model aims to at least solve the technical problems existing in the prior art that the external overflow pipeline occupies a large layout space, the process and parts management are relatively complicated, the cost is high, and there is a risk of leakage.
[0004] To this end, one object of the utility model is to provide an engine water jacket overflow structure, the engine water jacket overflow structure comprising:
[0005] A front overflow pipe is at least partially disposed in the cylinder head, one end of the front overflow pipe is communicated with the main body water jacket in the cylinder head, and the other end of the front overflow pipe is communicated with the heat dissipation kettle outside the cylinder head;
[0006] A collecting and draining overflow pipe is arranged in the cylinder head, one end of the collecting and draining overflow pipe is communicated with the front end overflow pipe, and the other end of the collecting and draining overflow pipe is communicated with a collecting and draining water sleeve in the cylinder head.
[0007] In some embodiments, the collecting and draining air overflow pipe includes a first collecting and draining air overflow pipe, a second collecting and draining air overflow pipe and a collecting and draining connecting pipe, one end of the first collecting and draining air overflow pipe is connected to the collecting and draining water sleeve, one end of the second collecting and draining air overflow pipe is connected to the front end overflow pipe, and the other end of the first collecting and draining air overflow pipe is connected to the other end of the second collecting and draining air overflow pipe through the collecting and draining connecting pipe.
[0008] In some embodiments, the first overflow pipe and the second overflow pipe are both arranged transversely in the cylinder head, and the front end overflow pipe is arranged longitudinally in the cylinder head.
[0009] In some embodiments, the first collecting and draining overflow pipe and the second collecting and draining overflow pipe are arranged alternately up and down.
[0010] In some embodiments, the first port at the other end of the first collecting and draining overflow pipe extends to the side wall of the cylinder head, and the first plugging cover blocks the first port from outside the cylinder head;
[0011] A second port at the other end of the second collecting and draining overflow pipe extends to the side wall of the cylinder head, and a second plugging cover blocks the second port from outside the cylinder head;
[0012] A first overflow hole communicating with one end of the collecting and draining connecting pipe is provided on the pipe wall at the other end of the first collecting and draining overflow pipe, and a second overflow hole communicating with the other end of the collecting and draining connecting pipe is provided on the pipe wall at the other end of the second collecting and draining overflow pipe.
[0013] In some embodiments, the second collecting and draining overflow pipe is arranged to be inclined upward toward the front end overflow pipe.
[0014] In some embodiments, the front end overflow pipe includes a longitudinal pipe section located inside the cylinder head and a bent pipe section extending outside the cylinder head, and the bottom end of the longitudinal pipe section is connected to the top of the main body water jacket.
[0015] In some embodiments, the longitudinal tube segment and the bent tube segment are split structures.
[0016] Another object of the utility model is to provide an engine water jacket, comprising the above-mentioned engine water jacket overflow structure.
[0017] Another object of the present utility model is to provide a vehicle, comprising the above-mentioned engine water jacket.
[0018] The engine water jacket overflow structure, engine water jacket and vehicle provided by the embodiment of the utility model have the following beneficial effects:
[0019] The main body water jacket and the collecting and draining overflow pipe are respectively connected with a front end overflow pipe and a collecting and draining overflow pipe. The front end overflow pipe and the collecting and draining overflow pipe are connected with each other. The gas in the water jacket is transported to the heat dissipation kettle through the front end overflow pipe. At least a part of the front end overflow pipe and the collecting and draining overflow pipe are arranged in the cylinder head, so that the overflow structure is integrated into the cylinder head, which saves the peripheral space of the engine and reduces the external overflow pipeline, thereby achieving the purpose of reducing weight and reducing costs, saving engine assembly time and reducing the risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0021] Figure 1 It is a schematic diagram of the use state of the engine water jacket overflow structure in the embodiment of the utility model;
[0022] Figure 2 It is a structural schematic diagram of the engine water jacket overflow structure according to an embodiment of the utility model;
[0023] Figure 3 is a schematic diagram of a first exhaust gas collecting pipe according to an embodiment of the utility model;
[0024] Figure 4 It is a schematic diagram of the second exhaust gas collecting pipe according to an embodiment of the utility model.
[0025] Reference numerals:
[0026] 1. Front end overflow pipe; 11. Longitudinal pipe section; 12. Bent pipe section; 2. Collecting and draining overflow pipe; 21. First collecting and draining overflow pipe; 22. Second collecting and draining overflow pipe; 3. First plugging cover; 4. Second plugging cover; 5. First overflow hole; 6. Second overflow hole; 7. First port; 8. Second port; 9. Third port; 100. Cylinder head; 101. Cylinder head body; 102. Cylinder head cover; 200. Main body water jacket; 300. Collecting and draining water jacket. DETAILED DESCRIPTION
[0027] Various aspects and features of the present invention are described herein with reference to the accompanying drawings.
[0028] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of the embodiments. Other modifications within the scope and spirit of the present utility model will occur to those skilled in the art.
[0029] The accompanying drawings, which are included in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, are used to explain the principles of the present invention.
[0030] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.
[0031] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present invention that have the features described in the claims and are therefore within the scope of protection defined thereby.
[0032] The above and other aspects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
[0033] Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present invention, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present invention. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of ways with substantially any suitable detailed structure.
[0034] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", all of which may refer to one or more of the same or different embodiments according to the present invention.
[0035] The first embodiment of the utility model provides an engine water jacket overflow structure, such as Figure 1 and Figure 2 As shown, the engine water jacket overflow structure includes:
[0036] The front overflow pipe 1 is at least partially disposed in the cylinder head 100, one end of the front overflow pipe 1 is connected to the main body water jacket 200 in the cylinder head 100, and the other end of the front overflow pipe 1 is connected to the heat dissipation kettle outside the cylinder head 100;
[0037] The collecting and draining overflow pipe 2 is arranged in the cylinder head 100 , one end of the collecting and draining overflow pipe 2 is connected to the front end overflow pipe 1 , and the other end of the collecting and draining overflow pipe 2 is connected to the collecting and draining water sleeve 300 in the cylinder head 100 .
[0038] In order to ensure that the engine is at a suitable temperature, cooling pipes are provided in the cylinder head 100 and the cylinder body of the engine to cool the engine through circulating water flow. A small amount of gas in the water flow in the cooling pipe needs to be discharged through the overflow structure. Among them, a main water jacket 200 and a collection and drainage jacket 300 are provided in the cylinder head 100. The main water jacket 200 is located near the combustion chamber of the engine, and the combustion chamber can be cooled by the refrigerant in the main water jacket 200. The collection and drainage jacket 300 is arranged near the exhaust pipe of the cylinder head 100, and the gas in the exhaust pipe can be cooled by the refrigerant in the collection and drainage jacket 300.
[0039] The main water jacket 200 and the collecting and draining water jacket 300 are respectively provided with overflow channels, specifically the front overflow pipe 1 and the collecting and draining overflow pipe 2. The gas in the collecting and draining water jacket 300 enters the front overflow pipe 1 through the collecting and draining overflow pipe 2, and is gathered together with the gas in the main water jacket 200 entering the front overflow pipe 1, and then the gas in the engine main water jacket 200 and the collecting and draining water jacket 300 is discharged through the heat dissipation kettle connected to the front overflow pipe 1. The main water jacket 200 and the collecting and draining water jacket 300 have separate overflow channels respectively, and can be gathered together and then discharged outside the engine, so that the efficiency of collecting gas is higher. At least part of the front overflow pipe 1 and the entirety of the collecting and draining overflow pipe 2 are arranged inside the cylinder head 100, which saves the peripheral space of the engine and reduces the external overflow pipeline, so as to achieve the purpose of weight reduction and cost reduction, and facilitate assembly and transportation.
[0040] In some embodiments, the collecting and draining gas overflow pipe 2 includes a first collecting and draining gas overflow pipe 21, a second collecting and draining gas overflow pipe 22 and a collecting and draining connecting pipe. One end of the first collecting and draining gas overflow pipe 21 is connected to the collecting and draining water jacket 300, one end of the second collecting and draining gas overflow pipe 22 is connected to the front end overflow pipe 1, and the other end of the first collecting and draining gas overflow pipe 21 is connected to the other end of the second collecting and draining gas overflow pipe 22 through the collecting and draining connecting pipe. One end of the first collecting and draining gas overflow pipe 21 is directly connected to the collecting and draining water jacket 300 to collect the gas in the collecting and draining water jacket 300. The first collecting and draining water jacket 300 transports the gas to the second collecting and draining gas overflow pipe 22 through the first collecting and draining gas overflow pipe 21 and the collecting and draining connecting pipe, providing a transport channel for gas transport and ensuring that the gas in the collecting and draining water jacket 300 is discharged smoothly. The collecting and draining air overflow pipe 2 is configured as a structure in which a first collecting and draining air overflow pipe 21, a second collecting and draining air overflow pipe 22 and a collecting and draining connecting pipe are connected in sequence. Different collecting and draining air overflow pipes and collecting and draining connecting pipes can be used to adaptively arrange the entire collecting and draining air overflow pipe structure according to the space in the cylinder head 100, thereby achieving avoidance of other components in the cylinder head 100 and achieving high space utilization.
[0041] One end of the first collecting and draining gas overflow pipe 21 is in communication with the collecting and draining water sleeve 300, and the end has a third port 9, which provides an installation point for the first collecting and draining gas overflow pipe 21 and the collecting and draining water sleeve 300; the other end of the first collecting and draining gas overflow pipe 21 is an end connected to the second collecting and draining gas overflow pipe 22, and the other end of the first collecting and draining gas overflow pipe 21 has a first port 7, which extends to the side wall of the cylinder head 100, and the first plugging cover 3 blocks the first port 7 from the outside of the cylinder head 100. Similarly, one end of the second collecting and draining gas overflow pipe 22 is in communication with the front end overflow pipe 1, and the other end of the second collecting and draining gas overflow pipe 22 is an end connected to the first collecting and draining gas overflow pipe 21, and the other end of the second collecting and draining gas overflow pipe 22 has a second port 8, which extends to the side wall of the cylinder head 100, and the second plugging cover 4 blocks the second port 8 from the outside of the cylinder head 100. The first plugging cover 3 and the second plugging cover 4 respectively serve to fix the first collecting and exhausting overflow pipe 21 and the second collecting and exhausting overflow pipe 22, which can improve the stability of the overflow structure after installation. There is no need to set up a special collecting and exhausting overflow pipe 21 fixing structure in the cylinder head, which facilitates the installation of the first collecting and exhausting overflow pipe 21 and the second collecting and exhausting overflow pipe 22, reduces the occupied space in the cylinder head, and reduces the installation cost.
[0042] like Figure 3 and Figure 4 As shown, a first overflow hole 5 connected to one end of the collecting and draining connecting pipe is provided on the pipe wall at the other end of the first collecting and draining overflow pipe 21, and a second overflow hole 6 connected to the other end of the collecting and draining connecting pipe is provided on the pipe wall at the other end of the second collecting and draining overflow pipe 22. The first overflow hole 5 and the second overflow hole 6 are the installation positions of the collecting and draining connecting pipe, which facilitates assembly through the collecting and draining connecting pipe and improves assembly efficiency.
[0043] In some other embodiments, the collecting, exhausting and overflowing pipe 2 may also be an integrated structure. This solution has fewer parts and has good connection tightness, but it is necessary to set different collecting, exhausting and overflowing pipes 2 according to the arrangement in the cylinder head, which is costly, and the reliability of the bending part of the collecting, exhausting and overflowing pipe 2 is poor, and an additional fixing structure may be required to fix the collecting, exhausting and overflowing pipe 2. This solution saves the use of parts and has good connection tightness.
[0044] like Figure 1 and Figure 2 As shown, the first exhaust gas collecting pipe 21 and the second exhaust gas collecting pipe 22 are both arranged transversely in the cylinder head 100, and the front exhaust gas collecting pipe 1 is arranged longitudinally in the cylinder head 100. The transversely arranged first exhaust gas collecting pipe 21 and the second exhaust gas collecting pipe 22 and the longitudinally arranged front exhaust gas collecting pipe 1 further optimize the spatial layout inside the cylinder head 100, avoid other components in the cylinder head 100, ensure gas delivery and save space.
[0045] The first collecting and draining overflow pipe 21 and the second collecting and draining overflow pipe 22 are staggered up and down (for example, perpendicular to each other or at a certain angle). The first collecting and draining overflow pipe 21 and the second collecting and draining overflow pipe 22 are staggered up and down, and can optimize the internal space structure of the cylinder head 100 while realizing gas transportation, avoid other components in the cylinder head 100, and make rational use of space. For example, in this embodiment, the first collecting and draining overflow pipe 21 and the second collecting and draining overflow pipe 22 are perpendicular to each other up and down, and the first overflow hole 5 provided on the first collecting and draining overflow pipe 21 and the second overflow hole 6 provided on the second collecting and draining overflow pipe 22 can be arranged relatively up and down, and the first collecting and draining overflow pipe 21 and the second collecting and draining overflow pipe 22 are reliably connected by using a shorter longitudinally arranged collecting and draining connecting pipe, and the layout is reasonable, and less material is used, and the cost is low. In addition, the first exhaust pipe 21 and the second exhaust pipe 22 are staggered up and down, so that the first port of the first exhaust pipe 21 and the second port of the second exhaust pipe 22 can directly extend to the side wall of the cylinder head 100 respectively, and are sealed and fixed by a plugging cover to ensure the stability of the two after installation and avoid conflict when the two extend at the same height, which is convenient and quick to install.
[0046] Optionally, the second collecting and draining overflow pipe 22 is arranged obliquely upward toward the front overflow pipe 1. The second collecting and draining overflow pipe 22 arranged obliquely upward is conducive to gas flow, so that the gas in the collecting and draining water jacket 300 can quickly flow to the front overflow pipe 1 through the second collecting and draining overflow pipe 22, and the gas converges in the front overflow pipe 1.
[0047] The front-end overflow pipe 1 includes a longitudinal pipe section 11 located inside the cylinder head 100 and a bent pipe section 12 extending outside the cylinder head 100. The longitudinal pipe section 11 inside the cylinder head 100 mainly serves to collect and transport gas, and the bent pipe section 12 outside the cylinder serves to transport gas and provide an installation position for the external pipeline. The portion of the front-end overflow pipe 1 extending outside the cylinder head 100 is set as a bent structure to optimize the spatial layout outside the engine. Figure 1 and Figure 2As shown, the cylinder head 100 includes a cylinder head body 101 and a cylinder head cover 102 that are butt-jointed with each other. The longitudinal pipe section 11 and the bent pipe section 12 may be a split structure. The longitudinal pipe section 11 is located in the cylinder head body 101, and the top of the longitudinal pipe section 11 is flush with or higher than the top of the cylinder head body 101. The longitudinal pipe section 11 is arranged in the cylinder head body 101, which reduces the space occupied by the external overflow structure. The top of the longitudinal pipe section 11 is flush with or higher than the top of the cylinder head body 101, which facilitates the assembly of the longitudinal pipe section 11 and the bent pipe section 12, as well as the assembly of the cylinder head body 101 and the cylinder head cover 102, thereby improving the installation efficiency. The cylinder head cover 102 is provided with a mounting hole for extending the bent pipe section 12. During assembly, first install the longitudinal pipe section 11 in the cylinder head body 101, then connect the bent pipe section 12 to the top of the longitudinal pipe section 11 through the flange connector, and then install the cylinder head cover 102 so that the bent pipe section 12 extends out of the cylinder head 100 from the mounting hole, thereby completing the assembly of the entire cylinder head 100 structure.
[0048] The bottom end of the longitudinal pipe section 11 of the main water jacket 200 is connected to the top of the main water jacket 200. During the operation of the engine, the gas generated in the main water jacket 200 flows from the highest point of the main water jacket 200 to the front overflow pipe 1, and finally connected to the external pipe by the front overflow pipe 1 and then to the heat dissipation kettle. It is easier for air to accumulate at the highest point of the main water jacket 200, so that the accumulated air can be discharged through the front overflow pipe 1. There is no connecting pipe between the longitudinal pipe section 11 of the main water jacket 200 and the main water jacket 200, but they are connected to each other in space. When the highest point of the main water jacket 200 changes, the bottom end of the longitudinal pipe section 11 of the main water jacket 200 can still be kept connected to the highest point of the main water jacket 200, so as to maintain a good exhaust function.
[0049] The second embodiment of the utility model provides an engine water jacket, including the above-mentioned engine water jacket overflow structure. The engine can be a V-type engine, an inline (L) engine, a W-type engine, etc. The engine water jacket overflow structure is set according to the engine water jacket structure corresponding to the engine model. For example, the corresponding front end overflow pipe 1 and the collecting and draining overflow pipe 2 are arranged according to the specific positions of the main body water jacket 200 and the collecting and draining jacket 300.
[0050] A third embodiment of the present utility model provides a vehicle, comprising the above-mentioned engine water jacket.
[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0052] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.
[0053] In the description of the present invention, "plurality" means two or more.
[0054] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.
[0055] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
[0056] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An engine water jacket overflow structure, characterized in that: include: A front overflow pipe is at least partially disposed in the cylinder head, one end of the front overflow pipe is communicated with the main body water jacket in the cylinder head, and the other end of the front overflow pipe is communicated with the heat dissipation kettle outside the cylinder head; A collecting and draining overflow pipe is arranged in the cylinder head, one end of the collecting and draining overflow pipe is communicated with the front end overflow pipe, and the other end of the collecting and draining overflow pipe is communicated with a collecting and draining water sleeve in the cylinder head.
2. The engine water jacket overflow structure according to claim 1, characterized in that: The collecting and draining air overflow pipe includes a first collecting and draining air overflow pipe, a second collecting and draining air overflow pipe and a collecting and draining connecting pipe. One end of the first collecting and draining air overflow pipe is connected to the collecting and draining water sleeve, one end of the second collecting and draining air overflow pipe is connected to the front end overflow pipe, and the other end of the first collecting and draining air overflow pipe is connected to the other end of the second collecting and draining air overflow pipe through the collecting and draining connecting pipe.
3. The engine water jacket overflow structure according to claim 2, characterized in that: The first collecting and draining overflow pipe and the second collecting and draining overflow pipe are both arranged transversely in the cylinder head, and the front end overflow pipe is arranged longitudinally in the cylinder head.
4. The engine water jacket overflow structure according to claim 3, characterized in that: The first collecting and draining overflow pipe and the second collecting and draining overflow pipe are arranged alternately up and down.
5. The engine water jacket overflow structure according to claim 3, characterized in that: The first port at the other end of the first collecting and draining overflow pipe extends to the side wall of the cylinder head, and the first blocking cover blocks the first port from outside the cylinder head; A second port at the other end of the second collecting and draining overflow pipe extends to the side wall of the cylinder head, and a second plugging cover blocks the second port from outside the cylinder head; A first overflow hole communicating with one end of the collecting and draining connecting pipe is provided on the pipe wall at the other end of the first collecting and draining overflow pipe, and a second overflow hole communicating with the other end of the collecting and draining connecting pipe is provided on the pipe wall at the other end of the second collecting and draining overflow pipe.
6. The engine water jacket overflow structure according to claim 3, characterized in that: The second collecting and draining overflow pipe is arranged obliquely upward toward the front overflow pipe.
7. The engine water jacket overflow structure according to claim 1, characterized in that: The front end overflow pipe comprises a longitudinal pipe section located in the cylinder head and a bent pipe section extending out of the cylinder head, and the bottom end of the longitudinal pipe section is communicated with the top of the main body water jacket.
8. The engine water jacket overflow structure according to claim 7, characterized in that: The longitudinal pipe section and the bent pipe section are split structures.
9. An engine water jacket, characterized in that: An engine water jacket overflow structure comprising any one of claims 1-8.
10. A vehicle, characterized in that: An engine water jacket comprising the engine water jacket as claimed in claim 9.