CN103967664A - Engineering machinery, fuel oil system of engineering machinery and fuel oil filtering method - Google Patents
Engineering machinery, fuel oil system of engineering machinery and fuel oil filtering method Download PDFInfo
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- CN103967664A CN103967664A CN201410203338.7A CN201410203338A CN103967664A CN 103967664 A CN103967664 A CN 103967664A CN 201410203338 A CN201410203338 A CN 201410203338A CN 103967664 A CN103967664 A CN 103967664A
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- oil
- filter
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- fuel oil
- motor
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Abstract
The invention discloses engineering machinery, a fuel oil system of the engineering machinery and a fuel oil filtering method. The fuel oil system of the engineering machinery comprises a fuel oil tank, a first filter, an engine and an oil pump used for providing oil for the engine. An oil outlet of the fuel oil tank is connected with an oil inlet of the first filter. An oil outlet of the first filter is connected with an oil inlet of the oil pump. An oil returning port of the engine is connected with the oil inlet of the first filter and an oil returning port of the fuel oil tank. According to the fuel oil system of the engineering machinery, the foreign matter and water content in fuel oil of an inlet portion of the engine can be greatly reduced, the service life of an oil spraying system of the engine can be greatly prolonged, and protection of the engine is enhanced.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of engineering machinery and oil-fired system thereof and fuel oil filter method.
Background technique
Fuel oil is being played the part of very important role in engineering machinery.Generally need to take necessary measure to reduce the impurity in fuel oil (as diesel oil), keep the clean of motor, make motor for a long time in good working order.
More existing machinery install grade one filter additional in own oil-fired system, but do not reach good effect, grade one filter can only filter a part of impurity, and moisture filter very little, and some moisture also can enter oil-fired system to be caused normally working.For addressing the above problem, as shown in Figure 1, the patent application (application number is CN201310003382) that name is called " engineering machinery fuel oil pre-filtrating equipment " discloses a kind of engineering machinery fuel oil pre-filtrating equipment, and it comprises: motor 1, primary fuel case 2, oil and water seperator 3, oil transfer pump 4 and main fuel reservoir 5.Particularly; the fuel oil that oil transfer pump 4 is exported is delivered to primary fuel case 2 after oil and water seperator 3 filters; be motor 1 fuel feeding by primary fuel case 2; the oil return of motor 1 is also received to this primary fuel case 2 simultaneously; the fuel oil that the clean fuel oil of returning from motor 1 thus and oil and water seperator 3 export mixes primary fuel case 2; thereby foreign matter and moisture content in the fuel oil of minimizing motor 1 ingress, play the effect of protection motor 1
But above-mentioned patent application is by simple diluting effect, can not significantly reduce foreign matter and moisture content in the fuel oil that enters motor, the poor effect of protection motor, in addition, need to increase primary fuel case, and total is arranged very loaded down with trivial details.
Summary of the invention
In view of this, the present invention proposes a kind of engineering machinery and oil-fired system thereof, to realize foreign matter and the moisture content that can reduce greatly in the fuel oil of motor ingress, and then the life-span of the injection system of prolongation motor.
On the one hand, the invention provides a kind of engineering machinery fuel oil system, comprise: fuel tank, the first filter, motor and be used to the oil pump of described engine oil, the oil outlet of described fuel tank connects the filler opening of described the first filter, the oil outlet of described the first filter connects the filler opening of described oil pump, and the return opening of described motor connects the filler opening of described the first filter and the return opening of described fuel tank.
Further, described engineering machinery fuel oil system also comprises: switch valve, described switch valve is arranged on the oil circuit between the return opening of described motor and the filler opening of described the first filter.
Further, described engineering machinery fuel oil system also comprises: the first three-way pipe and the second three-way pipe, the first end of described the first three-way pipe connects the oil outlet of described fuel tank by the first oil circuit, the second end of described the first three-way pipe connects the filler opening of described the first filter by the second oil circuit, the 3rd end of described the first three-way pipe connects the first end of the second three-way pipe, the second end of described the second three-way pipe connects the return opening of described fuel tank, and the 3rd end of described the second three-way pipe connects the return opening of described motor; Described switch valve is arranged on the oil circuit between the 3rd end and the first end of described the second three-way pipe of described the first three-way pipe.
Further, described switch valve is manual switch valve, pneumatic on-off valve or electromagnetic switch valve.
Further, described engineering machinery fuel oil system also comprises the second filter, and the filler opening of described the second filter connects the oil outlet of described oil pump, and the oil outlet of described the second filter connects the filler opening of described motor.
On the other hand, the invention provides a kind of engineering machinery, be provided with described engineering machinery fuel oil system.
Further, described engineering machinery is excavator.
Again on the one hand,, the invention provides a kind of engineering machinery fuel oil filter method, comprising: the fluid in fuel tank, after the first filter filters, is delivered to motor; In the time of described engine operation, the fluid of the return opening of described motor is delivered to the filler opening of described the first filter, and is delivered to described motor after filtering by described the first filter.
Further, described engineering machinery fuel oil filter method also comprises: in the time of the oil-fired system exhaust of engineering machinery, the fluid of the return opening of described motor is back to the return opening of described fuel tank.
Further, described engineering machinery fuel oil filter method at fluid after described the first filter filters and be delivered between motor and also comprise: by the second filter, fluid is carried out to filter operation.
Engineering machinery fuel oil system of the present invention is received the clean engine oil return after the first filter filters the filler opening of the first filter; after mixing with the fuel oil of fuel tank oil outlet, send into motor through the first filter; because engine oil return has certain pressure; so major part is clean engine oil return in miscella; the fuel oil of coming from fuel tank is less; thereby can significantly improve the turbidity test of the fuel oil of supply engine; effectively protect motor injection system, extend the working life of motor.
This project machinery has above-mentioned engineering machinery fuel oil system and engineering machinery fuel oil filter method, also has corresponding technique effect, repeats no more.
Brief description of the drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of existing engineering machinery fuel oil system;
The structural representation of the engineering machinery fuel oil system that Fig. 2 provides for the embodiment of the present invention one;
The structural representation of the engineering machinery fuel oil system that Fig. 3 provides for the embodiment of the present invention two.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Fig. 2 provides the structural representation of one engineering machinery fuel oil system for the embodiment of the present invention; As shown in Figure 2, the present embodiment engineering machinery fuel oil system can comprise: fuel tank 10, the first filter 11, oil pump 12 and motor 13, wherein, oil pump 12 is used to described motor 13 fuel feeding, the oil outlet of described fuel tank 10 connects the filler opening of described the first filter 11, the oil outlet of described the first filter 11 connects the filler opening of described oil pump 12, and the return opening of described motor 13 connects the filler opening of described the first filter 11 and the return opening of described fuel tank 10.
Preferably, described engineering machinery fuel oil system also comprises the second filter 17, and the filler opening of described the second filter 17 connects the oil outlet of described oil pump 12, and the oil outlet of described the second filter 17 connects the filler opening of described motor 13.Can further filter the fluid of oil pump 12 oil outlets by the second filter 17, and directly the fluid after filtering is directly delivered to motor 13, can further improve the turbidity test of fluid, protect better motor 13.
The present embodiment is received the clean engine oil return after the first filter 11 and the second filter 17 filter the filler opening of the first filter 11; after mixing with the fuel oil of fuel tank 10 oil outlets, send into motor 13 through the first filter 11 and the second filter 17; because engine oil return has certain pressure; so major part is clean engine oil return in miscella; the fuel oil of coming from fuel tank 10 is less; thereby can significantly improve the turbidity test of the fuel oil of supply engine 13; effectively protect motor injection system, extend the working life of motor 13.
Fig. 3 provides the structural representation of two engineering machinery fuel oil system for the embodiment of the present invention, the present embodiment and difference embodiment illustrated in fig. 2 be mainly: on the oil circuit between the return opening of described motor 13 and the filler opening of described the first filter 11, be also provided with switch valve 14, be that oil circuit between the return opening of described motor 13 and the filler opening of described the first filter 11 is not the state of normal open, can optionally disconnect, during as the oil-fired system exhaust of engineering machinery, can cut-off switch valve 14, make the fluid of the return opening of described motor 13 all flow into the return opening of fuel tank 10, thereby avoid air to circulate in oil-fired system, and then avoid extending the time of oil-fired system exhaust.When specific operation, switch valve 14 can be manual switch valve, pneumatic on-off valve or electromagnetic switch valve etc., specifically can control the action of switch valve 14 by mode manually or automatically.
In addition, in order to make each oil circuit connect more convenient and better tightness, described engineering machinery fuel oil system also comprises: the first three-way pipe 15 and the second three-way pipe 16, the first end of described the first three-way pipe 15 connects the oil outlet of described fuel tank 10 by the first oil circuit, the second end of described the first three-way pipe 15 connects the filler opening of described the first filter 11 by the second oil circuit, the 3rd end of described the first three-way pipe 15 connects the first end of the second three-way pipe 16, the second end of described the second three-way pipe 16 connects the return opening of described fuel tank 10, the 3rd end of described the second three-way pipe 16 connects the return opening of described motor 13, described switch valve 14 is arranged on the oil circuit between the 3rd end and the first end of described the second three-way pipe 16 of described the first three-way pipe 15.
The present embodiment is by being directly connected to the filler opening of the first filter through the clean fuel oil of double-filtration; can significantly reduce foreign matter and the moisture content in the fuel oil of motor ingress (being engine oil inlet mouth) by the diluting effect of clean fuel oil; can greatly extend the life-span of the injection system of motor, strengthen the protection to motor.
The present invention also provides a kind of engineering machinery that described engineering machinery fuel oil system is set.Particularly, this project machinery can be excavator.This project machinery has the corresponding technique effect of above-mentioned engineering machinery fuel oil system.
The present invention also provides a kind of engineering machinery fuel oil filter method, and it can be realized by the oil-fired system of above-mentioned engineering machinery, and this filter method comprises:
Fluid in fuel tank, after the first filter filters, is delivered to motor;
In the time of described engine operation, the fluid of the return opening of described motor is delivered to the filler opening of described the first filter, and is delivered to described motor after filtering by described the first filter.
Preferably, described engineering machinery fuel oil filter method also comprises: in the time of the oil-fired system exhaust of engineering machinery, the fluid of the return opening of described motor is back to the return opening of described fuel tank.When the concrete oil-fired system exhaust as engineering machinery, this optimal way can make the fluid of the return opening of described motor 13 all flow into the return opening of fuel tank 10, avoid air to circulate in oil-fired system, and then avoid extending the time of oil-fired system exhaust.
Further preferably, described engineering machinery fuel oil filter method at fluid after described first filters and be delivered between motor and also comprise: by the second filter, fluid is carried out to filter operation.Can further filter fluid by the second filter, and directly the fluid after filtering is directly delivered to motor, can further improve the turbidity test of fluid, protect better motor.
The present embodiment is directly connected to the clean fuel oil after filtering the filler opening of the first filter; can significantly reduce foreign matter and the moisture content in the fuel oil of motor ingress (being engine oil inlet mouth) by the diluting effect of clean fuel oil; can greatly extend the life-span of the injection system of motor, strengthen the protection to motor.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an engineering machinery fuel oil system, comprise fuel tank (10), the first filter (11), motor (13) and be used to the oil pump (12) of described motor (13) fuel feeding, it is characterized in that, the oil outlet of described fuel tank (10) connects the filler opening of described the first filter (11), the oil outlet of described the first filter (11) connects the filler opening of described oil pump (12), and the return opening of described motor (13) connects the filler opening of described the first filter (11) and the return opening of described fuel tank (10).
2. engineering machinery fuel oil system according to claim 1, it is characterized in that, also comprise: switch valve (14), described switch valve (14) is arranged on the oil circuit between the return opening of described motor (13) and the filler opening of described the first filter (11).
3. engineering machinery fuel oil system according to claim 2, it is characterized in that, also comprise: the first three-way pipe (15) and the second three-way pipe (16), the first end of described the first three-way pipe (15) connects the oil outlet of described fuel tank (10) by the first oil circuit, the second end of described the first three-way pipe (15) connects the filler opening of described the first filter (11) by the second oil circuit, the 3rd end of described the first three-way pipe (15) connects the first end of the second three-way pipe (16), the second end of described the second three-way pipe (16) connects the return opening of described fuel tank (10), the 3rd end of described the second three-way pipe (16) connects the return opening of described motor (13), described switch valve (14) is arranged on the oil circuit between the 3rd end of described the first three-way pipe (15) and the first end of described the second three-way pipe (16).
4. engineering machinery fuel oil system according to claim 3, is characterized in that, described switch valve (14) is manual switch valve, pneumatic on-off valve or electromagnetic switch valve.
5. according to the engineering machinery fuel oil system described in any one in claim 1-4, it is characterized in that, also comprise the second filter (17), the filler opening of described the second filter (17) connects the oil outlet of described oil pump (12), and the oil outlet of described the second filter (17) connects the filler opening of described motor (13).
6. an engineering machinery, is characterized in that, is provided with the engineering machinery fuel oil system as described in any one in claim 1-5.
7. engineering machinery according to claim 6, is characterized in that, it is excavator.
8. an engineering machinery fuel oil filter method, is characterized in that, comprising:
Fluid in fuel tank, after the first filter filters, is delivered to motor;
In the time of described engine operation, the fluid of the return opening of described motor is delivered to the filler opening of described the first filter, and is delivered to described motor after filtering by described the first filter.
9. engineering machinery fuel oil filter method according to claim 8, is characterized in that, also comprises:
In the time of the oil-fired system exhaust of engineering machinery, the fluid of the return opening of described motor is back to the return opening of described fuel tank.
10. engineering machinery fuel oil filter method according to claim 9, is characterized in that, at fluid after described the first filter filters and be delivered between motor and also comprise:
By the second filter, fluid is carried out to filter operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203338.7A CN103967664A (en) | 2014-05-14 | 2014-05-14 | Engineering machinery, fuel oil system of engineering machinery and fuel oil filtering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203338.7A CN103967664A (en) | 2014-05-14 | 2014-05-14 | Engineering machinery, fuel oil system of engineering machinery and fuel oil filtering method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103967664A true CN103967664A (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203338.7A Pending CN103967664A (en) | 2014-05-14 | 2014-05-14 | Engineering machinery, fuel oil system of engineering machinery and fuel oil filtering method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410248A (en) * | 2019-06-19 | 2019-11-05 | 三一重机有限公司 | Engine fuel oil system and engineering machinery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478197A (en) * | 1981-10-12 | 1984-10-23 | Nissan Motor Company | Fuel supply apparatus for a diesel engine |
| US5085198A (en) * | 1989-08-04 | 1992-02-04 | Lucas Industries Public Limited Company | Low pressure fuel supply system for a fuel injection pump |
| US20090235896A1 (en) * | 2006-06-27 | 2009-09-24 | Georg Gruber | Diesel Cycle Internal Combustion Engine |
| CN101576037A (en) * | 2008-05-06 | 2009-11-11 | 株式会社电装 | Fuel supply apparatus |
| CN102359426A (en) * | 2011-09-08 | 2012-02-22 | 力帆实业(集团)股份有限公司 | Fuel supplying system for electric-injection motorcycle |
-
2014
- 2014-05-14 CN CN201410203338.7A patent/CN103967664A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478197A (en) * | 1981-10-12 | 1984-10-23 | Nissan Motor Company | Fuel supply apparatus for a diesel engine |
| US5085198A (en) * | 1989-08-04 | 1992-02-04 | Lucas Industries Public Limited Company | Low pressure fuel supply system for a fuel injection pump |
| US20090235896A1 (en) * | 2006-06-27 | 2009-09-24 | Georg Gruber | Diesel Cycle Internal Combustion Engine |
| CN101576037A (en) * | 2008-05-06 | 2009-11-11 | 株式会社电装 | Fuel supply apparatus |
| CN102359426A (en) * | 2011-09-08 | 2012-02-22 | 力帆实业(集团)股份有限公司 | Fuel supplying system for electric-injection motorcycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410248A (en) * | 2019-06-19 | 2019-11-05 | 三一重机有限公司 | Engine fuel oil system and engineering machinery |
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Application publication date: 20140806 |
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