CN219673420U - Refuel limit exhaust valve with bypass hole - Google Patents
Refuel limit exhaust valve with bypass hole Download PDFInfo
- Publication number
- CN219673420U CN219673420U CN202320691020.2U CN202320691020U CN219673420U CN 219673420 U CN219673420 U CN 219673420U CN 202320691020 U CN202320691020 U CN 202320691020U CN 219673420 U CN219673420 U CN 219673420U
- Authority
- CN
- China
- Prior art keywords
- float
- valve body
- valve
- floater
- top surface
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 12
- 239000000295 fuel oil Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to the field of conveying equipment or systems from a storage container to a carburetor or a fuel injection device, in particular to a refueling limit exhaust valve with a bypass hole. The utility model provides a refuel limit vent valve with by-pass hole, includes valve casing (1), characterized by: still include valve body (2), first float (3), sealed pad (4), second float (5), sealing washer (6), hasp (7), spring (8) and O type circle (9), the bottom of first float (3) is established in the bottom of valve body (2) inner chamber through spring (8) cover, and on the top surface of first float (3) was inserted to second float (5), lined with sealed pad (4) between the intermediate baffle of first float (3) and the bottom surface of second float (5), the top surface of valve body (2) is equipped with two at least exhaust holes (21). The utility model has simple structure, large exhaust capacity, safety and reliability.
Description
Technical Field
The utility model relates to the field of conveying equipment or systems from a storage container to a carburetor or a fuel injection device, in particular to a refueling limit exhaust valve with a bypass hole.
Background
In order to ensure normal oil supply, the oil tank of the motor vehicle needs to be communicated with the outside atmosphere through an oil drain valve, and fuel oil used by the motor vehicle is generally volatile hydrocarbon and is easy to escape through the oil drain valve during use, so that fuel oil loss and environmental pollution are caused.
Disclosure of Invention
In order to ensure normal oil supply and prevent accidents, the motor vehicle oil tank needs to be communicated with the outside atmosphere through an exhaust valve, and the maximum exhaust amount of the existing exhaust valve is limited, so that the improvement of the oiling performance is limited.
In order to overcome the defects of the prior art, the utility model provides a valve structure which is simple in structure, large in exhaust capacity, safe and reliable, and discloses an oiling limit exhaust valve with a bypass hole.
The utility model achieves the aim through the following technical scheme:
the utility model provides a refuel limit of discharge valve with by-pass hole, includes valve casing, characterized by: the valve also comprises a valve body, a first floater, a sealing gasket, a second floater, a sealing ring, a lock catch, a spring and an O-shaped ring,
the valve body lid is in the uncovered department of valve casing, the external diameter of first float is less than the internal diameter of valve body, the bottom of first float passes through the spring housing and establishes in the bottom of valve body inner chamber, the second float is inserted and is located on the top surface of first float, it has sealed the pad to line between the bottom surface of the intermediate baffle of first float and second float, and sealed pad passes through the hasp to be fixed on the intermediate baffle of first float, it has the sealing washer to line between the lateral wall of second float and the top surface of first float, be equipped with O type circle on the neck lateral surface of valve body top surface, the top surface of valve body is equipped with two at least exhaust holes.
The oiling limit exhaust valve with the bypass hole is characterized in that: the outer diameter of the first floater is 75% -95% of the inner diameter of the valve body (2).
When the utility model is used, the utility model is arranged in the oil tank, and the upper outlet of the valve body is communicated with the atmosphere. The lower part is connected with the oil tank, fuel steam in the oil tank enters from the lower part of the valve body and flows out from the upper part of the valve body, a first floater, a second floater and a spring are arranged in the valve body to prevent fuel leakage, and because the first floater and the second floater, when the air flow in the valve body reaches a certain degree, the valve body is closed due to upward thrust of the air flow to the first floater and the second floater, and an auxiliary exhaust hole is added at the top of the valve body. The utility model adds two auxiliary vent holes, when the valve body is exhausted, part of air flow enters the inner cavity of the valve body from top to bottom through the top auxiliary vent holes, and the air flow generates a small downward pressure on the first floater and the second floater due to the reverse direction of the air flow, so that the valve body is prevented from being closed, the maximum exhaust amount is increased, and the exhaust performance of the product is improved. The present utility model can increase the maximum exhaust capacity by at least L/min.
The utility model has the following beneficial effects: simple structure, large exhaust capacity, safety and reliability.
Drawings
Figure 1 is a cross-sectional view in the front view of the present utility model,
fig. 2 is a perspective view of the present utility model.
Detailed Description
The utility model is further illustrated by the following specific examples.
Examples
An oil-filling limit exhaust valve with a bypass hole comprises a valve shell 1, a valve body 2, a first floater 3, a sealing gasket 4, a second floater 5, a sealing ring 6, a lock catch 7, a spring 8 and an O-shaped ring 9,
the valve body 2 is covered at the opening of the valve housing 1, the outer diameter of the first float 3 is smaller than the inner diameter of the valve body 2, and the outer diameter of the first float 3 in this embodiment takes 95% of the inner diameter of the valve body 2. The bottom of first float 3 is established in the bottom of valve body 2 inner chamber through spring 8 cover, and second float 5 inserts and locates on the top surface of first float 3, and it has sealed 4 to line between the middle baffle of first float 3 and the bottom surface of second float 5, and sealed 4 passes through hasp 7 to be fixed on the middle baffle of first float 3, and it has sealing washer 6 to line between the lateral wall of second float 5 and the top surface of first float 3, is equipped with O type circle 9 on the neck lateral surface of valve body 2 top surface, and the top surface of valve body 2 is equipped with two at least exhaust holes 21.
When the embodiment is used, the embodiment is arranged in the oil tank, and the upper outlet of the valve body 2 is communicated with the atmosphere. The lower part is connected with an oil tank, fuel vapor in the oil tank enters from the lower part of the valve body 2 and flows out from the upper part, as shown by an arrow in fig. 1, a first floater 3, a second floater 5 and a spring 8 are arranged in the valve body 2 to prevent fuel leakage, and due to the first floater 3 and the second floater 5, when the air flow in the valve body 2 reaches a certain degree, the upward thrust of the air flow to the first floater 3 and the second floater 5 can enable the valve body 2 to be closed, and 2 auxiliary exhaust holes 21 are added at the top of the valve body 2. Originally, gas upwards flows from the bottom of the valve body 2, if the flow is large enough, the first floater 3 and the second floater 5 can be blown up to seal the valve body 2, two auxiliary exhaust holes 21 are additionally arranged in the embodiment, when the valve body 2 is exhausted, partial gas flow enters the inner cavity of the valve body 2 from top to bottom through the top auxiliary exhaust holes 21, and the gas flow direction is opposite, so that the gas flow can generate smaller downward pressure on the first floater 3 and the second floater 5 to prevent the valve body 2 from being sealed, thereby increasing the maximum exhaust amount and increasing the exhaust performance of products. The present embodiment may increase the maximum exhaust capacity by at least 20L/min.
Claims (2)
1. The utility model provides a refuel limit vent valve with by-pass hole, includes valve casing (1), characterized by: also comprises a valve body (2), a first floater (3), a sealing gasket (4), a second floater (5), a sealing ring (6), a lock catch (7), a spring (8) and an O-shaped ring (9),
the valve body (2) is covered in the open department of valve casing (1), the external diameter of first float (3) is less than the internal diameter of valve body (2), the bottom of first float (3) is established in the bottom of valve body (2) inner chamber through spring (8) cover, second float (5) are inserted on the top surface of first float (3), it has sealed pad (4) to line between the bottom surface of the intermediate baffle of first float (3) and second float (5), and sealed pad (4) are fixed on the intermediate baffle of first float (3) through hasp (7), line has sealing washer (6) between the lateral wall of second float (5) and the top surface of first float (3), be equipped with O type circle (9) on the neck lateral surface of valve body (2) top surface, the top surface of valve body (2) is equipped with two at least exhaust holes (21).
2. The refuelling limited bleed valve with bypass orifice of claim 1, wherein: the outer diameter of the first floater (3) is 75-95% of the inner diameter of the valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320691020.2U CN219673420U (en) | 2023-03-31 | 2023-03-31 | Refuel limit exhaust valve with bypass hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320691020.2U CN219673420U (en) | 2023-03-31 | 2023-03-31 | Refuel limit exhaust valve with bypass hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219673420U true CN219673420U (en) | 2023-09-12 |
Family
ID=87893561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320691020.2U Active CN219673420U (en) | 2023-03-31 | 2023-03-31 | Refuel limit exhaust valve with bypass hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219673420U (en) |
-
2023
- 2023-03-31 CN CN202320691020.2U patent/CN219673420U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |