CN112855396A - Oil circuit system of gasoline engine - Google Patents
Oil circuit system of gasoline engine Download PDFInfo
- Publication number
- CN112855396A CN112855396A CN202110330105.3A CN202110330105A CN112855396A CN 112855396 A CN112855396 A CN 112855396A CN 202110330105 A CN202110330105 A CN 202110330105A CN 112855396 A CN112855396 A CN 112855396A
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- China
- Prior art keywords
- oil
- tank
- gasoline engine
- communicated
- type carburetor
- 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.)
- Pending
Links
- 239000003502 gasoline Substances 0.000 title claims abstract description 62
- 238000005086 pumping Methods 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 239000000446 fuel Substances 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
-
- 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
-
- 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
- F02M37/04—Feeding by means of driven pumps
- F02M37/16—Feeding by means of driven pumps characterised by provision of personally-, e.g. manually-, operated pumps
-
- 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
- F02M5/00—Float-controlled apparatus for maintaining a constant fuel level
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention relates to the technical field of combustion engines, in particular to an oil circuit system of a gasoline engine, which comprises an oil tank and a float-type carburetor, wherein an oil supply pipe is communicated between the oil tank and the float-type carburetor, an oil pumping mechanism for pumping oil from the float-type carburetor to the oil tank in a one-way mode is communicated between the float-type carburetor and the oil tank, an oil suction end of the oil pumping mechanism is communicated with the float-type carburetor, and an oil discharge end of the oil pumping mechanism is communicated with the oil tank. The scheme solves the problem that the gasoline in the float type carburetor of the gasoline engine in the prior art is inconvenient to discharge.
Description
Technical Field
The invention relates to the technical field of a conveying system from an oil tank to a carburetor of a common combustion engine, in particular to an oil way system of a gasoline engine.
Background
The oil way system of the gasoline engine comprises an oil tank, an oil supply pipe and a float type carburetor, wherein when the gasoline engine works, the oil tank supplies oil to the float type carburetor through the oil supply pipe. After the gasoline engine is shut down, part of gasoline is stored in the float type carburetor, and if the gasoline is stored in the float type carburetor for a long time, parts of the float type carburetor are corroded and damaged to influence the performance of the float type carburetor; meanwhile, the gasoline can be gelated, deposited and condensed under the condition of long-time storage, and parts are blocked, so that the float type carburetor fails; and the gasoline in the float type carburetor is easy to volatilize to the ambient air through the air balance hole on the float type carburetor when being stored, so that the air pollution is caused and the potential safety hazard exists. The existing treatment mode is that an oil drainage hole is arranged at the bottom of an oil cup of a float type carburetor, an oil drainage bolt is connected to the oil drainage hole, and after an oil tank stops supplying oil to the float type carburetor through an oil supply pipe, a tool is used for loosening the oil drainage bolt, so that gasoline in the float type carburetor is discharged from the oil drainage hole; in order to prevent gasoline from being directly discharged into the environment to pollute the environment, a container is used for collecting the gasoline discharged from the float type carburetor and then pouring the collected gasoline into a fuel tank. Therefore, the float-type carburetor adopting such an oil discharge method depends on various tools, thereby causing a problem of inconvenient operation.
Disclosure of Invention
The invention aims to provide an oil circuit system of a gasoline engine, which aims to solve the problem of inconvenient operation of gasoline discharge in a float type carburetor in the prior art.
In order to achieve the above object, a basic aspect of the present invention provides an oil passage system of a gasoline engine, including an oil tank and a float type carburetor, wherein an oil supply pipe is communicated between the oil tank and the float type carburetor, an oil pumping mechanism for unidirectionally pumping oil from the float type carburetor to the oil tank is communicated between the float type carburetor and the oil tank, an oil suction end of the oil pumping mechanism is communicated with the float type carburetor, and an oil discharge end of the oil pumping mechanism is communicated with the oil tank.
The principle and the beneficial effect of the basic scheme are as follows: after the gasoline engine is stopped, the oil tank stops supplying oil to the float type carburetor, and then the oil pumping mechanism is operated to suck the gasoline in the float type carburetor and pump the gasoline into the oil tank, so that the gasoline in the float type carburetor is emptied. By adopting the arrangement, when the gasoline in the float type carburetor is emptied, no tool is needed, and the operation is convenient; and the gasoline in the float-type carburetor is discharged into the oil tank, so that the waste of the gasoline and the pollution to the environment caused by directly discharging the gasoline into the environment are avoided.
Further, the fuel supply pipe is connected with a fuel switch. By adopting the arrangement, the fuel switch is convenient to realize the switching of the fuel supply pipe between connection and disconnection, and the operation is convenient.
Further, the oil suction end of the oil pumping mechanism is positioned at the bottom of an oil cup of the float type carburetor. By adopting the arrangement, the gasoline in the float type carburetor can be emptied as much as possible.
Further, the oil pumping mechanism comprises an oil pumping device which is a manual pressing type oil pumping device. Adopt such setting, the convenience is directly operated the oil pumping ware through the operator, is favorable to the operator to know in real time the oil extraction condition of float-type carburetor, compares in using automatic oil pumping structure to compare, has avoided not fully discharging the condition emergence of often not knowing because of the power of automatic oil pumping structure is not enough or became invalid with the petrol in the carburetor, and such setting also is favorable to making the simple structure of oil pumping mechanism, and the reliability improves to be favorable to control cost.
Further, the oil pumping device is arranged on the float type carburetor and is directly communicated with the float type carburetor. By adopting the arrangement, the arrangement of parts such as a pipeline between the oil pumping device and the float type carburetor is favorably reduced, so that the structure is further simplified.
Further, the oil pumping device is arranged on the oil tank and is directly communicated with the oil tank. The oil tank is generally located gasoline engine's top, adopts such setting, conveniently operates pumping oil ware, improves the convenience of operation.
Further, the oil discharge end of the oil pumping mechanism is positioned at the top of the oil tank. By adopting the arrangement, the oil discharge end of the oil pumping mechanism is positioned above the gasoline liquid level in the oil tank, so that the phenomenon that the gasoline in the oil tank enters the float type carburetor through the oil pumping mechanism when the oil pumping mechanism fails is avoided, and the safety of an oil way system is improved.
Further, the oil pumping mechanism further comprises an oil discharge pipe communicated with the oil pumping device, and one end, far away from the oil pumping device, of the oil discharge pipe is communicated with the oil tank. By adopting the arrangement, the position of the oil pumping device can be more flexibly arranged, and the limiting effect of the oil tank on the position selection of the oil pumping device is reduced.
Further, one end of the oil discharge pipe, which is far away from the oil pumping device, extends into the oil tank from the lower part of the oil tank and extends to the top of the oil tank. By adopting the arrangement, the operations such as opening the top of the oil tank are avoided, and the top of the oil tank is kept complete.
Furthermore, one end of the oil discharge pipe, which is far away from the oil pumping device, is communicated with the oil tank through a part, which is positioned between the oil tank and the fuel switch, on the oil supply pipe. By adopting the arrangement, the oil discharge pipe can shorten the length of the arrangement by sharing part of the oil supply pipe, thereby saving materials and being beneficial to reducing the cost; meanwhile, holes can be reduced on the oil tank, so that adverse effects on the structure of the oil tank and the like are avoided.
Further, the oil discharge pipe is an oil discharge channel integrally formed with the float type carburetor. With this arrangement, by providing the oil discharge passage in the float type carburetor by integral molding, the gasoline of the oil pumping device is introduced into the oil supply pipe through the oil discharge passage and is returned to the oil tank through the oil supply pipe, so that the number of separate pipe fittings can be reduced.
Drawings
Fig. 1 is a schematic view of an oil pump in an embodiment 1 of an oil circuit system of a gasoline engine according to the present invention;
FIG. 2 is a schematic diagram of an oil pump in embodiment 1 of an oil circuit system of a gasoline engine according to the present invention;
FIG. 3 is a schematic diagram of an embodiment 2 of the oil circuit system of the gasoline engine of the present invention;
FIG. 4 is a schematic diagram of an embodiment 3 of the oil circuit system of the gasoline engine of the present invention;
FIG. 5 is a schematic diagram of an embodiment 4 of the oil circuit system of the gasoline engine of the present invention;
FIG. 6 is a schematic view of an embodiment 5 of an oil circuit system of a gasoline engine according to the present invention;
FIG. 7 is a schematic view of an embodiment 6 of an oil circuit system of a gasoline engine according to the present invention;
fig. 8 is a schematic diagram of an embodiment 7 of the oil circuit system of the gasoline engine.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a liquid level A, an oil tank 1, an oil pumping mechanism 2, an oil discharge pipe 21, an oil pumping device 22, an oil suction pipe 23, an oil supply pipe 3, a fuel switch 4, a float type carburetor 5 and an oil cup 51.
Example 1: substantially as shown in figures 1 and 2 of the accompanying drawings: an oil circuit system of a gasoline engine comprises an oil tank 1 and a float type carburetor 5, wherein the oil tank 1 is positioned above the float type carburetor 5, an oil supply pipe 3 is communicated between the oil tank 1 and the float type carburetor 5, specifically, one end of the oil supply pipe 3 is communicated with the bottom of the oil tank 1, the other end of the oil supply pipe 3 is connected with a fuel switch 4, and the fuel switch 4 is installed on the float type carburetor 5. An oil pumping mechanism 2 for unidirectionally pumping oil from the float carburetor 5 to the oil tank 1 is further arranged between the float carburetor 5 and the oil tank 1, specifically, the oil pumping mechanism 2 comprises an oil pumping device 22, an oil suction pipe 23 and an oil discharge pipe 21, the oil pumping device 22 is provided with an oil pumping cavity, the oil pumping device 22 is provided with an oil suction port and an oil discharge port which are communicated with the oil pumping cavity, the oil suction port and the oil discharge port are both provided with one-way valves, the oil suction pipe 23 is communicated with the oil suction port, the oil discharge pipe 21 is communicated with the oil discharge port, so that one end of the oil suction pipe 23, which is far away from the oil pumping device 22, is used as an oil suction end of the oil pumping mechanism 2, one end of the oil discharge pipe 21, which is far away from the oil pumping device 22. The end of the oil suction pipe 23 far away from the oil pumping device 22 is communicated with the bottom of the float type carburetor 5, namely, the oil suction pipe 23 is communicated with the bottom of the oil cup 51 of the float type carburetor 5. One end of the oil drain pipe 21 away from the oil pumping device 22 is communicated with the top of the oil tank 1, and specifically, one end of the oil drain pipe 21 away from the oil pumping device 22 extends into the inside of the oil tank 1 from the lower part of the oil tank 1 and extends to the top of the oil tank 1, so that the end of the oil drain pipe 21 is higher than the liquid level a in the oil tank 1. The oil pumping device 22 in this embodiment is preferably a manual pressing type oil pumping device 22, the oil pumping device 22 is provided with a bubble-shaped structure made of an elastic material, so that the bubble-shaped structure is pressed and deformed and then returns to the original shape under the action of self elastic force, and an inner cavity of the bubble-shaped structure is an oil pumping cavity.
The specific implementation process is as follows: after the gasoline engine stops operating, the fuel switch 4 is closed, and the fuel supply pipe 3 stops supplying fuel from the fuel tank 1 to the float carburetor 5. Pressing the oil pumping device 22 of the oil pumping mechanism 2 to discharge the gasoline in the oil pumping cavity into the oil tank 1 through the oil discharge pipe 21 (as shown in fig. 1, the arrow indicates the flowing direction of the gasoline); after the oil pumping device 22 is loosened, the oil pumping device 22 sucks gasoline in the float type carburetor 5 into an oil pumping cavity (as shown in fig. 2, an arrow indicates a gasoline flowing direction) through the oil suction pipe 23, and the oil pumping device 22 is loosened after repeated pressing, so that the gasoline in the float type carburetor 5 is gradually discharged into the oil tank 1, the float type carburetor 5 is emptied, and the influence on the performance of the float type carburetor 5 and the whole machine due to long-time storage of the gasoline in the float type carburetor 5 is avoided.
Example 2: as shown in fig. 3, the only difference from embodiment 1 is that: one end of the oil discharge pipe 21, which is far away from the oil pumping device 22, extends into the oil tank 1 from the top end of the oil tank 1 and is communicated with the top of the oil tank 1, so that the oil discharge pipe 21 does not need to extend into the oil tank 1, and the assembly of the oil discharge pipe 21 and the oil tank 1 is further facilitated.
Example 3: as shown in fig. 4, the only difference from embodiment 1 is that: the oil pumping device 22 of the oil pumping mechanism 2 is directly arranged on the float type carburetor 5, and the oil inlet of the oil pumping device 22 is directly communicated with the bottom of the float type carburetor 5, so that the arrangement of the oil suction pipe 23 is omitted, and the reduction of the number of parts of the oil pumping mechanism 2 is facilitated.
Example 4: as shown in fig. 5, the only difference from embodiment 1 is that: the only difference from example 1 is that: the pump oiler 22 direct mount of pump oily mechanism 2 is at the top of oil tank 1, and the oil drain port of pump oiler 22 directly communicates with oil tank 1 to the setting of oil extraction pipe 21 has been omitted, is favorable to reducing the spare part quantity of pump oily mechanism 2, simultaneously, utilizes oil tank 1 to support the pump oiler 22 of pump oily mechanism 2, convenient operation.
Example 5: as shown in fig. 6, the only difference from embodiment 3 is that: one end of the oil discharge pipe 21, which is far away from the oil pumping device 22, is connected with the top of the oil tank 1 and extends to the inside of the oil tank 1, so that the length of the oil discharge pipe 21 extending into the inside of the oil tank 1 can be reduced, the manufacturing is convenient, and the material is saved.
Example 6: as shown in fig. 7, the only difference from example 5 is that: one end of the oil discharge pipe 21, which is far away from the oil pumping device 22, is communicated with the oil supply pipe 3 through a three-way joint, and the position where the oil discharge pipe 21 is connected with the oil supply pipe 3 is located at a position on the oil supply pipe 3 between the oil tank 1 and the fuel switch 4, so that a part of the oil supply pipe 3 is communicated with the oil tank 1 as a shared part of the oil pumping mechanism 2, the installation length of the oil discharge pipe 21 can be shortened, and materials can be saved.
Example 7: as shown in fig. 8, the only difference from embodiment 1 is that: one end of the oil discharge pipe 21, which is far away from the oil pumping device 22, is communicated with the oil supply pipe 3 through a three-way joint, and the position where the oil discharge pipe 21 is connected with the oil supply pipe 3 is located at a position on the oil supply pipe 3 between the oil tank 1 and the fuel switch 4, so that a part of the oil supply pipe 3 is communicated with the oil tank 1 as a shared part of the oil pumping mechanism 2, the installation length of the oil discharge pipe 21 can be shortened, and materials can be saved.
Example 8: the only difference from example 6 is that: the oil discharge pipe 21 is an oil discharge passage integrally formed with the float type carburetor, and the gasoline discharged from the oil pump directly flows into the oil supply pipe through the oil discharge passage and is discharged into the oil tank through the oil supply pipe, so that an independent pipe fitting does not need to be used as the oil discharge pipe, and the operation processes in the aspects of assembly and the like are reduced.
The oil discharge pipe and the oil suction pipe related to the present invention may be a pipe structure formed by using separate pipe members, or may be a passage structure integrally formed by using the structure of a gasoline engine.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (11)
1. The oil circuit system of the gasoline engine comprises an oil tank and a float type carburetor, wherein an oil supply pipe is communicated between the oil tank and the float type carburetor, and the oil circuit system is characterized in that: an oil pumping mechanism for pumping oil from the float carburetor to the oil tank in a one-way mode is communicated between the float carburetor and the oil tank, an oil suction end of the oil pumping mechanism is communicated with the float carburetor, and an oil discharge end of the oil pumping mechanism is communicated with the oil tank.
2. The oil passage system of a gasoline engine according to claim 1, characterized in that: the fuel supply pipe is connected with a fuel switch.
3. The oil passage system of a gasoline engine according to claim 2, characterized in that: the oil suction end of the oil pumping mechanism is positioned at the bottom of an oil cup of the float type carburetor.
4. The oil passage system of a gasoline engine according to claim 3, characterized in that: the oil pumping mechanism comprises an oil pumping device which is a manual pressing type oil pumping device.
5. The oil passage system of a gasoline engine according to claim 4, characterized in that: the oil pumping device is arranged on the float type carburetor and is directly communicated with the float type carburetor.
6. The oil passage system of a gasoline engine according to claim 4, characterized in that: the oil pumping device is arranged on the oil tank and is directly communicated with the oil tank.
7. The oil passage system of a gasoline engine according to any one of claims 4 to 6, characterized in that: the oil discharge end of the oil pumping mechanism is positioned at the top of the oil tank.
8. The oil passage system of a gasoline engine according to claim 4 or 5, characterized in that: the oil pumping mechanism further comprises an oil discharge pipe communicated with the oil pumping device, and one end, far away from the oil pumping device, of the oil discharge pipe is communicated with the oil tank.
9. The oil passage system of a gasoline engine according to claim 8, characterized in that: and one end of the oil discharge pipe, which is far away from the oil pumping device, extends into the oil tank from the lower part of the oil tank and extends to the top of the oil tank.
10. The oil passage system of a gasoline engine according to claim 8, characterized in that: one end of the oil discharge pipe, which is far away from the oil pumping device, is communicated with the oil tank through a part, which is positioned between the oil tank and the fuel switch, on the oil supply pipe.
11. The oil passage system of a gasoline engine according to claim 10, characterized in that: the oil discharge pipe is an oil discharge channel which is integrally formed with the float type carburetor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110330105.3A CN112855396A (en) | 2021-03-29 | 2021-03-29 | Oil circuit system of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110330105.3A CN112855396A (en) | 2021-03-29 | 2021-03-29 | Oil circuit system of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112855396A true CN112855396A (en) | 2021-05-28 |
Family
ID=75993040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110330105.3A Pending CN112855396A (en) | 2021-03-29 | 2021-03-29 | Oil circuit system of gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112855396A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598650A (en) * | 1979-01-20 | 1980-07-26 | Toyota Motor Corp | Recovering equipment for fuel vapour |
| JPH08165955A (en) * | 1994-08-26 | 1996-06-25 | Kubota Corp | Fuel bleeding device for carburetor |
| JP2005248768A (en) * | 2004-03-02 | 2005-09-15 | Honda Motor Co Ltd | Fuel injection device |
| US20090308357A1 (en) * | 2006-08-01 | 2009-12-17 | Honda Motor Co., Ltd | Automatic residual fuel vent device for carburetor |
| CN214499274U (en) * | 2021-03-29 | 2021-10-26 | 重庆宗申通用动力机械有限公司 | Oil circuit system of gasoline engine |
-
2021
- 2021-03-29 CN CN202110330105.3A patent/CN112855396A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598650A (en) * | 1979-01-20 | 1980-07-26 | Toyota Motor Corp | Recovering equipment for fuel vapour |
| JPH08165955A (en) * | 1994-08-26 | 1996-06-25 | Kubota Corp | Fuel bleeding device for carburetor |
| JP2005248768A (en) * | 2004-03-02 | 2005-09-15 | Honda Motor Co Ltd | Fuel injection device |
| US20090308357A1 (en) * | 2006-08-01 | 2009-12-17 | Honda Motor Co., Ltd | Automatic residual fuel vent device for carburetor |
| CN214499274U (en) * | 2021-03-29 | 2021-10-26 | 重庆宗申通用动力机械有限公司 | Oil circuit system of gasoline engine |
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