CN101545426B - Fuel supply system - Google Patents
Fuel supply system Download PDFInfo
- Publication number
- CN101545426B CN101545426B CN 200910095250 CN200910095250A CN101545426B CN 101545426 B CN101545426 B CN 101545426B CN 200910095250 CN200910095250 CN 200910095250 CN 200910095250 A CN200910095250 A CN 200910095250A CN 101545426 B CN101545426 B CN 101545426B
- Authority
- CN
- China
- Prior art keywords
- filter
- fuel
- supply system
- fuel injector
- fuel oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000446 fuel Substances 0.000 title claims abstract description 47
- 239000002828 fuel tank Substances 0.000 claims abstract description 13
- 239000000295 fuel oil Substances 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 7
- 239000011800 void material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a fuel supply system, which belongs to the technical field of engine (internal combustion engine) fuel supply. The fuel supply system comprises a fuel tank, a first filter, a second filter and a fuel injector, and is characterized in that the second filter is positioned in the fuel injector, and the gap size of the first filter is less than that of the second filter. The fuel supply system can improve the service life of the fuel injector to the utmost extent while ensuring good filter effect.
Description
Technical field
The invention belongs to a kind of motor (internal-combustion engine) fuel delivery technical field, particularly a kind of fuel oil supply system with fine structure fuel injector that is applicable to.
Background technique
A kind of pulsating electronic fuel injection system of being used widely is (as Chinese patent ZL01103954.X, and Japan Patent 2003-83192) in, fuel oil directly obtains from fuel tank, owing to contain more impurity in the commercial gasoline, the long-term back interior iron rust of fuel tank that uses also increases gradually, and in a single day materials such as these impurity, iron rust enter fuel injector and will cause great harm to sparger.These spargers contain precision pair usually, therefore oarse-grained impurity or iron rust very easily cause damage with precision pair, how to guarantee that it is a key that guarantees this fuel injection system reliable operation that impurity in the fuel oil or iron rust do not cause big harm to fuel injector.
The way that in the past addressed this problem normally increases together or several roads fuel oil filter at the fuel delivery passage, and this several roads filter is arranged use according to elder generation's smart mode in thick back, but all has certain problem at filtering effect and on working life in practical application.Wherein common a kind of structure is to contain multi-filter in the outer oil circuit of fuel injector, though the filter capacity of these filters is higher, but in use often because the assembly problem of filter makes the oarse-grained impurity filtered of part equipment just enter fuel injection apparatus, these impurity will cause fatal harm to sparger, because sparger is independent parts, also brings impurity into easily during sparger and aggravate this problem in assembling in addition.For addressing this problem, another kind of common structure be to increase littler with exterior hole or hole one filter in fuel injector, even if making like this has large granular impurity because assembly problem enters the filter blocks of sparger in also can injected device, be unlikely to sparger is damaged immediately.But since at filter in injector body, its volume is less usually, all will be blocked in outside the filter of sparger through the molecule behind the external filter and the large particle that produces because of assembly problem like this, the foul that long-term work causes the accumulation of this place too much and blocking filter, work causes tremendous influence to sparger at last, again because this filter and sparger are an integral body, can't dismounting or cleaning, greatly reduce the working life of sparger like this.
Summary of the invention
At the problems referred to above, the present invention proposes a kind of fuel oil supply system with fine structure fuel injector that is applicable to, when guaranteeing the monolithic filter effect, increased the working life of sparger again greatly.
This purpose is to reach by following technology, namely in this fuel oil supply system, comprises a fuel tank, first filter, second filter and fuel injector.Second filter places in the fuel injector body, and the pore-size of first filter is less than second filter.
The pore size of second filter designs according to fuel injector in the fuel oil supply system of the present invention, feasible fuel oil and impurity by second filter all can not damage sparger by fuel injector smoothly, in other words, anyly can not pass through second filter to the particulate matter that fuel injector impacts.The filter capacity of first filter is greater than second filter in fuel oil supply system of the present invention, all can pass through second filter by fuel oil and the minute impurities of first filter like this, make second filter can not accumulate too much impurity because of long-term work and cause stopping up fuel injector.
In the above-mentioned fuel oil supply system, first filter can also can be positioned within the fuel tank between fuel tank and fuel injector, and this filter can conveniently be replaced or clean.
In the above-mentioned fuel oil supply system, second filter is a gauze filter, and it places in the fuel injector and cannot change usually.
In the above-mentioned fuel oil supply system, first filter can be paper filter, or metal filtering core, can also be the macromolecular filtering device.
Above-mentioned fuel oil is in the system, and first filter can be that the single layer filter device also can be multi-filter, and the minimum hole of its filter is less than the hole of second filter.
The advantage of the present invention's fuel supply system is: described fuel supply system can improve fuel injector to greatest extent when guaranteeing good filtering effect working life.Because the filter precision of second filter is less than first filter, so second filter can not accumulate the minute impurities that sees through first filter, reduced greatly by possibility of jamming, the hole of second filter designs according to the needs of fuel injector, makes the large granular impurity that enters in the fuel injector because of problems such as assemblings to be stopped by second filter.
In sum, the large particle thing that only enters fuel injector too much arrives and stops up second filter, so just can cause the inefficacy of fuel injector, so can be enhanced the life-span of sparger to greatest extent.
Description of drawings
Fig. 1 has schematically illustrated first embodiment of the present invention.
Fig. 2 has schematically illustrated second embodiment of the present invention.
Fig. 3 has schematically illustrated the 3rd embodiment of the present invention.
Embodiment
Further specify fuel supply system of the present invention below in conjunction with accompanying drawing.
Embodiment 1:
Fig. 1 is a kind of embodiment of the present invention's fuel supply system, and this system has fuel tank 1, the first filter 2 and fuel injector 4 as shown in the figure, comprises second filter 3 in addition in the fuel injector.The hole of first filter 2 is less than second filter 3.
Embodiment 2:
Fig. 2 is the another kind of embodiment of the present invention's fuel supply system, as shown in the figure, with embodiment's 1 difference be that first filter 2 is positioned at fuel tank 1.
Embodiment 3:
Fig. 3 is the another kind of embodiment of the present invention's fuel supply system, as shown in the figure, with embodiment's 2 differences be that first filter 2 is a multi-filter, it comprises a coarse-grain filtering device 2a and an accurate filter 2b.The hole of coarse-grain filtering device 2a is greater than accurate filter 2b, and the hole of accurate filter 2b is less than the hole of second filter 3.
Claims (7)
1. a fuel oil supply system comprises fuel tank, first filter, second filter and fuel injector, it is characterized in that: second filter places in the fuel injector body, and the void size of first filter is less than second filter.
2. fuel oil supply system according to claim 1, it is characterized in that: first filter bits is between fuel tank and sparger.
3. fuel oil supply system according to claim 1, it is characterized in that: first filter bits is within fuel tank.
4. as fuel oil supply system as described in right 2 or 3, it is characterized in that: second filter is a gauze filter.
5. as fuel oil supply system as described in the claim 4, it is characterized in that: first filter is paper filter.
6. as fuel oil supply system as described in the claim 4, it is characterized in that: first filter is macromolecular filtering.
7. fuel oil supply system according to claim 1, it is characterized in that: first filter is the combination of a multi-filter, and the minimum aperture of its filter is less than the space of second filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910095250 CN101545426B (en) | 2009-01-05 | 2009-01-05 | Fuel supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910095250 CN101545426B (en) | 2009-01-05 | 2009-01-05 | Fuel supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101545426A CN101545426A (en) | 2009-09-30 |
| CN101545426B true CN101545426B (en) | 2013-07-17 |
Family
ID=41192752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910095250 Expired - Fee Related CN101545426B (en) | 2009-01-05 | 2009-01-05 | Fuel supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101545426B (en) |
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2009
- 2009-01-05 CN CN 200910095250 patent/CN101545426B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101545426A (en) | 2009-09-30 |
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Owner name: SHAOXING PINGGUO ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG FAI ELECTRONICS CO., LTD. Effective date: 20110624 |
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Effective date of registration: 20110624 Address after: 312300, No. 299, Haibin Avenue, Lek Hai Town, Shaoxing Binhai New Town, Zhejiang, Shaoxing, 105 Applicant after: Shaoxing Pingguo Electronics Technology Co.,Ltd. Address before: 310018 No. fourteenth, No. 17-1, Hangzhou Economic Development Zone, Hangzhou, Zhejiang Applicant before: Zhejiang FAI Electronics Co., Ltd. |
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Owner name: ZHEJIANG FAI ELECTRONICS CO., LTD. Free format text: FORMER OWNER: SHAOXING PINGGUO ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20130320 |
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Effective date of registration: 20130320 Address after: 310013, room 413, 612 Pier Road, Hangzhou, Zhejiang, Xihu District Applicant after: Zhejiang FAI Electronics Co., Ltd. Address before: 312300, No. 299, Haibin Avenue, Lek Hai Town, Shaoxing Binhai New Town, Zhejiang, Shaoxing, 105 Applicant before: Shaoxing Pingguo Electronics Technology Co.,Ltd. |
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Owner name: SAIERFU (XIAMEN) INDUSTRY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG FAI ELECTRONICS CO., LTD. Effective date: 20130625 |
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Effective date of registration: 20130625 Address after: Dongpu road Xiamen City, Fujian province 361007 Siming District No. 22 two floor Applicant after: Saierfu (Xiamen) Industry Co., Ltd. Address before: 310013, room 413, 612 Pier Road, Hangzhou, Zhejiang, Xihu District Applicant before: Zhejiang FAI Electronics Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20180105 |