Automobile engine impeller capable of improving heat discharge efficiency

By designing a dual-impeller structure, with the inner and outer blades rotating in opposite directions, the problem of water flow interference in the single-impeller structure is solved, improving water intake and delivery efficiency, enhancing engine heat dissipation efficiency, and reducing maintenance costs.

CN223894507UActive Publication Date: 2026-02-10JIANGSU TUOMING MASCH MFG CO LTD
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Patent Information

Application Number
CN202520807347.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-02-10
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

The blades of existing automotive engine impellers are all in a centrifugal direction when pumping and conveying water, which causes interference and reduces working efficiency and engine heat dissipation efficiency.

Method used

A dual-impeller structure was designed, in which the inner blade rotates clockwise driven by the inner gear ring and the hub, and the outer blade rotates counterclockwise driven by the outer gear ring and the rotating plate. Through meshing and screw fixing, they form an integrated structure, generating suction and centrifugal force respectively, to achieve efficient water intake and discharge.

Benefits of technology

It improves the efficiency of water intake and delivery, reduces interference in the single impeller structure, enhances the heat dissipation efficiency of automobile engines, and allows damaged parts to be replaced individually, reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile water pump impellers, and discloses an automobile engine impeller capable of improving heat discharge efficiency, which comprises a first cover body, a second cover body is arranged on the front side of the first cover body, a connecting rod is arranged at the front end of the first cover body, a lantern ring is arranged on the inner side of the connecting rod, and an inner ring cover is sleeved on the inner side of the lantern ring. And outer blades are arranged on the outer side of the rear end of the second cover body. According to the impeller, through the arrangement of the inner gear ring and the outer gear ring, when the inner blades rotate clockwise to suck water flow, the outer gear ring can drive the rotating plate to rotate reversely, so that the outer blades are driven to rotate anticlockwise, outward expanding centrifugal force is generated, and the sucked water flow is discharged from the water outlet; and although the two blades are driven by one bearing, water absorption and water drainage are respectively carried out by the two completely opposite blades without mutual interference, so that the water inlet efficiency and the water delivery efficiency are improved, and the heat exhaust efficiency of the automobile engine is also improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive water pump impeller technology, specifically an automotive engine impeller that improves heat dissipation efficiency. Background Technology

[0002] Inside the cylinder block of a car engine, there are multiple water channels for cooling water circulation, which are connected to the radiator located at the front of the car via water pipes, forming a large water circulation system. A car water pump can pump hot water out of the engine block's water channels and pump in cold water, thereby lowering the engine temperature.

[0003] The impeller is the core component of a water pump, typically made of cast iron. Its blades play a crucial role and are closely related to the pump's performance. Currently, most existing water pump impellers are single impellers. For example, a car water pump impeller with blade edge reinforcement disclosed in Chinese Utility Model Patent Application Publication No. CN220706025U uses edge strips to protect the blade edges, preventing impurities in the water from damaging the blade edges and extending the blade's service life. Simultaneously, the screw and a pair of threaded seats prevent the threaded seats from falling off, further enhancing the protection of the blade. While this improves the impeller's protection, in actual use, the impeller blades are still integrated, and the integrated blades operate as a single impeller. When drawing and transporting water, the centrifugal force generated by this single impeller is used, and the water intake and delivery occur in the same centrifugal direction, causing interference and reducing efficiency. This leads to low heat dissipation efficiency in car engines. Therefore, there is a need to provide a car engine impeller with improved heat dissipation efficiency to address these issues. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an automotive engine impeller that improves heat removal efficiency. This solves the problem mentioned in the background art, where a single impeller operates in a centrifugal direction during both water pumping and conveying, resulting in interference between the two processes, reduced working efficiency, and impact on the heat removal efficiency of the automotive engine.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: an automobile engine impeller for improving heat dissipation efficiency, comprising a first cover, a second cover on the front side of the first cover, a connecting rod at the front end of the first cover, a collar on the inner side of the connecting rod, an inner ring cover fitted onto the inner side of the collar, an outer blade on the outer side of the rear end of the second cover, a water guide ring on the inner side of the second cover, a sealing cover on the outer side of the water guide ring, and a reinforcing pin on the outer side of the front end of the second cover.

[0008] Optionally, the first cover includes a rear cover plate, a mounting groove, an internal gear ring, a hub, an inner blade, and a bearing. The mounting groove is provided on the inner side of the front end of the rear cover plate, the internal gear ring is provided in the middle of the front end of the mounting groove, the hub is provided on the inner side of the internal gear ring, the inner blade is provided at the front end of the hub, and the bearing is provided in the middle of the front end of the inner blade.

[0009] Optionally, the second cover includes a front cover plate, a rotating plate, an outer toothed ring, a water outlet, and an inner groove. The rotating plate is provided on the inner side of the upper end of the front cover plate, the outer toothed ring is provided in the middle of the upper end of the rotating plate, the water outlet is provided on the outer side of the lower end of the outer toothed ring, and the inner groove is provided on the inner side of the upper end of the front cover plate.

[0010] Optionally, the outer diameters of the first cover and the second cover are matched, eight connecting rods are symmetrically distributed, a limiting groove is opened on the inner side of the collar, the diameter of the rear end of the inner ring cover is adapted to the limiting groove opened on the inner side of the collar, and ball bearings are symmetrically distributed on the outer end of the inner ring cover.

[0011] Optionally, each of the outer blades is reinforced by three screws, the outer diameter of the front end of the water guide ring is adapted to the inner diameter of the sealing cover, and eight reinforcing pins are symmetrically distributed. The front end of each reinforcing pin penetrates the interior of the second cover and extends into the interior of the connecting rod.

[0012] Optionally, the connecting rod has a threaded hole inside, and fifteen outer blades are symmetrically distributed.

[0013] Optionally, the inner toothed ring has an inner toothed groove on its inner side, the inner blade rotates clockwise, and the front end of the bearing penetrates the interior of the inner blade for reinforcement.

[0014] Optionally, the lower diameter of the rotating plate is adapted to the inner diameter of the embedded groove, and the water outlets are symmetrically distributed.

[0015] In summary, the technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model has a reasonable structure. Through the set bearing, the hub is driven to rotate, which in turn drives the inner blade to rotate clockwise. Since the inner blade is installed in the middle of the front end of the hub, and the inner and outer toothed rings at the front end of the hub mesh with each other, and the outer toothed ring and the water guide ring are fixed by screws, the three form an integrated structure. The inner blade is located in the inner space of the water guide ring, generating suction to draw water in. At the same time, when the inner and outer toothed rings mesh, the outer toothed ring will rotate in the opposite direction with the rotating plate, thereby driving the outer blade to rotate counterclockwise, generating outward centrifugal force, and discharging the water that has entered the inner side of the outer toothed ring from the outlet. Compared with the traditional single impeller, although both are driven by a single bearing, since water intake and drainage are performed by two completely opposite blades, there is no interference between them, which improves the efficiency of water intake and delivery, and also improves the heat dissipation efficiency of the car engine.

[0017] 2. In this utility model, the outer blades are designed to exist independently of each other. If a fault occurs in a certain part, only the damaged part can be removed, while the undamaged parts can continue to be used, thus reducing costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the planar structure of the first cover of this utility model;

[0020] Figure 3 This is a schematic diagram of the planar structure of the second cover of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the front cover, rotating plate, and inner groove of this utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional separation structure of the inner toothed ring, outer toothed ring, and water-guiding ring of this utility model.

[0023] In the diagram: 1. First cover; 2. Second cover; 3. Connecting rod; 4. Collar; 5. Inner ring cover; 6. Outer blade; 7. Water guide ring; 8. Sealing cover; 9. Reinforcing pin; 101. Rear cover plate; 102. Mounting groove; 103. Inner toothed ring; 104. Hub; 105. Inner blade; 106. Bearing; 201. Front cover plate; 202. Rotating plate; 203. Outer toothed ring; 204. Water outlet; 205. Embedded groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Reference Figures 1-5 The illustration shows an automotive engine impeller for improving heat dissipation efficiency, comprising a first cover 1, a second cover 2 on the front side of the first cover 1, the outer diameters of the first cover 1 and the second cover 2 being identical, a connecting rod 3 at the front end of the first cover 1, eight connecting rods 3 symmetrically distributed, each connecting rod 3 having a threaded hole inside, a collar 4 on the inner side of the connecting rod 3, a limit groove on the inner side of the collar 4, an inner ring cover 5 fitted onto the inner side of the collar 4, ball bearings symmetrically distributed on the outer end of the inner ring cover 5, and the diameter of the rear end of the inner ring cover 5 being... The second cover 2 has an outer blade 6 on the outer side of its rear end, which is adapted to the limiting groove on the inner side of the collar 4. Fifteen outer blades 6 are symmetrically distributed, and each outer blade 6 is reinforced by three screws. The inner side of the second cover 2 has a water guide ring 7, and the outer side of the water guide ring 7 has a sealing cap 8. The outer diameter of the front end of the water guide ring 7 is adapted to the inner diameter of the sealing cap 8. The outer side of the front end of the second cover 2 has a reinforcing pin 9, which is symmetrically distributed in eight pieces. The front end of the reinforcing pin 9 penetrates the interior of the second cover 2 and extends into the interior of the connecting rod 3.

[0026] The water guide ring 7 has a spiral groove on its inner side. In conjunction with the inner blade 105 installed at the front end of the first cover 1, water can be quickly drawn into the inner cavity of the outer toothed ring 203. At the same time, due to the meshing of the outer toothed ring 203 and the inner toothed ring 103, the rotating plate 202 on the inner side of the front end of the second cover 2 also starts to rotate, thereby driving the outer blade 6 to rotate. However, since the rotation direction is completely opposite to that of the inner blade 105, the outer blade 6 will generate an outward centrifugal force during rotation, thereby quickly drawing the water in the inner cavity of the outer toothed ring 203 out of the outlet 204, thus completing the rapid intake and discharge of water.

[0027] As an optional implementation method in this embodiment, such as Figure 1 , Figure 2 and Figure 5As shown, the first cover 1 includes a rear cover plate 101, a mounting groove 102, an internal gear ring 103, a hub 104, an inner blade 105, and a bearing 106. The mounting groove 102 is provided on the inner side of the front end of the rear cover plate 101. The internal gear ring 103 is provided in the middle of the front end of the mounting groove 102. The inner side of the internal gear ring 103 is provided with an internal gear groove. The hub 104 is provided on the inner side of the internal gear ring 103. The front end of the hub 104 is provided with an inner blade 105. The inner blade 105 rotates clockwise. The bearing 106 is provided in the middle of the front end of the inner blade 105. The front end of the bearing 106 penetrates the interior of the inner blade 105 for reinforcement.

[0028] The bearing 106 drives the hub 104 to rotate, which in turn drives the inner blade 105 to rotate clockwise. Since the inner blade 105 is installed in the middle of the front end of the hub 104, and the inner toothed ring 103 and the outer toothed ring 203 at the front end of the hub 104 mesh with each other, and the outer toothed ring 203 and the water guide ring 7 are fixed by screws, the three form an integrated structure, so that the inner blade 105 is located in the inner space of the water guide ring 7, generating suction force to quickly draw water into the inner space of the outer toothed ring 203 in conjunction with the spiral groove on the inner side of the water guide ring 7, thereby improving the water absorption efficiency.

[0029] like Figure 3 , Figure 4 and Figure 5 As shown, in this embodiment, the second cover 2 includes a front cover plate 201, a rotating plate 202, an outer toothed ring 203, a water outlet 204, and an inner groove 205. The rotating plate 202 is provided on the inner side of the upper end of the front cover plate 201. The lower diameter of the rotating plate 202 is adapted to the inner diameter of the inner groove 205. The outer toothed ring 203 is provided in the middle of the upper end of the rotating plate 202. The water outlet 204 is provided on the outer side of the lower end of the outer toothed ring 203. The water outlets 204 are symmetrically distributed. The inner groove 205 is provided on the inner side of the upper end of the front cover plate 201.

[0030] When the external gear ring 203 meshes with the internal gear ring 103, the external gear ring 203 will rotate in the opposite direction with the rotating plate 202, thereby driving the external blades 6 to rotate counterclockwise, generating an outward centrifugal suction force, which quickly draws the water flowing into the inner side of the external gear ring 203 out of the outlet 204. Then the external blades 6 push the water flow into the conveying pipe for transportation, improving the water transportation efficiency.

[0031] The working principle of this utility model is as follows: This automobile engine impeller, which improves heat dissipation efficiency, drives the hub 104 to rotate via the bearing 106, which in turn drives the inner blade 105 to rotate clockwise. Since the inner blade 105 is installed at the front center of the hub 104, and the inner toothed ring 103 and outer toothed ring 203 at the front of the hub 104 mesh with each other, and the outer toothed ring 203 is fixed to the water guide ring 7 by screws, the three form an integrated structure. This allows the inner blade 105 to be positioned inside the water guide ring 7, generating suction to draw water in. Simultaneously, the inner... When the toothed ring 103 meshes with the outer toothed ring 203, the outer toothed ring 203 will rotate in the opposite direction with the rotating plate 202, thereby driving the outer blade 6 to rotate counterclockwise, generating an outward centrifugal force, which discharges the water flowing into the inner side of the outer toothed ring 203 from the outlet 204. Compared with the traditional single impeller, although both are driven by a bearing 106, since water intake and drainage are carried out by two completely opposite blades, there is no interference between them, which improves the efficiency of water intake and water delivery, and also improves the heat dissipation efficiency of the car engine.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automobile engine impeller for improving heat removal efficiency, comprising a first cover (1), characterized in that: The first cover (1) has a second cover (2) on its front side. The first cover (1) has a connecting rod (3) at its front end. The connecting rod (3) has a collar (4) on its inner side. An inner ring cover (5) is fitted onto the inner side of the collar (4). The second cover (2) has an outer blade (6) on its rear side. The second cover (2) has a water guide ring (7) on its inner side. The water guide ring (7) has a sealing cover (8) on its outer side. The second cover (2) has a reinforcing pin (9) on its front side.

2. The automobile engine impeller for improving heat dissipation efficiency according to claim 1, characterized in that: The first cover (1) includes a rear cover plate (101), a mounting groove (102), an internal gear ring (103), a hub (104), an inner blade (105), and a bearing (106). The mounting groove (102) is provided on the inner side of the front end of the rear cover plate (101). The internal gear ring (103) is provided in the middle of the front end of the mounting groove (102). The hub (104) is provided on the inner side of the internal gear ring (103). The inner blade (105) is provided at the front end of the hub (104). The bearing (106) is provided in the middle of the front end of the inner blade (105).

3. The automobile engine impeller for improving heat removal efficiency according to claim 1, characterized in that: The second cover (2) includes a front cover plate (201), a rotating plate (202), an external toothed ring (203), a water outlet (204), and an inner groove (205). The rotating plate (202) is provided on the inner side of the upper end of the front cover plate (201), the external toothed ring (203) is provided in the middle of the upper end of the rotating plate (202), the water outlet (204) is provided on the outer side of the lower end of the external toothed ring (203), and the inner groove (205) is provided on the inner side of the upper end of the front cover plate (201).

4. The automobile engine impeller for improving heat dissipation efficiency according to claim 1, characterized in that: The outer diameters of the first cover (1) and the second cover (2) are matched. There are eight connecting rods (3) symmetrically distributed. A limiting groove is opened on the inner side of the collar (4). The diameter of the rear end of the inner ring cover (5) is adapted to the limiting groove opened on the inner side of the collar (4). Ball bearings are symmetrically distributed on the outer end of the inner ring cover (5).

5. The automobile engine impeller for improving heat removal efficiency according to claim 1, characterized in that: Each of the outer blades (6) is reinforced by three screws. The outer diameter of the front end of the water guide ring (7) is matched with the inner diameter of the sealing cover (8). There are eight reinforcing pins (9) symmetrically distributed. The front end of the reinforcing pin (9) penetrates the interior of the second cover (2) and extends to the interior of the connecting rod (3).

6. The automobile engine impeller for improving heat removal efficiency according to claim 1, characterized in that: The connecting rod (3) has a threaded hole inside, and the outer blades (6) are symmetrically distributed in fifteen pieces.

7. The automobile engine impeller for improving heat dissipation efficiency according to claim 2, characterized in that: The inner toothed ring (103) has an inner toothed groove on its inner side, the inner blade (105) rotates clockwise, and the front end of the bearing (106) penetrates the interior of the inner blade (105) for reinforcement.

8. The automobile engine impeller for improving heat removal efficiency according to claim 3, characterized in that: The lower diameter of the rotating plate (202) is adapted to the inner diameter of the embedded groove (205), and the water outlets (204) are symmetrically distributed.

Citation Information

Patent Citations

  • Automobile water pump impeller with reinforced blade covered edges

    CN220706025U