CN206647186U - A kind of multifunctional control valve - Google Patents
A kind of multifunctional control valve Download PDFInfo
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- CN206647186U CN206647186U CN201720419111.5U CN201720419111U CN206647186U CN 206647186 U CN206647186 U CN 206647186U CN 201720419111 U CN201720419111 U CN 201720419111U CN 206647186 U CN206647186 U CN 206647186U
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- spacer
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- fluid collection
- collection chamber
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Abstract
The utility model provides a kind of multifunctional control valve, and it adds fluid collection chamber in valve body so that fuel liquid will not be entered in canister, and then ensures the smooth and emission compliance that refuels.It includes shell, include upper chamber in the shell, central cavity, lower cavity, the inner chamber of the fuel tank of the corresponding installation of bottom connection of the lower cavity, the upper chamber passes through the external oil filling pipe breather pipe of oil filling pipe blow vent, the central cavity includes fluid collection chamber, spacer, protect diaphragm, the top of the fluid collection chamber is provided with spacer, protection diaphragm is disposed with the top air inlet end face of the spacer, the protection diaphragm seals up the stomata of the upper surface of the spacer in the state of lower surface is without enough pressure, the fluid collection chamber includes the liquid accumulating device float on top, lower surface air admission hole of the upper surface respective protrusions of the liquid accumulating device float towards the spacer, the outer end connection canister vent mouth of the conducting cavity of the spacer.
Description
Technical field
The technical field of fuel tank control valve is the utility model is related to, specially a kind of multifunctional control valve.
Background technology
The discharge standard of state six newly issued will be implemented in the year two thousand twenty.The discharge standard of state six has been newly increased to vehicle-mounted petroleum vapor recovery
The requirement of system (English abbreviation ORVR systems).ORVR system requirements fuel tank valve bodies are directly connected to canister, produce during reaching oiling
Raw oil vapour is then exhausted from the purpose of pure air after canister adsorbs.Current valve body technology is direct by nylon pipeline
Connect canister, when driving due to fuel tank ceaselessly rocks and fuel tank in pressure rise, it is easy to cause fuel oil liquid
Body exits into canister from valve body, in turn results in canister blocking, and canister vent resistance becomes big, and user can not refuel and discharge super
Target phenomenon.In addition, if nozzle damage in gas station's causes that rifle can not be jumped automatically, existing valve body can not also prevent fuel liquid
Into canister, cause user can not refuel and discharge exceeded phenomenon.
The content of the invention
In view of the above-mentioned problems, the utility model provides a kind of multifunctional control valve, it adds fluid collection chamber in valve body,
So that fuel liquid will not be entered in canister, and then ensure the smooth and emission compliance that refuels.
A kind of multifunctional control valve, it is characterised in that：It includes shell, includes upper chamber, center lumen in the shell
Body, lower cavity, the inner chamber of the fuel tank of the corresponding installation of bottom connection of the lower cavity, the upper chamber pass through oil filling pipe
The external oil filling pipe breather pipe of blow vent, the central cavity include fluid collection chamber, spacer, protection diaphragm, the fluid collection chamber
Top is provided with spacer, protection diaphragm is disposed with the top air inlet end face of the spacer, the protection diaphragm is in lower end
Stomata of the face without the upper surface that the spacer is sealed up in the state of enough pressure, the fluid collection chamber include the hydrops on top
Device float, the upper surface respective protrusions of the liquid accumulating device float are towards the lower surface air admission hole of the spacer, the spacer
Conducting cavity outer end connection canister vent mouth, be provided with corresponding float in the lower cavity, the lower cavity
Upper surface connects the fluid collection chamber by corresponding venthole.
It is further characterized by：
Stomata outer fix on the protection diaphragm corresponding to the upper surface of the spacer sets restricted orifice, described
The lower section of metering hole connects the upper space of the liquid accumulating device float, and the top of the metering hole connects the upper chamber, institute
The anchor ring for stating the short transverse of liquid accumulating device float is covered and floated in the external boundary of the lower cavity, the shell and the fluid collection chamber
Transfer gap is left between the external boundary of the anchor ring of the short transverse of son, it is ensured that the combustion entered by oil filling pipe blow vent in valve body
Fluid body is entered inside fluid collection chamber along metering hole, transfer gap, then along the upper surface of lower cavity inside fluid collection chamber
Corresponding venthole enter lower cavity, then the bottom of lower cavity flows back into the inner chamber of fuel tank；
The lower cavity is preset with two independent cases, and the upper end wall of two housings is reserved with steam vent, lower end respectively
Wall is respectively equipped with open end face, and the inner chamber of the fuel tank of the corresponding open corresponding installation of end face connection, one of housing is interior to be arranged
There is refueling control float, exhaust float in housing is disposed with another housing；
The fluid collection chamber is combined by the upper end wall of liquid accumulating device float, two independent cases and formed, in hydrops intracavity liquid foot
When more than enough, the liquid accumulating device float can be floated relative to the upper end wall of two independent cases；
The outer ring surface of the upper chamber is additionally provided with Tipping valve blow vent, and the Tipping valve blow vent is used for external overturning
The pipeline of valve；
The shell includes upper lid, outer cover body, lower cover, and the upper surface of the outer cover body is fixed with spacer, described
Diaphragm lid is protected to be loaded on the upper surface center of affiliated outer cover body, the upper external rings of the lid lid loaded on the outer cover body
Face simultaneously forms upper chamber, and the lower cover lid is loaded on the lower surface of the outer cover body, and the lower cover corresponds to described refuel and controlled
The opening position of exhaust float is provided with supporting end face, intercommunicating pore in float processed, housing；
Canister vent mouth, oil filling pipe blow vent, Tipping valve blow vent are respectively arranged with the outer ring surface of the upper lid, it is described
It is described close corresponding to formation sealing middle chamber after the corresponding position encapsulation of the outer cover body at the canister vent mouth of upper lid
Seal the conducting cavity that middle chamber connects the spacer；
The Tipping valve blow vent is communicated to transfer gap by corresponding cavity, be communicated to the fluid collection chamber again inside or
The upper surface of liquid accumulating device float.
After adopting the above technical scheme, because central cavity includes fluid collection chamber, spacer, protection diaphragm, fluid collection chamber
Top is provided with spacer, protection diaphragm is disposed with the top air inlet end face of spacer, protection diaphragm is in lower surface without enough
The top air inlet end face of spacer is sealed up in the state of pressure, fluid collection chamber includes the liquid accumulating device float on top, and liquid accumulating device floats
For the upper surface respective protrusions of son towards the lower surface air admission hole of spacer, the outer end of the conducting cavity of spacer connects canister vent
Mouthful, corresponding float is provided with lower cavity, the upper surface of lower cavity connects fluid collection chamber by corresponding venthole, and it makes
Obtain the liquid flowed into from oil filling pipe blow vent to be blocked by protection diaphragm, cannot be introduced into the stomata of the upper surface of spacer；And make
Obtain the liquid entered from lower cavity in valve body and be temporarily stored into fluid collection chamber, when fluid collection chamber liquid level rises to certain altitude, liquid accumulating device
The upper surface respective protrusions of float block the lower surface air admission hole of spacer, and then it is right make it that liquid cannot be introduced into spacer institute
The conducting cavity answered, and then ensure that fuel liquid will not be entered in canister；To sum up, it adds fluid collection chamber in valve body, makes
Obtaining fuel liquid will not enter in canister, and then ensure the smooth and emission compliance that refuels.
Brief description of the drawings
Fig. 1 is three-dimensional figure structure schematic representation of the present utility model；
Fig. 2 is half-sectional three-dimensional figure structure schematic representation of the present utility model；
Fig. 3 is the attachment structure schematic diagram that the utility model is applied to fuel tank；
Title in figure corresponding to sequence number is as follows：
Shell 1, upper chamber 2, central cavity 3, lower cavity 4, oil filling pipe blow vent 5, fluid collection chamber 6, spacer 7, guarantor
Between cuticula piece 8, liquid accumulating device float 9, respective protrusions 10, lower surface air admission hole 11, conducting cavity 12, canister vent mouth 13, transfer
Gap 14, housing 15, steam vent 16,17, refueling control float 18, the interior exhaust float 19 of housing, Tipping valve blow vent 20, upper lid 1-
1st, outer cover body 1-2, lower cover 1-3, supporting end face 21, intercommunicating pore 22, sealing middle chamber 23, cavity 24
Multifunctional control valve 100, canister exhaust outlet 200, Tipping valve 300, fuel tank 400, oil filling pipe 500, oil filling pipe ventilation
Pipe 600, canister 700.
Embodiment
A kind of multifunctional control valve, is shown in Fig. 1, Fig. 2：It includes shell 1, includes upper chamber 2, central cavity in shell 1
3rd, lower cavity 4, the inner chamber of the fuel tank of the corresponding installation of bottom connection of lower cavity 4, upper chamber 2 pass through oil filling pipe blow vent
5 external oil filling pipe breather pipes, central cavity 3 include fluid collection chamber 6, spacer 7, protection diaphragm 8, and the top of fluid collection chamber 6 is set
There is spacer 7, protection diaphragm 8 is disposed with the top air inlet end face of spacer 7, protection diaphragm 8 is in lower surface without enough pressure
In the state of seal up spacer 7 upper surface stomata, fluid collection chamber 6 includes the liquid accumulating device float 9 on top, liquid accumulating device float
Towards the lower surface air admission hole 11 of spacer 7, the outer end of the conducting cavity 12 of spacer 7 connects 9 upper surface respective protrusions 10
Canister vent mouth 13, corresponding float is provided with lower cavity 4, the upper surface of lower cavity 4 is connected by corresponding venthole
Logical fluid collection chamber 6.
Protect the stomata outer fix of the upper surface on diaphragm 8 corresponding to spacer that restricted orifice 13 is set, it is preferable that
The aperture of metering hole 13 is 2mm, and the upper space of the lower section connection liquid accumulating device float 9 of metering hole 13, the top of metering hole 13 connects
Logical upper chamber 2, the anchor ring of the short transverse of liquid accumulating device float 9 are covered in the external boundary of lower cavity 4, shell 1 and fluid collection chamber
Transfer gap 14 is left between the external boundary of the anchor ring of the short transverse of float 9, it is ensured that valve body is entered by oil filling pipe blow vent 5
Interior fuel liquid is entered inside fluid collection chamber 6 along metering hole 13, transfer gap 14, then along bottom inside fluid collection chamber 6
The corresponding venthole of the upper surface of cavity 4 enters lower cavity 4, then flows back into fuel tank from the bottom of lower cavity 4
Inner chamber；
Lower cavity 4 is preset with two independent cases 15, the upper end walls of two housings 15 be reserved with respectively steam vent 16,
17, the lower end wall of two housings 15 is respectively equipped with open end face, and corresponding open end face connection corresponds to the inner chamber of the fuel tank of installation,
Refueling control float 18 is disposed with one of housing 15, exhaust float 19 in housing is disposed with another housing 15；
Fluid collection chamber 6 is combined by the upper end wall of 9, two independent cases 15 of liquid accumulating device float and formed, the liquid foot in fluid collection chamber 6
When more than enough, liquid accumulating device float 9 can be floated relative to the upper end wall of two independent cases 15；
The outer ring surface of upper chamber 2 is additionally provided with Tipping valve blow vent 20, and Tipping valve blow vent 20 is used for external Tipping valve
Pipeline；
Shell 1 includes upper lid 1-1, outer cover body 1-2, lower cover 1-3, and outer cover body 1-2 upper surface is fixed with spacer
7, upper surface center of the protection lid of diaphragm 8 loaded on outer cover body 1-2, upper external rings of the lid 1-1 lids loaded on outer cover body 1-2
Face simultaneously forms upper chamber 2, and lower surface of the lower cover 1-3 lids loaded on outer cover body 1-2, lower cover 1-3 corresponds to refueling control float
18th, the opening position of exhaust float 19 is provided with supporting end face 21, intercommunicating pore 22 in housing；
Canister vent mouth 13, oil filling pipe blow vent 5, Tipping valve blow vent 20 are respectively arranged with upper lid 1-1 outer ring surface,
Middle chamber 23 is sealed corresponding to formation after outer cover body 1-2 corresponding position encapsulation at upper lid 1-1 canister vent mouth 13,
Seal the conducting cavity 12 that middle chamber 23 connects spacer 7；
Tipping valve blow vent 20 is communicated to transfer gap 14 by corresponding cavity 24, be communicated to the inside of fluid collection chamber 6 again or
The upper surface of liquid accumulating device float 9.
Fig. 3 is the connection status figure of this multifunctional control valve 100 and peripheral component：
Multifunctional control valve 100 is welded on fuel tank 400 by hot plate welding mode, the oiling on multifunctional control valve 100
Pipe blow vent 5 connects oil filling pipe 500；The Tipping valve blow vent 20 of multifunctional control valve 100 connects Tipping valve 300；Multifunctional controlling
The canister vent mouth 13 of valve 100 processed connects canister 700.
Its operation principle is as follows：
The first situation：During oiling, fuel liquid is injected in fuel tank 400 by oil filling pipe 500, and caused oil vapour passes through
Canister vent mouth 13 on multifunctional control valve 100 is discharged to canister 700, and canister 700 has adsorbed the CH compounds in oil vapour,
Clean air is discharged by canister exhaust outlet 200, to reach the purpose of control discharge.There is a kind of fortuitous event to be, if plus
Oil gun damage can not jump rifle automatically when causing to fill it up with oil, then the fuel liquid in oil filling pipe 500 is possible to pour in down a chimney into oil filling pipe
In breather pipe 600, further entered by multifunctional control valve 100 in canister 700, cause canister 700 to block, canister 700 is logical
Atmidometer becomes big, and user can not refuel and discharge exceeded.Because the protection diaphragm 8 in multifunctional control valve 100 is in lower surface
Stomata without the upper surface that spacer 7 is sealed up in the state of enough pressure, pour in down a chimney the fuel liquid into oil filling pipe breather pipe 600
Enter by oil filling pipe blow vent 5 in this multifunctional control valve 100, because protection diaphragm 8 seals spacer 7 so that liquid
The stomata of the upper surface of spacer 7 is cannot flow into, can only be entered along metering hole 13, transfer gap 14 inside fluid collection chamber 6, then
Enter lower cavity 4 along the corresponding venthole of the upper surface of lower cavity 4 inside fluid collection chamber 6, then from lower cavity 4
Bottom flow back into the inner chamber of fuel tank, fluid leakage enters the possibility of canister caused by being damaged which prevent nozzle.
Second of situation：In driving conditions, oil filling pipe 500 is blocked by filler cap.Cause oil because gasoline is readily volatilized
Pressure rise in case 400, it can be now exhausted by multifunctional control valve 100 and Tipping valve 300, the oil gas of discharge
It is then exhausted from after canister 700 adsorbs HC compounds in air to reduce discharge.If vehicle traveling in bumpy road or
During rugged hill path, as fuel oil ceaselessly rocks in fuel tank 400, fuel liquid be possible to rock it is dual with pressure
Through hole corresponding to acting through is poured in multifunctional control valve 100 and Tipping valve 300, is further flowed into canister 700, same meeting
Canister is caused to block, canister vent resistance becomes big, and user can not refuel and discharge exceeded.And due to built-in liquid accumulating device float
9, the fuel liquid poured in from below is entered by the steam vent 16,17 being vented in oil control float 18, housing above float 19
After fluid collection chamber 6, liquid accumulating device float 9 can be floated in the presence of liquid float, and the upper surface respective protrusions of liquid accumulating device float are blocked up
The lower surface air admission hole of diaphragm 8 is firmly protected, and then causes liquid to cannot be introduced into the conducting cavity corresponding to spacer, is prevented
Liquid enters in canister exhaust outlet 13.It can also be entered simultaneously in Tipping valve 300 if fuel liquid by overturning valve outlet hole 20
Enter cavity 24, to transfer gap 14, be communicated to again inside fluid collection chamber 6, it is therefore prevented that liquid in Tipping valve 300 flows into canister 700.
For fluid collection chamber 6 in the case where vehicle enters plateau, whether internal liquid can back flow into oil again by steam vent 16,17
In case 400, it is ensured that subsequent exhaust is normally carried out.
Its advantage is as follows：
Liquid accumulating device built in 1, prevent fuel liquid dynamic leakage from entering canister；
2 built-in protection diaphragms prevent fuel liquid when nozzle jumps rifle failure automatically from entering canister；
The improvement purpose of said structure be all prevent canister block cause can not to refuel and discharge it is exceeded.
Specific embodiment of the utility model is described in detail above, but content is only what the utility model was created
Preferred embodiment, it is impossible to be considered as the practical range for limiting the utility model creation.All created according to the utility model is applied
Equivalent change that scope is made all should be belonged to still within this patent covering scope with improving etc..
Claims (8)
- A kind of 1. multifunctional control valve, it is characterised in that：It includes shell, include in the shell upper chamber, central cavity, Lower cavity, the inner chamber of the fuel tank of the corresponding installation of bottom connection of the lower cavity, the upper chamber are led to by oil filling pipe The external oil filling pipe breather pipe of gas port, the central cavity include fluid collection chamber, spacer, protection diaphragm, the fluid collection chamber it is upper Portion is provided with spacer, protection diaphragm is disposed with the top air inlet end face of the spacer, the protection diaphragm is in lower surface Stomata without the upper surface that the spacer is sealed up in the state of enough pressure, the fluid collection chamber include the liquid accumulating device on top Float, the upper surface respective protrusions of the liquid accumulating device float towards the spacer lower surface air admission hole, the spacer Turn on the outer end connection canister vent mouth of cavity, be provided with corresponding float in the lower cavity, the lower cavity it is upper End face connects the fluid collection chamber by corresponding venthole.
- A kind of 2. multifunctional control valve as claimed in claim 1, it is characterised in that：Correspond on the protection diaphragm it is described every Stomata outer fix from the upper surface of piece sets restricted orifice, and the lower section of the metering hole connects the upper of the liquid accumulating device float Portion space, the top of the metering hole connect the upper chamber, the anchor ring of the short transverse of the liquid accumulating device float cover in In being left between the external boundary of the anchor ring of the short transverse of the external boundary of the lower cavity, the shell and the fluid collection chamber float Turn gap.
- A kind of 3. multifunctional control valve as claimed in claim 2, it is characterised in that：The lower cavity is preset with two independences Housing, the upper end walls of two housings is reserved with steam vent respectively, lower end wall is respectively equipped with open end face, and corresponding open end face connects Lead to the inner chamber of the fuel tank of corresponding installation, be disposed with refueling control float in one of housing, shell is disposed with another housing Exhaust float in vivo.
- A kind of 4. multifunctional control valve as claimed in claim 3, it is characterised in that：The fluid collection chamber is by liquid accumulating device float, two The upper end wall of individual independent case combines to be formed, and when hydrops intracavity liquid is enough, the liquid accumulating device float can be relative to two The upper end wall of independent case is floated.
- A kind of 5. multifunctional control valve as claimed in claim 1, it is characterised in that：The outer ring surface of the upper chamber is also set up There is Tipping valve blow vent, the Tipping valve blow vent is used for the pipeline of external Tipping valve.
- A kind of 6. multifunctional control valve as claimed in claim 3, it is characterised in that：The shell include upper lid, outer cover body, Lower cover, the upper surface of the outer cover body are fixed with spacer, and the protection diaphragm lid is loaded on the upper surface of affiliated outer cover body Center, the outside anchor ring of the upper lid lid loaded on the outer cover body simultaneously form upper chamber, and the lower cover lid is loaded on institute The lower surface of outer cover body is stated, the opening position that the lower cover corresponds to the interior exhaust float of the refueling control float, housing is set There are supporting end face, intercommunicating pore.
- A kind of 7. multifunctional control valve as claimed in claim 6, it is characterised in that：Set respectively on the outer ring surface of the upper lid There are canister vent mouth, oil filling pipe blow vent, Tipping valve blow vent, correspond to the shell sheet at the canister vent mouth of the upper lid Sealing middle chamber is formed after the corresponding position encapsulation of body, the sealing middle chamber connects the conducting chamber of the spacer Body.
- A kind of 8. multifunctional control valve as claimed in claim 7, it is characterised in that：The Tipping valve blow vent passes through corresponding Cavity is communicated to transfer gap, be communicated to the fluid collection chamber again inside or liquid accumulating device float upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720419111.5U CN206647186U (en) | 2017-04-20 | 2017-04-20 | A kind of multifunctional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720419111.5U CN206647186U (en) | 2017-04-20 | 2017-04-20 | A kind of multifunctional control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647186U true CN206647186U (en) | 2017-11-17 |
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ID=60276441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720419111.5U Active CN206647186U (en) | 2017-04-20 | 2017-04-20 | A kind of multifunctional control valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN206647186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917701A (en) * | 2017-04-20 | 2017-07-04 | 苏州欧迪科汽车设计有限公司 | A kind of multifunctional control valve |
-
2017
- 2017-04-20 CN CN201720419111.5U patent/CN206647186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917701A (en) * | 2017-04-20 | 2017-07-04 | 苏州欧迪科汽车设计有限公司 | A kind of multifunctional control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180403 Address after: Tian Road, Suzhou City Industrial Park in Jiangsu province 215000 No. 99 Tian Industrial Square No. 9 plant floor Patentee after: The Hoopoe (Suzhou) Co. Ltd. Automotive Technology Address before: Xinghu Street Industrial Park of Suzhou city in Jiangsu province 215000 C-7 No. 328 audree building two building F-260 room Patentee before: Suzhou Ou dike Automobile Design Company Limited |
|
| TR01 | Transfer of patent right |