CN212359984U - Fuel pump for engine, engine with fuel pump and vehicle - Google Patents
Fuel pump for engine, engine with fuel pump and vehicle Download PDFInfo
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- CN212359984U CN212359984U CN202020388423.6U CN202020388423U CN212359984U CN 212359984 U CN212359984 U CN 212359984U CN 202020388423 U CN202020388423 U CN 202020388423U CN 212359984 U CN212359984 U CN 212359984U
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Abstract
The utility model discloses an engine and vehicle that is used for fuel pump of engine and has it. The fuel pump for an engine includes: the shell, pump core and draining device, the one end of casing is equipped with the interface that produces oil, the other end of casing is equipped with the oil feed interface, the pump core is connected through the fuel oil pipeline with the interface that produces oil, the draining device is located the fuel oil pipeline and includes the draining branch road of alternative intercommunication fuel oil pipeline and fuel tank, the draining device is connected with the control unit electricity of engine, and the control unit control draining branch road is opened or is closed, when the control unit of engine detects the collision signal, the control unit can control the draining device and open, therefore, the pressure release can be realized to the high pressure fuel in the fuel oil pipeline, reduce the pressure in the fuel oil pipeline after the collision, avoid the fuel to leak in a large number, thereby can reduce whole car collision back fuel oil and leak and cause the conflagration. In addition, the maintainer can also release the pressure of the high pressure in the fuel pipeline by controlling the control unit.
Description
Technical Field
The utility model relates to an engine field particularly, relates to an engine and vehicle that is used for fuel pump of engine and has it.
Background
The current engine has the risk that the engine burns when encountering open fire in order to prevent the fuel pump of the engine from continuously pumping fuel after the vehicle collides, so that when the control unit receives a collision signal, the control unit sends a signal to the engine and the fuel pump to cut off the power supply of the fuel pump and the power supply of the engine at the same time, and the fuel pump and the engine stop working.
However, due to the presence of the check valve inside the fuel pump (for preventing the fuel in the fuel pipeline from flowing back to the fuel tank, so that the pressure in the fuel pipeline is always kept high, and the vehicle can be ignited and started more quickly next time), after the control unit receives a collision signal, the fuel pump and the engine stop working, so that the pressure in the fuel pipeline is still very high, if the collision happens, the fuel pipeline is damaged, the fuel is sprayed out at a high speed due to the high pressure in the fuel pipeline, and when a high-temperature exhaust manifold, an exhaust pipe or an open fire is encountered, the engine still has the risk of fire.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a fuel pump for engine, this fuel pump are equipped with draining device, can carry out the pressure release to the fuel line.
The utility model also provides an engine of having above-mentioned fuel pump for engine.
The utility model also provides a vehicle of having above-mentioned engine.
According to the utility model discloses a fuel pump for engine, the fuel pump includes casing and pump core, the casing forms into the cavity casing, the one end of casing is equipped with out the oil interface, go out the oil interface with the engine links to each other, the other end of casing is equipped with the oil feed interface, the oil feed interface with the fuel tank links to each other, the pump core is located in the casing, the pump core with it is connected through the fuel pipeline to go out the oil interface, the pump core is suitable for with the fuel follow the oil feed interface is pumped out go out the oil interface, the fuel pump includes: the oil drainage device is located on the fuel oil pipeline and comprises a selectable communication mode, the fuel oil pipeline is communicated with the oil drainage branch of the fuel oil tank, the oil drainage device is electrically connected with the control unit of the engine, and the control unit controls the oil drainage branch to be opened or closed.
According to the utility model discloses a fuel pump for engine, the draining device can be according to the control unit's of engine control, carry out the pressure release to the oil pressure in the fuel pipe way, and in flowing back the fuel to the fuel tank, when the control unit of engine detects collision signal, the control unit can control the draining device and open, consequently, the pressure release can be realized to the high-pressure fuel in the fuel pipe way, reduce the pressure in the fuel pipe way after the collision, avoid a large amount of leakages of fuel, thereby can reduce whole car collision back fuel leakage and cause the conflagration risk. In addition, when the engine needs to be maintained, a maintainer can also control the control unit to release the pressure of the high pressure in the fuel pipeline, and the problem that the pipeline cannot be released by after-sales maintenance is solved.
According to the utility model discloses a some embodiments, draining device forms into: when the control unit detects a collision signal, the control unit controls the oil drainage branch to be opened, the fuel pipeline is communicated with the fuel tank, when the control unit does not detect the collision signal, the control unit controls the oil drainage branch to be closed, and the fuel pipeline is disconnected with the fuel tank.
According to the utility model discloses a some embodiments, draining device still includes: a three-way valve electrically connected to the control unit, the three-way valve including: oil inlet, first oil-out and second oil-out, the fuel oil pipeline includes: the first pipeline is suitable for connecting the pump core and the oil inlet, the second pipeline is suitable for connecting the oil outlet interface and the first oil outlet, and the oil drainage branch is suitable for connecting the second oil outlet and the fuel tank;
the three-way valve is formed such that: when the control unit detects a collision signal, the oil inlet, the first oil outlet and the second oil outlet of the three-way valve are in an open state, and when the control unit does not detect the collision signal, the oil inlet, the first oil outlet and the second oil outlet of the three-way valve are in an open state, and the second oil outlet is in a closed state.
Further, the three-way valve further includes: the oil inlet, the first oil outlet and the second oil outlet are located on the valve casing and communicated with a cavity of the valve casing, when the control unit detects a collision signal, the oil port opening and closing device is suitable for opening the second oil outlet, and when the control unit does not detect the collision signal, the oil port opening and closing device is suitable for closing the second oil outlet.
Further, the oil port opening and closing device comprises: the oil drain valve is partially positioned in the valve casing, the driving device is suitable for driving the oil drain valve to move, the driving device is electrically connected with the control unit, when the control unit detects a collision signal, the driving device drives the oil drain valve to move to a position for opening the second oil outlet, and when the control unit does not detect the collision signal, the driving device controls the oil drain valve to be kept at a position for closing the second oil outlet.
Further, the spill valve includes: sealing mechanism and connecting axle, sealing mechanism is located in the valve casing, just sealing mechanism is suitable for selectively shutoff the second oil-out, the connecting axle with sealing mechanism is fixed continuous, the connecting axle is suitable for to run through the valve casing, drive arrangement is located the outside of valve casing, drive arrangement is suitable for the drive the connecting axle removes.
Further, the driving device includes: the electromagnetic coil is electrically connected with the control unit, when the control unit detects a collision signal, the electromagnetic coil is electrified, the magnetic core drives the connecting shaft to move to a position where the sealing mechanism opens the second oil outlet, the reset spring is connected with the other end of the connecting shaft, and the reset spring applies elastic restoring force to the connecting shaft to enable the sealing mechanism to plug the second oil outlet.
According to some embodiments of the present invention, the pump core is provided with a check valve between the fuel pipeline and the pump core for allowing fuel to flow from the pump core to the fuel pipeline.
According to another aspect of the present invention, an engine includes the above-mentioned fuel pump for an engine.
According to the utility model discloses vehicle of third aspect embodiment, including foretell engine.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic illustration of a fuel pump for an engine;
fig. 2 is a schematic diagram of a three-way valve.
Reference numerals:
the fuel pump comprises a fuel pump 10, a shell 1, an oil outlet interface 11, a pump core 12, a fuel pipeline 2, an oil drainage device 3, a three-way valve 31, an oil inlet 32, a first oil outlet 33, a second oil outlet 34, a valve shell 35, an oil port opening and closing device 4, an oil drainage valve 41, a sealing mechanism 42, a connecting shaft 43, an electromagnetic coil 45, a return spring 46 and a one-way valve 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
A fuel pump 10 for an engine according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 2.
Referring to fig. 1, a fuel pump 10 for an engine according to an embodiment of the present invention includes: the fuel oil pump comprises a shell 1, a pump core 12 and an oil drainage device 3, wherein the shell 1 is a hollow shell, one end of the shell 1 is provided with an oil outlet port 11, the oil outlet port 11 is connected with an engine, the other end of the shell 1 is provided with an oil inlet port, the oil inlet port is connected with a fuel oil tank, the pump core 12 is positioned in the shell 1, the pump core 12 is connected with the oil outlet port 11 through a fuel oil pipeline 2, and the pump core 12 is suitable for pumping fuel oil from the oil inlet port to the oil outlet port 11, so that the fuel oil pump 10 can be used for conveying the fuel oil in the fuel oil tank to the engine, and normal.
Further, as shown in fig. 1, the oil drain device 3 is located on the fuel pipeline 2 and includes an oil drain branch capable of selectively communicating the fuel pipeline 2 with the fuel tank, the oil drain device 3 is electrically connected with the control unit of the engine, and the control unit controls the oil drain branch to be opened or closed. That is, the oil drain device 3 can relieve the pressure of the oil in the fuel line 2 and return the fuel to the fuel tank, under the control of the control unit of the engine.
Therefore, in the specific embodiment, when the control unit of the engine detects a collision signal, the control unit can not only send a signal to the engine and the fuel pump 10 to cut off the power supply of the fuel pump 10 to stop the fuel supply of the fuel pump 10, but also cut off the power supply of the engine to stop the engine from running, and can also control the oil drainage device 3 to be opened, so that the high-pressure fuel in the fuel pipeline 2 can be decompressed, the pressure in the fuel pipeline 2 after collision is reduced, the fuel is prevented from being ejected due to damage of the fuel pipeline 2, and the fire risk caused by fuel leakage after the collision of the whole vehicle can be reduced.
Moreover, when the engine needs to be maintained, a maintainer can control the control unit through the control device, so that the pressure in the fuel pipeline 2 is relieved, and after the pressure in the fuel pipeline 2 is relieved, the potential safety hazard caused by the fact that a large amount of liquid fuel is splashed when parts such as the engine and a fuel system are maintained can be avoided.
According to the utility model discloses a fuel pump 10 for engine, draining device 3 can be according to the control unit's of engine control, carry out the pressure release to the high-pressure fuel in fuel pipe way 2, and flow back the fuel in the fuel tank, when the control unit of engine detects the collision signal, the control unit can control draining device 3 and open, therefore, the pressure release can be realized to the high-pressure fuel in the fuel pipe way 2, reduce the pressure in the fuel pipe way 2 after the collision, avoid a large amount of leakages of fuel, thereby can reduce whole car collision back fuel to leak and cause the fire risk. In addition, when the engine needs to be maintained, a maintainer can also control the control unit to release the pressure of the high-pressure fuel in the fuel pipeline 2, and the problem that the pipeline cannot be released in the after-sale maintenance is solved.
Further, the oil drain device 3 is formed such that: when the control unit detects a collision signal, the control unit controls the oil drainage branch to be opened, the fuel pipeline 2 is communicated with the fuel tank, when the control unit does not detect the collision signal, the control unit controls the oil drainage branch to be closed, and the fuel pipeline 2 is disconnected with the fuel tank, so that the oil drainage device 3 can be ensured to effectively relieve the pressure of the fuel pipeline 2, and the normal work of an engine is not influenced when a vehicle is not collided.
It should be noted that, when the control unit detects the collision signal and controls the oil drainage device 3 to connect the fuel pipeline 2 and the fuel tank, the fuel pipeline 2 and the fuel tank are only instantly connected, that is, after the high-pressure fuel in the fuel pipeline 2 is completely decompressed, the connection between the fuel pipeline 2 and the fuel tank is then disconnected, so that the fuel in the fuel tank is prevented from flowing back to the damaged fuel pipeline 2 due to the vehicle being overturned, and a large amount of leakage is prevented, and meanwhile, the fuel pump 10 can be continuously used under the condition that the fuel pump is not damaged after collision.
The control unit in the present application may be an ECU of a vehicle.
Further, as shown in fig. 2, the oil drainage device 3 may further include: a three-way valve 31, the three-way valve 31 being electrically connected to the control unit, the three-way valve 31 including: oil inlet 32, first oil-out 33 and second oil-out 34, fuel pipeline 2 includes: the first pipeline is suitable for connecting the pump core 12 and the oil inlet 32, the second pipeline is suitable for connecting the oil outlet interface 11 and the first oil outlet 33, and the oil drainage branch is suitable for connecting the second oil outlet 34 and the fuel tank;
the three-way valve 31 is formed such that: when the control unit detects a collision signal, the oil inlet 32 and the first oil outlet 33 of the three-way valve 31 and the second oil outlet 34 are both in an open state, and when the control unit does not detect a collision signal, the oil inlet 32 and the first oil outlet 33 of the three-way valve 31 are in an open state, and the second oil outlet 34 is in a closed state.
That is, the oil inlet 32 and the first oil outlet 33 of the three-way valve 31 are in a normally open state, when the control unit detects a collision signal, the second oil outlet 34 of the three-way valve 31 is opened, and at this time, the oil inlet 32, the first oil outlet 33 and the second oil outlet 34 are both in an open state, and since the control unit controls the engine and the fuel pump 10 to stop working at the same time, the oil inlet 32 and the first oil outlet 33 are closed, so that the high-pressure oil in the fuel pipeline 2 flows back to the fuel tank from the second oil outlet 34, thereby instantly releasing the pressure of the fuel pipeline 2. And after pressure relief is finished, the second oil outlet 34 is closed randomly, so that the safety of the fuel system is ensured.
Furthermore, the terms "first", "second" and "first" 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 one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Further, as shown in fig. 2, the three-way valve 31 may further include: valve casing 35 and oil port lead to close device 4, valve casing 35 forms into hollow valve body, and oil inlet 32, first oil-out 33 and second oil-out 34 all are located valve casing 35 and all are linked together with valve casing 35's cavity, and when the control unit detected the collision signal, oil port lead to close device 4 is suitable for opening second oil-out 34, and when the control unit did not detect the collision signal, oil port lead to close device 4 is suitable for and closes second oil-out 34 to guarantee that second oil-out 34 can be normal open and close.
Further, as shown in fig. 2, the oil port opening and closing device 4 includes: a spill valve 41, drive means, the spill valve 41 being partly located in the valve housing 35, the drive means being adapted to drive the spill valve 41 into movement, the drive means being electrically connected to the control unit, the drive means driving the spill valve 41 into a position opening the second oil outlet 34 when the control unit detects a collision signal, the drive means controlling the spill valve 41 to remain in a position closing the second oil outlet 34 when the control unit does not detect a collision signal.
That is, the relief valve 41 is located in the valve housing 35 at a position near the second oil outlet 34, and the driving device may control the relief valve 41 to open and close the second oil outlet 34 by driving the relief valve 41.
Further, as shown in fig. 2, the spill valve 41 may include: sealing mechanism 42 and connecting axle 43, sealing mechanism 42 is located valve casing 35, and sealing mechanism 42 is suitable for selectively shutoff second oil-out 34, and connecting axle 43 is fixed continuous with sealing mechanism 42, and connecting axle 43 is suitable for running through valve casing 35, and drive arrangement is located the outside of valve casing 35, and drive arrangement is suitable for drive connecting axle 43 and removes to can drive the sealing mechanism 42 that is located valve casing 35 and remove, and then can open or close second oil-out 34.
Further, as shown in fig. 2, the driving device may include: when the control unit detects a collision signal, the electromagnetic coil 45 is electrified, the magnetic core drives the connecting shaft 43 to move to a position where the sealing mechanism 42 opens the second oil outlet 34, the return spring 46 is connected with the other end of the connecting shaft 43, and the return spring 46 applies elastic restoring force to the connecting shaft 43 to enable the sealing mechanism 42 to block the second oil outlet 34.
That is, when the control unit detects a collision signal, the electromagnetic coil 45 is energized, so that electromagnetic induction occurs between the electromagnetic coil 45 and the magnetic core of the connecting shaft 43, the magnetic core moves, the sealing mechanism 42 is driven to move, the second oil outlet 34 is opened, the fuel pipeline 2 is communicated with the fuel tank, high-pressure fuel in the fuel pipeline 2 is instantly decompressed, the electromagnetic coil 45 is then de-energized, the return spring 46 drives the connecting shaft 43 to move under the action of the elastic force of the return spring 46, the sealing mechanism 42 is driven to move, the second oil outlet 34 is closed, and the fuel pipeline 2 is disconnected from the fuel tank.
It should be noted that, in order to detect the collision signal, the control unit positions the sealing mechanism 42 at a position closing the second oil outlet 34.
In other embodiments, the oil port opening and closing device 4 is an electronic telescopic part, the electronic telescopic part is located at the second oil outlet 34, when the control unit detects a collision signal, the control unit controls the electronic telescopic part to contract, the electronic telescopic part is suitable for opening the second oil outlet 34, when the control unit does not detect the collision signal, the control unit controls the electronic telescopic part to extend, and the electronic telescopic part is suitable for closing the second oil outlet 34, so that the oil drainage device 3 can reliably relieve pressure of the fuel oil pipeline 2, and the safety of the fuel oil system is ensured.
Further, as shown in fig. 1, a check valve 5 allowing fuel to flow only from the pump core 12 to the fuel pipeline 2 is arranged between the pump core 12 and the fuel pipeline 2, and the check valve can be used for preventing fuel in the fuel pipeline 2 from flowing back to the fuel tank under the normal working state of the engine, so that the high pressure is always kept in the fuel pipeline 2, and the vehicle can be ensured to be ignited and started more quickly next time.
According to another aspect of the present invention, an engine includes the fuel pump 10 for an engine.
According to the utility model discloses vehicle of third aspect embodiment, including foretell engine.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to 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 described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a fuel pump for engine, the fuel pump includes casing and pump core, the casing forms the cavity casing, the one end of casing is equipped with out the oil interface, go out the oil interface with the engine links to each other, the other end of casing is equipped with the oil feed interface, the oil feed interface links to each other with the fuel tank, the pump core is located in the casing, the pump core with it is connected through the fuel pipeline to go out the oil interface, the pump core is suitable for with the fuel follow the oil feed interface is pumped out go out the oil interface, its characterized in that, the fuel pump includes:
the oil drainage device is located on the fuel oil pipeline and comprises a selectable communication mode, the fuel oil pipeline is communicated with the oil drainage branch of the fuel oil tank, the oil drainage device is electrically connected with the control unit of the engine, and the control unit controls the oil drainage branch to be opened or closed.
2. The fuel pump for an engine of claim 1, wherein the oil drainage device is formed as: when the control unit detects a collision signal, the control unit controls the oil drainage branch to be opened, the fuel pipeline is communicated with the fuel tank, when the control unit does not detect the collision signal, the control unit controls the oil drainage branch to be closed, and the fuel pipeline is disconnected with the fuel tank.
3. The fuel pump for an engine of claim 1, wherein the oil drainage device further comprises: a three-way valve electrically connected to the control unit, the three-way valve including: oil inlet, first oil-out and second oil-out, the fuel oil pipeline includes: the first pipeline is suitable for connecting the pump core and the oil inlet, the second pipeline is suitable for connecting the oil outlet interface and the first oil outlet, and the oil drainage branch is suitable for connecting the second oil outlet and the fuel tank;
the three-way valve is formed such that: when the control unit detects a collision signal, the oil inlet, the first oil outlet and the second oil outlet of the three-way valve are in an open state, and when the control unit does not detect the collision signal, the oil inlet, the first oil outlet and the second oil outlet of the three-way valve are in an open state, and the second oil outlet is in a closed state.
4. A fuel pump for an engine as set forth in claim 3, wherein said three-way valve further comprises: the oil inlet, the first oil outlet and the second oil outlet are located on the valve casing and communicated with a cavity of the valve casing, when the control unit detects a collision signal, the oil port opening and closing device is suitable for opening the second oil outlet, and when the control unit does not detect the collision signal, the oil port opening and closing device is suitable for closing the second oil outlet.
5. The fuel pump for an engine of claim 4, wherein the port opening and closing device comprises: the oil drain valve is partially positioned in the valve casing, the driving device is suitable for driving the oil drain valve to move, the driving device is electrically connected with the control unit, when the control unit detects a collision signal, the driving device drives the oil drain valve to move to a position for opening the second oil outlet, and when the control unit does not detect the collision signal, the driving device controls the oil drain valve to be kept at a position for closing the second oil outlet.
6. The fuel pump for an engine of claim 5, wherein the spill valve comprises: sealing mechanism and connecting axle, sealing mechanism is located in the valve casing, just sealing mechanism is suitable for selectively shutoff the second oil-out, the connecting axle with sealing mechanism is fixed continuous, the connecting axle is suitable for to run through the valve casing, drive arrangement is located the outside of valve casing, drive arrangement is suitable for the drive the connecting axle removes.
7. A fuel pump for an engine as set forth in claim 6, wherein said drive means includes: the electromagnetic coil is electrically connected with the control unit, when the control unit detects a collision signal, the electromagnetic coil is electrified, the magnetic core drives the connecting shaft to move to a position where the sealing mechanism opens the second oil outlet, the reset spring is connected with the other end of the connecting shaft, and the reset spring applies elastic restoring force to the connecting shaft to enable the sealing mechanism to plug the second oil outlet.
8. A fuel pump for an engine as set forth in claim 1, wherein a one-way valve is provided between said pump core and said fuel line to permit fuel flow only from said pump core to said fuel line.
9. An engine comprising a fuel pump for an engine according to any one of claims 1 to 8.
10. A vehicle characterized by comprising the engine according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020388423.6U CN212359984U (en) | 2020-03-24 | 2020-03-24 | Fuel pump for engine, engine with fuel pump and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020388423.6U CN212359984U (en) | 2020-03-24 | 2020-03-24 | Fuel pump for engine, engine with fuel pump and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212359984U true CN212359984U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020388423.6U Active CN212359984U (en) | 2020-03-24 | 2020-03-24 | Fuel pump for engine, engine with fuel pump and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212359984U (en) |
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2020
- 2020-03-24 CN CN202020388423.6U patent/CN212359984U/en active Active
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