CN213928595U - Natural suction type common rail diesel engine oil supply device - Google Patents
Natural suction type common rail diesel engine oil supply device Download PDFInfo
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- CN213928595U CN213928595U CN202022613391.8U CN202022613391U CN213928595U CN 213928595 U CN213928595 U CN 213928595U CN 202022613391 U CN202022613391 U CN 202022613391U CN 213928595 U CN213928595 U CN 213928595U
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Abstract
A natural aspiration type common rail diesel engine oil supply device includes: the device comprises an electric pump bracket, an electric diesel pump assembly, a 08-type oil pump, a fuel filter, a high-pressure oil pipe bracket, a high-pressure oil pipe, a non-return oil high-pressure common rail pipe assembly, a common rail pipe support plate, an oil injector return pipe part and a water circulation type machine cooler; the electric diesel pump assembly is fixed on the electric pump bracket, the 08-type oil pump is connected with the non-return oil high-pressure common rail pipe assembly through the high-pressure oil pipe, the non-return oil high-pressure common rail pipe assembly and the fuel filter are fixed on the common rail pipe supporting plate, and the water circulation type engine cooler is connected with the diesel engine cylinder body. The device cancels an oil rail oil return pipe, an oil pump flange, an oil return block and an oil return block bracket, adopts a split electric pump and a double-cup fuel filter, and does not need a matched host manufacturer to increase a link of fixing an oil-water separator; the original electronic fuel delivery pump and coarse filtration integrated structure is changed into a split type electric pump structure, so that the structure is more compact and reasonable, the fuel economy is improved, and the economic cost of the diesel engine is reduced.
Description
Technical Field
The utility model belongs to the internal-combustion engine field relates to a natural aspiration type common rail diesel engine oil supply unit.
Background
At present, most of medium and small power four-cylinder machines on the common rail diesel engine adopt 18-type oil supply pumps, the size of an oil pump body is large, the oil supply capacity is strong, but for the small-displacement diesel engine, the space structure is complex, and the overall layout is messy; although the built-in machine cooler is simple to install, the cost is high, and the maintenance space and the maintenance cost are not as good as those of a water circulation type machine cooler. In addition, in the prior art, most common rail diesel engines adopt a coarse filtration and electronic pump integrated structure, although the structure is compact, the electronic oil delivery pump is easy to damage, the oil delivery pump assembly needs to be replaced, and the later service cost is high.
The national intellectual property office in the utility model patent of 2020.05.19 grant "split type fuel supply system 201921672941.4 of single cylinder common rail diesel engine", the application date: 2019.10.09, the utility model is relatively close to the content of the application. The utility model discloses a include: the system comprises a fuel tank, a low-pressure fuel pump, an oil-water separator, a fuel filter, a high-pressure fuel pump, a high-pressure fuel rail, a common rail fuel injector and a single-cylinder common rail machine; the low-pressure fuel pump is connected with the fuel tank and used for supplying fuel; the output end of the low-pressure fuel pump is subjected to oil-water separation through an oil-water separator, and fuel output by the oil-water separator is filtered by a filter, then input into the high-pressure fuel pump for secondary pressurization, and then sequentially input into the high-pressure fuel rail and the common rail oil injector to supply oil for the single-cylinder common rail engine. The utility model discloses a structure is comparatively complicated, and spare part damage appears easily in use.
In summary, a natural suction type common rail oil supply device for a diesel engine is developed, wherein a 08-type oil supply pump is adopted, an integral electric pump is changed into an electronic oil transfer pump and a coarse filtration split type, an internal mechanical cooler is changed into an external water circulation type mechanical cooler, a non-return oil high-pressure oil rail is adopted, and an oil pump flange, a return oil block and a return oil block support are omitted. The structure improves the compactness of the structural layout of the diesel engine and reduces the later service and maintenance cost while reducing the cost of the diesel engine.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a natural aspiration type common rail diesel engine oil supply unit makes the diesel engine economic nature better, and the cost is lower, and the structure is compacter, and service maintenance is more convenient.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a natural aspiration type common rail diesel engine oil supply device includes: the device comprises an electric pump bracket, an electric diesel pump assembly, a 08-type oil pump, a fuel filter, a high-pressure oil pipe bracket, a high-pressure oil pipe, a non-return oil high-pressure common rail pipe assembly, a common rail pipe support plate, an oil injector return pipe part and a water circulation type machine cooler; the electric diesel pump assembly is fixed on the electric pump bracket, the 08-type oil pump is connected with the non-return oil high-pressure common rail pipe assembly through the high-pressure oil pipe, the non-return oil high-pressure common rail pipe assembly and the fuel filter are fixed on the common rail pipe supporting plate, and the water circulation type engine cooler is connected with the diesel engine cylinder body.
The electric diesel pump assembly is connected with the fuel filter through an oil pipe, and the fuel filter is connected with the 08-type oil pump through an oil pipe.
And an oil injector return pipe component is also arranged on the 08-type oil pump.
The high-pressure oil pipe is arranged on the high-pressure oil pipe support.
The utility model adopts the above technical scheme can reach following positive effect after: compared with the original structure, the oil rail oil return pipe, the oil pump flange, the oil return block and the oil return block support are eliminated, and meanwhile, a split type electric pump and a double-cup fuel filter are adopted, so that a step of fixing an oil-water separator is not required to be added by a host manufacturer matched with a diesel engine; the original electronic fuel delivery pump and rough filtering integrated structure is changed into a split type electric pump structure, so that the structure is more compact and reasonable, the fuel economy is improved, and the economic cost of the diesel engine is reduced; meanwhile, the later maintenance service cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the oil supply device of the natural suction type common rail diesel engine of the present invention.
The labels in the figure are: 1. the oil cooler comprises an electric pump support, 2 electric diesel pump assemblies, 3.08 type oil pumps, 4 fuel filters, 5 high-pressure oil pipe supports, 6 high-pressure oil pipes, 7 non-return oil high-pressure common rail pipe assemblies, 8 common rail pipe supporting plates, 9 oil injector return oil pipe components and 10 water circulation type machine coolers.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and embodiments. As shown in fig. 1, a natural suction type common rail diesel engine oil supply apparatus includes: the system comprises an electric pump bracket 1, an electric diesel pump assembly 2, a 08-type oil pump 3, a fuel filter 4, a high-pressure oil pipe bracket 5, a high-pressure oil pipe 6, a non-return oil high-pressure common rail pipe assembly 7, a common rail pipe supporting plate 8, an oil injector return pipe part 9 and a water circulation type machine cooler 10; the electric diesel pump assembly 2 is fixed on the electric pump support 1, and the electric pump support 1 is fixed on the cylinder body of the diesel engine. The 08-type oil pump 3 is connected with a common rail pipe supporting plate 8 through a high-pressure oil pipe 6, a non-return oil high-pressure common rail pipe assembly 7 and the fuel filter 4 are fixed on the common rail pipe supporting plate 8, and the common rail pipe supporting plate 8 is fixed on a cylinder cover. The water circulation type engine cooler 10 is connected with a cylinder body of the diesel engine and filters and cools the engine oil. The electric diesel pump assembly 2 is connected with a 08-type oil pump 3, and the electric diesel pump assembly 2 supplies oil to the 08-type oil pump 3. A fuel injector return pipe member 9 is also attached to the 08-type fuel pump 3. The high-pressure oil pipe 6 is arranged on the high-pressure oil pipe bracket 5. The 08-type oil pump 3 is fixed to a gear chamber of the diesel engine and is driven by a gear.
When the diesel engine oil-water separator works, fuel oil enters the fuel oil filter 4 through the electric diesel oil pump assembly 2, enters the 08-type oil pump 3 after being filtered, is pressurized in the 08-type oil pump 3, enters the non-return-oil high-pressure common rail pipe assembly 7 through the high-pressure oil pipe 6, is distributed to each cylinder of an oil injector through the high-pressure oil pipe 6, and redundant fuel oil returns to an oil tank through the oil injector return pipe part 9 (containing oil pump return oil).
The utility model discloses with former structure comparison, the oil pump diminishes, has cancelled high pressure common rail pipe oil return and oil return piece, oil return piece support, and former electron fuel delivery pump and colating integrated form structure change split type electric pump + two cups into and fire oil filter structure, make compact structure, convenient assembling, cost greatly reduced has also reduced later stage service cost of maintenance simultaneously, has improved economic nature in addition.
It should be noted that the practical application is not limited to the embodiment described in the present embodiment, and although the present invention has been described in detail with reference to the foregoing embodiment, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiment can be modified in forms or substituted with some technical features. All the modifications, equivalents and the like made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A natural aspiration type common rail diesel engine oil supply device includes: the device comprises an electric pump support (1), an electric diesel pump assembly (2), a 08-type oil pump (3), a fuel filter (4), a high-pressure oil pipe support (5), a high-pressure oil pipe (6), a non-return oil high-pressure common rail pipe assembly (7), a common rail pipe support plate (8), a fuel injector return pipe part (9) and a water circulation type machine cooler (10); the method is characterized in that: the electric diesel pump assembly (2) is fixed on the electric pump support (1), the 08-type oil pump (3) is connected with the non-return-oil high-pressure common-rail pipe assembly (7) through the high-pressure oil pipe (6), the non-return-oil high-pressure common-rail pipe assembly (7) and the fuel filter (4) are fixed on the common-rail pipe support plate (8), and the water circulation type engine cooler (10) is connected with a diesel engine cylinder body.
2. The naturally aspirated common rail diesel engine fuel supply device according to claim 1, wherein: the electric diesel pump assembly (2) is connected with the fuel filter (4) through an oil pipe, and the fuel filter (4) is connected with the 08-type oil pump (3) through the oil pipe.
3. The naturally aspirated common rail diesel engine fuel supply device according to claim 1, wherein: and an oil injector return pipe component (9) is also arranged on the 08-type oil pump (3).
4. The naturally aspirated common rail diesel engine fuel supply device according to claim 1, wherein: the high-pressure oil pipe (6) is arranged on the high-pressure oil pipe bracket (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022613391.8U CN213928595U (en) | 2020-11-12 | 2020-11-12 | Natural suction type common rail diesel engine oil supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022613391.8U CN213928595U (en) | 2020-11-12 | 2020-11-12 | Natural suction type common rail diesel engine oil supply device |
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| CN213928595U true CN213928595U (en) | 2021-08-10 |
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| CN202022613391.8U Active CN213928595U (en) | 2020-11-12 | 2020-11-12 | Natural suction type common rail diesel engine oil supply device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982898A (en) * | 2021-10-15 | 2022-01-28 | 芜湖钻石航空发动机有限公司 | Engine high-pressure oil pump fire resistance test tool |
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2020
- 2020-11-12 CN CN202022613391.8U patent/CN213928595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982898A (en) * | 2021-10-15 | 2022-01-28 | 芜湖钻石航空发动机有限公司 | Engine high-pressure oil pump fire resistance test tool |
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