CN101603482B - Fuel supply structure for general gasoline engines - Google Patents
Fuel supply structure for general gasoline engines Download PDFInfo
- Publication number
- CN101603482B CN101603482B CN2009103048270A CN200910304827A CN101603482B CN 101603482 B CN101603482 B CN 101603482B CN 2009103048270 A CN2009103048270 A CN 2009103048270A CN 200910304827 A CN200910304827 A CN 200910304827A CN 101603482 B CN101603482 B CN 101603482B
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- carburetor
- fuel tank
- support
- suction tude
- air
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Abstract
The invention relates to a fuel supply structure for general gasoline engines, which comprises a fuel tank, a carburetor and an air filter. The structure is characterized in that one side of the fuel tank is arranged beside a cylinder head through a fuel tank bracket; the lower part of the fuel tank is supported by two support bolts connected with a crankcase body; the carburetor and the air filter are positioned below the fuel tank; one end of a mixed-gas outlet of the carburetor is communicated with an air inlet of the cylinder head through a rigid air inlet pipe; the carburetor is supported by an air inlet pipe; the air filter is connected with the carburetor through a bolt; an air inlet of the carburetor is communicated with the air filter; and an oil inlet of the carburetor is communicated with an oil outlet hole arranged on the bottom of the fuel tank. The invention has the advantages of ensuring compact layout of the fuel supply structure, increasing the overall aesthetic property of gasoline engines, improving fuel supply stability, replacing a gasoline pump with the air inlet pipe, reducing overall cost and improving cost performance.
Description
Technical field
The present invention relates to the general gasoline engines field, particularly a kind of fuel supply structure of general gasoline engines.
Background technique
The fuel oil supply system of the general gasoline engines of existing technology normally adopts is located at the motor upside with air-strainer and Carburetor; The position of fuel tank is lower than air-strainer and Carburetor; Fuel oil in the fuel tank passes through negative pressure transportation in Carburetor by a petrol pump that is provided with; The air mixing of sending into air-strainer forms combination gas, sends into the acting of engine cylinder internal combustion again and forms power.Because fuel feeding need rely on petrol pump to extract that gasoline is transported in the Carburetor in the fuel tank, in case petrol pump breaks down or job insecurity, will cause failure of oil feed, make the motor can't proper functioning.This structure through the petrol pump fuel feeding reduces the reliability of oil supply system, and owing to adopt petrol pump, the complete machine cost of general gasoline engines also increases relatively.
Summary of the invention
The objective of the invention is deficiency to the existing technology existence; A kind of fuel supply structure of general gasoline engines is provided, makes the fuel supply structure compact in design, increased the aesthetic property of general gasoline engines complete machine; Improve the stability of fuel feeding; Suction tude instead of gasoline pump work reduces the complete machine cost, improves cost performance.
The objective of the invention is to realize like this: comprise fuel tank, Carburetor, air-strainer; Said fuel tank one side is installed in the next door of cylinder head through tank support; The fuel tank bottom is supported by two stay bolts that are connected with crankcase body, and the fuel tank bottom sets out hydraulic fluid port, and Carburetor, air-strainer are positioned at the fuel tank below; The filler opening of Carburetor is lower than the oil outlet of fuel tank bottom; The combination gas of Carburetor exports an end and is communicated with the inlet hole of cylinder head through a rigidity suction tude, and suction tude supports Carburetor, and air-strainer is connected with Carburetor through bolt; The suction port of Carburetor is communicated with air-strainer, and the filler opening of Carburetor is communicated with through oil pipe with the oil outlet that is provided with at the bottom of the fuel tank.
Said suction tude is a S shape, and an end of suction tude is connected through flange with Carburetor, and the other end of suction tude is connected through flange with cylinder head.
Said stay bolt is a stud bolt.
Said suction tude is the nylon material of hard.
Said tank support comprises first support and second support; First support is fixedly connected on the cylinder head; The fuel tank side is fixed on first support through the fuel tank journal stirrup, and second support is arranged on the fuel tank bottom, and the second support fixed support is passed through stay bolt in the fuel tank bottom.
Owing to adopt technique scheme; Fuel tank one side is installed in the next door of cylinder head through tank support; The fuel tank bottom is supported by two stay bolts that are connected with crankcase body; Carburetor, air-strainer are positioned at the fuel tank below, and the filler opening of Carburetor is lower than the oil outlet of fuel tank bottom, and the filler opening of Carburetor is communicated with through oil pipe with the oil outlet that is provided with at the bottom of the fuel tank.Be arranged on the fuel tank below to Carburetor, make the oil level of fuel tank be higher than Carburetor formation drop, fuel oil just can flow in the Carburetor from fuel tank through action of gravity, makes fuel feeding easier.Rely on gravity feed oil displace oil oil pump feed mode, the unreliability of the fuel feeding of avoiding causing because of the oil pump job insecurity makes oil supply system more stable, guarantees the continuous operation of starting.
The combination gas of Carburetor exports an end and is communicated with the inlet hole of cylinder head through a rigidity suction tude in the said fuel supply structure; Suction tude supports Carburetor; Air-strainer is connected with Carburetor through bolt; The suction port of Carburetor is communicated with air-strainer, and the filler opening of Carburetor is communicated with the oil outlet that is provided with at the bottom of the fuel tank.Suction tude is the hard nylon material.Utilize the rigidity suction tude, both solved the problem of Carburetor, solved the support fixation problem of Carburetor again, simplified the general gasoline engines structure Design to cylinder head supply combination gas; On the complete machine cost of production of general gasoline engines, the cost of suction tude removes oil pump and associated components well below the price of oil pump simultaneously, increases by a suction tude complete machine cost can be reduced, and improves cost performance.Suction tude is used for supporting and the ventilation effect simultaneously, reduces the installation of Carburetor, and Carburetor does not need other fixed blocks to install and fix, and makes whole oil supply structure simple, and the complete machine compact in design has increased the aesthetic property of complete machine.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a partial sectional view of the present invention;
Fig. 3 schematic representation that to be fuel tank be communicated with through oil pipe with Carburetor.
In the accompanying drawing, 1 is fuel tank, and 1a is the fuel tank journal stirrup, and 2 is Carburetor, and 3 is air-strainer, and 4 is first support, and 5 is second support, and 6 is stay bolt, and 7 is suction tude, and 8 is cylinder head, and 9 is oil pipe, and 10 is the oil pipe pipe clamp.
Embodiment
With reference to Fig. 1, Fig. 2; The oil supply structure of general gasoline engines comprises fuel tank 1, Carburetor 2, air-strainer 3; Fuel tank, Carburetor, air-strainer all are located at the motor side; The fresh air that fuel oil that fuel tank 1 provides and air-strainer 3 provide mixes in Carburetor 2, forms the combustion gas that mixes, and sends into the acting of engine cylinder internal combustion again and forms power.Said fuel tank 1 side is connected with fuel tank journal stirrup 1a, and fuel tank journal stirrup 1a is provided with mounting hole.Fuel tank one side is installed in the next door of cylinder head 8 through tank support; Said tank support comprises that first support 4 and second support, 5, the first supports 4 are connected on the cylinder head through bolt, and the fuel tank side passes the mounting hole of fuel tank journal stirrup 1a through bolt and the mounting hole on first support is fastenedly connected; Be fixed on fuel tank on first support like this; First support is provided with mutual opening, and opening is used for stepping down to suction tude, is convenient to the installation of the suction tude and first support.Second support 5 is arranged on the fuel tank bottom, and second support upper end is connected with fuel tank bottom one, and the second support fixed support is passed through stay bolt 6 in the fuel tank bottom; Said stay bolt 6 is a stud bolt, and stay bolt is arranged on the fuel tank bottom, and the screw that one of stay bolt inserts the double-screw bolt on the crankcase body connects; The mounting hole of second support is passed in the other end; It is fastening to overlap upper cap nut then, and stay bolt is provided with two, is used for the support fixation fuel tank.Said Carburetor 2, air-strainer 3 are positioned at the fuel tank below; The combination gas of Carburetor 2 exports an end and is communicated with the inlet hole of cylinder head through a rigidity suction tude 7; Said suction tude 7 is a S shape; One end of suction tude is connected through flange with Carburetor, and the other end of suction tude is connected through flange with cylinder head, is communicated with Carburetor with cylinder through suction tude like this.Suction tude adopts S shape, is positioned at the fuel tank bottom after making suction tude walk around fuel tank, is convenient to Carburetor and is installed on the fuel tank bottom; Said suction tude is the rigidity suction tude; Suction tude supports Carburetor, and the present invention adopts the nylon material of hard, guarantees that suction tude can support Carburetor.Air-strainer 3 is positioned at the Carburetor outside; Air-strainer 3 is connected with Carburetor 2 through bolt; The suction port of Carburetor 2 is communicated with air-strainer 3, and making air-strainer is that Carburetor provides fresh air, and the filler opening of Carburetor 2 is communicated with the oil outlet that 1 end of fuel tank is provided with; Making fuel tank is that Carburetor provides fuel oil; The filler opening of Carburetor 2 of the present invention adopts oil pipe 9 to be communicated with the oil outlet that 1 end of fuel tank is provided with, and joint, oil pipe two ends is locked with oil pipe pipe clamp 10, guarantees that joint, oil pipe two ends is oil-proof.
Working procedure of the present invention: behind the engine start; Air-strainer gets into air, and the filtration through air-strainer obtains fresh, pure air, sends into Carburetor then; Fuel oil in the fuel tank flows under the influence of gravity into Carburetor simultaneously; The fresh air that Carburetor is sent into fuel injection and air-strainer mixes, and forms certain density combination gas, and combination gas gets into the acting of engine combustion Indoor Combustion through suction tude again and forms power.
The present invention relies on gravity feed oil, has practiced thrift petrol pump, adopts suction tude to support Carburetor, makes the fuel supply structure compact in design, has increased the aesthetic property of complete machine, has increased the stability of complete machine, and the complete machine cost is reduced, and practices thrift cost.
Claims (4)
1. the fuel supply structure of a general gasoline engines comprises fuel tank, Carburetor, air-strainer, it is characterized in that: said fuel tank one side is installed in the next door of cylinder head through tank support; The fuel tank bottom is supported by two stay bolts that are connected with crankcase body; Said tank support comprises first support and second support, and first support is fixedly connected on the cylinder head, and the fuel tank side is fixed on first support through the fuel tank journal stirrup; Second support is arranged on the fuel tank bottom; The second support fixed support is passed through said stay bolt in the fuel tank bottom, and the fuel tank bottom sets out hydraulic fluid port, and Carburetor, air-strainer are positioned at the fuel tank below; The filler opening of Carburetor is lower than the oil outlet of fuel tank bottom; The combination gas of Carburetor exports an end and is communicated with the inlet hole of cylinder head through a rigidity suction tude, and said suction tude supports Carburetor, and air-strainer is connected with Carburetor through bolt; The suction port of Carburetor is communicated with air-strainer, and the filler opening of Carburetor is communicated with through oil pipe with the oil outlet that the fuel tank bottom is provided with.
2. the fuel supply structure of general gasoline engines according to claim 1, it is characterized in that: said suction tude is a S shape, and an end of said suction tude is connected through flange with Carburetor, and the other end of said suction tude is connected through flange with cylinder head.
3. the fuel supply structure of general gasoline engines according to claim 1, it is characterized in that: said stay bolt is a stud bolt.
4. the fuel supply structure of general gasoline engines according to claim 1, it is characterized in that: said suction tude is the nylon material of hard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103048270A CN101603482B (en) | 2009-07-24 | 2009-07-24 | Fuel supply structure for general gasoline engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103048270A CN101603482B (en) | 2009-07-24 | 2009-07-24 | Fuel supply structure for general gasoline engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101603482A CN101603482A (en) | 2009-12-16 |
| CN101603482B true CN101603482B (en) | 2012-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103048270A Expired - Fee Related CN101603482B (en) | 2009-07-24 | 2009-07-24 | Fuel supply structure for general gasoline engines |
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| Country | Link |
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| CN (1) | CN101603482B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593712A (en) * | 2017-01-18 | 2017-04-26 | 隆鑫通用动力股份有限公司 | Fuel tank, fuel tank mounting structure and universal gasoline engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5040503A (en) * | 1990-07-25 | 1991-08-20 | Briggs & Stratton Corporation | Air and fuel delivery apparatus |
| CN1392338A (en) * | 2001-06-14 | 2003-01-22 | 张干 | Oil supply system of new type gasoline engine |
| CN2921341Y (en) * | 2006-06-08 | 2007-07-11 | 刘伟 | Gasoline engine fuel supply system |
| JP2008150964A (en) * | 2006-12-14 | 2008-07-03 | Yamaha Motor Powered Products Co Ltd | All-purpose engine |
| CN101446245A (en) * | 2008-09-16 | 2009-06-03 | 江苏江淮动力股份有限公司 | Fuel evaporation-proof eductor of general petrol motor |
| CN201496182U (en) * | 2009-07-24 | 2010-06-02 | 隆鑫工业有限公司 | Fuel supply device of general gasoline engines |
-
2009
- 2009-07-24 CN CN2009103048270A patent/CN101603482B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5040503A (en) * | 1990-07-25 | 1991-08-20 | Briggs & Stratton Corporation | Air and fuel delivery apparatus |
| CN1392338A (en) * | 2001-06-14 | 2003-01-22 | 张干 | Oil supply system of new type gasoline engine |
| CN2921341Y (en) * | 2006-06-08 | 2007-07-11 | 刘伟 | Gasoline engine fuel supply system |
| JP2008150964A (en) * | 2006-12-14 | 2008-07-03 | Yamaha Motor Powered Products Co Ltd | All-purpose engine |
| CN101446245A (en) * | 2008-09-16 | 2009-06-03 | 江苏江淮动力股份有限公司 | Fuel evaporation-proof eductor of general petrol motor |
| CN201496182U (en) * | 2009-07-24 | 2010-06-02 | 隆鑫工业有限公司 | Fuel supply device of general gasoline engines |
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| Publication number | Publication date |
|---|---|
| CN101603482A (en) | 2009-12-16 |
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Granted publication date: 20120111 Termination date: 20210724 |
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