CN213235205U - Water pump assembly and engine - Google Patents
Water pump assembly and engine Download PDFInfo
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- CN213235205U CN213235205U CN202022037744.4U CN202022037744U CN213235205U CN 213235205 U CN213235205 U CN 213235205U CN 202022037744 U CN202022037744 U CN 202022037744U CN 213235205 U CN213235205 U CN 213235205U
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Abstract
The utility model provides a water pump assembly and engine relates to engine technical field for solve the great technical problem of cooling system occupation space. The water pump assembly comprises a pump body, a pump shell and a pump shaft, wherein the pump shell is connected with the pump body to form a first cavity and a second cavity which are mutually independent, the pump shaft penetrates through the pump body and the pump shell, and the pump shaft penetrates through the first cavity and the second cavity; the first chamber is provided with a first inlet and a first outlet, and the second chamber is provided with a second inlet and a second outlet; the part of the pump shaft, which is positioned in the first chamber, is provided with a first impeller, and the part of the pump shaft, which is positioned in the second chamber, is provided with a second impeller. The utility model provides a water pump assembly and engine are used for reducing the space that cooling system occupy.
Description
Technical Field
The utility model relates to the technical field of engines, especially, relate to a water pump assembly and engine.
Background
During the operation of the engine, a large amount of heat is generated in the combustion chamber of the engine, so that the temperature of parts of a cylinder sleeve, a cylinder head and the like of the engine is increased, the structural stability of the parts is damaged, and the parts need to be cooled by a cooling system. Meanwhile, when the engine works, components used for cooling media such as pressurized air and engine oil in the engine, such as an intercooler and an engine oil cooler, also need to be cooled by the cooling system to ensure the normal work of the engine.
Because the temperature of the cylinder sleeve, the cylinder cover and other parts is obviously higher than that of the intercooler and the oil cooler in the working process of the engine, the performance requirements of the cylinder sleeve, the cylinder cover and other parts relative to the intercooler and the oil cooler on a cooling system are different. Therefore, the cooling system generally used includes a high-temperature cooling system and a low-temperature cooling system, the high-temperature cooling system cools the relatively high-temperature components such as the cylinder liner and the cylinder head, and the low-temperature cooling system cools the relatively low-temperature components such as the intercooler and the oil cooler.
However, the cooling system described above has a problem of occupying a large space.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the embodiment of the utility model provides a water pump assembly and engine for reduce cooling system's occupation space.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
an embodiment of the utility model provides a water pump assembly, wherein, water pump assembly includes: the pump shaft penetrates through the pump body and the pump shell, and the pump shaft penetrates through the first chamber and the second chamber; the first chamber is provided with a first inlet and a first outlet, and the second chamber is provided with a second inlet and a second outlet; the part of the pump shaft, which is positioned in the first chamber, is provided with a first impeller, and the part of the pump shaft, which is positioned in the second chamber, is provided with a second impeller.
The embodiment of the utility model provides a water pump assembly has following advantage:
the embodiment of the utility model provides a water pump assembly includes the pump body, pump case and pump shaft, forms first cavity and second cavity after the pump body and pump case are connected, and the pump shaft passes first cavity and second cavity, and the part that the pump shaft is located first cavity is provided with first impeller, and the part that the pump shaft is located the second cavity is provided with the second impeller. So set up for pump shaft, first cavity and first impeller form first water pump, and pump shaft, second cavity and second impeller form the second water pump. First water pump and second water pump can regard as high temperature cooling system's high temperature water pump and low temperature cooling system's low temperature water pump respectively for integrated high temperature water pump and low temperature water pump on the water pump assembly, respectively need a water pump (two water pumps) with high temperature cooling system and low temperature cooling system among the correlation technique to compare, have reduced the shared space of high temperature water pump and low temperature water pump, thereby have reduced cooling system's occupation space.
The water pump assembly as described above, wherein two pump shaft mounting holes are disposed at an interval in the pump body, a first pump shaft bearing and a second pump shaft bearing are disposed in the two pump shaft mounting holes, and the pump shaft is mounted on the first pump shaft bearing and the second pump shaft bearing.
The water pump assembly as described above, wherein a first isolation portion is disposed between the first pump shaft bearing and the second chamber, the first isolation portion is provided with a first shaft hole for the pump shaft to pass through, and a water pump water seal is disposed between the first shaft hole and the pump shaft; and an oil seal is arranged on the part of the pump shaft, which is positioned between the water pump water seal and the first pump shaft bearing.
The water pump assembly as described above, wherein a first vortex channel is sleeved outside the first chamber, the first vortex channel is communicated with the first chamber, and the first outlet is disposed on the first vortex channel; and a second vortex passage is sleeved on the outer side of the second cavity and communicated with the second cavity, and a second outlet is formed in the second vortex passage.
The water pump assembly as described above, wherein the first chamber and the second chamber are separated by a second partition, the second partition is provided with a second shaft hole for the pump shaft to pass through, a sealing ring is arranged in the second shaft hole, and the pump shaft passes through the sealing ring.
The water pump assembly as described above, wherein the area of the first inlet is larger than the area of the second inlet, and the area of the first outlet is larger than the area of the second outlet.
The water pump assembly as described above, wherein the first inlet is connected to the first water inlet pipe through a flange.
The water pump assembly as described above, wherein a driving gear is disposed at an end of the pump shaft away from the first chamber.
The water pump assembly as described above, wherein the first impeller and the second impeller are both closed impellers.
The embodiment of the utility model also provides an engine, including the water pump assembly as described above, a high temperature cooling pipeline and a low temperature cooling pipeline, wherein the first outlet of the water pump assembly is communicated with the high temperature cooling pipeline to form a high temperature cooling system; and a second outlet of the water pump assembly is communicated with the low-temperature cooling pipeline to form a low-temperature cooling system. Since the engine comprises the water pump assembly, the engine also has the advantages of the water pump assembly, and reference can be made to the related description of the water pump assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of a water pump assembly according to an embodiment of the present invention;
fig. 2 is an exploded view of a water pump assembly according to an embodiment of the present invention.
Description of reference numerals:
1: a pump body; 2: a pump housing;
3: a pump shaft; 4: a first chamber;
41: a first inlet; 42: a first outlet;
5: a second chamber; 51: a second inlet;
52: a second outlet; 6: a first impeller;
7: a second impeller; 8: a first pump shaft bearing;
9: a second pump shaft bearing; 10: a first isolation section;
11: water seal of the water pump; 12: oil sealing;
13: a third chamber; 14: an oil spray hole;
15: a first scroll; 16: a second scroll;
17: a second isolation portion; 18: a seal ring;
19: a flange; 20: an O-shaped ring;
21: the gears are driven.
Detailed Description
The cooling system generally used includes a high-temperature cooling system and a low-temperature cooling system, the high-temperature cooling system cools the relatively high-temperature components such as the cylinder sleeve and the cylinder head, and the low-temperature cooling system cools the relatively low-temperature components such as the intercooler and the oil cooler. The high-temperature cooling system needs a corresponding high-temperature water pump, the low-temperature cooling system needs a corresponding low-temperature water pump, and the high-temperature water pump and the low-temperature water pump are mutually independent, so that the high-temperature water pump and the low-temperature water pump occupy larger space, and the cooling system occupies larger space.
To the above problem, the embodiment of the utility model provides a through setting up pump case and pump body coupling formation mutually independent first cavity and second cavity, make first cavity, axis of rotation and first impeller form high temperature water pump, make second cavity, axis of rotation and second impeller form low temperature water pump, make the utility model provides a water pump assembly has integrateed high temperature water pump and low temperature water pump to the space that high temperature water pump and low temperature water pump occupy has been reduced, and then the space that cooling system occupy has been reduced.
In order to make the above objects, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, a water pump assembly provided by the embodiment of the present invention includes a pump body 1, a pump case 2 and a pump shaft 3, wherein the pump case 2 is connected with the pump body 1 to form a first chamber 4 and a second chamber 5 which are independent of each other, the pump shaft 3 is inserted into the pump body 1 and the pump case 2, and the pump shaft 3 passes through the first chamber 4 and the second chamber 5; the first chamber 4 is provided with a first inlet 41 and a first outlet 42, and the second chamber 5 is provided with a second inlet 51 and a second outlet 52; the portion of the pump shaft 3 located in the first chamber 4 is provided with a first impeller 6 and the portion of the pump shaft 3 located in the second chamber 5 is provided with a second impeller 7.
The first chamber 4, the pump shaft 3 and the first impeller 6 form a first water pump, and the first water pump can be a high-temperature water pump for providing power for a high-temperature cooling system or a low-temperature water pump for providing power for a low-temperature cooling system; the second chamber 5, the pump shaft 3 and the second impeller 7 form a second water pump, and the second water pump can be a high-temperature water pump for providing power for a high-temperature cooling system or a low-temperature water pump for providing power for a low-temperature cooling system; the concrete conditions are selected according to actual needs, for example, in this embodiment, the first water pump is a high-temperature water pump, and the second water pump is a low-temperature water pump.
When the pump shaft 3 rotates, the first impeller 6 arranged on the pump shaft 3 rotates along with the pump shaft, so that the cooling liquid flows into the first chamber 4 from the first inlet 41 and flows into the high-temperature cooling pipeline from the first outlet 42 to cool relatively high-temperature components such as a cylinder sleeve and a cylinder cover; at the same time, the second impeller 7 disposed on the pump shaft 3 also starts to rotate, so that the coolant flows into the second chamber 5 from the second inlet 51 and flows into the low-temperature cooling pipe from the second outlet 52, thereby cooling relatively low-temperature components such as the intercooler and the engine oil cooler.
Compare and set up independent high temperature water pump and low temperature water pump, the embodiment of the utility model provides a high temperature water pump and low temperature water pump have been integrated on the water pump assembly, have reduced the space that high temperature water pump and low temperature water pump occupy for cooling system's structure is more compact, thereby has reduced cooling system's occupation space.
As shown in fig. 1, the embodiment of the utility model provides a water pump assembly includes the pump body 1, and the interval is provided with two bearing mounting holes in the pump body 1, and two bearing mounting holes are close to the left and right sides of the pump body 1 respectively, are provided with first pump shaft bearing 8 and second pump shaft bearing 9 in two bearing mounting holes. Specifically, the first pump shaft bearing 8 is disposed in a bearing mounting hole near the left side of the pump body 1, and the second pump shaft bearing 9 is disposed in a bearing mounting hole near the right side of the pump body 1.
The first pump shaft bearing 8 may be one of different types of bearings such as a cylindrical roller bearing, a self-aligning roller bearing, a deep groove ball bearing, and the like, and the specific situation is selected according to actual needs, for example, in this embodiment, the first pump shaft bearing 8 is a cylindrical roller bearing. The second pump shaft bearing 9 may be one of different types of bearings such as a cylindrical roller bearing, a self-aligning roller bearing, a deep groove ball bearing, and the like, and the specific situation is selected according to actual needs, for example, in this embodiment, the second pump shaft bearing 9 is a self-aligning roller bearing.
The pump shaft 3 is mounted on the first pump shaft bearing 8 and the second pump shaft bearing 9, a first isolation part 10 is arranged between the first pump shaft bearing 8 and the second chamber 5, a first shaft hole for the pump shaft 3 to pass through is formed in the first isolation part 10, and a water pump water seal 11 is arranged between the first shaft hole and the pump shaft 3; specifically, a part of the water pump water seal 11 is located in the first shaft hole, and the other part is located in the second chamber 5. By the arrangement, the cooling liquid in the second chamber 5 can be prevented from entering the first pump shaft bearing 8, and the sealing performance of the water pump assembly is improved. And a part of the water pump water seal 11 is positioned in the second chamber 5, so that the water pump water seal 11 is fully contacted with the cooling liquid, the heat dissipation of the water pump water seal 11 is facilitated, and the situation that the water pump water seal 11 cannot work normally due to water shortage can be avoided.
The part of the pump shaft 3 between the water pump water seal 11 and the first pump shaft bearing 8 is provided with an oil seal 12, and by arranging the oil seal 12, lubricating oil at the first pump shaft bearing 8 can be prevented from entering the second chamber 5, so that the sealing performance of the water pump assembly is improved.
A third chamber 13 and an oil injection hole 14 are formed in the pump body 1, the third chamber 13 is located between the two bearing mounting holes, and the oil injection hole 14 is communicated with the third chamber 13 and an oil inlet pipe. After flowing into the third chamber 13 from the oil spout hole 14, the lubricating oil in the oil inlet pipe enters the first pump shaft bearing 8 and the second pump shaft bearing 9 under the action of the pump shaft 3, and lubricates the first pump shaft bearing 8 and the second pump shaft bearing 9. The lowest position of the pump body 1 is also provided with an oil drain hole which is used for regularly discharging deteriorated lubricating oil in the pump body 1, so that the normal work of the pump body 1 is ensured.
The embodiment of the utility model provides a water pump assembly still includes pump case 2, and pump case 2 is connected with pump body 1 and is formed mutually independent first cavity 4 and second cavity 5. The outer side of the first cavity 4 is sleeved with a first vortex passage 15, the first vortex passage 15 is communicated with the first cavity 4, and a first outlet 42 is arranged on the first vortex passage 15; the outer side of the second chamber 5 is sleeved with a second vortex passage 16, the second vortex passage 16 is communicated with the second chamber 5, and a second outlet 52 is arranged on the second vortex passage 16.
Set up like this for the coolant liquid can radially get into first vortex way 15 and second vortex way 16 respectively through the back with higher speed of first impeller 6 and second impeller 7, has avoided the speed loss that the collision of coolant liquid and water pump assembly inner wall caused, thereby has improved high temperature cooling system and low temperature cooling system's coolant liquid velocity of flow, thereby has improved cooling efficiency. The first impeller 6 and the second impeller 7 will be described later.
The first chamber 4 and the second chamber 5 are separated by a second isolation portion 17, the second isolation portion 17 is provided with a second shaft hole for the pump shaft 3 to pass through, a sealing ring 18 is arranged in the second shaft hole, and the pump shaft 3 passes through the sealing ring 18. The number of the sealing rings 18 can be 1, 2, 3, etc., and the specific situation is selected according to the actual requirement, for example, in the present embodiment, the number of the sealing rings 18 is two, the two sealing rings 18 have the same structure, and the two sealing rings 18 are arranged in opposite directions. By providing the seal ring 18, the sealing performance at the second axial hole can be enhanced.
The first chamber 4 is provided with a first inlet 41 and a first outlet 42, and the second chamber 5 is provided with a second inlet 51 and a second outlet 52. In a particular embodiment, the first inlet 41, the first outlet 42 and the second outlet 52 are provided on the pump housing 2, and the second inlet 51 is provided on the pump body 1. The area of the first inlet 41 is larger than that of the second inlet 51, and the area of the first outlet 42 is larger than that of the second outlet 52. By the arrangement, the flow of the cooling liquid in the high-temperature water pump can be higher than that of the cooling liquid in the low-temperature water pump, so that the cooling system can cool high-temperature parts and low-temperature parts of the engine more reasonably.
The first inlet 41 is connected to the first inlet pipe, and specifically, the first inlet 41 is connected to the first inlet pipe through the flange 19. By the arrangement, when the caliber of the first water inlet pipe is changed, the caliber of the first inlet 41 does not need to be changed, and only the structure of the flange 19 needs to be adjusted, so that the modification cost is reduced, and the application range of the water pump assembly is enlarged; and the flange 19 can protect the pump shell 2 structure at the first inlet 41, so that the service life of the water pump assembly is prolonged. An O-ring 20 is disposed between the flange 19 and the first inlet 41 to improve the sealing performance at the connection between the flange 19 and the first inlet 41. Similarly, the second inlet 51 is connected to the second water inlet pipe by a flange, which is not described herein.
The lowest part of the pump shell 2 is also provided with a water drainage hole, and the cooling liquid in the water pump assembly can be discharged through the water drainage hole, so that the shutdown maintenance of the water pump assembly is facilitated; and when the water pump assembly is not used for a long time, the water pump assembly can be prevented from rusting.
The embodiment of the utility model provides a water pump assembly still includes pump shaft 3, and pump shaft 3 wears to locate the pump body 1 and pump case 2, and pump shaft 3 passes first cavity 4 and second cavity 5. The portion of the pump shaft 3 located in the first chamber 4 is provided with a first impeller 6 and the portion of the pump shaft 3 located in the second chamber 5 is provided with a second impeller 7.
The first impeller 6 and the second impeller 7 may be one of an open impeller, a closed impeller, and a semi-open impeller, and the specific conditions are selected according to actual needs, as shown in fig. 2, in this embodiment, the first impeller 6 and the second impeller 7 are closed impellers.
The end with the larger radius in the first impeller 6 is arranged opposite to the first scroll 15, and the end with the larger radius in the first impeller 6 is close to the second isolating part 17; the end of the second impeller 7 with the larger radius is disposed opposite to the second scroll 16, while the end of the second impeller 7 with the larger radius is close to the second partition 17. By the arrangement, the distance between the first vortex passage 15 and the second vortex passage 16 is reduced, so that the structure of the water pump assembly is more compact.
The end of the pump shaft 3 far away from the first chamber 4 is further provided with a driving gear 21, and the driving gear 21 is connected with a transmission component of the engine and used for providing power for the water pump assembly. When the transmission component transmits power to the driving gear 21, the driving gear 21 rotates to drive the pump shaft 3 to rotate, so that the first impeller 6 and the second impeller 7 arranged on the pump shaft 3 rotate, and therefore the cooling liquid in the high-temperature water pump and the cooling liquid in the low-temperature water pump are driven to flow, and different components of the engine are cooled.
The embodiment of the utility model provides an engine is still provided, including high temperature cooling pipeline, cryogenic cooling pipeline and above-mentioned embodiment the water pump assembly. The first outlet 42 of the water pump assembly is communicated with a high-temperature cooling pipeline to form a high-temperature cooling system; the second outlet 52 of the water pump assembly is communicated with a low-temperature cooling pipeline to form a low-temperature cooling system. Since the engine comprises the water pump assembly, the engine also has the advantages of the water pump assembly, and reference can be made to the related description of the water pump assembly.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present specification, references to "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A water pump assembly, comprising: the pump shaft penetrates through the pump body and the pump shell, and the pump shaft penetrates through the first chamber and the second chamber;
the first chamber is provided with a first inlet and a first outlet, and the second chamber is provided with a second inlet and a second outlet;
the part of the pump shaft, which is positioned in the first chamber, is provided with a first impeller, and the part of the pump shaft, which is positioned in the second chamber, is provided with a second impeller.
2. The water pump assembly of claim 1, wherein two pump shaft mounting holes are spaced apart in the pump body, a first pump shaft bearing and a second pump shaft bearing are disposed in the two pump shaft mounting holes, and the pump shaft is mounted on the first pump shaft bearing and the second pump shaft bearing.
3. The water pump assembly according to claim 2, wherein a first isolation portion is arranged between the first pump shaft bearing and the second chamber, the first isolation portion is provided with a first shaft hole for the pump shaft to pass through, and a water pump water seal is arranged between the first shaft hole and the pump shaft;
and an oil seal is arranged on the part of the pump shaft, which is positioned between the water pump water seal and the first pump shaft bearing.
4. The water pump assembly according to claim 1, wherein a first vortex passage is sleeved outside the first chamber, the first vortex passage is communicated with the first chamber, and the first outlet is arranged on the first vortex passage;
and a second vortex passage is sleeved on the outer side of the second cavity and communicated with the second cavity, and a second outlet is formed in the second vortex passage.
5. The water pump assembly as recited in claim 4, wherein the first chamber is separated from the second chamber by a second spacer, the second spacer defining a second axial bore through which the pump shaft passes, a seal ring being disposed within the second axial bore, and the pump shaft passing through the seal ring.
6. The water pump assembly as recited in claim 4, wherein the first inlet has an area that is greater than an area of the second inlet, and the first outlet has an area that is greater than an area of the second outlet.
7. The water pump assembly as recited in claim 6, wherein the first inlet is flanged to the first inlet pipe.
8. The water pump assembly as recited in claim 1, wherein an end of the pump shaft distal from the first chamber is provided with a drive gear.
9. The water pump assembly as recited in claim 1, wherein the first impeller and the second impeller are shrouded impellers.
10. An engine comprising a water pump assembly according to any one of claims 1 to 9 and a high temperature cooling circuit and a low temperature cooling circuit, the first outlet of the water pump assembly being in communication with the high temperature cooling circuit to form a high temperature cooling system; and a second outlet of the water pump assembly is communicated with the low-temperature cooling pipeline to form a low-temperature cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022037744.4U CN213235205U (en) | 2020-09-16 | 2020-09-16 | Water pump assembly and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022037744.4U CN213235205U (en) | 2020-09-16 | 2020-09-16 | Water pump assembly and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235205U true CN213235205U (en) | 2021-05-18 |
Family
ID=75874146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022037744.4U Active CN213235205U (en) | 2020-09-16 | 2020-09-16 | Water pump assembly and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213235205U (en) |
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2020
- 2020-09-16 CN CN202022037744.4U patent/CN213235205U/en active Active
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