CN204186519U - Diesel engine and oil supply system thereof - Google Patents
Diesel engine and oil supply system thereof Download PDFInfo
- Publication number
- CN204186519U CN204186519U CN201420664812.1U CN201420664812U CN204186519U CN 204186519 U CN204186519 U CN 204186519U CN 201420664812 U CN201420664812 U CN 201420664812U CN 204186519 U CN204186519 U CN 204186519U
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- China
- Prior art keywords
- oil
- diesel engine
- supply system
- oil supply
- high pressure
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Links
- 239000003921 oil Substances 0.000 claims abstract description 136
- 239000000446 fuel Substances 0.000 claims abstract description 19
- 239000010710 diesel engine oil Substances 0.000 claims description 15
- 239000002828 fuel tank Substances 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 8
- 239000000295 fuel oil Substances 0.000 abstract description 9
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 239000002912 waste gas Substances 0.000 abstract description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a kind of diesel engine and oil supply system thereof, oil supply system mesohigh oil pump is connected with oily rail respectively with oil sprayer, the generation of jet pressure and course of injection are separated completely, high pressure fuel is transported to oily rail by high pressure oil pump, realize accurately controlling by the oil pressure in oily rail, the rotating speed of tubing pressure size and motor is had nothing to do, significantly can reduce the degree that Fuel Injection Mechanism of Diesel Engine pressure changes with engine speed, thus realize oil supply system for engine continuous wellatomized fuel oil is stably provided, and then make the waste gas of the diesel engine emissions that above-mentioned oil supply system is housed reach higher standard.
Description
Technical field
The utility model belongs to diesel engine realm, particularly a kind of diesel engine and oil supply system thereof.
Background technique
The energy crisis be on the rise, becomes the focus that whole world internal-combustion engine industry is paid close attention to, and also makes diesel engine more and more be subject to user's favor.Diesel engine has a lot of advantage compared with petrol engine, such as, can reduce by the CO of 20% ~ 25%
2toxic emission, advantageously, average fuel consumes low by 25% ~ 30% the acceleration performance when speed of a motor vehicle is lower, can provide more Driving.But compared with petrol engine, the emission control of diesel engine is again a difficult point.
For diesel engine, due to current major part or mechanical type oil-fired system, and diesel engine direct injection technical development course is shorter, and thus, meet high emission standard like this as state V, diesel engine is very inaccessible.
Along with the development of electronic technology and engine art are to the introducing of electronic technology, diesel fuel oil supply system starts from mechanically controlled type to electronic control type System Development, and electronics oil supply system experienced by the development in position model oil supply system and time type oil supply system two kinds of different paths.But all there is a drawback in above-mentioned oil supply system, namely oil pump is two, one is motor, another is gear pump, when starting vehicle, after connecting circuit, motor is started working and to oil sprayer fuel feeding, when after engine running, the oil pump of oil supply system switches to gear pump, this gear pump is connected with motor, by engine-driving, by motor export power to oil sprayer fuel feeding, thus, Fuel Injection Mechanism of Diesel Engine pressure changes with engine speed, cause oil pressure unstable, be difficult to continue to provide wellatomized fuel oil to motor efficiently, and the emission standard of motor cannot be met, especially the standard that similar state V is such.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of oil supply system that stably can provide wellatomized fuel oil to engine continuous, and a kind of diesel engine making toxic emission reach higher standard.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of diesel engine oil supply system, comprising:
High pressure oil pump, is provided with oil inlet pipe and the first return tube, and described oil inlet pipe is connected with car load fuel tank with described first return tube;
Oil rail, it is connected with described high pressure oil pump by the first high-pressure oil pipe;
Oil sprayer, it is connected with described oily rail by the second high-pressure oil pipe.
Preferably, described oil sprayer is connected with described high pressure oil pump by the second return tube.
Preferably, the fuel pressure that described high pressure oil pump exports to described oily rail is 1800bar, and in this high pressure oil pump and diesel engine, the drive ratio of bent axle is 2:3.
Preferably, the spray orifice position of described oil sprayer is 8 × φ 0.131mm, and spray cone angle is 155 °, and this oil sprayer single cycle oil spout number of times is 5 times.
Preferably, described oil inlet pipe is connected with car load fuel tank by the first quick inserting interface, and described first return tube is connected with car load fuel tank by the second quick inserting interface, and the diameter of described first quick inserting interface is greater than the diameter of described second quick inserting interface.
Preferably, the diameter of described first quick inserting interface is φ 9.89mm, and the diameter of described second quick inserting interface is φ 7.89mm.
A kind of diesel engine, it is provided with the diesel engine oil supply system described in above-mentioned any one.
The utility model diesel engine oil supply system mesohigh oil pump is connected with oily rail respectively with oil sprayer, the generation of jet pressure and course of injection are separated completely, high pressure fuel is transported to oily rail by high pressure oil pump, realize accurately controlling by the oil pressure in oily rail, the rotating speed of tubing pressure size and motor is had nothing to do, significantly can reduce the degree that Fuel Injection Mechanism of Diesel Engine pressure changes with engine speed, thus realize oil supply system for engine continuous wellatomized fuel oil is stably provided, and then make the waste gas of the motor discharge that aforementioned oil supply system is housed reach higher standard.
Accompanying drawing explanation
The plan view of the diesel engine oil supply system that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the plan view of Fig. 1.
In Fig. 1 and Fig. 2, reference character is: oil sprayer 1, oily rail 2, first high-pressure oil pipe 3, high pressure oil pump 4, oil inlet pipe 5, first return tube 6, the 4th pipe clamp 7, second high-pressure oil pipe 8, second return tube 9, first pipe clamp 10, the 3rd pipe clamp 11, second pipe clamp 12.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As depicted in figs. 1 and 2, a kind of diesel engine oil supply system, comprising: eight oil sprayers 1, oily rail 2, high pressure oil pumps 4.Wherein, high pressure oil pump 4 is provided with oil inlet pipe 5 and the first return tube 6, oil inlet pipe 5 is connected with car load fuel tank with the first return tube 6, preferably, oil inlet pipe 5 is connected with car load fuel tank by the first quick inserting interface, first return tube 6 is connected with car load fuel tank by the second quick inserting interface, the diameter of the first quick inserting interface is greater than the diameter of the second quick inserting interface, the oil-feed flow velocity entering high pressure oil pump 4 is made to be greater than the fuel-displaced flow velocity flowing out high pressure oil pump 4, thus guarantee that high pressure oil pump 4 there will not be scarce oil condition to occur, avoid and damage is caused to high pressure oil pump 4.
Further preferably, the diameter of the first quick inserting interface is between φ 9mm ~ φ 10mm, the diameter of the second quick inserting interface is between φ 7mm ~ φ 8mm, in the present embodiment, preferably the diameter of the first quick inserting interface is φ 9.89mm, the diameter of the second quick inserting interface is φ 7.89mm, thus makes oil-feed flow velocity and fuel-displaced flow velocity reach an optimum balance, and now the efficiency of high pressure oil pump 4 is also the highest.
Oil rail 2 is connected with high pressure oil pump 4 with oily rail return tube respectively by the first high-pressure oil pipe 3, first high-pressure oil pipe 3 is for oily rail 2 fuel feeding, the oil return that oil rail return tube is used for oily rail flows to high pressure oil pump 4, preferably, the fuel pressure that high pressure oil pump 4 exports to oily rail 2 is between 1500bar ~ 1800bar, this high pressure oil pump 4 can select 3:5 also can select 2:3 with the drive ratio of bent axle in diesel engine, in the present embodiment, high pressure oil pump 4 is 1800bar to the fuel pressure that oily rail 2 exports, high pressure oil pump 4 is 2:3 with the drive ratio of bent axle in diesel engine, the cooperation of oil pressure like this and drive ratio, the best for oil condition of oil supply system can be made.Each oil sprayer 1 is connected with oily rail 2 respectively by corresponding with it second high-pressure oil pipe 8.Oil sprayer 1 preferably spray orifice position is 8 × φ 0.131mm, and spray cone angle is the oil sprayer of 155 °, and this kind of oil sprayer atomizing effect is best, and oil sprayer 1 single cycle oil spout number of times is 5 times, can meet the demand of motor to fuel oil like this, can reach again the object of fuel-economizing.In addition, oil sprayer 1 also can select spray orifice position to be 8 × φ 0.144mm, and spray cone angle is the oil sprayer of 147 °, selects this type of oil sprayer, because its injection diameter is comparatively large, in order to reach the object of fuel-economizing, then single cycle oil spout number of times can be reduced to 4 times.
Consider the problem of oil return of oil sprayer 1, each oil sprayer 1 can be connected with high pressure oil pump 4 by second return tube 9, structure like this, oil return is returned supply car load fuel tank by the return tube 6 of high pressure oil pump 4 by oil sprayer 1, both the oil return distance of oil sprayer 1 had been shortened, be connected with high pressure oil pump 4 by second return tube 9, oil pipe is too mixed and disorderly on the surface can not to make again high pressure oil pump 4, affects the layout of pipeline.
In order to the stable connection of oil pipe, the oil pipe in whole diesel engine oil supply system is fixed by pipe clamp.As shown in Figure 2, in figure, two second high-pressure oil pipes 8 on right side are fixed by the first pipe clamp 10, two second high-pressure oil pipes 8 on the left of in figure and the second return tube 9 are fixed by the second pipe clamp 12, and the first high-pressure oil pipe 3, second return tube 9 and oily rail return tube are fixed by the 3rd pipe clamp 11.As shown in Figure 1, the second return tube 9 and oily rail return tube are fixed by the 4th pipe clamp 7.
This oil supply system by the low pressure oil transfer pump in high pressure oil pump 4 continual fuel oil from car load fuel tank pump in the low-pressure cavity of high pressure oil pump 4, after oil pump 4 pressurizes, make fuel pressure maximum lift to 1800bar again, after being introduced into oily rail 2 by the first high-pressure oil pipe 3, fuel oil enters into oil sprayer 1 by the second high-pressure oil pipe 8 again, the signal that oil sprayer 1 provides according to ECU, high pressure fuel is sprayed onto in cylinder at regular time and quantity.When low-voltage fuel in the low-pressure cavity of high pressure oil pump 4 is too much, the fuel oil in unnecessary low-voltage fuel and oil sprayer 1 in hydraulic force servo system and oily rail 2 intermediate fuel oil get back to car load fuel tank by the first return line 6.
A kind of diesel engine, it is provided with diesel engine oil supply system.
This diesel engine oil supply system mesohigh oil pump 4 is connected with oily rail 2 respectively with oil sprayer 1, the generation of jet pressure and course of injection are separated completely, high pressure fuel is transported to oily rail 2 by high pressure oil pump 4, realize accurately controlling by the oil pressure in oily rail 2, the rotating speed of tubing pressure size and motor is had nothing to do, significantly can reduce the degree that Fuel Injection Mechanism of Diesel Engine pressure changes with engine speed, thus realize oil supply system for engine continuous wellatomized fuel oil is stably provided, and then make the waste gas of the motor discharge that aforementioned oil supply system is housed reach higher standard, as state V standard.
In sum, content of the present utility model is not limited in the above-described embodiments, and those skilled in the art can propose other mode of execution easily according to guiding theory of the present utility model, and these mode of executions are all included within scope of the present utility model.
Claims (7)
1. a diesel engine oil supply system, is characterized in that, comprising:
High pressure oil pump (4), is provided with oil inlet pipe (5) and the first return tube (6), and described oil inlet pipe (5) is connected with car load fuel tank with described first return tube (6);
Oil rail (2), it is connected with described high pressure oil pump (4) by the first high-pressure oil pipe (3);
Oil sprayer (1), it is connected with described oily rail (2) by the second high-pressure oil pipe (8).
2. diesel engine oil supply system according to claim 1, is characterized in that: described oil sprayer (1) is connected with described high pressure oil pump (4) by the second return tube (9).
3. diesel engine oil supply system according to claim 2, it is characterized in that: the fuel pressure that described high pressure oil pump (4) exports to described oily rail (2) is 1800bar, this high pressure oil pump (4) is 2:3 with the drive ratio of bent axle in diesel engine.
4. diesel engine oil supply system according to claim 3, is characterized in that: the spray orifice position of described oil sprayer (1) is 8 × φ 0.131mm, and spray cone angle is 155 °, and this oil sprayer (1) single cycle oil spout number of times is 5 times.
5. diesel engine oil supply system according to claim 4, it is characterized in that: described oil inlet pipe (5) is connected with car load fuel tank by the first quick inserting interface, described first return tube (6) is connected with car load fuel tank by the second quick inserting interface, and the diameter of described first quick inserting interface is greater than the diameter of described second quick inserting interface.
6. diesel engine oil supply system according to claim 5, is characterized in that: the diameter of described first quick inserting interface is φ 9.89mm, and the diameter of described second quick inserting interface is φ 7.89mm.
7. a diesel engine, is characterized in that: this diesel engine is provided with the diesel engine oil supply system according to any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664812.1U CN204186519U (en) | 2014-11-07 | 2014-11-07 | Diesel engine and oil supply system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664812.1U CN204186519U (en) | 2014-11-07 | 2014-11-07 | Diesel engine and oil supply system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186519U true CN204186519U (en) | 2015-03-04 |
Family
ID=52618528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420664812.1U Expired - Fee Related CN204186519U (en) | 2014-11-07 | 2014-11-07 | Diesel engine and oil supply system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186519U (en) |
-
2014
- 2014-11-07 CN CN201420664812.1U patent/CN204186519U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20191107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |