CN212508582U - Engine water injection system - Google Patents
Engine water injection system Download PDFInfo
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- CN212508582U CN212508582U CN202021239255.0U CN202021239255U CN212508582U CN 212508582 U CN212508582 U CN 212508582U CN 202021239255 U CN202021239255 U CN 202021239255U CN 212508582 U CN212508582 U CN 212508582U
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Abstract
The utility model discloses an engine water injection system, which belongs to the technical field of vehicle engines and comprises a water tank, a water inlet, a water outlet and a water return port, wherein the water tank comprises the water outlet and the water return port which are arranged at intervals; the inlet of the water spraying device is communicated with the water outlet through a main outlet pipeline, and a water spraying port of the water spraying device is used for spraying water to the engine; one end of the backflow device is communicated with an outlet of the water spraying device, and the other end of the backflow device is communicated with the water return port through a main return pipeline; and the inflation device is communicated with the main outlet pipeline through an inflation pipe and is used for inflating compressed gas to the main outlet pipeline through the inflation pipe so that the compressed gas pushes the main outlet pipeline and water in the water spraying device to enter the water tank through the backflow device and the main return pipeline. The utility model relates to an engine water injection system can reduce the probability of the water seepage to the engine in among the engine water injection system to avoid the engine to rust, prolonged the life of engine.
Description
Technical Field
The utility model relates to a vehicle engine technical field especially relates to an engine water injection system.
Background
At present, the requirements for oil consumption and emission of an engine are increasingly strict, so that the emission and the fuel consumption of the engine need to be reduced on the premise of ensuring the dynamic property of the engine when the engine is manufactured. The increase of the compression ratio and the supercharging degree of the engine can cause the engine to generate knocking tendency and affect the reliable durability of each part in the engine.
In the prior art, the knocking tendency of an engine is inhibited by a mode of spraying water to the engine so as to improve the fuel economy of the engine. For example, a water injection system is typically provided that injects water into the engine. However, when the engine and the water injection system stop working, water remaining in the water injection system leaks into the air intake system of the engine along the water injector, so that the risk of water inflow exists in the combustion chamber of the engine, further the engine is easily rusted, and the service life of the engine is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an engine water injection system can reduce the probability of the water seepage to the engine among the engine water injection system to avoid the engine to rust, prolonged the life of engine.
As the conception, the utility model adopts the technical proposal that:
an engine water injection system comprising:
the water tank comprises water outlets and water return ports which are arranged at intervals;
the inlet of the water spraying device is communicated with the water outlet through a main outlet pipeline, and a water spraying port of the water spraying device is used for spraying water to the engine;
one end of the backflow device is communicated with an outlet of the water spraying device, and the other end of the backflow device is communicated with the water return port through a main return pipeline;
and the inflation device is communicated with the main outlet pipeline through an inflation pipe and is used for inflating compressed gas to the main outlet pipeline through the inflation pipe so that the compressed gas pushes the main outlet pipeline and water in the water spraying device to enter the water tank through the backflow device and the main return pipeline.
Optionally, the water injector includes a water sprayer and a common rail cavity, the common rail cavity is respectively communicated with the main outlet pipe, an inlet of the water sprayer and the main return pipe, a water spray nozzle of the water sprayer is used for spraying water to the engine, an outlet of the water sprayer is communicated with the backflow device, and the common rail cavity adjusts the water pressure provided to the water sprayer and the stability of the water pressure.
Optionally, a water pressure sensor is arranged on the common rail cavity and used for detecting water pressure in the common rail cavity.
Optionally, the backflow device includes a pressure stabilizing cavity and a first electric valve, the pressure stabilizing cavity is communicated with the outlet of the sprinkler through a first pipeline, the pressure stabilizing cavity is communicated with the main return pipeline through a second pipeline, and the first electric valve is disposed on the second pipeline.
Optionally, the common rail device further comprises a first three-way pipe and a second electrically operated valve, the first three-way pipe and the second electrically operated valve are both arranged on the main return pipeline, the second electrically operated valve is located between the common rail cavity and the first three-way pipe, and the second pipeline is communicated with the main return pipeline through the first three-way pipe.
Optionally, the system further comprises a first check valve disposed on the main return line and located between the water tank and the first tee pipe, wherein the first check valve is configured to prevent water or the compressed gas in the water tank from flowing back into the main return line.
Optionally, the inflation device includes an air source, and a third electric valve and a second one-way valve both disposed on the inflation tube, and the second one-way valve is located between the third electric valve and the main outlet line.
Optionally, the water tank further comprises a gas exhaust structure arranged on the top of the water tank, wherein the gas exhaust structure is used for exhausting the compressed gas in the water tank.
Optionally, the water pump further comprises a second tee pipe for communicating the main outlet pipe and the inflation pipe, and a filter and an electric water pump which are arranged between the water outlet and the second tee pipe, wherein the electric water pump is arranged between the second tee pipe and the filter.
Optionally, the water pressure sensor, the first electric valve, the second electric valve, the third electric valve and the electric water pump are respectively connected to an electronic control device, and the electronic control device is used for controlling the start and stop of the water pressure sensor, the first electric valve, the second electric valve, the third electric valve and the electric water pump.
The beneficial effects of the utility model include at least:
the utility model provides an engine water injection system, through setting up aerating device and reflux unit, and to filling compressed gas in giving first place to pipeline and the water jet equipment, make compressed gas can promote the water flow in the main pipeline water jet equipment, water stops in water jet equipment and main play pipeline after having prevented engine water injection system from stopping to spray water, the probability of water seepage to in the engine among the engine water injection system has been reduced, thereby avoided the engine to rust, the life of engine has been prolonged.
And the provided engine water injection system is simple in structure and convenient to install.
Drawings
Fig. 1 is a schematic structural diagram of an engine water injection system according to an embodiment of the present invention.
In the figure:
1. a water tank; 2. a water outlet; 3. a water return port; 4. a main outlet pipe; 5. a primary return line; 6. a water sprayer; 7. a common rail cavity; 8. a water pressure sensor; 9. a pressure stabilizing cavity; 10. a first electrically operated valve; 11. a first three-way valve; 12. a second electrically operated valve; 13. a first one-way valve; 14. a gas source; 15. a third electrically operated valve; 16. a second one-way valve; 17. an exhaust structure; 18. a second three-way pipe; 19. a filter; 20. an electric water pump; 21. an electronic control device; 22. a three-way pipe; 1a gas-filled tube 1 a; 1b, a first pipeline; 1c, a second pipeline; 1d and a third pipeline.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The implementation provides an engine water injection system, which can prevent water from being retained in the engine water injection system so as to prolong the service life of an engine.
As shown in FIG. 1, the engine water injection system comprises a water tank 1, a water injection device, a backflow device and an air charging device.
The water tank 1 comprises a water outlet 2 and a water return port 3 which are arranged at intervals, wherein the water outlet 2 is positioned at the bottom of the water tank 1 and is used for supplying water to a water spraying device when an engine water spraying system works; a return 3 is located at the top of the tank 1 for recovering the water and compressed gas flowing back from the return.
The inlet of the water spraying device is communicated with the water outlet 2 through the main outlet pipeline 4, the water spraying port of the water spraying device is used for spraying water to the engine so as to inhibit the detonation tendency of the engine, and the outlet of the water spraying device is communicated with one end of the reflux device. Specifically, the outlet of the water spray device is communicated with one end of the reflux device through a first pipeline 1 b. The other end of the reflux device is communicated with the water return port 3 through a main return pipeline 5, and further, the other end of the reflux device is communicated with the main return pipeline 5 through a second pipeline 1 c.
The inflation device is communicated with the main outlet pipeline 4 through the inflation pipe 1a, and is used for filling compressed gas into the main outlet pipeline 4 through the inflation pipe 1a, so that the compressed gas pushes the main outlet pipeline 4 and water in the water spraying device to enter the water tank 1 through the backflow device and the main return pipeline 5. That is, in the present embodiment, the air charging device and the backflow device are disposed on the original engine water spraying system, so that the water in the water spraying device and the main outlet pipe 4 can be recovered to the water tank 1, and the probability of water staying in the water spraying device is prevented.
The engine water injection system that this embodiment provided, through setting up aerating device and reflux unit, and fill compressed gas in to main exit tube way 4 and the water jet equipment, make compressed gas can promote the water flow in the 4 water jet equipment of main exit tube way, prevented that engine water injection system from stopping the stop of water after spraying water stop the stop of water in water jet equipment and main exit tube way 4, the probability of water seepage to in the engine among the engine water injection system has been reduced, thereby avoided the engine to rust, the life of engine has been prolonged.
And the provided engine water injection system is simple in structure and convenient to install.
Alternatively, as shown in fig. 1, the water injector comprises a water injector 6 and a common rail cavity 7, and the common rail cavity 7 is respectively communicated with the main outlet pipe 4, the inlet of the water injector 6 and the main return pipe 5. The water jet of the water sprayer 6 is used for spraying water to the engine, the outlet of the water sprayer 6 is communicated with the reflux device, and the common rail cavity 7 is used for adjusting the water pressure provided for the water sprayer 6 and the stability of the water pressure. Through being linked together cavity 7 and main return line 5 intercommunication for at the aerating device during operation, partial compressed gas can also promote the water that is located main exit tube way 4, common rail cavity 7 and main return line 5, and then promotes the water in the common rail cavity 7 to in the water tank 1. Wherein, the water sprayer 6 is communicated with the common rail cavity 7 through a third pipeline 1 d.
Further, the water injector may include four water injectors 6, and each water injector 6 is communicated with one tee 22, a first end of each tee 22 is communicated with the common rail cavity 7, a second end of each tee 22 is communicated with the water injector 6, and a third end of each tee 22 is communicated with the return device through the first pipe 1 b.
When the engine water injection system sprays water, the water in the water tank 1 flows into the common rail cavity 7 through the main outlet pipeline 4, and the common rail cavity 7 supplies water to the water sprayer 6 through the third pipeline 1d, the first end of the three-way pipe 22 and the second end of the three-way pipe 22, and the water is sprayed out by the water sprayer 6. When the water injection system of the engine stops injecting water, the air charging device can be controlled to charge compressed air, specifically, air in the air charging device enters the common rail cavity 7 through the air charging pipe 1a and the main outlet pipeline 4, and enters the three-way pipe 22 through the common rail cavity 7 and the third pipeline 1d, so that the compressed air in the three-way pipe 22 enters the first pipeline 1b through the third end of the three-way pipe 22, the other part of the compressed air enters the water sprayer 6 through the second end of the three-way pipe 22, so that water in the water sprayer 6 is driven to enter the first pipeline 1b through the third end of the three-way pipe 22, and the water and the compressed air in the first pipeline 1b flow into the water tank 1 through the second pipeline 1c of the backflow device and the main return pipeline 5.
Optionally, a water pressure sensor 8 is disposed on the common rail cavity 7, and the water pressure sensor 8 is configured to detect the water pressure in the common rail cavity 7.
Further, the return means comprises a surge chamber 9 and a first electrically operated valve 10. Wherein, the pressure stabilizing cavity 9 is communicated with the outlet of the water sprayer 6 through the first pipeline 1b, the pressure stabilizing cavity 9 is communicated with the main return pipeline 5 through the second pipeline 1c, and the first electric valve 10 is arranged on the second pipeline 1 c. The pressure stabilizing cavity 9 is used for stabilizing the water spraying pressure of a water sprayer when the water spraying system of the engine sprays water; when drainage is required, water and compressed gas from the first conduit 1b are directed to the first electrically operated valve 10. The first electrically operated valve 10 is used to control the on/off of the first line 1 b.
Optionally, as shown in fig. 1, the engine water injection system further includes a first tee pipe 11 and a second electrically operated valve 12. Wherein, first three-way pipe 11 and second electric valve 12 all set up on main return line 5, and second electric valve 12 is located between common rail cavity 7 and the first three-way pipe 11, and second pipeline 1c passes through first three-way pipe 11 and main return line 5 intercommunication. That is, the first end and the second end of the first tee pipe 11 are both communicated with the main return pipe 5, and the third end of the first tee pipe 11 is communicated with the second pipe 1 c. The second electrically operated valve 12 is used to control the opening or closing of the primary return line 5.
Further, the engine water injection system further comprises a first one-way valve 13. The first check valve 13 is disposed on the main return pipe 5, the first check valve 13 is located between the water tank 1 and the first three-way pipe 11, and the first check valve 13 is used for preventing water or compressed gas in the water tank 1 from flowing back to the main return pipe 5.
In this embodiment, as shown in fig. 1, the inflation device includes an air source 14, and a third electrically operated valve 15 and a second one-way valve 16 both disposed on the inflation tube 1a, and the second one-way valve 16 is located between the third electrically operated valve 15 and the main output tube 4. Wherein, the air source 14 is used for providing compressed air with certain pressure to the engine water injection system, the third electrically operated valve 15 is used for controlling the on-off of the inflation tube 1a, and the second one-way valve 16 is used for closing and preventing water in the engine water injection system from entering the air source 14 when the engine water injection system injects water during the water discharging operation.
Optionally, the engine water injection system further comprises an exhaust structure 17 disposed at the top of the water tank 1, and the exhaust structure 17 is used for exhausting the compressed gas in the water tank 1 to prevent the pressure in the water tank 1 from being too high. Since both the compressed gas and the water are introduced into the water tank 1, the air discharge structure 17 may be periodically opened to discharge the compressed gas in the water tank 1. Alternatively, the exhaust structure 17 may be opened after the exhaust process is completed to prevent the exhaust structure 17 from affecting the exhaust process.
Optionally, the engine water injection system further comprises a second tee pipe 18 for communicating the main outlet pipe 4 and the charging pipe 1a, and a filter 19 and an electric water pump 20 which are arranged between the water outlet 2 and the second tee pipe 18, wherein the electric water pump 20 is arranged between the second tee pipe 18 and the filter 19. That is, the first end and the second end of the second tee pipe 18 are both communicated with the main outlet pipeline 4, and the third end of the second tee pipe 18 is communicated with the inflation pipe 1 a.
As shown in fig. 1, the engine water injection system further includes an electronic control device 21. The electronic control device 21 is respectively connected with the water pressure sensor 8, the first electric valve 10, the second electric valve 12, the third electric valve 15 and the electric water pump 20, and is used for receiving and controlling the water pressure signal of the water pressure sensor 8 and controlling the start and stop of the first electric valve 10, the second electric valve, the third electric valve and the electric water pump. The electronic control device 21, the water pressure sensor 8, the first electrically operated valve 10, the second electrically operated valve, the third electrically operated valve, and the electric water pump may be connected by a wire or a wireless connection, which is not limited in this embodiment.
Further, the electronic control device 21 is also connected to the sprinkler 6 for controlling the operating state of the sprinkler 6.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An engine water injection system, comprising:
the water tank (1) comprises water outlets (2) and water return ports (3) which are arranged at intervals;
an inlet of the water spraying device is communicated with the water outlet (2) through a main outlet pipeline (4), and a water spraying port of the water spraying device is used for spraying water to the engine;
one end of the reflux device is communicated with an outlet of the water spraying device, and the other end of the reflux device is communicated with the water return port (3) through a main return pipeline (5);
the inflation device is communicated with the main outlet pipeline (4) through an inflation pipe and is used for filling compressed gas into the main outlet pipeline (4) through the inflation pipe so that the compressed gas pushes the main outlet pipeline (4) and water in the water spraying device to enter the water tank (1) through the backflow device and the main return pipeline (5).
2. The engine water injection system according to claim 1, characterized in that the water injector comprises a water injector (6) and a common rail cavity (7), the common rail cavity (7) is respectively communicated with the main outlet pipe (4), the inlet of the water injector (6) and the main return pipe (5), the water injection ports of the water injector (6) are used for injecting water to the engine, the outlet of the water injector (6) is communicated with the return device, and the common rail cavity (7) regulates the water pressure provided to the water injector (6) and the stability of the water pressure.
3. The engine water injection system according to claim 2, characterized in that a water pressure sensor (8) is arranged on the common rail cavity (7), and the water pressure sensor (8) is used for detecting the water pressure in the common rail cavity (7).
4. The engine water injection system according to claim 3, wherein the backflow device comprises a pressure stabilizing chamber (9) and a first electrically operated valve (10), the pressure stabilizing chamber (9) being in communication with the outlet of the water injector (6) via a first line, the pressure stabilizing chamber (9) being in communication with the main return line (5) via a second line, the first electrically operated valve (10) being arranged on the second line.
5. The engine water injection system according to claim 4, further comprising a first tee pipe (11) and a second electrically operated valve (12), wherein the first tee pipe (11) and the second electrically operated valve (12) are both disposed on the main return pipe (5), and the second electrically operated valve (12) is located between the common rail cavity (7) and the first tee pipe (11), and the second pipe is communicated with the main return pipe (5) through the first tee pipe (11).
6. The engine water injection system according to claim 5, characterized by further comprising a first one-way valve (13), wherein the first one-way valve (13) is disposed on the main return pipe (5), and the first one-way valve (13) is located between the water tank (1) and the first tee pipe (11), and the first one-way valve (13) is used for preventing water or the compressed gas in the water tank (1) from flowing back into the main return pipe (5).
7. The engine water injection system according to claim 6, wherein the inflator comprises an air source (14) and a third electrically operated valve (15) and a second one-way valve (16) both arranged on the inflation tube, and the second one-way valve (16) is located between the third electrically operated valve (15) and the main outlet pipe (4).
8. The engine water injection system according to claim 1, further comprising an exhaust structure (17) disposed at a top portion of the water tank (1), the exhaust structure (17) being configured to exhaust the compressed gas in the water tank (1).
9. The engine water injection system according to claim 7, further comprising a second tee (18) for communicating the main outlet pipe (4) and the charging pipe, and a filter (19) and an electric water pump (20) between the water outlet (2) and the second tee (18), the electric water pump (20) being located between the second tee (18) and the filter (19).
10. The engine water injection system according to claim 9, further comprising an electronic control device (21), wherein the electronic control device (21) is connected to the water pressure sensor (8), the first electric valve (10), the second electric valve (12), the third electric valve (15) and the electric water pump (20) respectively, and is configured to receive a water pressure signal from the water pressure sensor (8) and control start and stop of the first electric valve (10), the second electric valve (12), the third electric valve (15) and the electric water pump (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021239255.0U CN212508582U (en) | 2020-06-29 | 2020-06-29 | Engine water injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021239255.0U CN212508582U (en) | 2020-06-29 | 2020-06-29 | Engine water injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212508582U true CN212508582U (en) | 2021-02-09 |
Family
ID=74432297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021239255.0U Active CN212508582U (en) | 2020-06-29 | 2020-06-29 | Engine water injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212508582U (en) |
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2020
- 2020-06-29 CN CN202021239255.0U patent/CN212508582U/en active Active
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