CN108180094A - Built-in tiltable general gasoline engines fuel oil supply system - Google Patents
Built-in tiltable general gasoline engines fuel oil supply system Download PDFInfo
- Publication number
- CN108180094A CN108180094A CN201810040508.2A CN201810040508A CN108180094A CN 108180094 A CN108180094 A CN 108180094A CN 201810040508 A CN201810040508 A CN 201810040508A CN 108180094 A CN108180094 A CN 108180094A
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- China
- Prior art keywords
- fuel oil
- supply system
- built
- oil supply
- float chamber
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The present invention discloses a kind of built-in tiltable general gasoline engines fuel oil supply system, including main body and the float chamber being connected in main body, float, main jet pipe and primary air passage, fuel storage is in float chamber, the oil plane height of fuel oil is less than main jet pipe and primary air passage, main body further includes built-in shoe cream room, shoe cream room is connected with float chamber, and the installation position of shoe cream room is higher than the installation position of float chamber.Increase a shoe cream room above the fuel oil supply system of the present invention, shoe cream room is communicated with float chamber, and higher than float chamber.Fuel oil enters shoe cream room in float chamber during inclination, and fuel oil height in float chamber is kept less than main jet pipe and primary air passage, to avoid leaking from main jet pipe and primary air passage due to tilting fuel oil.The fuel storage space that the present invention designs on former fuel oil supply system ontology belongs to built-in, and appearance and size changes small, practical function, has many advantages, such as that safe to use, at low cost, stable structure is reliable.
Description
Technical field
The present invention relates to a kind of gasoline engine fuel feed system, specifically, being to be related to one kind to tilt without leaking
The general gasoline engines fuel oil supply system of oil.
Background technology
General gasoline engines are mainly used in generating set, graden machine and agriculture and forestry machinery etc., as illustrated in figs. 1A and ib for
The structure diagram of common general gasoline engines fuel oil supply system.General gasoline engines fuel oil supply system 10 include fuel feed hole 11,
Float chamber 12, float 13, primary air passage 14, main jet pipe 15 and main jet 17.Fuel oil 16 enters from oil inlet pipe through needle seating
Float chamber 12 controls needle-valve open and close by the buoyancy of float 13 in float chamber 12, makes the liquid level stabilizing of fuel oil 16 one
Fixed height.When engine works, negative pressure is generated in cylinder by reciprocating motion of the pistons and is mixed from fuel oil supply system sucking oil gas
Gas is closed, as shown in Figure 1a, fuel oil 16 is inhaled into through fuel feed hole 11, main jet 17 and main jet pipe 15 in aditus laryngis out of float chamber 12,
Combustion chamber is mixed into air.The primary air passage 14 communicated with main jet pipe 15 is communicated with ambient atmosphere, is carried for main jet pipe 15
For air, atomized fuel.
General general gasoline engines fuel oil supply system is in vertical state, still, once run-off the straight, 12 internal combustion of float chamber
The liquid level of oil 16 rises, and when the liquid level of fuel oil 16 is excessively high, will be leaked from main jet pipe 15 and primary air passage 14.Such as Fig. 1 b institutes
Show, since fuel oil 16 is more in float chamber 12, and main jet pipe 15 and primary air passage 14 with cylinder or extraneous phase
Logical, during engine inclined to the right, fuel oil 16 flows to right side from left side in float chamber 12, and 15 liquid level of fuel oil rises in float chamber 12
Height, when tilting to a certain extent, when oil plane is higher by 14 aperture of main jet pipe 15 and primary air passage, fuel oil will leak.Once
Inclination leaks, and not only wastes fuel oil, and when excessive fuel oil enter engine chamber can cause engine flood cylinder and
It can not start.If fuel oil leaks into the external world, environment is not only polluted, also there is very big security risk.
Invention content
The present invention is based on the shortcomings that above-mentioned general gasoline engines fuel oil supply system, it is higher than on former fuel oil supply system ontology
A built-in storage space is designed in the position of float chamber fuel level, and the indoor fuel oil of float can flow into this space during inclination,
Reduce the indoor fuel level of float, maintain in float chamber fuel level less than main jet pipe and main air passage port, avoid by
Lead to fuel leakage in inclination.The fuel storage space that the present invention designs on former fuel oil supply system ontology belongs to built-in,
Appearance and size changes small, practical function, has many advantages, such as that safe to use, at low cost, stable structure is reliable.
To achieve these goals, built-in tiltable general gasoline engines fuel oil supply system of the invention, including main body
And float chamber, float, main jet pipe and primary air passage in the main body are connected to, fuel storage is in the float
Interior, the oil plane height of the fuel oil are less than the main jet pipe and primary air passage, wherein, the main body further includes built-in
The shoe cream room of formula, the shoe cream room are connected with the float chamber, and the installation position of the shoe cream room is higher than the float chamber
Installation position.
In one embodiment of above-mentioned built-in tiltable general gasoline engines fuel oil supply system, the fuel supply system
System includes inclined side, and the shoe cream room is set to the inclined side.
In one embodiment of above-mentioned built-in tiltable general gasoline engines fuel oil supply system, the shoe cream room includes
Ontology and pressing plate, the space between the ontology and the pressing plate form a cavity, and the cavity is connected with the float chamber.
In one embodiment of above-mentioned built-in tiltable general gasoline engines fuel oil supply system, the ontology and described
It is sealed between pressing plate by sealing ring.
In one embodiment of above-mentioned built-in tiltable general gasoline engines fuel oil supply system, the main jet pipe includes
Main jet tube passage, the main jet tube passage include fuel feed hole, and the fuel feed hole connects the main jet tube passage and the shoe cream room.
In one embodiment of above-mentioned built-in tiltable general gasoline engines fuel oil supply system, the fuel feed hole setting
In the main jet tube passage close to the side of the inclined side.
In one embodiment of above-mentioned built-in tiltable general gasoline engines fuel oil supply system, the main jet tube passage
Be not provided with fuel feed hole far from the side of the inclined side.
In one embodiment of above-mentioned built-in tiltable general gasoline engines fuel oil supply system, the primary air passage
It is set to the side opposite with the inclined side.
The beneficial functional of the present invention is that built-in tiltable general gasoline engines fuel oil supply system of the invention is in main body
Increase a shoe cream room above, shoe cream room is communicated with float chamber, and higher than float chamber.Fuel oil enters oil storage in float chamber during inclination
Chamber keeps fuel oil height in float chamber less than main jet pipe and primary air passage, to avoid due to tilting fuel oil from main jet pipe and main sky
Gas path leakage.The present invention has many advantages, such as safe to use, simple in structure, reliable and stable.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Description of the drawings
Fig. 1 a and Fig. 1 b are the structure diagram of the general gasoline engines fuel oil supply system of the prior art；
Fig. 2 is the dimensional structure diagram of the tiltable general gasoline engines fuel oil supply system of the present invention；
Fig. 3 is the broken section dimensional structure diagram of the tiltable general gasoline engines fuel oil supply system of the present invention；
Fig. 4 is the schematic cross-sectional view (not tilting) of the tiltable general gasoline engines fuel oil supply system of the present invention；
Fig. 5 is the schematic cross-sectional view (tilting an angle) of the tiltable general gasoline engines fuel oil supply system of the present invention；
Fig. 6 is the schematic cross-sectional view (tilting 90 degree) of the tiltable general gasoline engines fuel oil supply system of the present invention；
Fig. 7 is the stereochemical structure signal of another embodiment of the tiltable general gasoline engines fuel oil supply system of the present invention
Figure.
Wherein, reference numeral
In the prior art：
10 general gasoline engines fuel oil supply systems
11 fuel feed holes
12 float chambers
13 floats
14 primary air passages
15 main jet pipes
16 fuel oils
17 main jets
In the present invention：
20 tiltable general gasoline engines fuel oil supply systems
21 float chambers
22 floats
23 main jet pipes
23a main jet tube passages
23b fuel feed holes
24 primary air passages
25 fuel oils
26 shoe cream rooms
261 ontologies
262 pressing plates
263 communicating passages
264 sealing rings
S inclined sides
C cavitys
Specific embodiment
Technical solution of the present invention is described in detail in the following with reference to the drawings and specific embodiments, to be further understood that
The purpose of the present invention, scheme and effect, but it is not intended as the limitation of scope of the appended claims of the present invention.
As shown in Figures 2 to 4, built-in tiltable general gasoline engines fuel oil supply system 20 of the invention include main body with
And float chamber 21, float 22, main jet pipe 23 and primary air passage 24 in main body are connected to, fuel oil 25 is stored in float
In room 21, the oil plane height of fuel oil 25 is less than main jet pipe 23 and primary air passage 24 (referring to Fig. 7).Its structure with it is worked
The no longer excessive narration herein of journey part same as the prior art.
Wherein, built-in tiltable general gasoline engines fuel oil supply system 20 of the invention further includes built-in shoe cream room
26, shoe cream room 26 is connected with float chamber 21, and the installation position of shoe cream room 26 is higher than the installation position of float chamber 21.The present invention
It is higher than one built-in storage space of Position Design of float chamber fuel level in the main body of former fuel oil supply system.I.e. this is interior
Formula storage space is put to be integrally formed with main body.This space is communicated with float chamber, and fuel oil can flow into this storage in float chamber during inclination
Space achievees the purpose that fuel level in reduction float chamber, and fuel level in float chamber is maintained to be not above main jet pipe, primary air
Channel aperture, fuel oil would not leak during inclination.Both fuel oil has been saved, pollution environment has been avoided, also eliminates security risk.And
Overall dimensions variation is little, conducive to installation.
Specifically, as shown in figure 4, under normal circumstances, fuel oil 25 is tieed up in float chamber 21 by the effect of 22 buoyancy of float
It holds in certain working depth, fuel oil 25 does not enter shoe cream room 26.
As shown in figure 5, when general gasoline engines fuel oil supply system run-off the straight, fuel oil 25 can enter from float chamber 21 to be stored up
Oil pocket 26 keeps the fuel head of fuel oil 25 in float chamber 21 less than main jet pipe 23 and primary air passage 24, so avoid due to
Fuel oil 25 is tilted to leak from main jet pipe 23 and primary air passage 24.
Specifically, as shown in Figure 4 and Figure 5, built-in tiltable general gasoline engines fuel oil supply system 20 of the invention wraps
Include inclined side S, built-in tiltable general gasoline engines fuel oil supply system 20 is tilted to inclined side S, i.e. inclination side as illustrated
To when tilting, the position height of inclined side S will reduce.Shoe cream room 26 is set to inclined side S, during run-off the straight, shoe cream room 26
It highly reduces, fuel oil 25 is circulated to shoe cream room 26, and then ensures that fuel head is no more than main jet pipe 23 and primary air passage 24.
As shown in Figures 2 and 3, shoe cream room 26 includes ontology 261 and pressing plate 262, the sky between ontology 261 and pressing plate 262
Between formed shoe cream room 26 store fuel oil 25 cavity C.Shoe cream room 26 further includes communicating passage 263, and communicating passage 263 connects cavity
C and float chamber 21, during run-off the straight, fuel oil 25 passes through communicating passage 263 in float chamber 21 and enters cavity C.
Shoe cream room 26 further includes sealing ring 264, is sealed between ontology 261 and pressing plate 262 by sealing ring 264.
As shown in Figure 1, fuel feed hole 11 there are two conventional fuel oil supply systems 10, if during run-off the straight, two fuel feed holes must
Right one above, one is below, and fuel oil flows back down in upper end fuel feed hole and main jet tube passage in tilting procedure, flows back
Resistance is larger.
As shown in Figure 5 and Figure 6, the main jet pipe 23 of built-in tiltable general gasoline engines fuel oil supply system 20 of the invention
Main jet tube passage 23a on be provided with fuel feed hole 23b, fuel feed hole 23b connection main jet tube passage 23a and shoe cream room 26.Further
For, fuel feed hole 23b is set to the side of the close inclined side S of main jet tube passage 23a.The separate inclination of main jet tube passage 23a
The side of side S is not provided with fuel feed hole.I.e. the present invention cancels fuel feed hole when tilting upward, makes fuel oil 26 in main jet tube passage 23a
Reflux is more smooth, rapid.
As shown in fig. 6, the built-in fuel oil 25 that slopes to of the present invention, less than fuel feed hole 23b, angle of inclination can be more than 90 °.
Even if there is fuel oil 25 in float chamber 21, in carrying or placement run-off the straight be also unlikely to oil leak.The present invention is not only simple in structure,
It is and safe to use.
In the preferred embodiment of the present invention, in order to avoid portion of residual fuel oil during inclination in the channel of main jet pipe 23
Due to inertia flow primary air channel 24, a small amount of fuel oil is caused to be leaked from primary air passage 24, as shown in fig. 7, the present invention will be main
Air duct 24 moves to left side, i.e., primary air passage 24 is moved to the side opposite with inclined side S, also i.e. by primary air passage 24
It is placed in the side opposite with shoe cream room 26.When being tilted by diagram direction, fuel oil flow direction is positioned at the shoe cream room 26 of inclined side S, main sky
24 side fuel level of gas channel declines, and the primary air passage 24 positioned at the opposite side of inclined side S is consistently higher than fuel level, and
Above the channel of main jet pipe 23, fuel oil will not leak always from primary air passage 24, further avoid incident of leakage
Occur.
The direction of inclined side S is only for example in the present invention, according to different engine structures and application terminal, works as inclined direction
When opposite, fuel storage space can be designed in opposite side, equally avoid leaking.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and deformation, but these corresponding changes and change in accordance with the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (8)
1. a kind of built-in tiltable general gasoline engines fuel oil supply system, including main body and is connected in the main body
Float chamber, float, main jet pipe and primary air passage, for fuel storage in the float chamber, the oil plane of the fuel oil is high
Degree is less than the main jet pipe and primary air passage, which is characterized in that the main body further includes built-in shoe cream room, the storage
Oil pocket is connected with the float chamber, and the installation position of the shoe cream room is higher than the installation position of the float chamber.
2. built-in tiltable general gasoline engines fuel oil supply system according to claim 1, which is characterized in that the combustion
Oily feed system includes inclined side, and the shoe cream room is set to the inclined side.
3. built-in tiltable general gasoline engines fuel oil supply system according to claim 1, which is characterized in that the storage
Oil pocket includes ontology and pressing plate, and the space between the ontology and the pressing plate forms a cavity, the cavity and the float
Room is connected.
4. built-in tiltable general gasoline engines fuel oil supply system according to claim 3, which is characterized in that described
It is sealed between body and the pressing plate by sealing ring.
5. built-in tiltable general gasoline engines fuel oil supply system according to claim 2, which is characterized in that the master
Jet pipe includes main jet tube passage, and the main jet tube passage includes fuel feed hole, and the fuel feed hole connects the main jet tube passage and institute
State shoe cream room.
6. built-in tiltable general gasoline engines fuel oil supply system according to claim 5, which is characterized in that it is described into
Oilhole is set to the side of the close inclined side of the main jet tube passage.
7. built-in tiltable general gasoline engines fuel oil supply system according to claim 5, which is characterized in that the master
The side far from the inclined side of nozzle passage is not provided with fuel feed hole.
8. built-in tiltable general gasoline engines fuel oil supply system according to claim 2, which is characterized in that the master
Air duct is set to the side opposite with the inclined side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/102729 WO2019042278A1 (en) | 2017-08-28 | 2018-08-28 | Built-in tiltable general fuel oil supply system for gasoline engine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710751464 | 2017-08-28 | ||
| CN201710751464X | 2017-08-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108180094A true CN108180094A (en) | 2018-06-19 |
| CN108180094B CN108180094B (en) | 2020-07-03 |
Family
ID=62550618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810040508.2A Active CN108180094B (en) | 2017-08-28 | 2018-01-16 | Built-in tiltable general gasoline engine fuel supply system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108180094B (en) |
| WO (1) | WO2019042278A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019042278A1 (en) * | 2017-08-28 | 2019-03-07 | 华益机电有限公司 | Built-in tiltable general fuel oil supply system for gasoline engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116163869B (en) * | 2023-03-15 | 2024-05-14 | 一汽解放汽车有限公司 | Exhaust structure, fuel filter and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202165178U (en) * | 2011-07-08 | 2012-03-14 | 陈俭敏 | Universal gasoline engine carburetor and oil system structure thereof |
| CN104454243A (en) * | 2014-12-04 | 2015-03-25 | 苏州圆能动力科技有限公司 | Anti-toppling carburetor structure based on external fuel oil container |
| CN204299723U (en) * | 2014-12-04 | 2015-04-29 | 苏州圆能动力科技有限公司 | A kind of Carburetor overturning-preventing structure based on external fuel oil container |
| CN207905969U (en) * | 2017-08-28 | 2018-09-25 | 华益机电有限公司 | Built-in tiltable general gasoline engines fuel oil supply system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3711216B2 (en) * | 1999-09-28 | 2005-11-02 | 株式会社クボタ | Engine carburetor |
| JP2009047037A (en) * | 2007-08-17 | 2009-03-05 | Nikki Co Ltd | Carburetor for outboard motor |
| CN108180094B (en) * | 2017-08-28 | 2020-07-03 | 华益机电有限公司 | Built-in tiltable general gasoline engine fuel supply system |
-
2018
- 2018-01-16 CN CN201810040508.2A patent/CN108180094B/en active Active
- 2018-08-28 WO PCT/CN2018/102729 patent/WO2019042278A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202165178U (en) * | 2011-07-08 | 2012-03-14 | 陈俭敏 | Universal gasoline engine carburetor and oil system structure thereof |
| CN104454243A (en) * | 2014-12-04 | 2015-03-25 | 苏州圆能动力科技有限公司 | Anti-toppling carburetor structure based on external fuel oil container |
| CN204299723U (en) * | 2014-12-04 | 2015-04-29 | 苏州圆能动力科技有限公司 | A kind of Carburetor overturning-preventing structure based on external fuel oil container |
| CN207905969U (en) * | 2017-08-28 | 2018-09-25 | 华益机电有限公司 | Built-in tiltable general gasoline engines fuel oil supply system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019042278A1 (en) * | 2017-08-28 | 2019-03-07 | 华益机电有限公司 | Built-in tiltable general fuel oil supply system for gasoline engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019042278A1 (en) | 2019-03-07 |
| CN108180094B (en) | 2020-07-03 |
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