CN108825416A - A kind of breather valve, fuel tank cap and fuel tank - Google Patents
A kind of breather valve, fuel tank cap and fuel tank Download PDFInfo
- Publication number
- CN108825416A CN108825416A CN201810681936.3A CN201810681936A CN108825416A CN 108825416 A CN108825416 A CN 108825416A CN 201810681936 A CN201810681936 A CN 201810681936A CN 108825416 A CN108825416 A CN 108825416A
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- China
- Prior art keywords
- fuel tank
- valve body
- section
- air pressure
- valve
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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
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
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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
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The present invention relates to the breather valve technical fields for keeping air pressure balance, more particularly to a kind of breather valve, fuel tank cap and fuel tank, a kind of breather valve, including valve body, the middle part of the valve body is equipped with through-hole, the bottom end of the valve body is equipped be connected to and the breather cheek valve that can open when air pressure is greater than lower section air pressure above with the through-hole, and the periphery of the valve body is equipped with the unidirectional outlet portion flexible that can be jacked up upwards when lower section air pressure is greater than top air pressure；So that the volatilization gas in fuel tank will not be discharged under fuel tank closed state; it is not contaminated that natural environment is effectively protected; and it tilts or is inverted in fuel tank; the present invention guarantees that the oil in fuel tank will not flow out; to guaranteeing safety in fuel tank use, it effectively prevent fuel tank because of crack damage caused by internal and external pressure difference；In addition, the present invention is in use, air inlet and outlet are independent of each other, and air inlet and outlet not will cause and impact to the structure of invention itself.
Description
Technical field
The present invention relates to the breather valve technical fields for keeping air pressure balance, and in particular to a kind of breather valve, fuel tank cap and oil
Case.
Background technique
Relief valve is set in order to keep air pressure inside to balance in many equipment at present.Such as fuel tank etc., existing gasoline, bavin
The fuel tank cap of oil turbine fuel tank is all made of carbon dust and absorption sponge to stop gasoline, diesel volatilization to be overflowed.But result people not to the utmost
Meaning, a large amount of volatilization gas are exhausted directly to pollute air in atmospheric environment.Especially engine operation when shake, inclination, even
It is inverted, can all there is a large amount of gentle spillings of oil, it is serious to pollute air and environment, the health of people is influenced, or even will cause spontaneous combustion
Etc. security risks.
There are the patent of the related breather valve to trim tank inner and outer air pressure, such as intake valve and air outlet valve collection in the prior art
In on a valve carrier, the problem of such technical solution is primarily present is：Air inlet and outlet are easy to cause the change of valve carrier
Shape, causing intake valve or exhaust valve to block causes the valve carrier of equilibrium air pressure to be easily damaged, and then does not have preferable equilibrium oil
The effect of case inner and outer air pressure.
In addition, some patents about the split type valve of equilibrium air pressure in the prior art are gone back, though intake valve and air outlet valve
Be so be separately fixed on valve carrier because the air inlet and outlet in its technical solution be all it is vertically disposed, cause pass in and out gas
Still there is certain influence.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of breather valve, fuel tank cap and fuel tanks, solve above-mentioned technology and ask
Topic.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of breather valve, including valve body, the valve body
Middle part be equipped with through-hole, the bottom end of the valve body is equipped be connected to and meeting when air pressure is greater than lower section air pressure above with the through-hole
The periphery of the breather cheek valve of opening, the valve body is soft equipped with that can be jacked up upwards when lower section air pressure is greater than top air pressure
The unidirectional outlet portion of property.
The beneficial effects of the invention are as follows：By the way that breather cheek valve, and the breather cheek valve are arranged on the valve body
It will be extraneous when air pressure higher than below the valve body for (outside on the valve body top) air pressure above the valve body
Air imports fuel tank internal, and the unidirectional outlet portion is used for fuel tank internal high pressure when air pressure is higher than its external atmospheric pressure on the inside of it
Gas is discharged in outside air, and the combination in the breather cheek valve and the unidirectional outlet portion makes the gas of upper and lower of the present invention
Pressure keeps balance, so that the volatilization gas in fuel tank will not be discharged under fuel tank closed state, natural environment is effectively protected not
It is contaminated, and tilt or be inverted in fuel tank, the present invention guarantees that the oil in fuel tank will not flow out, to guarantee safety in fuel tank use
Property effectively prevent fuel tank because of crack damage caused by internal and external pressure difference；In addition, the present invention is in use, air inlet and outlet
It is independent of each other, and air inlet and outlet not will cause and impact to the structure of invention itself.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the circumferential edge in the unidirectional outlet portion is equipped with turned-out arc flange.
Beneficial effect using above-mentioned further scheme is：The arc flange can effectively avoid extraneous gas from entering
In the fuel tank.
Further, the thickness at its both ends is thicker than in the middle part of the arc flange vertical section.
Beneficial effect using above-mentioned further scheme is：Further more effectively avoid extraneous gas from week of the invention
Enter in the fuel tank to edge, and the air pressure on the inside of the unidirectional outlet portion is higher than the air pressure on the outside of the unidirectional outlet portion
When, be conducive to circumferential edge of the present invention and jacked up, meanwhile, the arc flange is exhausted after also being jacked up；Structure simply at
This is low, and use is safe, reliable performance.
Further, the valve body, the unidirectional outlet portion and the arc flange are integrally formed.
Beneficial effect using above-mentioned further scheme is：The valve body, the unidirectional outlet portion and the arc turn over
While being integrated composition, integraty is good, easy to process, and durable failure rate is low.
Further, the bottom wall of the vertical section in the unidirectional outlet portion is by close to one end of the valve body to separate institute
State one end of valve body inclined arcuate structure gradually downward.
Beneficial effect using above-mentioned further scheme is：In two sides air pressure balance of the present invention, the unidirectional outlet portion
It can be good at covering leakproof fuel cell, the air pressure on the inside of only unidirectional outlet portion is higher than the air pressure on the outside of the unidirectional outlet portion
When, the unidirectional outlet portion circumferential edge can be just exhausted by slightly jacking up；Arcwall face body structure surface product is big, therefore arcwall face
Stress is larger, carries out pressure release convenient for unidirectional, and make wall thickness arteriopathy good, using effect is good.
Further, the roof of the unidirectional outlet portion vertical section is to tilt down the identical arc knot in direction with its bottom wall
Structure.
Beneficial effect using above-mentioned further scheme is：In two sides air pressure balance of the present invention, the unidirectional outlet portion
It can be good at covering leakproof fuel cell, the air pressure on the inside of the only described unidirectional outlet portion is higher than the gas on the outside of the unidirectional outlet portion
When pressure, the unidirectional outlet portion peripheral edge portion can be just exhausted by slightly jacking up.
Further, the thickness in the unidirectional outlet portion is by close to one end of the valve body to one far from the valve body
It holds gradually thinning.
Beneficial effect using above-mentioned further scheme is：Air pressure on the inside of the one-way air inlet portion be higher than it is described unidirectionally into
When air pressure on the outside of gas portion, the only described one-way air inlet portion circumferential edge position can be just exhausted by slightly jacking up, so that single
It will not be jacked up to the position of the closer valve body of intake section, in the air pressure balance of one-way air inlet portion two sides, more
The good position for jacking up it restores to the original state, that is, closes unidirectional outlet portion.
Further, the circumferential edge of the valve body is circular configuration, and the unidirectional outlet portion is that surfaces externally and internally is arc
The horn-like structure of shape.
Beneficial effect using above-mentioned further scheme is：So that being bonded no dead angle with the fuel tank cap, airtightness is improved.
Further, the breather cheek valve includes being clamped section and necking section, the top of the clamping section and the valve body
Bottom end connection, it is described clamping section bottom end connect with the top of the necking section；The clamping intersegmental part is equipped with through its top
The venting cavity A at bottom both ends, is equipped with venting cavity B in the necking section, the venting cavity A respectively with the venting cavity B and described logical
Hole connection, necking section lower end are equipped with the notch seam being connected to the venting cavity B.
Beneficial effect using above-mentioned further scheme is：Realize stationary flow of the air-flow in venting cavity A and venting cavity B
Turn；By offering notch seam in necking section lower end, the entrance of the minimum flow of ambient atmos is realized, has higher adjusting essence
Degree, and in venting cavity B and the fuel tank between be separated by notch seam, air pressure imbalance can be such that notch seam opens quickly, sensitive journey
Degree is high, makes it possible to that very efficiently air pressure is adjusted.
Further, the upper end of the clamping section is circumferentially with the raised A and flexible ring of flexible annular
There are spacing between the raised B of shape, the protrusion A and the protrusion B.
Beneficial effect using above-mentioned further scheme is：Spacing between the protrusion A and the protrusion B makes spacing
Part is the equal of the annular groove to be formed, and convenient for being connected in the fuel tank cap, that is, fuel tank cap is equipped with and the ring
The corresponding hole of connected in star, after the breather cheek valve enters the hole in fuel tank cap, the annular groove is stuck on the hole of fuel tank cap；
After the present invention is connected in fuel tank cap, the lower surface of the protrusion A is bonded with fuel tank cap.
Further, the cross section of the necking section from top to bottom is gradually reduced.
Beneficial effect using above-mentioned further scheme is：By the way that venting cavity B is designed as diminishing shape, realize
Effective convergence of air is unlikely to excessive air inlet in air pressure adjustment, realize adjust it is accurate high.
Further, the valve body is integrally formed with the breather cheek valve, the clamping section and the protrusion A and institute
Raised B is stated to be integrally formed.
Beneficial effect using above-mentioned further scheme is：Structure is simple, and integraty is good, reliable performance, life easy to process
It produces.
The present invention also provides a kind of technical solutions：A kind of fuel tank cap, the breather valve including such as above-mentioned technical proposal.
The present invention also provides a kind of technical solutions：A kind of fuel tank, including a kind of fuel tank such as above-mentioned technical proposal
Lid.
Beneficial effect using above-mentioned further scheme is：It can be realized and be higher than institute in the unidirectional outlet portion external atmospheric pressure
Outside air is imported into fuel tank internal when stating air pressure on the inside of unidirectional outlet portion, air pressure is higher than described on the inside of the unidirectional outlet portion
Fuel tank internal high pressure gas is discharged in outside air when unidirectional outlet portion external atmospheric pressure, so that fuel tank internal and external pressure
Balance is kept, so that the volatilization gas in fuel tank will not be discharged under fuel tank closed state, natural environment is effectively protected not
It is contaminated, and tilt or be inverted in fuel tank, breather valve guarantees that the oil in fuel tank will not flow out, to guarantee safety in fuel tank use
Property effectively prevent fuel tank because of crack damage caused by internal and external pressure difference.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is front view of the invention；
Fig. 3 is the cross-sectional view of Fig. 2；
Fig. 4 is the side view of Fig. 2；
Fig. 5 is the top view of Fig. 2；
In attached drawing, parts list represented by the reference numerals are as follows：
1, valve body, 2, arc flange, 3, through-hole, 4, necking section, 5, venting cavity A, 6, venting cavity B, 7, notch seam, 8, convex
Play A, 9, protrusion B, 10, clamping section, 11, unidirectional outlet portion.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, a kind of breather valve, including valve body 1, the middle part of the valve body 1 are equipped with through-hole 3, the through-hole 3
Through the top and bottom ends of the valve body 1；The bottom end of the valve body 1 be equipped be connected to the through-hole 3 and above air pressure it is big
The breather cheek valve that can be opened when the air pressure of lower section, the periphery of the valve body 1 are equipped with when lower section air pressure is greater than top air pressure
Can the unidirectional outlet portion 11 flexible that be jacked up upwards, 1 circumferential edge of valve body extend to form around it is described it is unidirectional go out
Gas portion 11；Breather cheek valve or unidirectional 11 peripheral edge of outlet portion are opened when about the 1 two sides air pressure imbalance of valve body
Edge is jacked up.
Specifically, the breather cheek valve be for above the valve body 1 air pressure be higher than the valve body 1 below
When air pressure by outside air import fuel tank internal check valve, the unidirectional outlet portion 11 be on the inside of it air pressure be higher than its
Fuel tank internal high pressure gas is discharged in outside air when external atmospheric pressure.
As shown in Figs. 1-5, further, unidirectional outlet portion 11 is inside, the list close to the side of the breather cheek valve
It is outside to side of the outlet portion 11 on the inside of it, the circumferential edge in the unidirectional outlet portion 11 is equipped with turned-out arc and turns over
Side 2.The arc flange 2 can effectively avoid extraneous gas from entering in the fuel tank.
As shown in Fig. 2, being thicker than the thickness at its both ends in the middle part of 2 vertical section of arc flange.The unidirectional outlet portion
The bottom wall of 11 vertical section is by inclining gradually downward close to one end of the valve body 1 to one end far from the valve body 1
Oblique arcuate structure, wherein " bottom wall " is the inner sidewall in the unidirectional outlet portion 11.Unidirectional 11 vertical section of outlet portion
Roof (lateral wall) is to tilt down the identical arcuate structure in direction with its bottom wall, and in other words, the valve body 1 is also using soft
Property material is made, and the valve body 1, the unidirectional outlet portion 11 are integrally formed and general structure is equivalent to leather cup structure,
It can be the valve body 1, the unidirectional outlet portion 11 is all made of elastic material and is made.
The beneficial effect of above scheme is：The thin structure in the middle part thickness both sides of the arc flange 2 unidirectionally goes out in conjunction with described
Gas portion 11 outboard sidewalls (surfaces externally and internally) is the face of arcuate structure, further more effectively avoids extraneous gas from described unidirectional
The circumferential edge of intake section 11 enters in the fuel tank, and the air pressure in 11 inside of the one-way air inlet portion be higher than it is described unidirectionally into
When the air pressure in 11 outside of gas portion, be conducive to be exhausted after 11 peripheral edge portion of one-way air inlet portion is jacked up, due to arc
The tension in face is big, resiles after being conducive to 1 peripheral edge portion of the valve body exhaust, that is, closes the unidirectional outlet portion；Knot
Structure is simply at low cost, and use is safe, reliable performance.
As shown in Figs 1-4, the valve body 1 is integrally formed with the arc flange 2；The thickness in the unidirectional outlet portion 11
Degree is gradually thinning to one end far from the valve body 1 by one end of the close valve body 1, i.e. the unidirectional outlet portion 11 weeks
Extrorse thickness is less than it close to the thickness of 1 part of valve body；The air pressure of 11 inside of unidirectional outlet portion is higher than institute
When stating the air pressure in unidirectional 11 outside of outlet portion, only described unidirectional 11 peripheral edge portion of outlet portion can just be arranged by slightly jacking up
Gas, in the air pressure balance of 1 two sides of valve body, preferably makes it so that valve body 1 will not be jacked up compared with the position at middle part
The position jacked up restores to the original state, that is, closes unidirectional outlet portion.
As shown in figure 5, the circumferential edge of the valve body 1 is circular configuration, the unidirectional outlet portion 11 is surfaces externally and internally
It is the horn-like substantially horn-like structure of arc, specifically, the valve body 1 and the one-way air inlet portion 11 are integrally formed
Appearance afterwards is hemispherical configuration, so that being bonded no dead angle with the fuel tank cap, improves airtightness.
As in Figure 3-5, the breather cheek valve includes clamping section 10 and necking section 4, the top of the clamping section 10 with
The bottom end of the valve body 1 connects, and the bottom end of the clamping section 10 is connect with the top of the necking section 4；The clamping section 10
Inside is equipped with the venting cavity A5 through its top and bottom ends, is equipped with venting cavity B6 in the necking section 4, the venting cavity A5 respectively with
The venting cavity B6 is connected to the through-hole 3, and 4 lower end of necking section is equipped with the notch seam 7 being connected to the venting cavity B6.Institute
The cross section of necking section 4 from top to bottom is stated to be gradually reduced.
Specifically, the shape of the clamping section 10 is cylindrical-shaped structure, the venting cavity A5 is transversal with the through-hole 3
Face shape size is identical, and the venting cavity A5, the venting cavity B6 and notch seam 7 are connected to outside air, the venting cavity
The cross-sectional shape of A5 is identical, and the cross section the venting cavity B6 is gradually reduced from top to bottom, at notch seam 7, realizes
When ambient pressure is greater than fuel tank internal air pressure, the entrance of the minimum flow of ambient atmos has higher degree of regulation, and venting cavity
It is separated by notch seam 7 between in B6 and the fuel tank, air pressure imbalance can be such that notch seam 7 opens quickly, and sensitivity level is high, so that
Very efficiently air pressure can be adjusted.
As shown in Figs 1-4, the upper end of the clamping section 10 is circumferentially with the raised A8 of flexible annular and has
The raised B9 of the annular of elasticity, there are spacing between the protrusion A8 and the protrusion B9；The protrusion A8 and the protrusion B9 are equal
It is made of elastic material.
Specifically, protrusion A8 connects the upper end of the clamping section 10, and end face is connect with the valve body 1 thereon,
The protrusion B9 is also connected to the upper end of the clamping section 10, and is located at the lower section of the protrusion B9, the protrusion A8 and institute
The annular groove crossed between raised B9 around clamping 10 lateral wall one of section circle is stated, in addition, the valve body 1 and the one-way air inlet
Valve is integrally formed, and the clamping section 10 is integrally formed with the protrusion A8 and the protrusion B9, and structure is simple, and performance can
It leans on, production easy to process.
In the present embodiment, the vertical section of the protrusion B9 is triangle, so the protrusion B9 is there are three in total
The circle cyclic structure in face, a face (inner peripheral surface of raised B9) connect with the 10 upper end side wall of clamping section, the protrusion
B9 is parallel with the lower surface of the protrusion A8 close to the side of protrusion A8, and the protrusion B9 is where the side of protrusion A8
Face perpendicular to the clamping section 10；Fuel tank cap is equipped with hole corresponding with the annular groove, the breather cheek valve insertion
Behind hole in fuel tank cap, the annular groove is stuck on the hole of fuel tank cap；After the present invention is connected in fuel tank cap, the protrusion
The lower surface of A8 is bonded with fuel tank cap.
Beneficial effects of the present invention：The present invention enables to arrange the volatilization gas in fuel tank under fuel tank closed state
Out, it is not contaminated that natural environment is effectively protected, and tilts or is inverted in fuel tank, the present invention guarantees that the oil in fuel tank will not flow
Out, to guarantee safety in fuel tank use, it effectively prevent fuel tank because of crack damage caused by internal and external pressure difference；In addition, this hair
Bright air inlet and outlet are independent of each other in use, and air inlet and outlet not will cause and cause to the structure of invention itself
It influences.
Working principle：The breather cheek valve is inserted into fuel tank cap corresponding position, 10 upper end of clamping section and fuel tank cap card
It connects, fuel tank cap is had porous venthole on portion that the valve body 1 and unidirectional outlet portion 11 cover, on the outside of the present invention
When air pressure is higher than inside air pressure, the notch seam 7 of 4 lower end of necking section can be opened, otherwise the side wall of notch seam 7 is in draught head
It can be extruded and be bonded under effect, to realize the effect of one-way air inlet；When air pressure is higher than external atmospheric pressure on the inside of the present invention,
Gas in fuel tank is gone out from the venthole in fuel tank cap, and unidirectional 11 circumferential edge position of outlet portion is jacked up by internal gas, is made
Obtain gas discharge.
In the present invention, it is to be understood that "upper", "lower" etc. are to be based on the orientation or positional relationship shown in the drawings, only
It is that for the convenience of describing the present invention and simplifying the description, rather than indication or suggestion must have a particular orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of breather valve, which is characterized in that including valve body (1), the middle part of the valve body (1) is equipped with through-hole (3), described
The bottom end of valve body (1) be equipped be connected to the through-hole (3) and above air pressure greater than lower section air pressure when can open it is unidirectional into
Air valve, the periphery of the valve body (1) are flexible unidirectional equipped with what can be jacked up upwards when lower section air pressure is greater than top air pressure
Outlet portion (11).
2. a kind of breather valve according to claim 1, which is characterized in that the circumferential edge of the unidirectional outlet portion (11) is set
There is turned-out arc flange (2).
3. a kind of breather valve according to claim 2, which is characterized in that the middle part of arc flange (2) vertical section
It is thicker than the thickness at its both ends.
4. according to a kind of described in any item breather valves of claim 2-3, which is characterized in that the unidirectional outlet portion (11) is erected
The bottom wall in straightforward face is to be tilted gradually downward by one end close to the valve body (1) to one end far from the valve body (1)
Arcuate structure；
The roof of unidirectional outlet portion (11) vertical section is to tilt down the identical arcuate structure in direction with its bottom wall.
5. a kind of breather valve according to claim 4, which is characterized in that the thickness of the unidirectional outlet portion (11) is by close
One end of the valve body (1) is gradually thinning to one end far from the valve body (1).
6. a kind of breather valve according to claim 5, which is characterized in that the circumferential edge of the valve body (1) is circle
Structure, the unidirectional outlet portion (11) are the horn-like structure that surfaces externally and internally is arc.
7. -3, a kind of described in any item breather valves of 5-6 according to claim 1, which is characterized in that the breather cheek valve includes
It is clamped section (10) and necking section (4), the top of clamping section (10) is connect with the bottom end of the valve body (1), the clamping
The bottom end of section (10) is connect with the top of the necking section (4)；It is equipped with inside clamping section (10) through its top and bottom ends
Venting cavity A (5) is equipped with venting cavity B (6) in the necking section (4), the venting cavity A (5) respectively with the venting cavity B (6) and
Through-hole (3) connection, necking section (4) lower end are equipped with the notch seam (7) being connected to the venting cavity B (6)；
The cross section of the necking section (4) from top to bottom is gradually reduced.
8. a kind of breather valve according to claim 7, which is characterized in that the upper end of clamping section (10) is circumferentially with
The raised B (9) of the raised A (8) of flexible annular and flexible annular, the protrusion A (8) and the protrusion B (9)
Between there are spacing.
9. a kind of fuel tank cap, which is characterized in that including such as described in any item breather valves of claim 1-8.
10. a kind of fuel tank, which is characterized in that including a kind of fuel tank cap as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810681936.3A CN108825416A (en) | 2018-06-27 | 2018-06-27 | A kind of breather valve, fuel tank cap and fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810681936.3A CN108825416A (en) | 2018-06-27 | 2018-06-27 | A kind of breather valve, fuel tank cap and fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825416A true CN108825416A (en) | 2018-11-16 |
Family
ID=64139074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810681936.3A Pending CN108825416A (en) | 2018-06-27 | 2018-06-27 | A kind of breather valve, fuel tank cap and fuel tank |
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| Country | Link |
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| CN (1) | CN108825416A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109763921A (en) * | 2019-03-20 | 2019-05-17 | 宁波利凯特环保科技有限公司 | A kind of digital electricity generating cover structure for fuel tank |
| CN112196787A (en) * | 2020-09-29 | 2021-01-08 | 北汽福田汽车股份有限公司 | Hydraulic pressure upset oil pump and vehicle that has it |
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