CN110985724A - GVV valve pressure maintaining structure and GVV valve - Google Patents
GVV valve pressure maintaining structure and GVV valve Download PDFInfo
- Publication number
- CN110985724A CN110985724A CN201911250207.3A CN201911250207A CN110985724A CN 110985724 A CN110985724 A CN 110985724A CN 201911250207 A CN201911250207 A CN 201911250207A CN 110985724 A CN110985724 A CN 110985724A
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- CN
- China
- Prior art keywords
- pressure maintaining
- movable member
- cavity
- valve
- pressurize
- 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
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 14
- 241001330002 Bambuseae Species 0.000 claims description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 14
- 239000011425 bamboo Substances 0.000 claims description 14
- 238000013022 venting Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
- G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve
Abstract
The invention discloses an GVV valve pressure maintaining structure, which comprises a pressure maintaining cylinder which is vertically arranged, wherein a cavity is arranged in the pressure maintaining cylinder, the bottom of the pressure maintaining cylinder is provided with an air inlet communicated with the cavity, the side part of the pressure maintaining cylinder is provided with an air outlet communicated with the cavity, the edge of the top of the air inlet extends upwards to form a boss, the boss is provided with an air vent notch, the inner wall of the pressure maintaining cylinder is provided with at least one air vent groove, a movable part which can move up and down is arranged in the cavity and used for controlling the air flow between the air inlet and the air outlet, the pressure maintaining structure can realize high-precision pressure control, the pressure maintaining structure is laterally arranged by a GVV valve, the height of a valve body is.
Description
Technical Field
The invention relates to an oil filling control valve, in particular to an exhaust valve of an oil tank.
Background
The top at the oil tank assembly is installed to the oil tank discharge valve, and in traditional oil tank discharge valve technique, when the vehicle normally traveled, discharge valve opened all the time in order to discharge fuel steam, but, when the vehicle took place to empty or the rollover, discharge valve self-closing. Exhaust valve in the six state technique: under normal conditions, fuel vapor is allowed to flow from the fuel tank to the carbon tank, so that excessive positive pressure is prevented from being generated in the fuel tank; during operation and refueling, if the pressure in the fuel tank is high enough, the head valve opens to allow more fuel vapor to flow from the fuel tank to the canister; when the carbon tank is desorbed, fresh air is allowed to be supplemented into the oil tank through the carbon tank, so that excessive negative pressure is prevented from being generated in the oil tank; in special case, when the vehicle is turned over or inclined at a large angle, the exhaust valve is closed to prevent fuel leakage. The prior art discloses a high leakproofness oil tank rollover valve, and its publication number is: CN208859010U, it is a disadvantage that its pressure maintaining assembly is arranged on top of the valve body, thus increasing the height of the whole structure, and thus creating a limitation to the installation space environment.
Disclosure of Invention
The invention aims to provide an GVV valve pressure maintaining structure and a GVV valve, so that pressure maintaining control is more reliable and sensitive, the height of the valve is reduced, and space is saved.
The purpose of the invention is realized as follows: the utility model provides an GVV valve pressurize structure, includes the pressurize section of thick bamboo of vertical setting, and the inside cavity that is equipped with of pressurize section of thick bamboo, the air inlet of intercommunication cavity is seted up to the bottom of pressurize section of thick bamboo, and the gas vent of intercommunication cavity is seted up to the lateral part of pressurize section of thick bamboo, the air inlet top edge upwards extends and forms the boss, has seted up ventilative breach on the boss, has seted up at least one ventilative groove on the inner wall of pressurize section of thick bamboo, be provided with the moving part that can reciprocate in the cavity, the moving part is used for controlling the air flow between air.
As a further limitation of the present invention, the movable member is a cylindrical structure, and the cylindrical movable member realizes the flow rate control of the air flow between the air inlet and the air outlet by the self-weight.
As a further limitation of the invention, the movable member is of a disc-shaped structure, a spring is arranged between the movable member and the top wall of the cavity, the movable member is abutted against the boss through the spring, and the disc-shaped movable member realizes the flow control of the air flow between the air inlet and the air outlet through the elastic force of the spring.
As a further limitation of the invention, two annular bosses are formed upwards at the top of the movable part, a groove is formed between the annular bosses, and one end of the spring is sleeved in the groove.
The utility model provides a novel side exhaust formula GVV valve, includes the float of setting in the valve body, the inlet port has been seted up at the top of valve body, the valve body top extends to the lateral part and forms the side blast pipe, and the side blast pipe communicates through the inlet port with the valve body is inside, side blast pipe end connection has the exhaust interface, is provided with the pressurize structure as in claim 1 in the side blast pipe, the pressurize structure is used for controlling the air flow between side blast pipe and the side exhaust interface, the exhaust interface intercommunication the gas vent of pressurize structure.
As a further limitation of the present invention, the pressure maintaining structure and the exhaust structure are an integrally molded structure that closes the side exhaust pipe.
When the pressure continuously rises until the moving part is jacked up to exceed the height of the exhaust port, a cavity below the moving part with the air inlet and the air outlet forms a large-flow ventilation channel. Compared with the prior art, the invention has the beneficial effects that: the pressure maintaining structure can realize high-precision control of pressure, and due to horizontal arrangement, a moving part is easy to open under the non-pressure action after a vehicle bumps, so that the control precision of the moving part is influenced; the GVV valve of the invention puts the pressurize structure side, reduces the valve body height, saves the space, simultaneously, the vertically arranged pressurize structure cooperates the side to install, can realize the function of oil-gas separation.
Drawings
Fig. 1 is a perspective view of embodiment 1 of the present invention.
FIG. 2 is a sectional view of example 1 of the present invention.
Fig. 3 is a schematic structural view of the movable member according to embodiment 1 of the present invention.
Fig. 4 is a schematic view of the internal structure of the pressure holding cylinder in example 1 of the present invention.
FIG. 5 is a sectional view of example 2 of the present invention.
FIG. 6 is a schematic view of the structure of the movable member according to embodiment 2 of the present invention.
Fig. 7 is a schematic view of the internal structure of the pressure holding cylinder in example 2 of the present invention.
FIG. 8 is a sectional view of example 3 of the present invention.
FIG. 9 is a sectional view of example 4 of the present invention.
Fig. 10 is a first working state diagram of embodiment 4 of the present invention.
FIG. 11 is a second diagram illustrating the operation of embodiment 4 of the present invention.
FIG. 12 is a third diagram illustrating the operation state of embodiment 4 of the present invention.
The pressure maintaining valve comprises a valve body 1, a gas inlet hole 1a, a floater 2, a pressure maintaining structure 3, a gas inlet 301, a gas outlet 302, a boss 303, a gas permeable notch 303a, a movable piece 304 in a disc shape, annular bosses 304a and 304b, a groove 304c, a spring 305, a cylindrical movable piece 306, a gas permeable groove 307, a pressure maintaining cylinder 308 and a gas outlet pipe 4.
Detailed Description
Example 1
1-4, an GVV valve pressure maintaining structure includes a vertically disposed pressure maintaining cylinder 308, a cavity is disposed inside the pressure maintaining cylinder 308, an air inlet 301 communicating with the cavity is disposed at the bottom of the pressure maintaining cylinder 308, an air outlet 302 communicating with the cavity is disposed at the side of the pressure maintaining cylinder 308, the top edge of the air inlet 301 extends upward to form a boss 303, a ventilation notch 303a is disposed on the boss 303, at least one ventilation groove 307 is disposed on the inner wall of the pressure maintaining cylinder 308, a movable member 304 capable of moving up and down is disposed in the cavity, the movable member 304 is used for controlling the flow rate of air between the air inlet 301 and the air outlet 302, the movable member 304 is a disc-shaped structure, a spring 305 is disposed between the movable member 304 and the top wall of the cavity, the movable member 304 abuts against the boss 303 via the spring 305, the disc-shaped movable member 304 realizes, two annular bosses 304a, 304b303 are formed upward at the top of the movable member 304, a groove 304c is formed between the annular bosses 304a, 304b303, and one end of the spring 305 is sleeved in the groove 304 c.
Example 2
As shown in fig. 5-7, an GVV valve pressure maintaining structure includes a vertically disposed pressure maintaining cylinder 308, a cavity is disposed inside the pressure maintaining cylinder 308, an air inlet 301 communicating with the cavity is disposed at the bottom of the pressure maintaining cylinder 308, an air outlet 302 communicating with the cavity is disposed at the side of the pressure maintaining cylinder 308, a top edge of the air inlet 301 extends upward to form a boss 303, a ventilation notch 303a is disposed on the boss 303, at least one ventilation groove 307 is disposed on an inner wall of the pressure maintaining cylinder 308, a movable member 306 capable of moving up and down is disposed in the cavity, the movable member 306 is used for controlling an airflow rate between the air inlet 301 and the air outlet 302, the movable member 306 is a cylindrical structure, and the cylindrical movable member 306 realizes an airflow rate control between the.
Example 3
As shown in fig. 8, the novel side exhaust type GVV valve comprises a float 2 arranged in a valve body 1, wherein the top of the valve body 1 is provided with an air inlet 1a, the top of the valve body 1 extends to the side to form a side exhaust pipe 4, the side exhaust pipe 4 is communicated with the inside of the valve body 1 through the air inlet 1a, the end of the side exhaust pipe 4 is connected with an exhaust interface, and a pressure maintaining structure 3 is arranged in the side exhaust pipe 4; pressure maintaining structure 3 includes a pressure maintaining section of thick bamboo 308 of vertical setting, the inside cavity that is equipped with of pressure maintaining section of thick bamboo 308, the air inlet 301 of intercommunication cavity is seted up to the bottom of a pressure maintaining section of thick bamboo 308, the gas vent 302 of intercommunication cavity is seted up to the lateral part of a pressure maintaining section of thick bamboo 308, air inlet 301 top edge upwards extends and forms boss 303, ventilative breach 303a has been seted up on the boss 303, at least one ventilative groove 307 has been seted up on the inner wall of a pressure maintaining section of thick bamboo 308, be provided with movable part 304 that can reciprocate in the cavity, movable part 304 is used for controlling the air flow between air inlet 301 and the gas vent 302, movable part 304 is cylindrical structure, cylindrical movable part 304 realizes the air flow control between air inlet 301 and the gas vent 302 through the dead weight.
Example 4
As shown in fig. 9, it differs from example 3 only in that the pressure holding structure of example 2 is employed.
The working state of example 4 is taken as an example below:
as shown in fig. 10-12, when the pressure in the oil tank is low in the initial state, when the movable element 306 abuts against the boss 303, the air inlet 301= > the air vent notch 303a = > the air vent groove 307= > the air vent 302 forms a small flow air vent channel, when the pressure in the oil tank increases, the movable element 306 is jacked up and does not exceed the air vent 302, the air inlet 301= > the air vent groove 307= > the air vent 302 forms a medium flow air vent channel, and when the pressure in the oil tank continuously increases until the movable element 306 is jacked up and exceeds the height of the air vent 302, the air inlet 301= > a cavity below the movable element 306 = > the air vent 302 forms a. The pressure maintaining structure 3 can realize three-section (small, medium and large) pressure high-precision control, and the pressure maintaining structure 3 is vertically arranged, if the structure is horizontally arranged, a moving part 306 is easy to open under the non-pressure action after the vehicle bumps, so that the control precision of the moving part is influenced, compared with the horizontal arrangement, when the vehicle runs on a bumpy road section, the moving part 306 is not easy to open under the non-pressure state due to bumping, so that the control precision of the moving part is improved by the vertical arrangement compared with the horizontal arrangement, meanwhile, the structure can realize three-section (small, medium and large) flow control, and the horizontally arranged pressure maintaining structure 3 cannot realize the function; the GVV valve of the invention puts the pressure maintaining structure 3 on the side, reduces the height of the valve body 1, saves space, and meanwhile, the vertically arranged pressure maintaining structure 3 is installed in cooperation with the side, which can realize the function of oil-gas separation, namely when the oil-gas in the valve body 1 enters the side exhaust pipe 4 from the exhaust port 302, the liquid oil flows down along the outer wall after contacting the outer wall of the pressure maintaining structure 3, and is stored at the bottom of the side exhaust pipe 4, and the gas is exhausted from the air inlet 301, thereby reducing the dynamic leakage of the oil tank system. During the running process of the vehicle, oil gas in the fuel tank is discharged to the carbon tank through the pipeline, filtered and then discharged to the atmosphere; dynamic leakage is how much fuel is discharged from the vent passage to the canister during fuel sloshing, and if too much, it will cause the canister to over-saturate and fail.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (6)
1. The utility model provides an GVV valve pressurize structure, its characterized in that, is equipped with the cavity including the pressurize section of thick bamboo of vertical setting, and the air inlet of intercommunication cavity is seted up to the bottom of pressurize section of thick bamboo, and the gas vent of intercommunication cavity is seted up to the lateral part of pressurize section of thick bamboo, air inlet top edge upwards extends and forms the boss, has seted up ventilative breach on the boss, has seted up at least one ventilative groove on the inner wall of pressurize section of thick bamboo, be provided with the moving part that can reciprocate in the cavity, the moving part is used for controlling the air flow between air inlet and the gas vent.
2. An GVV valve pressure maintaining structure, according to claim 1, wherein the movable member is a cylindrical structure, and the cylindrical movable member realizes flow rate control between the air inlet and the air outlet by its own weight.
3. An GVV valve pressure maintaining structure, according to claim 1, wherein the movable member is a disk-shaped structure, a spring is disposed between the movable member and the top wall of the cavity, the movable member is abutted against the boss through the spring, and the disk-shaped movable member realizes the flow control of the air flow between the air inlet and the air outlet by the elastic force of the spring.
4. An GVV valve pressure maintaining structure, according to claim 3, wherein the top of the movable member is formed with two annular bosses, a groove is formed between the two annular bosses, and one end of the spring is sleeved in the groove.
5. The utility model provides a novel side exhaust formula GVV valve, includes the float of setting in the valve body, the inlet port has been seted up at the top of valve body, its characterized in that, the valve body top extends to the lateral part and forms the side blast pipe, and the side blast pipe communicates through the inlet port with the valve body is inside, side blast pipe end connection has the exhaust interface, is provided with the pressurize structure as in claim 1 in the side blast pipe, the pressurize structure is used for controlling the air flow between side blast pipe and the side exhaust interface, the exhaust interface intercommunication the gas vent of pressurize structure.
6. The novel side vent GVV valve of claim 5, wherein the pressure maintaining structure and the venting structure are integrally formed, and the integrally formed structure closes the side vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911250207.3A CN110985724A (en) | 2019-12-09 | 2019-12-09 | GVV valve pressure maintaining structure and GVV valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911250207.3A CN110985724A (en) | 2019-12-09 | 2019-12-09 | GVV valve pressure maintaining structure and GVV valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110985724A true CN110985724A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911250207.3A Pending CN110985724A (en) | 2019-12-09 | 2019-12-09 | GVV valve pressure maintaining structure and GVV valve |
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| Country | Link |
|---|---|
| CN (1) | CN110985724A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958746A (en) * | 2021-09-18 | 2022-01-21 | 戴胜汽车科技（苏州）有限公司 | Large-flow rollover valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130160869A1 (en) * | 2011-12-22 | 2013-06-27 | Eaton Corporation | Fuel tank vent valve assembly and method of assembly |
| CN106812984A (en) * | 2017-02-23 | 2017-06-09 | 慈溪市华龙电子有限公司 | One kind ventilation stop valve |
| CN209469838U (en) * | 2018-12-10 | 2019-10-08 | 孙达立 | A kind of overflow cutting valve |
| CN211371395U (en) * | 2019-12-09 | 2020-08-28 | 江苏奥力威传感高科股份有限公司 | GVV valve pressure maintaining structure |
| CN211371394U (en) * | 2019-12-09 | 2020-08-28 | 江苏奥力威传感高科股份有限公司 | Novel side exhaust type GVV valve |
-
2019
- 2019-12-09 CN CN201911250207.3A patent/CN110985724A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130160869A1 (en) * | 2011-12-22 | 2013-06-27 | Eaton Corporation | Fuel tank vent valve assembly and method of assembly |
| CN106812984A (en) * | 2017-02-23 | 2017-06-09 | 慈溪市华龙电子有限公司 | One kind ventilation stop valve |
| CN209469838U (en) * | 2018-12-10 | 2019-10-08 | 孙达立 | A kind of overflow cutting valve |
| CN211371395U (en) * | 2019-12-09 | 2020-08-28 | 江苏奥力威传感高科股份有限公司 | GVV valve pressure maintaining structure |
| CN211371394U (en) * | 2019-12-09 | 2020-08-28 | 江苏奥力威传感高科股份有限公司 | Novel side exhaust type GVV valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958746A (en) * | 2021-09-18 | 2022-01-21 | 戴胜汽车科技（苏州）有限公司 | Large-flow rollover valve |
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