Internal combustion engine water pump and internal combustion engine

Abstract

The invention provides an internal combustion engine water pump and an internal combustion engine. The internal combustion engine water pump comprises a driving assembly and a vortex assembly. The vortex assembly is provided with a shell part and a turbine part; the shell part is provided with a sealed end and an open end, the driving assembly is arranged at the sealed end, and the open end communicates with the cylinder body; when the open end is communicated with the cylinder body, a sealed accommodating cavity capable of mounting the turbine part is formed in the shell part in a surrounding manner; the driving assembly is connected with the turbine part through a magnetic adsorption structure, and when the driving assembly rotates, the turbine part can be driven to rotate along with the driving assembly. Due to the fact that the sealed containing cavity is formed in the shell part in the surrounding mode, the turbine part can be completely in a sealed state in the working process, the problem of leakage of cooling liquid is avoided, and compared with the prior art, the problem of leakage of the cooling liquid is fundamentally solved.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more particularly to internal combustion engine water pumps and internal combustion engines. Background Technology

[0002] Currently, most internal combustion engine water pumps use mechanical seals for their sealing structure. Figures 1-4 The diagram shows the structure of a current water pump, combined with Figures 1-4 As shown, the rotation of turbine 1' is driven by shaft 2'. Specifically, shaft 2' passes through the volute and connects to the turbine; a water seal structure 3' is also fitted on the shaft to prevent cooling water from leaking from inside the volute 4' along the shaft. However, due to its water seal structure, water leakage is inevitable. Therefore, drain holes and evaporation holes need to be added to the internal combustion engine water pump to drain a small amount of water. However, when the leaked water is not drained in time, it will soak in the bearing, causing the bearing to fail, which in turn causes the internal combustion engine water pump assembly to fail.

[0003] In addition, for the current structure, bearing clearance movement is also one of the reasons for water seal leakage, which can also lead to the failure of the internal combustion engine water pump assembly.

[0004] When the water pump assembly of an internal combustion engine fails, it is difficult to determine whether the failure is caused by water leakage leading to bearing failure or water leakage caused by bearing failure.

[0005] Therefore, there is an urgent need for internal combustion engine water pumps and internal combustion engines to solve the technical problems existing in the current technology to a certain extent. Summary of the Invention

[0006] The purpose of this application is to provide an internal combustion engine water pump and an internal combustion engine, which to a certain extent solves the problem of leakage caused by the structure in the prior art, which leads to the failure of the water pump.

[0007] This application provides an internal combustion engine water pump connected to the engine block; the internal combustion engine water pump includes a drive assembly and a scroll assembly; The vortex assembly has a housing portion and a turbine portion; the housing portion has a sealed end and an open end, the drive assembly is disposed at the sealed end, and the open end communicates with the cylinder body; when the open end communicates with the cylinder body, the housing portion surrounds a sealed receiving cavity capable of housing the turbine portion. The drive assembly and the turbine are connected by a magnetic adsorption structure. When the drive assembly rotates, it can drive the turbine to rotate along with the drive assembly.

[0008] In the above technical solution, the magnetic adsorption structure further includes a magnet and a magnetic ring; One of the magnet and the magnetic ring is disposed on the side of the drive assembly facing the turbine, and the other is disposed on the side of the turbine facing the drive assembly. The drive assembly and the turbine are connected together by the attraction of the magnet and the magnetic ring, so that when the drive assembly rotates, the turbine can rotate with the drive assembly.

[0009] In the above technical solution, the housing portion further includes a main body and a neck communicating with the main body; The neck has a tapering structure from the direction close to the body to the direction away from the body; The sealing end is formed at the end of the neck opposite to the body; the opening end is formed at the end of the body opposite to the neck.

[0010] In the above technical solution, the driving assembly further includes a driving part and a transmission part connected to the driving part; The drive unit is disposed above the neck via a bearing unit, the transmission unit is sleeved on the neck, and the magnet or the magnetic ring is disposed on the side of the transmission unit facing the turbine unit; When the drive unit rotates, it can drive the transmission unit to rotate along with the drive unit, and when the transmission unit rotates, it can drive the turbine unit to rotate.

[0011] In the above technical solution, the bearing part further includes a shaft and a bearing; a mounting hole is provided at one end of the neck away from the main body; the fixed end of the shaft is disposed in the mounting hole and the extended end of the shaft extends in a direction away from the neck, and the driving part is sleeved on the extended end through the bearing.

[0012] In the above technical solution, the driving part is a pulley, and the transmission part is a transmission wheel; The pulley is sleeved on the extended end of the shaft via the bearing; the drive wheel is sleeved on the neck and connected to the pulley, so that the pulley can drive the drive wheel to rotate; The magnet or magnetic ring is provided on the side of the transmission wheel facing the turbine, so that when the transmission part rotates, it can drive the turbine part to rotate.

[0013] In the above technical solution, the turbine unit further includes a fixed housing and an impeller disposed on the fixed housing; A limiting hole is provided on the side of the neck facing the turbine, and a convex shaft is provided near the neck and at the position corresponding to the limiting hole of the fixing shell; The fixed shell is provided with the magnetic ring or the magnet on the side facing the transmission wheel, so that when the transmission wheel rotates, the magnetic ring and the magnet attract each other, allowing the convex shaft to rotate within the limiting hole.

[0014] In the above technical solution, the turbine part is further provided with wear-resistant components; The wear-resistant component is disposed on the convex shaft to increase the wear resistance between the convex shaft and the limiting hole.

[0015] In the above technical solution, the wear-resistant component further includes a bearing bush and a thrust washer; The bearing bush is disposed on the circumferential sidewall of the cam shaft, and the thrust washer is disposed on the top of the cam shaft near the neck.

[0016] This application also provides an internal combustion engine, including the aforementioned internal combustion engine water pump.

[0017] Compared with the prior art, this application has the following beneficial effects: This application provides an internal combustion engine water pump connected to the engine block; the internal combustion engine water pump includes a drive assembly and a scroll assembly; The vortex assembly has a housing portion and a turbine portion; the housing portion has a sealed end and an open end, the drive assembly is disposed at the sealed end, and the open end communicates with the cylinder body; when the open end communicates with the cylinder body, the housing portion surrounds a sealed receiving cavity capable of housing the turbine portion. The drive assembly and the turbine are connected by a magnetic adsorption structure. When the drive assembly rotates, it can drive the turbine to rotate along with the drive assembly.

[0018] In summary, because the housing is surrounded by a sealed cavity, the turbine is kept completely sealed during operation, thus preventing coolant leakage. Compared with existing technologies, this fundamentally solves the problem of coolant leakage.

[0019] This application also provides an internal combustion engine, including the aforementioned internal combustion engine water pump. The beneficial effects of the steel frame structure are therefore not detailed here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a water pump for an internal combustion engine in the prior art. Figure 2 This is a schematic diagram of a hidden pulley structure in an internal combustion engine water pump in the prior art. Figure 3 This is a schematic diagram of a hidden pulley and volute in a water pump of an internal combustion engine in the prior art. Figure 4 A cross-sectional view of a water pump for an internal combustion engine in the prior art; Figure 5 This is a structural schematic diagram of the internal combustion engine water pump provided in this application; Figure 6 This application provides a schematic diagram of the structure of an internal combustion engine water pump with a hidden volute from a first-view perspective. Figure 7 This application provides a structural schematic diagram of an internal combustion engine water pump with a hidden volute casing, shown from a second-view perspective. Figure 8 The cross-sectional view of the internal combustion engine water pump provided in this application; Figure 9 This application provides a schematic diagram of the volute casing in an internal combustion engine water pump from a first-view perspective. Figure 10 The structural schematic diagram of the volute in the internal combustion engine water pump provided in this application is shown from a second perspective. Figure 11 This application provides a schematic diagram of the hidden transmission wheel and volute in an internal combustion engine water pump. Figure 12 This application provides a schematic diagram of the structure of the pulley and drive wheel in the internal combustion engine water pump.

[0022] Reference numerals: 1'-Turbine; 2'-Shaft; 3'-Water seal structure; 4'-Vortex casing; 1-Drive assembly; 101-Drive section; 102-Transmission section; 103-Mounting groove; 104-Shaft; 105-Bearing; 106-Fixed end; 107-Extension end; 108-Pulley; 109-Transmission wheel; 2-Vortex assembly; 201-Housing section; 202-Turbine section; 203-Sealed end; 204-Open end; 205-Sealed receiving cavity; 206-Main body; 207-Neck; 208-Mounting hole; 210-Fixed shell; 211-Impeller; 212-Tube; 213-Limiting hole; 214-Protruding shaft; 3-Magnetic adsorption structure; 301-Magnet; 302-Magnetic ring; 4-Wear-resistant components; 401-Bearing bush; 402-Thrust washer. Detailed Implementation

[0023] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order presented herein; rather, changes that will be apparent upon understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity. The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application. Throughout this specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between. As used herein, the term "and / or" includes any one of the relevant items listed and any combination of any two or more of them. Although terms such as "first," "second," and "third" may be used herein to describe individual components, assemblies, regions, layers, or portions, these components, assemblies, regions, layers, or portions are not limited by these terms. More precisely, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as such in the examples may also be referred to as the second component, assembly, region, layer, or part. For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element.Therefore, the term "above" includes both "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., oscillating 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly. The terminology used herein is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising," "including," and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the figures but include changes in shape that occur during manufacturing. The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible as will be apparent upon understanding the disclosure of this application.

[0024] Example 1 Currently, internal combustion engine water pumps all use a shaft 104 to drive the turbine rotation. Specifically, the shaft 104 passes through the volute and connects to the turbine. To prevent coolant backflow, a water seal structure is installed on the shaft 104. However, the water seal structure is very unstable and easily affected by impurities, leading to coolant leakage. Furthermore, if the spring in the water seal structure fails, it will also cause the water pump to fail. Based on the above technical problems, this application provides an internal combustion engine water pump, which is described below in conjunction with... Figures 5-12 The water pump for internal combustion engines is described in detail.

[0025] The internal combustion engine water pump includes a drive assembly 1 and a turbine assembly 2. For the turbine assembly, [the following is a description of the turbine assembly and its components]. Figures 8-10 As shown, the vortex assembly 2 has a housing portion 201 and a turbine portion 202; the housing portion 201 has a sealed end 203 and an open end 204, the drive assembly 1 is disposed at the sealed end 203, and the open end 204 communicates with the cylinder block; when the open end 204 communicates with the cylinder block, the housing portion 201 surrounds a sealed receiving cavity 205 capable of housing the turbine portion 202; that is, the turbine portion 202 of this application is completely located within the housing portion 201 with the sealed receiving cavity 205, so when the turbine portion 202 is working, there is no problem of coolant leakage. In other words, the turbine assembly composed of the housing portion 201 and the turbine portion 202 of this application fundamentally solves the problem of coolant leakage. Regarding the drive assembly 1, combined with... Figures 5-8As shown, the drive assembly 1 and the turbine section 202 are connected by a magnetic adsorption structure 3. When the drive assembly 1 rotates, it can drive the turbine section 202 to rotate along with the drive assembly 1. When the turbine section 202 (which contains pre-stored coolant) rotates, it drives the coolant to rotate at high speed, giving the coolant power. The coolant is thrown to the edge of the housing section 201 by centrifugal force and flows into the volute channel (formed inside the turbine section 202) in a certain direction and at a certain speed. The coolant gradually decelerates in the variable cross-section volute channel, converting some of its kinetic energy into pressure energy. After the pressure increases, it enters the circulating water pipe 212 (the circulating water pipe 212 is the one described in this application). Figure 9 The pipe 212 shown is connected to components such as the cylinder head of the cylinder block and is used for cylinder block cooling. As the coolant in the turbine section 202 is centrifugally thrown out, a partial vacuum is formed in the water inlet (the water inlet is the channel connecting the cylinder block and the open end 204), causing coolant to be continuously drawn into the turbine section 202.

[0026] In summary, since the housing 201 is surrounded by a sealed cavity 205, the turbine 202 is completely sealed during operation, thus preventing coolant leakage. Compared with existing technologies, this fundamentally solves the problem of coolant leakage.

[0027] In this implementation, combined with Figure 5 and Figure 8 As shown, the housing portion 201 includes a main body 206 and a neck 207 communicating with the main body 206. The neck 207 has a tapering structure from near the main body 206 to away from the main body 206. A sealing end 203 is formed at the end of the neck 207 away from the main body 206; an open end 204 is formed at the end of the main body 206 away from the neck 207. Furthermore, the neck 207, the main body 206, and the cylinder body together enclose a sealed receiving cavity 205.

[0028] In this implementation, combined with Figure 8 As shown, the turbine unit 202 includes a fixed housing 210 and impellers 211 disposed on the fixed housing 210. The fixed housing 210 may be a disc structure. The impellers 211 are arc-shaped and multiple impellers 211 are arranged at equal intervals around the disc-shaped fixed housing 210.

[0029] Specifically, a limiting hole 213 is provided on the side of the neck 207 facing the turbine section 202, and a convex shaft 214 is provided on the fixing shell 210 near the neck 207 and corresponding to the limiting hole 213. Optionally, the convex shaft 214 extends from the fixing shell 210 at the position corresponding to the limiting hole 213, that is, the convex shaft 214 and the fixing shell 210 are integrally formed, so that the fixing shell 210 and the neck 207 are connected by the convex shaft 214.

[0030] In this embodiment, the magnetic adsorption structure 3 includes a magnet 301 and a magnetic ring 302; one of the magnet 301 and the magnetic ring 302 is disposed on the side of the drive assembly 1 facing the turbine part 202, and the other is disposed on the side of the turbine part 202 facing the drive assembly 1; the drive assembly 1 and the turbine part 202 are connected together by the adsorption effect of the magnet 301 and the magnetic ring 302; so that when the drive assembly 1 rotates, the turbine part 202 can rotate with the drive assembly 1.

[0031] In this implementation, combined with Figure 5 , Figure 6 , and see Figure 8 As shown, the drive assembly 1 includes a drive unit 101 and a transmission unit 102 connected to the drive. The drive unit 101 is positioned above the neck 207 via a bearing 105, and the transmission unit 102 is fitted onto the neck 207. Specifically, the bearing 105 includes a shaft 104 and a bearing 105; a mounting hole 208 is provided at the end of the neck 207 opposite to the main body 206; the fixed end 106 of the shaft 104 is located in the mounting hole 208, and the extended end 107 of the shaft 104 extends in a direction opposite to the neck 207; the drive unit 101 is fitted onto the extended end 107 via the bearing 105. That is, when the drive unit 101 rotates, the shaft 104 remains stationary due to the bearing 105, and the shaft 104 provides support and fixation for the drive unit 101.

[0032] Furthermore, the drive unit 101 is a pulley 108, and the transmission unit 102 is a transmission wheel 109. That is, the pulley 108 is sleeved on the extension end 107 of the shaft 104 via a bearing 105; the transmission wheel 109 is sleeved on the neck 207 and connected to the pulley 108, so that the pulley 108 can drive the transmission wheel 109 to rotate.

[0033] Furthermore, considering that the neck 207 has a tapered structure from near the main body 206 to away from the main body 206, in order for the transmission wheel 109 to rotate around the neck 207, the inner wall of the transmission wheel 109 is also set to a tapered structure that is adapted to the neck 207.

[0034] In this implementation, combined with Figure 8 As shown, the upper end face of the transmission wheel 109 is connected to the pulley 108, and the lower end face is opposite to the main body 206. (Combined) Figure 11 , Figure 12 As shown, the lower surface of the transmission wheel 109 is provided with a mounting groove 103 along the circumferential direction, and a magnet 301 is placed in the mounting groove 103; the fixed shell 210 of the turbine part 202 is provided with a magnetic ring 302 corresponding to the magnet 301. When the transmission wheel 109 rotates, under the attraction of the magnetic ring 302 and the magnet 301, the convex shaft 214 can rotate within the limiting hole 213.

[0035] In this implementation, combined with Figure 8 and Figure 11 As shown, when magnet 301 attracts magnetic ring 302, it generates an upward force. This upward force causes the fixed shell 210 to move upward or has an upward tendency to move. This causes the cam shaft 214 to abut against and wear the side wall of the limiting hole 213 of the neck 207. Over time, this will damage the neck 207. Therefore, to overcome this problem, a wear-resistant component 4 is provided in the turbine section 202. The wear-resistant component 4 is provided on the cam shaft 214 to increase the wear resistance between the cam shaft 214 and the limiting hole 213.

[0036] Specifically, the wear-resistant component 4 includes a bearing shell 401 and a thrust washer 402. The bearing shell 401 is disposed on the circumferential sidewall of the cam 214, and is used to increase the wear resistance between the circumferential sidewall of the cam 214 and the circumferential sidewall of the limiting hole 213. The thrust washer 402 is disposed on the top of the cam 214 near the neck 207, and is used to increase the wear resistance between the top wall of the cam 214 and the bottom wall of the limiting hole 213.

[0037] In this implementation, the aforementioned bearing 105 can be a roller bearing 105 with a larger diameter, thereby replacing the shaft 104 and bearing 105 in the prior art. This structure of the roller bearing 105 with a larger diameter can increase the overall structural strength, withstand greater belt tension, and significantly extend the service life of the water pump. There is no risk of the water pump impeller 211 falling off under stress.

[0038] In addition, the turbine housing of this application adopts a completely sealed structure, thus replacing the existing drainage hole for leaking water and eliminating the water seal structure, resulting in a simpler structure and lower manufacturing cost.

[0039] Example 2 This application also provides an internal combustion engine, including the aforementioned internal combustion engine water pump. The beneficial effects of the steel frame structure are therefore not detailed here.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A water pump for an internal combustion engine, connected to the engine block; characterized in that, The internal combustion engine water pump includes a drive assembly and a scroll assembly; The vortex assembly has a housing portion and a turbine portion; the housing portion has a sealed end and an open end, the drive assembly is disposed at the sealed end, and the open end communicates with the cylinder body; when the open end communicates with the cylinder body, the housing portion surrounds a sealed receiving cavity capable of housing the turbine portion. The drive assembly and the turbine are connected by a magnetic adsorption structure. When the drive assembly rotates, it can drive the turbine to rotate along with the drive assembly.

2. The internal combustion engine water pump according to claim 1, characterized in that, The magnetic adsorption structure includes a magnet and a magnetic ring; One of the magnet and the magnetic ring is disposed on the side of the drive assembly facing the turbine, and the other is disposed on the side of the turbine facing the drive assembly. The drive assembly and the turbine are connected together by the attraction of the magnet and the magnetic ring, so that when the drive assembly rotates, the turbine can rotate with the drive assembly.

3. The internal combustion engine water pump according to claim 2, characterized in that, The housing portion includes a main body and a neck communicating with the main body; The neck has a tapering structure from the direction close to the body to the direction away from the body; The sealing end is formed at the end of the neck opposite to the body; the opening end is formed at the end of the body opposite to the neck.

4. The internal combustion engine water pump according to claim 3, characterized in that, The drive assembly includes a drive unit and a transmission unit connected to the drive unit; The drive unit is disposed above the neck via a bearing unit, the transmission unit is sleeved on the neck, and the magnet or the magnetic ring is disposed on the side of the transmission unit facing the turbine unit; When the drive unit rotates, it can drive the transmission unit to rotate along with the drive unit, and when the transmission unit rotates, it can drive the turbine unit to rotate.

5. The internal combustion engine water pump according to claim 4, characterized in that, The bearing portion includes a shaft and a bearing; a mounting hole is provided at one end of the neck away from the main body; the fixed end of the shaft is disposed in the mounting hole and the extended end of the shaft extends in a direction away from the neck, and the drive portion is sleeved on the extended end through the bearing.

6. The internal combustion engine water pump according to claim 5, characterized in that, The driving unit is a belt pulley, and the transmission unit is a transmission wheel; The pulley is sleeved on the extended end of the shaft via the bearing; the drive wheel is sleeved on the neck and connected to the pulley, so that the pulley can drive the drive wheel to rotate; The magnet or magnetic ring is provided on the side of the transmission wheel facing the turbine, so that when the transmission part rotates, it can drive the turbine part to rotate.

7. The internal combustion engine water pump according to claim 6, characterized in that, The turbine unit includes a fixed housing and an impeller disposed on the fixed housing; A limiting hole is provided on the side of the neck facing the turbine, and a convex shaft is provided near the neck and at the position corresponding to the limiting hole of the fixing shell; The fixed shell is provided with the magnetic ring or the magnet on the side facing the transmission wheel, so that when the transmission wheel rotates, the magnetic ring and the magnet attract each other, allowing the convex shaft to rotate within the limiting hole.

8. The internal combustion engine water pump according to claim 7, characterized in that, The turbine section is also provided with wear-resistant components; The wear-resistant component is disposed on the convex shaft to increase the wear resistance between the convex shaft and the limiting hole.

9. The internal combustion engine water pump according to claim 8, characterized in that, The wear-resistant components include bearing bushes and thrust washers; The bearing bush is disposed on the circumferential sidewall of the cam shaft, and the thrust washer is disposed on the top of the cam shaft near the neck.

10. An internal combustion engine, characterized in that, Includes the internal combustion engine water pump as described in any one of claims 1-9.

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