Cooling water pump impeller of automobile engine
By using a closed impeller chamber and coated blades, combined with a motor drive and lubricated bearing design, the problem of easy damage to cooling water pump impellers has been solved, improving efficiency and durability, reducing energy loss, and extending service life.
Patent Information
- Application Number
- CN202520525536.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing automotive engine coolant pumps suffer from wear-prone impellers, aging seals, or damaged bearings, which can affect coolant circulation, potentially leading to engine overheating and damage. Furthermore, replacement costs are high and efficiency is low.
Design a closed impeller chamber structure equipped with a lubrication pipe and an oil inlet pipe to lubricate the bearings, use a coated blade, and combine a motor drive and a reduction ring to ensure smooth rotation, prevent dust and scale buildup, and improve impeller efficiency and durability.
It improves the efficiency and durability of the impeller, reduces energy loss, extends service life, lowers replacement costs, and ensures the safe and reliable operation of the engine.
Smart Images

Figure CN223661962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine cooling water pump impeller technology, specifically an impeller for an automotive engine cooling water pump. Background Technology
[0002] The cooling water pump is a core component of the automotive engine cooling system, and its performance directly determines the engine's operating condition. With the rapid development of my country's automotive industry, solving the technical problems of high power consumption and low efficiency of existing cooling water pumps, and ensuring the long-term, safe, reliable, and efficient operation of the engine, has become an urgent task in the research of automotive engine cooling systems.
[0003] Over time, engine coolant pump impellers may fail due to wear, aging seals, or damaged bearings. Once the impeller malfunctions, coolant circulation will be affected, potentially leading to engine overheating and, in severe cases, engine damage. Replacing the coolant pump impeller is usually a preventative maintenance measure. While timely replacement of the impeller when early signs of wear appear can prevent engine damage caused by cooling system failure and extend engine life, it is costly, slow, and disruptive to production. Therefore, a new type of automotive engine coolant pump impeller is needed to address these issues. Utility Model Content
[0004] Over time, engine coolant pump impellers may fail due to wear, aging seals, or damaged bearings. Once the impeller malfunctions, coolant circulation is affected, potentially leading to engine overheating and, in severe cases, engine damage. Replacing the coolant pump impeller is usually a preventative maintenance measure. While timely replacement of the impeller when early signs of wear appear can prevent engine damage caused by cooling system failure and extend engine life, it is costly, inefficient, and disruptive to production. The purpose of this invention is to provide an automotive engine coolant pump impeller that addresses the problems described in the background.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An impeller for an automotive engine cooling water pump includes a main body, characterized in that: an impeller assembly is fixedly connected to the top of the main body, an oil supply assembly is fixedly connected to the top of the impeller assembly, and a drive assembly is fixedly connected to the top of the oil supply assembly.
[0007] The main body includes an impeller chamber, and a water-cooling coil is fixedly connected to the top of the impeller chamber;
[0008] The impeller assembly includes a base, a rotating shaft is rotatably connected inside the base, a connecting rod is fixedly connected to the bottom of the rotating shaft, an impeller disk is fixedly connected to the bottom of the connecting rod, and blades are fixedly connected to the bottom of the impeller disk. The surface of the blades is coated.
[0009] The oil supply assembly includes a base, a bearing seat is fixedly connected to the top of the base, a sealing disc is fixedly connected inside the bearing seat, an oil inlet pipe is fixedly connected to the side of the sealing disc, and the rotating shaft rotates inside the sealing disc.
[0010] As a preferred embodiment of this utility model, a sealing ring is provided inside the base, and a pipe is fixedly connected to the side of the impeller chamber.
[0011] As a preferred embodiment of this utility model, a conveying pipe is fixedly connected to the side of the water-cooled coil, a water chiller is fixedly connected to the top of the conveying pipe, and a water inlet pipe is fixedly connected to the top of the water chiller.
[0012] As a preferred embodiment of this utility model, an oil filter is fixedly connected to the side of the base, an oil filling pipe is fixedly connected to the side of the bearing seat, and several oil inlet pipes are provided.
[0013] As a preferred embodiment of this utility model, the drive assembly includes a heat insulation cover, and a smoke exhaust pipe is fixedly connected to the side of the heat insulation cover.
[0014] As a preferred embodiment of this utility model, the heat insulation cover is provided with a shock-absorbing rotating plug inside, and the top of the heat insulation cover is fixedly connected to an outer shell.
[0015] As a preferred embodiment of this utility model, a motor is installed inside the outer casing, and a reduction ring is fixedly connected to the output end of the motor.
[0016] As a preferred embodiment of this utility model, a connecting pipe is fixedly connected to the bottom of the deceleration ring, and the outer shell is made of stainless steel.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. In this utility model, by using an impeller chamber to enclose the impeller and only reserving exhaust pipes, damage caused by external impeller placement can be prevented. At the same time, fluid resistance and energy loss can be reduced, thereby improving efficiency. The impeller can be kept clean, preventing dust and scale accumulation, reducing energy loss, improving the precision and quality of the impeller, and effectively improving the efficiency and durability of the impeller. Coating and treating the blade surface, such as polishing, sandblasting, and plating, can reduce surface roughness, reduce energy loss, and improve efficiency.
[0019] 2. In this utility model, oil is added to the rotating bearing by using a filler pipe and an oil inlet pipe. Several oil inlet pipes can ensure the uniformity of oil addition. Bearing lubrication can ensure that the engine shaft has excellent low-temperature and normal-temperature driving characteristics, extremely low-temperature starting and running torque, as well as excellent high-speed resistance, lubrication and load-bearing capacity. It can improve wear resistance and transmission efficiency, outstanding water resistance and corrosion protection, excellent oxidation stability and anti-aging ability, and extremely long service life. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the drive component structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the oil supply component structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the impeller assembly structure of this utility model.
[0024] In the diagram: 1. Main body; 101. Impeller compartment; 102. Water-cooled coil; 103. Conveying pipe; 104. Water chiller; 105. Water inlet pipe; 2. Impeller assembly; 201. Base; 202. Shaft; 203. Connecting rod; 204. Impeller disc; 205. Blade; 206. Pipeline; 207. Sealing ring; 3. Oil supply assembly; 301. Base; 302. Oil filter; 303. Bearing housing; 304. Oil filling pipe; 305. Sealing disc; 306. Oil inlet pipe; 4. Drive assembly; 401. Heat insulation cover; 402. Exhaust pipe; 403. Shock-damping rotating plug; 404. Connecting pipe; 405. Reduction ring; 406. Motor; 407. Outer casing. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] Example: Please refer to Figures 1-4 The impeller of a car engine cooling water pump shown includes a main body 1, an impeller assembly 2 fixedly connected to the top of the main body 1, an oil supply assembly 3 fixedly connected to the top of the impeller assembly 2, and a drive assembly 4 fixedly connected to the top of the oil supply assembly 3.
[0027] In this embodiment, reference is made to Figure 1, Figure 3 and Figure 4 As shown, the main body 1 includes an impeller chamber 101, with a water-cooling coil 102 fixedly connected to the top of the impeller chamber 101. The impeller assembly 2 includes a base 201, with a rotating shaft 202 rotatably connected inside the base 201. A connecting rod 203 is fixedly connected to the bottom of the rotating shaft 202, and an impeller disk 204 is fixedly connected to the bottom of the connecting rod 203. Blades 205 are fixedly connected to the bottom of the impeller disk 204, and the surface of the blades 205 is coated. The oil supply assembly 3 includes a base 301, with a bearing seat 303 fixedly connected to the top of the base 301. A sealing disc 305 is fixedly connected inside the bearing seat 303. An oil inlet pipe 306 is fixedly connected to the side. The rotating shaft 202 rotates inside the sealing disc 305. The impeller is enclosed by the impeller chamber 101, and only the exhaust pipe 206 is reserved for ventilation. This not only prevents damage caused by external impeller placement, but also reduces fluid resistance and energy loss, thereby improving efficiency. It can keep the impeller clean, prevent dust and scale accumulation, reduce energy loss, improve the accuracy and quality of the impeller, and effectively improve the efficiency and durability of the impeller. Coating and treating the surface of the blade 205, such as polishing, sandblasting, and plating, can reduce surface roughness, reduce energy loss, and improve efficiency.
[0028] The base 201 has a sealing ring 207 inside. The impeller chamber 101 is fixedly connected to a pipe 206. The water cooling coil 102 is fixedly connected to a conveying pipe 103. The top of the conveying pipe 103 is fixedly connected to a water chiller 104. The top of the water chiller 104 is fixedly connected to a water inlet pipe 105. The base 301 has an oil filter 302 fixedly connected to its side. The bearing housing 303 has a filling pipe 304 fixedly connected to its side. Several oil inlet pipes 306 are provided. Oil is added to the rotating bearing using the filling pipes 304 and the oil inlet pipes 306. Several oil inlet pipes 306 can ensure the uniformity of oil addition. Bearing lubrication can ensure that the engine shaft 202 has excellent low-temperature and normal-temperature driving characteristics, extremely low-temperature starting and running torque, as well as excellent high-speed resistance, lubricity and load-bearing capacity. It can improve wear resistance and transmission efficiency, outstanding water resistance and corrosion protection, excellent oxidation stability and anti-aging ability, and extremely long service life.
[0029] In this embodiment, reference is made to Figure 1 and Figure 2As shown, the drive assembly 4 includes a heat insulation cover 401, a smoke exhaust pipe 402 fixedly connected to the side of the heat insulation cover 401, a shock-absorbing rotating plug 403 provided inside the heat insulation cover 401, a housing 407 fixedly connected to the top of the heat insulation cover 401, a motor 406 installed inside the housing 407, a reduction ring 405 fixedly connected to the output end of the motor 406, a connecting pipe 404 fixedly connected to the bottom of the reduction ring 405, and the housing 407 is made of stainless steel. The heat insulation cover 401 can prevent the top motor 406 from overheating and being damaged.
[0030] In this design, an automotive engine cooling water pump impeller is driven by a motor 406, which simultaneously rotates the reduction ring 405, connecting pipe 404, and rotating shaft 202. This, in turn, drives the impeller disc 204 and blades 205 at the bottom of the connecting rod 203, thereby driving the engine cooling water pump impeller. Coolant enters the water cooler 104 through the delivery pipe 103, its purpose being to contact the engine surface through the inner wall of the water jacket, thereby absorbing the heat generated by the engine and cooling it. Oil is added to the rotating bearing through the filler pipe 304 and oil inlet pipe 306 to ensure smooth rotation of the rotating shaft 202. The impeller chamber 101 provides a closed enclosure for the impeller, keeping it clean, preventing dust and scale buildup, and reducing energy loss.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An impeller for an automotive engine cooling water pump, comprising a main body (1), characterized in that: An impeller assembly (2) is fixedly connected to the top of the main body (1), an oil supply assembly (3) is fixedly connected to the top of the impeller assembly (2), and a drive assembly (4) is fixedly connected to the top of the oil supply assembly (3). The main body (1) includes an impeller chamber (101), and a water-cooling coil (102) is fixedly connected to the top of the impeller chamber (101); The impeller assembly (2) includes a base (201), a rotating shaft (202) is rotatably connected inside the base (201), a connecting rod (203) is fixedly connected to the bottom of the rotating shaft (202), an impeller disk (204) is fixedly connected to the bottom of the connecting rod (203), and blades (205) are fixedly connected to the bottom of the impeller disk (204). The surface of the blades (205) is coated. The oil supply assembly (3) includes a base (301), a bearing seat (303) is fixedly connected to the top of the base (301), a sealing disc (305) is fixedly connected inside the bearing seat (303), an oil inlet pipe (306) is fixedly connected to the side of the sealing disc (305), and the rotating shaft (202) rotates inside the sealing disc (305).
2. The impeller of an automotive engine cooling water pump according to claim 1, characterized in that: The base (201) is provided with a sealing ring (207) inside, and the impeller chamber (101) is fixedly connected with a pipe (206).
3. The impeller of an automotive engine cooling water pump according to claim 1, characterized in that: A conveying pipe (103) is fixedly connected to the side of the water-cooled coil (102), a water chiller (104) is fixedly connected to the top of the conveying pipe (103), and a water inlet pipe (105) is fixedly connected to the top of the water chiller (104).
4. The impeller of an automotive engine cooling water pump according to claim 1, characterized in that: An oil filter (302) is fixedly connected to the side of the base (301), an oil filling pipe (304) is fixedly connected to the side of the bearing seat (303), and several oil inlet pipes (306) are provided.
5. The impeller of an automotive engine cooling water pump according to claim 1, characterized in that: The drive assembly (4) includes a heat shield (401), and a smoke exhaust pipe (402) is fixedly connected to the side of the heat shield (401).
6. The impeller of an automotive engine cooling water pump according to claim 5, characterized in that: The heat insulation cover (401) is provided with a shock-absorbing rotating plug (403) inside, and the top of the heat insulation cover (401) is fixedly connected to a shell (407).
7. The impeller of an automotive engine cooling water pump according to claim 6, characterized in that: A motor (406) is installed inside the housing (407), and a reduction ring (405) is fixedly connected to the output end of the motor (406).
8. The impeller of an automotive engine cooling water pump according to claim 7, characterized in that: The bottom of the deceleration ring (405) is fixedly connected to a connecting pipe (404), and the outer shell (407) is made of stainless steel.