CN220687467U - Fuel system of diesel engine - Google Patents
Fuel system of diesel engine Download PDFInfo
- Publication number
- CN220687467U CN220687467U CN202322306593.1U CN202322306593U CN220687467U CN 220687467 U CN220687467 U CN 220687467U CN 202322306593 U CN202322306593 U CN 202322306593U CN 220687467 U CN220687467 U CN 220687467U
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- China
- Prior art keywords
- oil
- fuel
- rubber pipe
- pipe
- diesel
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- 239000000446 fuel Substances 0.000 title claims abstract description 58
- 239000003921 oil Substances 0.000 claims abstract description 153
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 239000002283 diesel fuel Substances 0.000 claims abstract description 27
- 239000002828 fuel tank Substances 0.000 claims abstract description 27
- 239000000295 fuel oil Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010705 motor oil Substances 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a fuel system of a diesel engine, in particular to the technical field of forklift engines, which comprises a strainer, an oil outlet steel pipe, an oil supply rubber pipe and a fuel tank cover plate, wherein the oil supply rubber pipe comprises the following components: the oil supply hose I, the oil supply hose II, the oil supply hose III and the oil supply pipe IV; the fuel tank cover plate is characterized in that the fuel outlet steel pipe is fixedly arranged on the fuel tank cover plate, one end of the fuel outlet steel pipe is connected with one end of the fuel supply rubber pipe I, the other end of the fuel supply rubber pipe I is fixedly connected with the diesel oil separator, the diesel oil separator is connected with the fuel supply pump through the fuel supply rubber pipe II, the fuel supply pump is connected with the diesel oil fine filter through the fuel supply rubber pipe III, and the diesel oil fine filter is connected with the fuel inlet of the engine through the fuel supply pipe IV. According to the utility model, the diesel water separator, the fuel oil supply pump and the diesel fine filter are far away from the engine by arranging the mounting plate, so that the components are prevented from being influenced by a heat source of the engine, and the aging time of a corresponding fuel oil pipeline is prolonged.
Description
Technical Field
The utility model relates to the technical field of forklift engines, in particular to a fuel system of a diesel engine.
Background
Common fuel systems for diesel engines are known to include: a strainer, an oil outlet steel pipe, a clamp, an oil supply rubber pipe, an oil return rubber pipe, a fuel tank cover plate, a bolt fastener, an oil quantity sensor, a screw fastener and an oil return steel pipe, therefore, the engine is required to be provided with a fine filter and a fuel pump,
however, in actual use, as each engine manufacturer has a fine filter and a different fuel pump, the types of parts are various, the universality is low, the interchangeability is not realized, and the trouble is brought to the later maintenance; the fine filter and the fuel pump are arranged on the engine, so that the fine filter is influenced by a heat source of the engine, the service life of the fine filter is shortened, and a pipeline is more easily aged; the fuel pump is affected by vibration when the engine works, so that the service life of the fuel pump is shortened; a fuel system for a diesel engine is therefore proposed as a further improvement.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present utility model provide a fuel system for a diesel engine, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the fuel system of the diesel engine comprises a strainer, an oil outlet steel pipe, an oil supply rubber pipe, a fuel tank cover plate, a bolt fastener, an oil quantity sensor and a screw fastener, wherein the oil outlet steel pipe is connected with the strainer; the oil outlet steel pipe is fixedly arranged on the fuel tank cover plate,
the oil supply hose includes: the oil supply hose I, the oil supply hose II, the oil supply hose III and the oil supply pipe IV; the fuel tank is characterized in that the fuel outlet steel pipe penetrates through one end of the fuel tank cover plate and one end of the fuel supply rubber pipe I, the other end of the fuel supply rubber pipe I is fixedly connected with a diesel water separator, the diesel water separator is connected with a fuel supply pump through the fuel supply rubber pipe II, the fuel supply pump is connected with a diesel fine filter through the fuel supply rubber pipe III, and the diesel fine filter is connected with a fuel inlet of an engine through the fuel supply pipe IV.
Further, a fuel system of a diesel engine, comprising: the oil return rubber tube and the oil return steel pipe of being connected with the oil tank, oil return steel pipe fixed mounting is on the fuel tank apron, oil return rubber tube includes: an engine oil return rubber pipe and a total oil return rubber pipe; one end of the engine oil return rubber pipe is connected with an engine oil return port, the other end of the engine oil return rubber pipe is connected with a pipeline tee joint, a one-way oil return mechanism is arranged between one end of the pipeline tee joint and the diesel oil fine filter, one end of the pipeline tee joint is connected with a total oil return rubber pipe, and the other end of the total oil return rubber pipe is connected with one end of the oil return steel pipe penetrating through the fuel tank cover plate.
Further, the one-way oil return mechanism includes: the diesel oil fine filter is connected with the one-way valve through the one-way oil return rubber pipe I, the other end of the one-way valve is connected with one end of the pipeline tee joint through the one-way oil return rubber pipe II, and the flow direction of the one-way valve is set to be that the one-way oil return rubber pipe I flows to the one-way oil return rubber pipe II.
Further, the diesel-water separator, the fuel oil supply pump and the diesel fine filter are fixedly arranged on a mounting plate, and the mounting plate is fixedly arranged on the frame.
Further, the joint of the oil outlet steel pipe and the oil supply rubber pipe I and the joint of the oil return steel pipe and the total oil return rubber pipe are clamped through clamping hoops.
The utility model has the technical effects and advantages that:
1. compared with the prior art, the diesel oil separator, the fuel oil supply pump and the diesel oil fine filter are far away from the engine by arranging the mounting plate, so that the diesel oil separator, the fuel oil supply pump and the diesel oil fine filter are not influenced by the heat source of the engine, and the aging time of the corresponding fuel oil pipeline is prolonged; and the fuel oil supply pump is arranged on the frame, so that the vibration influence caused by the operation of the engine is greatly reduced, the service life of the fuel oil supply pump is prolonged, and the adverse effects of the vibration, the high-temperature heat source and the like caused by the engine are avoided.
2. Compared with the prior art, the unified diesel water separator, the fuel supply pump and the diesel fine filter are arranged, so that the fuel supply pump and the diesel fine filter in the fuel system are unified, the universality and interchangeability of parts are improved, and the maintenance convenience is improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic diagram of the structure of the oil return hose of the present utility model.
Fig. 3 is a schematic diagram of a conventional fuel system.
The reference numerals are:
1. a coarse filter; 2. an oil outlet steel pipe;
3. an oil supply rubber tube;
31. an oil supply rubber pipe I; 32. the oil supply rubber pipe II; 33. an oil supply rubber pipe III; 34. a fourth oil supply pipe;
4. a fuel tank cover plate; 5. a bolt fastener; 6. an oil quantity sensor; 7. a screw fastener;
8. a diesel water separator; 9. a fuel supply pump; 10. a diesel fine filter;
11. an oil return rubber tube;
111. an engine oil return rubber pipe; 112. a total oil return rubber pipe;
12. oil return steel pipes; 13. a pipeline tee joint;
14. a one-way oil return mechanism;
141. a one-way valve; 142. a one-way oil return rubber pipe I; 143. a one-way oil return rubber pipe II;
15. and (3) mounting a plate.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The fuel system of the diesel engine shown in the accompanying drawings 1, 2 and 3 comprises a strainer 1, an oil outlet steel pipe 2 connected with the strainer 1, an oil supply rubber pipe 3, a fuel tank cover plate 4, a bolt fastener 5, an oil quantity sensor 6 and a screw fastener 7, wherein the fuel tank cover plate 4 is fixedly arranged on a vehicle body oil tank through the bolt fastener 5, and the oil quantity sensor 6 is fixedly arranged on the fuel tank cover plate 4 through the screw fastener 7; the oil outlet steel pipe 2 is fixedly arranged on the fuel tank cover plate 4, and the oil supply rubber pipe 3 comprises: the oil supply hose I31, the oil supply hose II 32, the oil supply hose III 33 and the oil supply pipe IV 34; the oil outlet steel pipe 2 penetrates through one end of the fuel tank cover plate 4 and is connected with one end of the oil supply rubber pipe I31, the other end of the oil supply rubber pipe I31 is fixedly connected with the diesel oil separator 8, the diesel oil separator 8 is connected with the fuel oil supply pump 9 through the oil supply rubber pipe II 32, the fuel oil supply pump 9 is connected with the diesel oil fine filter 10 through the oil supply rubber pipe III 33, and the diesel oil fine filter 10 is connected with a fuel oil inlet of the engine through the oil supply pipe IV 34.
The unified diesel oil separator 8, the fuel oil supply pump 9 and the diesel oil fine filter 10 are adopted, so that the fuel oil supply pump 9 and the diesel oil fine filter 10 in a fuel oil system are unified, the universality and interchangeability of parts are improved, and the maintenance convenience is improved.
In a preferred embodiment, as shown in fig. 1, 2 and 3, a fuel system for a diesel engine comprises: the oil return rubber pipe 11 and the oil return steel pipe 12 of being connected with the oil tank, oil return steel pipe 12 fixed mounting is on fuel tank apron 4, and oil return rubber pipe 11 includes: an engine oil return hose 111 and a total oil return hose 112; one end of an engine oil return rubber pipe 111 is connected with an engine oil return port, the other end of the engine oil return rubber pipe 111 is connected with a pipeline tee joint 13, a one-way oil return mechanism 14 is arranged between one end of the pipeline tee joint 13 and the diesel fine filter 10, one end of the pipeline tee joint 13 is connected with a total oil return rubber pipe 112, and the other end of the total oil return rubber pipe 112 is connected with one end of an oil return steel pipe 12 penetrating through a fuel tank cover plate 4;
the one-way oil return mechanism 14 includes: the diesel oil fine filter 10 is connected with the one-way valve 141 through the one-way oil return rubber pipe 142, the other end of the one-way valve 141 is connected with one end of the pipeline tee 13 through the one-way oil return rubber pipe 143, and the flow direction of the one-way valve 141 is set to be that the one-way oil return rubber pipe 142 flows to the one-way oil return rubber pipe 143;
the redundant oil pumped by the fuel system flows to the pipeline tee 13 through the engine oil return rubber pipe 111, the diesel fine filter 10 flows the redundant oil to the one-way valve 141 through the one-way oil return rubber pipe 142, the one-way valve 141 ensures the one-way flow of the oil, so that the oil flows to the pipeline tee 13 from the one-way oil return rubber pipe 143, and then both pipelines flow back to the oil return steel pipe 12 along the total oil return rubber pipe 112 from the pipeline tee 13, and finally flow back to the oil tank along the oil return steel pipe 12;
wherein, the pipeline tee 13 increases the channel of the diesel oil fine filter 10 for returning oil to the oil tank, and can adjust the pressure in the pipeline.
In a preferred embodiment, as shown in fig. 1, 2 and 3, the diesel-water separator 8, the fuel supply pump 9 and the diesel fine filter 10 are all fixedly mounted on a mounting plate 15, and the mounting plate 15 is fixedly mounted on the vehicle frame;
the mounting plate 15 can enable the diesel-water separator 8, the fuel oil supply pump 9 and the diesel fine filter 10 to be far away from the engine, is not influenced by a heat source of the engine, and prolongs the aging time of a corresponding fuel oil pipeline; and the fuel oil supply pump 9 is arranged on the frame, so that the vibration influence caused by the operation of the engine is greatly reduced, and the service life of the fuel oil supply pump 9 is prolonged.
In a preferred embodiment, as shown in fig. 1, 2 and 3, the connection between the oil supply steel pipe 2 and the oil supply rubber pipe 31 and the connection between the oil return steel pipe 12 and the total oil return rubber pipe 112 are clamped by a clamp, so that the connection between the corresponding two parts is clamped by the clamp.
The working principle of the utility model is as follows: when in use, the oil supply way is as follows: the oil in the oil tank of the vehicle body sequentially passes through a coarse filter 1, then flows to a diesel oil separator 8 along an oil outlet steel pipe 2 and an oil supply rubber pipe I31, then flows to a fuel oil supply pump 9 along an oil supply rubber pipe II 32, then flows to a diesel oil fine filter 10 along an oil supply rubber pipe III 33, and finally flows to a fuel oil inlet of the engine along an oil supply pipe IV 34;
oil return oil way: the surplus oil pumped by the fuel system flows to the pipeline tee 13 through the engine oil return rubber pipe 111, the diesel fine filter 10 flows the surplus oil to the one-way valve 141 through the one-way oil return rubber pipe 142, the one-way valve 141 ensures the one-way flow of the oil, so that the oil flows to the pipeline tee 13 from the one-way oil return rubber pipe 143, and then both oil return passages flow back to the oil return steel pipe 12 from the pipeline tee 13 along the total oil return rubber pipe 112, and finally flow back to the oil tank along the oil return steel pipe 12.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The fuel system of the diesel engine comprises a strainer (1), an oil outlet steel pipe (2) connected with the strainer (1), an oil supply rubber pipe (3), a fuel tank cover plate (4), a bolt fastener (5), an oil quantity sensor (6) and a screw fastener (7), wherein the fuel tank cover plate (4) is fixedly arranged on a vehicle body fuel tank through the bolt fastener (5), and the oil quantity sensor (6) is fixedly arranged on the fuel tank cover plate (4) through the screw fastener (7); the oil outlet steel pipe (2) is fixedly arranged on the fuel tank cover plate (4), and is characterized in that:
the oil supply hose (3) comprises: the oil supply pipe I (31), the oil supply pipe II (32), the oil supply pipe III (33) and the oil supply pipe IV (34); the fuel tank is characterized in that the fuel outlet steel pipe (2) penetrates through one end of the fuel tank cover plate (4) and one end of the fuel supply rubber pipe I (31) to be connected, the other end of the fuel supply rubber pipe I (31) is fixedly connected with the diesel oil separator (8), the diesel oil separator (8) is connected with the fuel supply pump (9) through the fuel supply rubber pipe II (32), the fuel supply pump (9) is connected with the diesel oil fine filter (10) through the fuel supply rubber pipe III (33), and the diesel oil fine filter (10) is connected with a fuel inlet of an engine through the fuel supply pipe IV (34).
2. A fuel system for a diesel engine as set forth in claim 1, wherein: the fuel system further comprises: the oil return rubber pipe (11) and oil return steel pipe (12) that are connected with the oil tank, oil return steel pipe (12) fixed mounting is on fuel tank apron (4), oil return rubber pipe (11) include: an engine oil return rubber pipe (111) and a total oil return rubber pipe (112); one end of an engine oil return rubber pipe (111) is connected with an engine oil return port, the other end of the engine oil return rubber pipe (111) is connected with a pipeline tee joint (13), a one-way oil return mechanism (14) is arranged between one end of the pipeline tee joint (13) and a diesel oil fine filter (10), one end of the pipeline tee joint (13) is connected with a total oil return rubber pipe (112), and the other end of the total oil return rubber pipe (112) is connected with one end of an oil return steel pipe (12) penetrating through a fuel tank cover plate (4).
3. A fuel system for a diesel engine as set forth in claim 2, wherein: the one-way oil return mechanism (14) comprises: the diesel oil fine filter (10) is connected with the one-way valve (141) through the one-way oil return rubber pipe (142), the other end of the one-way valve (141) is connected with one end of the pipeline tee joint (13) through the one-way oil return rubber pipe (143), and the flow direction of the one-way valve (141) is set to be that the one-way oil return rubber pipe (142) flows to the one-way oil return rubber pipe (143).
4. A fuel system for a diesel engine as set forth in claim 1, wherein: the diesel-water separator (8), the fuel oil supply pump (9) and the diesel fine filter (10) are fixedly arranged on a mounting plate (15), and the mounting plate (15) is fixedly arranged on the frame.
5. A fuel system for a diesel engine as set forth in claim 2, wherein: the joint of the oil outlet steel pipe (2) and the oil supply rubber pipe I (31) and the joint of the oil return steel pipe (12) and the total oil return rubber pipe (112) are clamped through clamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322306593.1U CN220687467U (en) | 2023-08-25 | 2023-08-25 | Fuel system of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322306593.1U CN220687467U (en) | 2023-08-25 | 2023-08-25 | Fuel system of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220687467U true CN220687467U (en) | 2024-03-29 |
Family
ID=90376877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322306593.1U Active CN220687467U (en) | 2023-08-25 | 2023-08-25 | Fuel system of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220687467U (en) |
-
2023
- 2023-08-25 CN CN202322306593.1U patent/CN220687467U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |