CN214366473U - Dual-fuel supply system and engine with same - Google Patents
Dual-fuel supply system and engine with same Download PDFInfo
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- CN214366473U CN214366473U CN202022396998.5U CN202022396998U CN214366473U CN 214366473 U CN214366473 U CN 214366473U CN 202022396998 U CN202022396998 U CN 202022396998U CN 214366473 U CN214366473 U CN 214366473U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model particularly relates to a dual fuel supply system and have its engine. The dual fuel supply system includes: an oil tank; a gas tank; the oil supply pipeline is connected with the oil tank and is used for communicating the oil tank with the oil injector; the gas supply pipeline is connected with the gas tank and is used for communicating the gas tank with the oil injector; the dual-fuel filter is connected with the oil supply pipeline and the gas supply pipeline, and is used for filtering fuel oil and/or fuel gas. According to the utility model discloses a dual-fuel supply system, dual-fuel filter can filter fuel and gas respectively, and dual-fuel filter collects to fire oil filter and gas filter as an organic whole promptly, is guaranteeing to filter under gas and the oily prerequisite, has reduced the volume of firing oil filter and gas filter to save space, the dual-fuel supply system of being convenient for arranges in the engine.
Description
Technical Field
The utility model belongs to the technical field of the vehicle, concretely relates to dual fuel supply system and have its engine.
Background
The natural gas-diesel oil dual-purpose fuel engine can simultaneously use two fuels of natural gas and diesel oil, and the working principle of the engine is that a small amount of ignition diesel oil is sprayed into a cylinder, and the natural gas sprayed into the cylinder is ignited after the ignition diesel oil is compressed and ignited. Most of the existing dual-fuel engines adopt a natural gas supply system and an oil supply system which are independent. Due to the limited space of the complete machine, it is difficult to arrange a natural gas supply system and a fuel supply system in the complete machine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing dual-fuel engine is difficult to arrange a fuel gas supply system and a fuel oil supply system. The purpose is realized by the following technical scheme:
the utility model discloses a first aspect provides a dual fuel supply system, dual fuel supply system includes: an oil tank; a gas tank; the oil supply pipeline is connected with the oil tank and is used for communicating the oil tank with the oil injector; the gas supply pipeline is connected with the gas tank and is used for communicating the gas tank with the oil injector; the dual-fuel filter is connected with the oil supply pipeline and the gas supply pipeline, and is used for filtering fuel oil and/or fuel gas.
According to the utility model discloses dual fuel supply system, during fuel in the oil tank got into dual fuel filter through supplying oil pipe way, after filtering fuel through dual fuel filter, supply oil pipe way and carry the fuel sprayer, during gas in the gas pitcher passed through air supply line and gets into dual fuel filter, filtered the back through dual fuel filter to gas, during the air supply line carried the fuel sprayer with the gas to realize dual fuel's supply. The dual-fuel filter can filter fuel and gas respectively, and the dual-fuel filter integrates the fuel filter and the gas filter, so that the volumes of the fuel filter and the gas filter are reduced on the premise of ensuring that the fuel gas and the fuel oil can be filtered, thereby saving space and facilitating the arrangement of a dual-fuel supply system in an engine.
In addition, according to the utility model discloses dual fuel supply system, can also have following technical characterstic:
in some embodiments of the present invention, the dual fuel filter includes a fuel filter element and a fuel filter element, the fuel filter element surrounds the fuel filter element, the fuel filter element is connected to the fuel supply pipeline, and the fuel filter element is connected to the fuel supply pipeline.
In some embodiments of the present invention, the oil supply system further includes an oil return pipeline, the oil return pipeline is used for connecting the oil injector with the oil tank, and/or the oil return pipeline is used for connecting the oil pump with the oil tank.
The utility model discloses an in some embodiments, be equipped with filter oil return branch road on the time oil pipe way, filter oil return branch road is connected the fuel filter core.
In some embodiments of the present invention, the filter oil return branch is further provided with an on-off valve.
The utility model discloses an in some embodiments, dual fuel supply system still includes oil rail and a plurality of fuel feeding branch road, the both ends of oil rail are connected respectively the fuel feeding pipeline is kept away from the one end of oil tank with a plurality of fuel feeding branch roads, a plurality of fuel feeding branch roads are used for with a plurality of the sprayer communicates one by one.
In some embodiments of the present invention, the dual fuel supply system further comprises an oil pump disposed on the oil supply line and located between the dual fuel filter and the oil rail.
In some embodiments of the present invention, the dual fuel supply system further comprises an air rail and a plurality of air supply branches, the two ends of the air rail are respectively connected the air supply line is kept away from one end of the air tank and the plurality of air supply branches, the air supply branches are used for connecting the oil injector.
In some embodiments of the present invention, the dual fuel supply system further comprises an air pump disposed on the air supply line and located between the dual fuel filter and the air rail.
A second aspect of the present invention provides an engine, the engine comprising a fuel injector and a dual fuel supply system according to any one of the above embodiments, the dual fuel supply system being connected to the fuel injector.
According to the utility model discloses engine, fuel in the oil tank gets into dual fuel filter through supplying the oil pipe way, filters the back through dual fuel filter to fuel, supplies the oil pipe way to carry the fuel in the sprayer, and during gas in the gas pitcher passed through the gas supply line and gets into dual fuel filter, filters the back through dual fuel filter to gas, during the gas supply line carried the gas sprayer to realize dual fuel's supply. The dual-fuel filter can filter fuel and gas respectively, and the dual-fuel filter integrates the fuel filter and the gas filter, so that the volumes of the fuel filter and the gas filter are reduced on the premise of ensuring that the fuel gas and the fuel oil can be filtered, thereby saving space and facilitating the arrangement of a dual-fuel supply system in an engine.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of an overall structure of an engine according to an embodiment of the present invention;
fig. 2 is a schematic partial structural view of an engine according to an embodiment of the present invention;
fig. 3 is a schematic partial structural diagram of a dual fuel supply system according to an embodiment of the present invention.
The reference symbols in the drawings denote the following:
100: a dual fuel supply system;
10: an oil tank;
20: a gas tank;
30: oil supply line, 31: oil supply branch, 32: oil inlet pipeline, 33: an oil outlet pipeline;
40: gas supply line, 41: gas supply branch, 42: intake pipe, 43: an air outlet pipeline;
50: dual fuel filter, 51: fuel filter, 511: housing, 52: a gas filter element;
60: an oil return pipeline: 61: oil pump return branch, 62: oil return branch of oil injector, 63: oil return main line, 64: filter oil return branch, 641: an on-off valve;
70: an oil rail;
80: an air rail;
90: an oil pump;
110: an air pump;
200: and a fuel injector.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and groups thereof.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and sections, these elements, components, regions, layers and sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1, an embodiment of the first aspect of the present invention provides a dual fuel supply system 100, where the dual fuel supply system 100 includes: the fuel tank comprises a fuel tank 10, a gas tank 20, a fuel supply pipeline 30, a gas supply pipeline 40 and a dual-fuel filter 50, wherein the fuel supply pipeline 30 is connected with the fuel tank 10, the fuel supply pipeline 30 is used for communicating the fuel tank 10 with a fuel injector 200, the gas supply pipeline 40 is connected with the gas tank 20, the gas supply pipeline 40 is used for communicating the gas tank 20 with the fuel injector 200, the dual-fuel filter 50 is connected with the fuel supply pipeline 30 and the gas supply pipeline 40, and the dual-fuel filter 50 is used for filtering fuel oil and fuel gas.
According to the utility model discloses dual fuel supply system 100, the fuel in the oil tank 10 gets into dual fuel filter 50 through supplying oil pipe way 30, filters the back to fuel through dual fuel filter 50, supplies oil pipe way 30 to carry the fuel in sprayer 200, and the gas in the gas pitcher 20 passes through during air supply line 40 gets into dual fuel filter 50, filters the back to gas through dual fuel filter 50, and air supply line 40 carries the gas in sprayer 200 to realize the supply of dual fuel. The dual fuel filter 50 can filter fuel and fuel gas respectively, namely the dual fuel filter integrates the fuel filter and the fuel gas filter, so that the overall volume of the fuel filter and the fuel gas filter is reduced, the space is saved, and the dual fuel supply system can be arranged in an engine conveniently.
In some embodiments of the present invention, as shown in fig. 3, the dual fuel filter 50 includes a fuel filter element 51 connected to the fuel supply line 30, the fuel supply line 30 delivers the fuel in the fuel tank 10 to the fuel filter element 51, the fuel is filtered by the fuel filter element 51, and the fuel supply line 30 delivers the filtered fuel to the fuel injector 200, so as to supply the fuel. The dual fuel filter 50 further includes a fuel gas filter element 52 connected to the gas supply line 40, the gas supply line 40 delivers the fuel gas in the gas tank 20 to the fuel gas filter element 52, the fuel gas is filtered by the fuel gas filter element 52, and the gas supply line 40 delivers the filtered fuel gas to the fuel injector 200, thereby supplying the fuel gas. The gas filter element 52 is disposed around the fuel filter element 51, that is, both the gas filter element 52 and the fuel filter element 51 are disposed in a casing (not shown) of the dual fuel filter 50, so as to save space and facilitate the arrangement of the dual fuel filter 50 in an engine with limited space.
Specifically, the oil supply pipeline 30 further includes an oil inlet pipeline 32 and an oil outlet pipeline 33, both the oil inlet pipeline 32 and the oil outlet pipeline 33 are connected to the fuel filter element 51, and the fuel enters the fuel filter element 51 through the oil inlet pipeline 32, is filtered by the fuel filter element 51, and is discharged from the fuel filter element 51 through the oil outlet pipeline 33. The gas supply pipeline 40 further comprises a gas inlet pipeline 42 and a gas outlet pipeline 43, the gas inlet pipeline 42 and the gas outlet pipeline 43 are both connected with the gas filter element 52, gas is introduced into the gas filter element 52 through the gas inlet pipeline 42, and is filtered by the gas filter element 52 and then is discharged out of the gas filter element 52 through the gas outlet pipeline 43.
In some embodiments of the present invention, as shown in fig. 2, the oil supply system further includes an oil return pipeline 60, the oil return pipeline 60 is used for connecting the oil injector 200 and the oil tank 10, and meanwhile, the oil return pipeline 60 connects the oil pump 90 and the oil tank 10, and the oil return pipeline 60 conveys the oil return in the oil injector 200 and the oil return in the oil pump 90 to the oil return is effectively reused, so as to achieve the purpose of saving resources. Further, the return line 60 may be connected only to the injector 200 and the tank 10, or the return line 60 may be connected only to the oil pump 90 and the tank 10. Specifically, the oil return line 60 includes an oil pump oil return branch 61, an oil injector oil return branch 62, and an oil return main line 63, where the oil pump oil return branch 61 and the oil injector oil return branch 62 are both connected to one end of the oil return main line 63, and the other end of the oil return main line 63 is connected to the oil tank 10.
Furthermore, a filter oil return branch 64 is arranged on the oil return main line 63, and the filter oil return branch 64 is connected with the fuel filter element 51. Because the oil return of the oil injector 200 and the oil return of the oil pump 90 have certain temperatures, after the oil return of the oil injector 200 and the oil return of the oil pump 90 enter the fuel filter element 51 through the filter oil return branch 64, the oil return heats the fuel passing through the fuel filter element 51, the fuel transfers heat to the shell 511 of the fuel filter element 51, and the shell 511 heats the fuel filter element 52 arranged around the shell 511, so that the purpose of heating the fuel is achieved.
Furthermore, the filter oil return branch 64 is further provided with an on-off valve 641, when the gas temperature reaches a preset value, the on-off valve 641 is closed, so that the return oil no longer flows into the fuel filter element 51 and flows back to the oil tank 10, thereby preventing the gas temperature from overheating.
In some embodiments of the present invention, the dual fuel supply system 100 further includes an oil rail 70 and a plurality of oil supply branches 31, the two ends of the oil rail 70 are respectively connected to one end of the oil supply pipeline 30 far away from the oil tank 10 and the plurality of oil supply branches 31, and the plurality of oil supply branches 31 are respectively connected to the plurality of oil injectors 200. Rail 70 is provided to store fuel delivered by supply line 30 while suppressing pressure fluctuations due to the supply of fuel from pump 90 and the injection of fuel from injector 200, thereby ensuring system pressure stability.
In some embodiments of the present disclosure, the dual fuel supply system 100 further includes an oil pump 90, the oil pump 90 being disposed on the oil supply line 30 and between the dual fuel filter 50 and the oil rail 70. The oil pump 90 is used to power the fuel in the supply line 30 to ensure proper delivery of the fuel.
In some embodiments of the present invention, the dual fuel supply system 100 further includes a gas rail 80 and a plurality of gas supply branches 41, two ends of the gas rail 80 are respectively connected to one end of the gas supply line 40 away from the gas tank 20 and the plurality of gas supply branches 41, and the plurality of gas supply branches 41 are respectively connected to the plurality of fuel injectors 200. The gas rail 80 is used for temporarily storing gas and suppressing pressure fluctuation generated by the oil injection of the oil injector 200, so that the gas pressure of the system is stable.
In some embodiments of the present disclosure, the dual fuel supply system 100 further includes an air pump 110, the air pump 110 being disposed on the air supply line 40 and between the dual fuel filter 50 and the air rail 80. The air pump 110 is used to power the gas in the gas supply line 40 to ensure delivery of the gas from the gas tank 20 into the gas rail 80.
An embodiment of the second aspect of the present invention provides an engine, which comprises a plurality of fuel injectors 200 and a dual fuel supply system 100 according to any of the above embodiments, wherein the plurality of fuel injectors 200 are all connected to the dual fuel supply system 100. Fuel enters the supply line 30 from the fuel tank 10 under the action of the fuel pump 90 and is filtered by the dual fuel filter 60, the supply line 30 delivers the filtered fuel to the fuel rail 70, and finally the fuel is delivered to the fuel injector 200 through the fuel supply branch 31. The gas enters the gas supply pipeline 40 from the gas tank 20 under the action of the gas pump 110, the gas is filtered through the dual-fuel filter 60, then the gas supply pipeline 40 delivers the filtered gas to the gas rail 80, and finally the gas is delivered to the fuel injector 200 through the gas supply branch 41.
According to the utility model discloses engine, during fuel in the oil tank 10 got into dual fuel filter 50 through supplying oil pipeline 30, after filtering fuel through dual fuel filter 50, during fuel injector 200 was carried with fuel to supplying oil pipeline 30, during gas in the gas pitcher 20 got into dual fuel filter 50 through air supply pipeline 40, after filtering gas through dual fuel filter 50, during air supply pipeline 40 carried fuel injector 200 to realize the supply of dual fuel. The dual-fuel filter 50 can filter fuel and fuel gas respectively, namely the dual-fuel filter integrates a fuel filter and a fuel gas filter, and reduces the volume of the fuel filter and the fuel gas filter on the premise of ensuring that the fuel gas and the fuel oil can be filtered, so that the space is saved, and the dual-fuel supply system is convenient to arrange in an engine.
In some embodiments of the utility model, the engine still includes ECU (not shown in the figure) and temperature-sensing ware (not shown in the figure), and ECU and temperature sensor, on-off valve 641 are all connected electrically, and the temperature-sensing ware is used for detecting the temperature of gas, and ECU passes through temperature sensor and acquires the temperature of gas, and when the gas temperature was higher than default T1, ECU control on-off valve 641 disconnection to close filter oil return branch 64, avoid the oil return to continue to heat fuel and gas.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A dual fuel supply system, comprising:
an oil tank;
a gas tank;
the oil supply pipeline is connected with the oil tank and is used for communicating the oil tank with the oil injector;
the gas supply pipeline is connected with the gas tank and is used for communicating the gas tank with the oil injector;
the dual-fuel filter is connected with the oil supply pipeline and the gas supply pipeline, and is used for filtering fuel oil and/or fuel gas.
2. The dual fuel supply system of claim 1, wherein the dual fuel filter includes a fuel filter element and a gas filter element, the gas filter element being disposed around the fuel filter element, the fuel filter element being connected to the supply line, the gas filter element being connected to the supply line.
3. A dual fuel supply system according to claim 2, wherein the fuel supply line further comprises a return line for connecting the fuel injector to the fuel tank and/or for connecting a fuel pump to the fuel tank.
4. A dual fuel supply system as claimed in claim 3 wherein a filter return branch is provided on the return line, the filter return branch being connected to the fuel filter element.
5. A dual fuel supply system as claimed in claim 4 wherein an on-off valve is also provided in the filter return branch.
6. The dual fuel supply system of any one of claims 1 to 5, further comprising an oil rail and a plurality of oil supply branches, wherein two ends of the oil rail are respectively connected with one end of the oil supply pipeline away from the oil tank and the plurality of oil supply branches, and the plurality of oil supply branches are used for being communicated with the plurality of oil injectors one by one.
7. The dual fuel supply system of claim 6, further comprising an oil pump disposed on the oil supply line between the dual fuel filter and the oil rail.
8. The dual fuel supply system of any of the claims 1 to 5 further comprising a gas rail and a plurality of gas supply branches, wherein two ends of the gas rail are respectively connected to one end of the gas supply line away from the gas tank and the plurality of gas supply branches, and the gas supply branches are used for connecting the fuel injector.
9. The dual fuel supply system of claim 8 further comprising an air pump disposed on the air supply line between the dual fuel filter and the air rail.
10. An engine, characterized in that it comprises an oil injector and a dual fuel supply system according to any one of claims 1-9, which is connected to the oil injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022396998.5U CN214366473U (en) | 2020-10-23 | 2020-10-23 | Dual-fuel supply system and engine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022396998.5U CN214366473U (en) | 2020-10-23 | 2020-10-23 | Dual-fuel supply system and engine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214366473U true CN214366473U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022396998.5U Active CN214366473U (en) | 2020-10-23 | 2020-10-23 | Dual-fuel supply system and engine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214366473U (en) |
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2020
- 2020-10-23 CN CN202022396998.5U patent/CN214366473U/en active Active
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