CN213235562U - Water pump, engine and car - Google Patents
Water pump, engine and car Download PDFInfo
- Publication number
- CN213235562U CN213235562U CN202021994762.5U CN202021994762U CN213235562U CN 213235562 U CN213235562 U CN 213235562U CN 202021994762 U CN202021994762 U CN 202021994762U CN 213235562 U CN213235562 U CN 213235562U
- Authority
- CN
- China
- Prior art keywords
- water
- pump
- water pump
- pumping chamber
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a water pump, engine and car relates to car technical field. The water pump comprises a pump body and a one-way valve, a water pumping chamber and a flow channel communicated with a water inlet of the water pumping chamber are enclosed by the wall of the cavity in the pump body, and the bottom of the water pumping chamber is also communicated with the flow channel through a water drainage hole in the wall of the cavity; a one-way valve is arranged in the water discharge hole and used for discharging water in the water pressing chamber into the flow channel under preset pressure; the engine comprises an engine body and a water pump; the vehicle includes an engine. The utility model provides a water pump, engine and car through set up the check valve in the hole that drains for the check valve is opened under predetermineeing pressure when water pump stop work, with the water discharge runner of pumping chamber, has avoided the water pump during operation hole that drains to be in the water pressure difference of runner and pumping chamber and has taken place the cavitation, thereby has improved the life of water pump.
Description
Technical Field
The utility model relates to the technical field of automobiles, especially, relate to a water pump, engine and car.
Background
The water pump is a key component in the cooling system of the automobile engine. The water pump is driven by a belt to forcibly circulate cooling water, so that redundant heat which cannot be converted into effective work is taken away in time, and the engine parts are ensured to work under a proper temperature condition. When the engine stops working, cooling water in the cooling system needs to be discharged, and the impeller is prevented from being blocked due to freezing of the cooling water in a low-temperature environment.
In the prior art, a pumping chamber and a flow channel communicated with the pumping chamber are arranged inside a pump body of a water pump, and a water drainage hole is formed in the bottom of the pump body and communicated with the flow channel. When the engine stops working, the cooling water in the cooling system is discharged through the water discharge hole.
However, when the water pump is operated, cavitation may occur at the discharge hole due to a large water pressure difference between the pumping chamber and the flow passage, thereby reducing the life of the water pump.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water pump, engine and car to solve the great problem that can take place the cavitation in drain hole department of the water pressure difference between pumping chamber and the water inlet runner of water pump during operation.
In one aspect, the utility model provides a water pump, include: a pump body and a one-way valve;
a water pumping chamber and a flow channel communicated with a water inlet of the water pumping chamber are enclosed by the wall of the pump body, and the bottom of the water pumping chamber is also communicated with the flow channel through a water drainage hole in the wall of the pump body;
and a one-way valve is arranged in the water discharging hole and used for discharging water in the pressurized water chamber into the flow channel under preset pressure.
Optionally, the one-way valve includes a driving member and a sealing member connected to the driving member, and the driving member is used for driving the sealing member to approach or move away from the water discharge hole.
Optionally, the driving member is a spring, the sealing member is a steel ball, the spring is located in the water discharge hole, and the steel ball is located at one end of the water discharge hole close to the pumping chamber.
Optionally, the water pump further comprises a guide member, the guide member is mounted at one end of the water discharge hole close to the pressurized water chamber, and the steel ball is located in the guide member, so that the steel ball moves along the extending direction of the water discharge hole.
Optionally, the driving member is a moving rod, the sealing member is a connecting plate, the moving rod is located in the water discharging hole, and the connecting plate is located at one end of the water discharging hole close to the pumping chamber.
Optionally, the travel bar is a threaded bar.
Optionally, a steel sleeve is sleeved in one end of the water discharge hole close to the water pumping chamber.
Optionally, the pump further comprises a pump shaft, an impeller and a belt pulley; the pump shaft is installed on the pump body through a bearing, the impeller is installed at one end of the pump shaft, the belt pulley is installed at the other end of the pump shaft, the impeller is located in the pump body, and the belt pulley is located outside the pump body.
On the other hand, the utility model provides an engine, which comprises an engine body and the water pump;
the water pump is connected with the engine body through a belt.
In another aspect, the present invention provides an automobile, including the engine described above.
The utility model provides a water pump, an engine and an automobile, which comprises a pump body and a one-way valve; a water pumping chamber and a flow channel communicated with a water inlet of the water pumping chamber are enclosed by the wall of the inner cavity of the pump body, and the bottom of the water pumping chamber is also communicated with the flow channel through a water drainage hole on the wall of the cavity; the water discharge hole is internally provided with a one-way valve which is used for discharging water in the water pressing chamber into the flow passage under the preset pressure. The utility model provides a water pump, engine and car through set up the check valve in the hole that drains for the check valve is opened under predetermineeing pressure when the water pump stop work, makes the water discharge runner of pumping chamber, has avoided the water pump during operation hole that drains to be in the water pressure difference of runner and pumping chamber and has taken place the cavitation, thereby has improved the life of water pump.
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 inventive labor.
Fig. 1 is a schematic structural diagram of a water pump provided by the present invention;
FIG. 2 is a schematic structural view of a cross section A-A in FIG. 1;
FIG. 3 is a schematic view of the check valve of FIG. 1;
fig. 4 is a schematic view of an assembly structure of the pump shaft, the impeller and the pulley in fig. 1.
Description of reference numerals:
1-a water pump;
10-a pump body;
11-a water pumping chamber;
12-a flow channel;
13-a water discharge hole;
20-a one-way valve;
21-a drive member;
22-a seal;
23-a guide;
30-a pump shaft;
40-an impeller;
50-belt pulley.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description above, references to the description of the term "one embodiment," "some embodiments," "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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The water pump is a key component in the cooling system of the automobile engine. The water pump is driven by a belt to forcibly circulate cooling water, so that redundant heat which cannot be converted into effective work is taken away in time, and the engine parts are ensured to work under a proper temperature condition. When the engine stops working, cooling water in the cooling system needs to be discharged, and the impeller is prevented from being blocked due to freezing of the cooling water in a low-temperature environment. In the prior art, a pumping chamber and a flow channel communicated with the pumping chamber are arranged inside a pump body of a water pump, and a water drainage hole is formed in the bottom of the pump body and communicated with the flow channel. When the engine stops working, the cooling water in the cooling system is discharged through the water discharge hole. However, when the water pump is operated, cavitation may occur due to a large water pressure difference between the pumping chamber and the drain hole, thereby reducing the life of the water pump.
In order to solve the problem, the utility model provides a water pump, engine and car is through setting up the check valve in the hole that drains for the check valve is opened under pressure of predetermineeing when the water pump stop work, and with the water discharge runner of pressurized-water chamber, avoided the water pump during operation hole that drains to be in the water pressure difference of runner and pressurized-water chamber and has taken place the cavitation, thereby improved the life of water pump.
The following describes the water pump, the engine, and the vehicle provided by the present invention in detail with reference to the specific embodiments.
Fig. 1 is a schematic structural diagram of a water pump provided by the present invention; FIG. 2 is a schematic structural view of a cross section A-A in FIG. 1; FIG. 3 is a schematic view of the check valve of FIG. 1; fig. 4 is a schematic view of an assembly structure of the pump shaft, the impeller and the pulley in fig. 1.
As shown in fig. 1 to 4, the present invention provides a water pump 1, which includes a pump body 10 and a check valve 20; a pressurized water chamber 11 and a flow channel 12 communicated with a water inlet of the pressurized water chamber 11 are enclosed by the cavity wall inside the pump body 10, and the bottom of the pressurized water chamber 11 is also communicated with the flow channel 12 through a water drainage hole 13 on the cavity wall; a check valve 20 is provided in the discharging hole 13, and the check valve 20 is used to discharge water of the pumping chamber 11 into the flow passage 12 at a preset pressure.
Wherein, an impeller 40 is also arranged in the pumping chamber 11. When the water pump 1 works, energy is transferred by the interaction of the impeller and the cooling water. A water discharge hole 13 is arranged on the cavity wall at the bottom of the water pressing chamber 11. When the water pump 1 stops working, the cooling water in the cooling system can be discharged through the water discharging hole 13, so that the impeller 40 is prevented from being blocked due to freezing of the cooling water in a low-temperature environment.
When the water pump 1 works, cavitation can occur due to a large water pressure difference between the water pressure chamber 11 and the flow passage 12. The one-way valve 20 is arranged in the water drainage hole 13, so that the water drainage hole 13 is closed when the water pump 1 works, and the one-way valve 20 is opened to drain water in the pressurized water chamber 11 into the flow passage 12 under the preset pressure when the water pump 1 stops working, thereby avoiding cavitation when the water drainage hole 13 is positioned under the water pressure difference between the flow passage 12 and the pressurized water chamber 11 when the water pump 1 works, and further reducing the cavitation failure rate of the water pump 1.
It should be noted that when the local pressure drops to the critical pressure (generally close to the vaporization pressure), the liquid generates bubbles, and when the bubbles enter the high-pressure region along with the flowing liquid, the bubbles are suddenly broken under pressure, so that the surrounding liquid is supplemented to the high-pressure region, and the hydraulic impact is caused, which is called cavitation. The instability of the cavitation process can cause the water pump 1 to vibrate and generate noise, and simultaneously, the flow and the lift are reduced because the air bubbles block the channel of the impeller when the cavitation occurs. Therefore, the one-way valve 20 is arranged in the water discharge hole 13, so that the water discharge hole 13 is prevented from cavitation under the water pressure difference of the flow channel 12 and the pressurized water chamber 11 when the water pump 1 works, and the cavitation failure rate of the water pump 1 is reduced.
It should be noted that when the water pump 1 stops, the check valve 20 opens at a preset pressure to discharge the water from the pumping chamber 11 into the channel 12, thereby discharging the cooling water when the water pump 1 stops.
The utility model provides a water pump 1 is through setting up check valve 20 in the hole 13 that drains for water pump 1 during stop work check valve 20 is opened the log raft inflow passageway 12 with pumping chamber 11 under preset pressure, has avoided water pump 1 during operation hole 13 that drains to be in runner 12 and pumping chamber 11's water pressure differential and has taken place the cavitation, thereby has improved water pump 1's life.
Optionally, the check valve 20 includes a driver 21 and a seal 22 coupled to the driver 21, the driver 21 being configured to drive the seal 22 toward or away from the discharge orifice 13.
In order to close the water discharge hole 13 when the water pump 1 works and open the water discharge hole 13 when the water pump 1 stops working, the driving member 21 drives the sealing member 22 to close the water discharge hole 13 when the water pump 1 works, and the driving member 21 drives the sealing member 22 to open the water discharge hole 13 when the water pump 1 stops working.
In an alternative embodiment, the driving member 21 may be a spring, and the sealing member 22 may be a steel ball, and the spring is located in the discharging hole 13, and the steel ball is located at one end of the discharging hole 13 close to the pumping chamber 11. When the water pump 1 works, the water pressure in the water pressing chamber 11 is increased to be larger than the pressure of the spring, and the water discharging hole 13 is closed by the steel ball; when the water pump 1 stops working, the water pressure in the pressurized-water chamber 11 is lower than the pressure of the spring, and the spring overcomes the water pressure in the pressurized-water chamber 11, so that the steel ball opens the water drainage hole, and the water in the pressurized-water chamber 11 is drained.
It should be noted that, in order to ensure that the steel ball seals the water discharge hole 13 when the water discharge hole 13 is closed, a guide 23 is installed at one end of the water discharge hole 13 close to the pumping chamber 11, and the steel ball is located in the guide 23, so that the steel ball moves along the extending direction of the water discharge hole 13, and the water discharge hole 13 can be sealed when the steel ball closes the water discharge hole 13.
In another alternative embodiment, the driving member 21 may be a movable rod, and the sealing member 22 is a connecting plate, and the movable rod is located in the discharging hole 13, and the connecting plate is located at one end of the discharging hole 13 close to the pumping chamber 11. When the water pump 1 works, the movable rod is driven manually, so that the water discharge hole 13 is closed by the connecting plate; when the water pump 1 stops working, the moving rod is manually driven, so that the connecting plate opens the water discharging hole, and water in the pumping chamber 11 is discharged.
It should be noted that the movable rod may be a hollow rod, and when the connection plate opens the water discharge hole by manually driving the movable rod, the water in the pumping chamber 11 is discharged from the hollow cavity of the movable rod. In other implementation manners, the carriage release lever also can be the solid core pole, and the cross-sectional area of carriage release lever is less than the cross-sectional area of the hole 13 that drains, through the manual drive carriage release lever for when the connecting plate will drain the hole and open, the water in the pumping chamber 11 is discharged from between hole 13 and the carriage release lever that drains, here the utility model discloses do not specifically set up.
Optionally, a steel sleeve is sleeved in one end of the water discharge hole 13 close to the pumping chamber 11.
Wherein, in order to improve the anti-cavitation capability of one end of the water discharge hole 13 close to the water pumping chamber 11, a steel sleeve is sleeved in the end. The steel bushing can be made of materials such as Q235 steel, Q50 steel, and the utility model discloses do not do specifically and set up here.
Optionally, a pump shaft 30, an impeller 40 and a belt pulley 50; the pump shaft 30 is mounted on the pump body 10 through a bearing, one end of the pump shaft 30 is provided with an impeller 40, the other end of the pump shaft 30 is provided with a belt pulley 50, the impeller 40 is positioned in the pump body 10, and the belt pulley 50 is positioned outside the pump body 10.
In order to realize the reciprocating circulation of the cooling water, the engine drives the belt pulley 50 to rotate through the belt, the belt pulley 50 drives the pump shaft 30 and the impeller 40 to rotate, the cooling water in the pumping chamber 11 is driven by the impeller 40 to rotate together, and is thrown to the edge of the pump body 10 under the action of centrifugal force to generate certain pressure at the same time, and then flows out from the water outlet channel. The pressure of the center of the impeller 40 is reduced because the cooling water is thrown out, and the cooling water in the water tank is sucked into the impeller 40 through the flow channel 12 under the action of the pressure difference between the inlet of the water pump 1 and the center of the impeller 40, so that the reciprocating circulation of the cooling water is realized.
The utility model also provides an engine, which comprises an engine body and a water pump 1; the water pump 1 is connected with the engine body through a belt.
Wherein, the utility model provides a structure of water pump 1 in the engine with above the structure of water pump the same to can bring the same or similar technological effect, no longer give unnecessary details here.
The utility model also provides an automobile, including the engine.
Wherein, the utility model provides an engine in car's structure with above the structure of engine the same to can bring the same or similar technological effect, no longer give unnecessary details here.
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, comprising: a pump body and a one-way valve;
a water pumping chamber and a flow channel communicated with a water inlet of the water pumping chamber are enclosed by the wall of the pump body, and the bottom of the water pumping chamber is also communicated with the flow channel through a water drainage hole in the wall of the pump body;
and a one-way valve is arranged in the water discharging hole and used for discharging water in the pressurized water chamber into the flow channel under preset pressure.
2. The water pump of claim 1, wherein the one-way valve includes a driver and a seal coupled to the driver, the driver configured to drive the seal toward or away from the discharge orifice.
3. The water pump of claim 2, wherein the driving member is a spring, the sealing member is a steel ball, the spring is positioned in the discharge hole, and the steel ball is positioned at one end of the discharge hole close to the pumping chamber.
4. The water pump of claim 3, further comprising a guide member installed at an end of the discharge hole near the pumping chamber, wherein the steel ball is positioned in the guide member so as to move in an extending direction of the discharge hole.
5. The water pump of claim 2, wherein the driving member is a movable rod, the sealing member is a connecting plate, the movable rod is located in the discharge hole, and the connecting plate is located at one end of the discharge hole close to the pumping chamber.
6. The water pump of claim 5, wherein the travel bar is a threaded bar.
7. The water pump according to any one of claims 1 to 6, wherein a steel jacket is sleeved in one end of the water discharge hole close to the pumping chamber.
8. The water pump of any of claims 1-6, further comprising a pump shaft, an impeller, and a pulley; the pump shaft is installed on the pump body through a bearing, the impeller is installed at one end of the pump shaft, the belt pulley is installed at the other end of the pump shaft, the impeller is located in the pump body, and the belt pulley is located outside the pump body.
9. An engine characterized by comprising an engine block and a water pump according to any one of claims 1-8;
the water pump is connected with the engine body through a belt.
10. An automobile comprising the engine of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021994762.5U CN213235562U (en) | 2020-09-11 | 2020-09-11 | Water pump, engine and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021994762.5U CN213235562U (en) | 2020-09-11 | 2020-09-11 | Water pump, engine and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235562U true CN213235562U (en) | 2021-05-18 |
Family
ID=75873124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021994762.5U Active CN213235562U (en) | 2020-09-11 | 2020-09-11 | Water pump, engine and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213235562U (en) |
-
2020
- 2020-09-11 CN CN202021994762.5U patent/CN213235562U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3924730B2 (en) | Self-priming centrifugal pump device | |
| CN213235562U (en) | Water pump, engine and car | |
| CN101603541B (en) | Electric diving pump | |
| CN105508262A (en) | Multistage cutting and grinding blow-down pump | |
| CN112460070B (en) | Water pump | |
| CN216200002U (en) | Hydraulic retarder lubricating system | |
| CN217632911U (en) | Anti-overheating vane pump | |
| CN111206664B (en) | Pressurizing and draining system | |
| CN113790233A (en) | Hydraulic retarder lubricating system | |
| CN210676898U (en) | Cooling structure for low-pressure casting of hub | |
| CN201461460U (en) | Submersible motor pump | |
| CN221033307U (en) | Cavitation-proof multistage pump | |
| CN219605577U (en) | Pump body with high pressure resistance | |
| CN211692845U (en) | Fire control vacuum diversion device | |
| CN219452413U (en) | Centrifugal pump with high stability | |
| CN216894919U (en) | First-stage double-suction impeller structure for multi-stage pump | |
| CN111255760A (en) | Pipeless hydraulic device | |
| CN211397898U (en) | High-efficient water ring vacuum pump | |
| CN110131211A (en) | A kind of centrifugal pump body and centrifugal pump | |
| CN219888279U (en) | Module combined high-speed self-priming centrifugal pump | |
| CN216861769U (en) | Online trompil sealing equipment of boats and ships waterline below cabin wall | |
| CN102536968A (en) | Cooling protective device of hydraumatic reversing system | |
| US342696A (en) | Force-pump | |
| CN219300852U (en) | Two-level network heating system | |
| CN220037030U (en) | Impeller for centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |