Engine cooling system
By introducing selectively connected water intake pipes and water pump inlet structures into the engine cooling system, the production management and design cost problems caused by hydraulic retarder are solved, and the rapid state switching and component versatility of the engine cooling system are achieved.
Patent Information
- Application Number
- CN202422249312.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The prior art requires the development of two sets of engines and water pumps of different structures for different models of hydraulic retarders, resulting in increased production management difficulties, non-universal parts, high design costs and difficult switching.
An engine cooling system is designed, including a structure equipped with selectively connected water intake pipe, retarder return pipe and water pump inlet. The rapid switching of retarder state and non-retarder state is achieved through the bypass hole and the connecting pipe, and the same engine and water pump are shared.
Fast and simple switching between retarder state and non-retarder state is achieved, avoiding the development of two sets of engines and water pumps of different structures, reducing production management difficulties and design costs.
Smart Images
Figure CN223120012U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobiles, and particularly relates to an engine cooling system. Background Art
[0002] At present, for different vehicle models with or without hydraulic retarders configured, manufacturing enterprises generally develop two sets of engines and water pumps with different structures. The main differences in their structures lie in whether the engine is provided with a water intake hole for the hydraulic retarder and whether the water pump is provided with a water return port for the hydraulic retarder. The two sets of engines and water pumps with different structures are put into production at the same time. On the one hand, it is necessary to compile a larger number of order numbers, resulting in increased production management difficulty. On the other hand, the differences in structure make the parts not interchangeable, increasing the design cost. In addition, the two sets of engines and water pumps with different structures also make it more difficult to modify the engine cooling system between the retarder state and the non-retarder state. The cost of the parts required for modification is high, and the working hours consumed are long. Content of the Utility Model
[0003] In view of this, the purpose of the utility model is to provide an engine cooling system to solve the above problems brought about by developing two sets of engines and water pumps with different structures.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] An engine cooling system, comprising:
[0006] A water pump, the water pump is provided with a first water inlet and a second water inlet, and the first water inlet is used for selectively connecting one of a first cover and a retarder return water pipe;
[0007] A water intake pipe, one end of the water intake pipe is connected to the body of the engine, and the other end is used for selectively connecting one of a second cover and a retarder inlet water pipe. The water intake pipe is provided with a side through hole;
[0008] A connecting pipe connecting the side through hole and the second water inlet;
[0009] Wherein, when the water intake pipe is connected to the retarder inlet water pipe, the end of the retarder inlet water pipe extends into the water intake pipe and blocks the side through hole.
[0010] Optionally, in the above engine cooling system, the water intake pipe has a tubular side connection portion extending outward from the side through hole, and the first end of the connecting pipe is sleeved on the side connection portion and fixed by a first clamp.
[0011] Optionally, in the above engine cooling system, the water pump has a tubular connecting portion extending outward from the second water inlet, and the second end of the connecting pipe is sleeved on the connecting portion and fixed by a second clamp.
[0012] Optionally, in the above engine cooling system, a first pipe joint is included, and the first pipe joint is detachably fixed at a second water inlet of the water pump. A second end of the connecting pipe is sleeved on the first pipe joint and fixed by a second clamp.
[0013] Optionally, in the above engine cooling system, the water pump is provided with a plurality of first threaded holes around the second water inlet, the first pipe joint is provided with a first flange portion, and the first flange portion is provided with first bolt mounting holes corresponding to the first threaded holes.
[0014] Optionally, in the above engine cooling system, the water intake pipe and the connecting pipe are of an integral structure.
[0015] Optionally, in the above engine cooling system, the first cover adapted to the first water inlet is the same as the second cover adapted to the water intake pipe.
[0016] Optionally, in the above engine cooling system, the water pump is provided with a plurality of second threaded holes for installing bolts around the first water inlet.
[0017] Optionally, in the above engine cooling system, one end of the water intake pipe connecting to the engine is provided with a second flange portion, the second flange portion is provided with second bolt mounting holes, and the engine body is provided with third threaded holes corresponding to the second bolt mounting holes.
[0018] Optionally, in the above engine cooling system, one end of the water intake pipe away from the engine is provided with a third flange portion, and the third flange portion is provided with third bolt mounting holes.
[0019] The engine cooling system provided by the present utility model has the following beneficial effects:
[0020] The present utility model can switch between the retarder state and the non-retarder state more conveniently and quickly, and there is no need to develop two different structures of engines and water pumps for whether a hydraulic retarder is configured, thereby solving many problems brought about thereby. Description of the Drawings
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.
[0022] Figure 1It is a schematic diagram of a part of the engine cooling system provided by an embodiment of the present utility model;
[0023] Figure 2 It is Figure 1 a schematic diagram of the water intake pipe in
[0024] Figure 3 It is Figure 1 a schematic diagram of one end of the retarder inlet pipe close to the water intake pipe in
[0025] Figure 4 It is Figure 1 a schematic diagram of the water pump in
[0026] Figure 5 It is Figure 1 a schematic diagram of the water pump after installing the first pipe joint at the second water inlet in
[0027] In the figure, the markings are:
[0028] 100, water intake pipe; 110, second flange part; 111, second bolt mounting hole; 120, third flange part; 121, third bolt mounting hole; 130, bypass part;
[0029] 200, connecting pipe;
[0030] 300, water pump; 301, first water inlet; 302, second water inlet; 303, second threaded hole; 304, first threaded hole;
[0031] 400, retarder inlet pipe; 401, insertion part; 402, fourth bolt mounting hole;
[0032] 500, retarder return pipe;
[0033] 600, first pipe joint. Detailed implementation manners
[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0035] Refer to Figures 1 to 5, an embodiment of the present utility model provides an engine cooling system, including a water intake pipe 100, a connecting pipe 200, and a water pump 300. Among them, the water pump 300 is provided with a first water inlet 301 and a second water inlet 302. The first water inlet 301 is used to selectively connect one of a first cover (not shown in the figure) and a retarder return pipe 500. One end of the water intake pipe 100 is connected to the body of the engine (not shown in the figure), and the other end is used to selectively connect one of a second cover (not shown in the figure) and a retarder inlet pipe 400. The water intake pipe 100 is provided with a side through hole (not marked in the figure). The connecting pipe 200 connects the side through hole and the second water inlet 302. When the water intake pipe 100 is connected to the retarder inlet pipe 400, the end portion of the retarder inlet pipe 400 (i.e., the insertion portion 401 described later) extends into the water intake pipe 100 and blocks the side through hole.
[0036] It should be understood that the hydraulic retarder is a known auxiliary braking device, and its working principle is to convert the kinetic energy of the whole vehicle into heat energy and take it away by the engine circulating coolant. It should be noted that when the water intake pipe 100 is connected to the retarder inlet pipe 400, the water intake pipe 100 and the retarder inlet pipe 400 form a pipeline connecting the engine and the hydraulic retarder, and the function is to introduce the coolant in the engine jacket into the hydraulic retarder. When the first water inlet 301 of the water pump 300 is connected to the retarder return pipe 500, the retarder return pipe 500 forms a pipeline connecting the water pump 300 and the hydraulic retarder, and the function is to introduce the coolant in the hydraulic retarder into the water pump 300.
[0037] Figure 1 The partial structure of the engine cooling system in the retarder state is shown. One end of the water intake pipe 100 away from the retarder inlet pipe 400 is connected to the water intake port on the engine jacket. Since the insertion portion 401 (see Figure 3 ) of the retarder inlet pipe 400 extends into the water intake pipe 100 and blocks the side through hole of the inlet pipe, the water intake pipe 100 and the connecting pipe 200 are not connected at this time. After the coolant comes out of the outlet of the water pump 300, it first enters the engine jacket to cool the engine, then flows into the water intake pipe 100 from the water intake port of the engine jacket, enters the hydraulic retarder through the retarder inlet pipe 400, and then the coolant leaves the hydraulic retarder and flows back to the water pump 300 through the retarder return pipe 500 to complete a cycle.
[0038] When it is necessary to switch to the non-retarder state, simply remove the retarder inlet pipe 400 and the retarder return pipe 500, and then install the first cover and the second cover onto the water pump 300 and the water intake pipe 100 respectively. Among them, the first cover seals the first water inlet 301 of the water pump 300, and the second cover seals one end of the water intake pipe 100 away from the water intake of the engine jacket. The second cover does not seal the side through-hole of the inlet pipe. Therefore, at this time, the water intake pipe 100 is connected to the connecting pipe 200. After the coolant comes out from the water outlet of the water pump 300, it enters the engine jacket to cool the engine, and then flows into the water intake pipe 100 from the water intake of the engine jacket, and returns to the water pump 300 through the connecting pipe 200 to complete a cycle. It is easy to understand that when it is necessary to switch from the non-retarder state to the retarder state, simply remove the first cover and the second cover, and then install the retarder inlet pipe 400 and the retarder return pipe 500 as Figure 1 shown. Thus, it can be seen that when the engine cooling system of the present utility model switches between the retarder state and the non-retarder state, the operation is simple, convenient and fast, and the same set of engine and water pump 300 is used in both states, that is, there is no need to replace the engine or the water pump 300 when switching between the retarder state and the non-retarder state, nor to change the structure of the engine or the water pump 300 itself. Therefore, there is no need to develop two different structures of engines and water pumps 300 for whether a hydraulic retarder is configured or not, thereby solving many problems brought about by this.
[0039] See Figure 1 and Figure 2 In some embodiments, as shown in FIGS. 9 and 10, the water intake pipe 100 may have a tubular bypass portion 130 extending outward from the side through-hole, and the first end of the connecting pipe 200 is sleeved on the bypass portion 130 and fixed by a first clamp (not shown in the figure). Such a setting can facilitate the assembly of the water intake pipe 100 and the connecting pipe 200. For example, the connecting pipe 200 is set as a rubber pipe or a plastic pipe, and after being sleeved on the bypass portion 130 of the water intake pipe 100, it is locked and fixed by a first clamp, quickly completing the assembly of the water intake pipe 100 and the connecting pipe 200. Of course, in other embodiments, the assembly method of the water intake pipe 100 and the connecting pipe 200 can also be set in other forms. For example, the side through-hole of the water intake pipe 100 is set as a threaded hole, and the connecting pipe 200 is provided with an external thread that is screwed and connected to the side through-hole. In addition, in some embodiments, the water intake pipe 100 and the connecting pipe 200 can be set as an integral structure, which can save the assembly steps of the water intake pipe 100 and the connecting pipe 200.
[0040] As Figure 1 、 Figure 4 and Figure 5As shown, the end of the connecting pipe 200 remote from the water intake pipe 100 needs to be connected to the second water inlet 302 of the water pump 300. To this end, the engine cooling system may include a first pipe joint 600, which is detachably fixed to the second water inlet 302 of the water pump 300. The second end of the connecting pipe 200 is sleeved on the first pipe joint 600 and fixed by a second clamp (not shown in the figure). To achieve the detachable connection between the first pipe joint 600 and the water pump 300, the water pump 300 may be provided with a plurality of first threaded holes 304 around the second water inlet 302. The first pipe joint 600 may be provided with a first flange portion, and the first flange portion is provided with first bolt mounting holes corresponding to the first threaded holes 304. In this way, the first pipe joint 600 is detachably connected to the water pump 300 through bolts passing through the first bolt mounting holes and the first threaded holes 304. Of course, in other embodiments, the assembly method of the first pipe joint 600 and the water pump 300 may also be set in other forms. For example, the second water inlet 302 of the water pump 300 is provided as a threaded hole, and the first pipe joint 600 is provided with an external thread that is screwed into the second water inlet 302. In addition, in some embodiments, the water pump 300 may have a tubular connecting portion extending outward from the second water inlet 302. The second end of the connecting pipe 200 is sleeved on the connecting portion and fixed by a second clamp, which can eliminate the first pipe joint 600.
[0041] In some embodiments, the first cover adapted to the first water inlet 301 and the second cover adapted to the water intake pipe 100 may be the same, which can improve the versatility of the cover, and only one type of cover structure needs to be produced. As Figure 4 shown, the water pump 300 may be provided with a plurality of second threaded holes 303 for installing bolts around the first water inlet 301. When installing the first cover or the retarder return pipe 500, it can be fixedly connected to the water pump 300 through bolts passing through the second threaded holes 303.
[0042] See Figure 2 , to facilitate the installation of the water intake pipe 100 to the engine, the end of the water intake pipe 100 connected to the engine may be provided with a second flange portion 110, and the second flange portion 110 is provided with second bolt mounting holes 111. At the same time, the engine body is provided with third threaded holes corresponding to the second bolt mounting holes 111. When installing the water intake pipe 100, it can be fixedly connected to the engine through bolts passing through the third threaded holes. To facilitate the installation of the second cover and the retarder inlet pipe 400 to the water intake pipe 100, the end of the water intake pipe 100 remote from the engine may be provided with a third flange portion 120, and the third flange portion 120 is provided with third bolt mounting holes 121. When installing the second cover or the retarder inlet pipe 400, it can be fixedly connected to the water intake pipe 100 through bolts passing through the third bolt mounting holes 121. For example, in Figure 3In the exemplary embodiment shown, a fourth flange portion is provided at a position of the retarder water inlet pipe 400 close to the insertion portion 401. The fourth flange portion is provided with fourth bolt mounting holes 402. After the insertion portion 401 extends into the water intake pipe 100, the fourth bolt mounting holes 402 are aligned with the third bolt mounting holes 121, so that bolts for fixing the retarder water inlet pipe 400 can be installed.
[0043] In some embodiments, the first cover and the second cover can be provided as plate-shaped, and mounting holes for installing bolts are provided near the edges of the plates. In this way, the first cover and the second cover can be respectively installed on the water pump 300 and the water intake pipe 100 through bolts. Of course, in other embodiments, the first cover and the second cover can also be provided in other forms. For example, the first cover and the second cover can be provided in the form of cocks, that is, the first cover and the second cover are provided with external threads, so that they can be directly screwed onto the water pump 300 and the water intake pipe 100 without using bolts.
[0044] In this specification, the various embodiments are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.
[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An engine cooling system, characterized in that, Comprising: A water pump provided with a first water inlet and a second water inlet, wherein the first water inlet is used for selectively connecting one of a first cover and a retarder return pipe; A water intake pipe, one end of which is connected to the body of the engine and the other end is used for selectively connecting one of a second cover and a retarder inlet pipe, and the water intake pipe is provided with a side through hole; A connecting pipe connecting the side through hole and the second water inlet; Wherein, when the water intake pipe is connected to the retarder inlet pipe, the end of the retarder inlet pipe extends into the water intake pipe and blocks the side through hole.
2. The engine cooling system according to claim 1, wherein The water intake pipe has a tubular side connection portion extending outward from the side through hole, and the first end of the connecting pipe is sleeved on the side connection portion and fixed by a first clamp.
3. The engine cooling system according to claim 2, characterized in that, The water pump has a tubular connection portion extending outward from the second water inlet, and the second end of the connecting pipe is sleeved on the connection portion and fixed by a second clamp.
4. The engine cooling system according to claim 2, wherein Comprising a first pipe joint detachably fixed at the second water inlet of the water pump, and the second end of the connecting pipe is sleeved on the first pipe joint and fixed by a second clamp.
5. The engine cooling system according to claim 4, characterized in that, The water pump is provided with a plurality of first threaded holes around the second water inlet, the first pipe joint is provided with a first flange portion, and the first flange portion is provided with first bolt mounting holes corresponding to the first threaded holes.
6. The engine cooling system according to claim 1, characterized in that, The water intake pipe and the connecting pipe are of an integral structure.
7. The engine cooling system according to claim 1, characterized in that The first cover adapted to the first water inlet is the same as the second cover adapted to the water intake pipe.
8. The engine cooling system according to claim 1, wherein The water pump is provided with a plurality of second threaded holes for installing bolts around the first water inlet.
9. The engine cooling system according to any one of claims 1 to 8, characterized in that, One end of the water intake pipe connected to the engine is provided with a second flange portion, the second flange portion is provided with second bolt mounting holes, and the body of the engine is provided with third threaded holes corresponding to the second bolt mounting holes.
10. The engine cooling system according to claim 9, characterized in that, One end of the water intake pipe away from the engine is provided with a third flange portion, and the third flange portion is provided with third bolt mounting holes.