CN217462374U - Liquid accumulator and valve for fuel tank - Google Patents
Liquid accumulator and valve for fuel tank Download PDFInfo
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- CN217462374U CN217462374U CN202123346665.2U CN202123346665U CN217462374U CN 217462374 U CN217462374 U CN 217462374U CN 202123346665 U CN202123346665 U CN 202123346665U CN 217462374 U CN217462374 U CN 217462374U
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Abstract
The utility model discloses a fuel tank liquid accumulator and a valve, which is characterized in that the existing connecting flange is replaced by arranging a liquid accumulator body on an external valve body; this internal hydrops ware that is equipped with hydrops chamber and the gas passage who communicates with external pipeline, and the exhaust passage intercommunication of hydrops chamber and outside valve body to further set up separation unit in the hydrops chamber and form liquid separation passageway, communicate with hydrops chamber and gas passage respectively by the both ends of liquid separation passageway. When the fuel tank shakes to a large extent, a certain amount of fuel can leak from the exhaust channel of the external valve body, and the fuel enters the liquid accumulation cavity and is left in the liquid accumulation cavity under the action of the liquid blocking flow channel; when the fuel tank stops shaking, fuel in the liquid accumulation cavity can flow back to the fuel tank through the exhaust channel. The flange on replacing the original external valve body with the liquid accumulation device body can realize the outflow of the separated oil liquid, so that the whole volume of the valve is not changed greatly, and the problems that the cost of the existing external liquid accumulation device is increased and the arrangement is difficult are solved.
Description
Technical Field
The utility model belongs to the technical field of fuel oil system, especially, relate to a liquid trap of fuel tank and valve.
Background
The release of the national six standard means that the evaporative emission requirement of the whole fuel system is more and more strict, the requirement on the dynamic leakage (generally comprising a horizontal shaking test, an angle overturning shaking test, a six-axis shaking test and the like) of the fuel tank is also improved, so that the design of the valve has certain test, no matter the valves are refueling limit valves or overturning valves or combination valves, because the valves are all installed and fixed on the fuel tank, the valve core is communicated with the inside of the fuel tank, and the pipe orifice of the valve is generally connected to a carbon tank through a pipeline. When the vehicle fluctuates in the running process, fuel in the fuel tank can also surge, and if the valve core in the valve can not seal the exhaust channel in time, the fuel can turn out of the valve exhaust channel with a certain probability and flows out through the pipe orifice to form a leakage phenomenon.
Under the condition that the vehicle runs violently, the shaking amplitude of the oil tank is large, and fuel oil surges in the oil tank to impact the valve. A long period of violent driving may cause a certain amount of fuel leakage from the valve. In order to prevent fuel from entering a carbon tank to cause vehicle faults, an external liquid accumulator mode is usually adopted at present to solve the problem that the fuel enters the carbon tank, but the external liquid accumulator has the following problems, namely, the cost is increased; secondly, the external liquid accumulator is not easy to be arranged under the influence of the chassis and the vehicle body; and thirdly, the external liquid accumulator can increase the pressure drop of the oil tank channel.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a fuel tank hydrops ware and valve to solve current external hydrops ware cost-push and be difficult to the problem of arranging.
In order to solve the above problem, the technical scheme of the utility model is that:
the utility model discloses a liquid accumulator of fuel tank, include:
the liquid accumulating device comprises a liquid accumulating device body, wherein a liquid accumulating cavity and a gas channel are arranged in the liquid accumulating device body, and the output end of the gas channel is communicated with an external pipeline;
the liquid blocking unit is arranged in the liquid accumulation cavity and used for forming a liquid blocking channel through which gas can flow in the liquid accumulation cavity, and two ends of the liquid blocking channel are respectively communicated with the liquid accumulation cavity and the input end of the gas channel;
the liquid accumulator body is used for covering and hermetically connecting the external valve body, and the liquid accumulation cavity is communicated with an exhaust channel of the external valve body.
When a fuel tank of a vehicle shakes, a certain amount of fuel oil leaks from an exhaust channel of the external valve body, and the fuel oil is retained in the liquid accumulation cavity under the blocking effect of the liquid blocking flow channel; when the fuel tank stops shaking, the part of fuel reflows to the fuel tank from the liquid accumulation cavity through the exhaust channel of the outer valve body.
The utility model discloses a liquid accumulator for fuel tanks, wherein the separation unit comprises a platform and a first separation plate;
the platform is arranged in the liquid accumulation cavity, and the height of the platform is lower than that of the gas channel;
the first baffle plate is arranged on the platform and matched with the platform and the hydrops cavity to form a first separation blocking cavity communicated with the gas channel;
the first baffle plate is provided with a first opening communicated with the liquid accumulation cavity, and the height of the first opening is higher than that of the gas channel.
In the fuel tank liquid accumulator of the utility model, the separation unit also comprises a second separation plate;
the second baffle plate is arranged on the inner wall surface of the dropsy cavity, and the second baffle plate is matched with the dropsy cavity and the first baffle plate to form a second separation blocking cavity communicated with the first separation blocking cavity;
the second baffle plate is provided with a second opening communicated with the hydrops cavity, and the height of the second opening is lower than that of the first opening.
The utility model discloses a liquid accumulating device for fuel tanks, wherein a liquid accumulating device body comprises a shell with an opening and a first pipe orifice;
the opening of the shell is covered and hermetically connected with the external valve body; the inner cavity of the shell is the dropsy cavity;
the blocking unit is arranged in the liquid accumulating cavity and forms the liquid blocking channel;
the input end of the first pipe orifice is connected to the outer wall surface of the shell and is communicated with the liquid blocking channel; the output end of the first pipe orifice is communicated with an external carbon tank through a pipeline.
The utility model discloses a fuel tank liquid accumulator, the shell comprises an annular shell and a shell cover;
the shell cover is fixedly and hermetically connected to the first end of the annular shell, and the second end of the annular shell is the opening.
The utility model discloses a fuel tank hydrops ware, hydrops ware body still includes the second mouth of pipe, the orificial input of second connect in the outer wall of casing, just the orificial output of second passes through pipeline and external equipment intercommunication.
The utility model discloses a liquid ware is amassed to fuel tank, liquid intracavity equipartition has a plurality of strengthening ribs.
The fuel tank liquid accumulator of the utility model is characterized in that the liquid accumulator body is provided with at least one pair of buckle pieces facing to the outer valve body;
the liquid accumulator body is locked with the relative position relation of the external valve body through the buckle piece.
The utility model discloses a liquid accumulation device of fuel tank, liquid accumulation device body with the junction of outside valve body is equipped with the sealing member.
The utility model discloses a valve, including above-mentioned arbitrary one fuel tank hydrops ware.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
1. in one embodiment of the utility model, the liquid accumulator body is arranged on the external valve body to replace the existing connecting flange; this internal hydrops that is equipped with hydrops chamber and communicates with the gas passage of outside pipeline of this hydrops ware, and the exhaust passage intercommunication of hydrops chamber and outside valve body to further set up separation unit in the hydrops chamber and form liquid separation passageway, communicate with hydrops chamber and gas passage respectively by the both ends of liquid separation passageway. When the vehicle runs violently, the fuel tank shakes to a large extent, fuel is billowed in the fuel tank to impact the external valve body, so that a certain amount of fuel leaks from the exhaust channel of the external valve body, and the fuel enters the liquid accumulation cavity and is retained in the liquid accumulation cavity under the blocking action of the liquid blocking flow channel; because the gas can pass through the liquid blocking channel, the gas in the fuel tank can still sequentially pass through the exhaust channel, the liquid accumulation cavity, the liquid blocking channel and the gas channel of the external valve body to be exhausted to the outside, namely the performance of the external valve body cannot be influenced; when the fuel tank stops shaking, fuel in the liquid accumulation cavity can flow back to the fuel tank through the exhaust channel on the outer valve body. The liquid accumulation device body replaces a flange on an original external valve body to block oil liquid from flowing out, so that the whole volume of the valve is not changed greatly, gas in the fuel tank is not influenced to be discharged, and the performance of the valve is not influenced. Compared with the existing external liquid accumulator, the liquid accumulator has the advantages that the cost is low, the problem of how to arrange the liquid accumulator is not considered, and the problems that the cost of the existing external liquid accumulator is increased and the arrangement is difficult are solved.
2. The utility model discloses an embodiment has fluctuation in the vehicle operation, goes up sloping big angle such as downhill path and rocks. In order to prevent fuel oil from flowing out of the dropsy cavity through the gas channel when the fuel oil is shaken at a large angle, a platform and a first separation plate are arranged in the dropsy device, the first separation plate is matched with the platform and the dropsy cavity to form a first separation blocking cavity communicated with the gas channel, and a first opening which is higher than the gas channel and communicated with the dropsy cavity is formed in the first separation plate. The first baffle plate can limit the leakage of the fuel from the air flow passage within a certain angle due to the relatively high height; simultaneously this first baffler also has the effect of preventing unrestrained, prevents that the fuel in the hydrops ware from revealing when the oil tank rocks fast. This hydrops ware can adjust the hydrops ability of a certain angle through first baffler length to satisfy different fuel tank technical demands.
3. The utility model discloses an embodiment has further set up the second baffler board on the basis of first baffler board, and the second baffler board cooperates hydrops chamber and first baffler board to form one and connects the first second that hinders the chamber of separating and hinder the chamber of separating, and open on the second baffler board and have the second opening that is less than first opening and communicates the hydrops chamber to make to form the liquid separation passageway similar to "S" type, make it more difficult for fluid to flow out to gas passage through the liquid separation passageway; meanwhile, the wave-proof function can be further improved, and fuel oil in the liquid accumulation device is prevented from being leaked when the oil tank quickly shakes. This hydrops ware can adjust the hydrops ability of a certain angle through second baffler length to satisfy different fuel tank technical demands.
4. The utility model relates to an embodiment has further set up a plurality of strengthening ribs in the hydrops intracavity, and the strengthening rib specifically can be for vertical setting hydrops intracavity, and one is the intensity that can strengthen hydrops ware body, and another can play the effect of unrestrained, further prevents that the fuel in the hydrops ware from revealing to gas passage when the oil tank rocks fast.
Drawings
FIG. 1 is a schematic view of a liquid accumulator for a fuel tank according to the present invention;
FIG. 2 is a cross-sectional view of the liquid accumulator of the fuel tank of the present invention;
FIG. 3 is another cross-sectional view of the liquid accumulator of the fuel tank of the present invention;
fig. 4 is a schematic diagram illustrating an inclined state of the liquid accumulator of the fuel tank of the present invention.
Description of reference numerals: 1: an annular shell; 101: a liquid accumulation cavity; 2: a shell cover; 3: a fastener; 4: a first nozzle; 401: a gas channel; 5: a second orifice; 6: a platform; 7: a first barrier plate; 701: a first barrier compartment; 8: a second barrier panel; 801: a second barrier compartment; 9: reinforcing ribs; 10: and a seal member.
Detailed Description
The following describes a liquid accumulator and a valve for a fuel tank according to the present invention in further detail with reference to the accompanying drawings and embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
Example one
Referring to fig. 1-3, in one embodiment, a fuel tank accumulator includes: accumulator body and at least one separation unit.
This internal hydrops chamber 101 and the gas passage 401 of being equipped with of hydrops ware, the output and the outside pipeline intercommunication of gas passage 401. The blocking unit is arranged in the dropsy cavity 101 and is used for forming a liquid blocking channel which can allow gas to flow in the dropsy cavity 101, and two ends of the liquid blocking channel are respectively communicated with the dropsy cavity 101 and the input end of the gas channel 401.
The liquid accumulation device body is used for covering and being connected to the external valve body in a sealing mode, and the liquid accumulation cavity 101 is communicated with an exhaust channel of the external valve body.
In the embodiment, the existing connecting flange is replaced by arranging the liquid accumulator body on the external valve body; this internal hydrops ware that is equipped with hydrops chamber 101 and with the gas passage 401 of outside pipeline intercommunication, and the exhaust passage intercommunication of hydrops chamber 101 and outside valve body to further set up the separation unit in hydrops chamber 101 and form liquid separation passageway, communicate with hydrops chamber 101 and gas passage 401 respectively by the both ends of liquid separation passageway. When the vehicle runs violently, the fuel tank shakes to a large extent, fuel is billowed in the fuel tank to impact the external valve body, so that a certain amount of fuel leaks from the exhaust channel of the external valve body, and the fuel enters the hydrops cavity 101 and is retained in the hydrops cavity 101 under the blocking effect of the liquid blocking flow channel; because the gas can pass through the liquid blocking channel, the gas in the fuel tank can still sequentially pass through the exhaust channel of the external valve body, the hydropneumatic chamber 101, the liquid blocking channel and the gas channel 401 to be exhausted to the outside, namely the performance of the external valve body cannot be influenced; when the fuel tank stops shaking, fuel in the liquid accumulation cavity 101 can flow back to the fuel tank through the exhaust channel on the outer valve body. The liquid accumulation device body replaces a flange on an original external valve body to block oil liquid from flowing out, so that the whole volume of the valve is not changed greatly, gas in the fuel tank is not influenced to be discharged, and the performance of the valve is not influenced. Compared with the existing external liquid accumulator, the liquid accumulator has the advantages that the cost is low, the problem of how to arrange the liquid accumulator is not considered, and the problems that the cost of the existing external liquid accumulator is increased and the arrangement is difficult are solved.
Referring to fig. 2 and 3, the specific structure of the liquid accumulator for fuel tank of the present embodiment will be further described:
the mechanism of external valve body and hydrops ware body hookup location is explained briefly earlier, and in this embodiment, external valve body can include valve body and pressurize portion.
The fluid channel is a first fluid outlet and a second fluid outlet which are arranged on the valve body and used for discharging gas or liquid. The pressure holding portion is provided on the top surface of the valve body, and the input end communicates with the second fluid discharge port for defining a pressure required for discharging the fluid from the second fluid discharge port. Wherein, the output ends of the first fluid outlet and the pressure-maintaining part are both communicated with the hydrops cavity 101. Namely, the oil liquid in the fuel tank flows out to the liquid accumulation cavity 101 through the combination of the first fluid outlet or the second fluid outlet and the pressure retaining part; the oil in the liquid accumulation cavity 101 flows back to the valve body through the combination of the first fluid outlet or the second fluid outlet and the pressure maintaining part, and then flows back to the fuel tank from the valve body. Of course, in other embodiments, the pressure maintaining portion is not necessarily present, and only two discharge ports may be provided, or even only one discharge port may be provided, and is not particularly limited herein.
In particular, the external valve body may be a refuelling metering valve or a roll-over valve or a combination valve.
In this embodiment, the liquid loading device body may specifically include a housing provided with an opening and a first nozzle 4.
Wherein, the opening of casing covers and establishes and seal connection in external valve body, and the inner chamber of casing is foretell hydrops chamber 101. The blocking unit is arranged in the liquid accumulation cavity 101 and forms a liquid blocking channel.
The input end of the first pipe orifice 4 is connected to the outer wall surface of the shell and communicated with the liquid separation channel, and the output end of the first pipe orifice 4 is communicated with the external carbon tank through a pipeline. The first orifice 4 is the gas passage 401.
Further, the housing includes an annular housing 1 and a housing cover 2 for ease of manufacture and processing. The cap 2 is fixed and sealing connection in the first end of annular shell 1, and the second end of annular shell 1 is the opening, and cap 2 can be for connection methods such as welding or bonding with the connection method of annular shell 1, only need guarantee intensity and sealed can, do not do specifically limit here. The horizontal section of the annular shell 1 may be circular, square, hexagonal, or other shapes, and the annular shell 1 may also be directly formed by using an existing flange or similar design, which is not limited herein.
In this embodiment, the barrier unit may include a stage 6 and a first barrier plate 7.
The platform 6 is disposed in the accumulation chamber 101, and the height of the platform 6 is lower than the gas channel 401. The platform 6 may be an annular platform disposed in the liquid accumulation chamber 101 and lower than the gas channel 401, or may be a section of the platform 6 corresponding to the gas channel 401, which is not limited herein.
The first blocking plate 7 is disposed on the platform 6, and the first blocking plate 7 cooperates with the platform 6 and the hydropneum 101 to form a first blocking compartment 701 communicating with the gas passage 401. The first baffle plate 7 is provided with a first opening communicated with the hydrops chamber 101, and the height of the first opening is higher than that of the gas channel 401. Specifically, the first opening may be a gap reserved between the upper end of the first barrier plate 7 and the upper surface of the hydropneumatic chamber 101.
Referring to fig. 4, during the running of the vehicle, there are large-angle sways such as undulation, uphill slope and downhill slope. In order to prevent fuel oil from flowing out of the dropsy cavity 101 through the gas channel 401 when the fuel oil shakes at a large angle, the platform 6 and the first blocking plate 7 are arranged in the dropsy device, the first blocking plate 7 is matched with the platform 6 and the dropsy cavity 101 to form a first blocking separation cavity 701 communicated with the gas channel 401, and a first opening higher than the gas channel 401 and communicated with the dropsy cavity 101 is formed in the first blocking plate 7. The first baffle plate 7 can restrict the leakage of the fuel from the gas flow passage within a certain angle due to the relatively high height; simultaneously, the first blocking plate 7 also has the wave-proof function, so that fuel oil in the liquid accumulation device is prevented from being leaked when the oil tank shakes rapidly. This hydrops ware can adjust the hydrops ability of a certain angle through 7 lengths of first baffling board to satisfy different fuel tank technical demand.
In this embodiment, the blocking unit may further include a second blocking plate 8.
The second baffle plate 8 is arranged on the inner wall surface of the hydropathic chamber 101, and the second baffle plate 8 cooperates with the hydropathic chamber 101 and the first baffle plate 7 to form a second blocking chamber 801 communicated with the first blocking chamber 701.
Wherein, the second baffle plate 8 is provided with a second opening communicated with the hydrops cavity 101, and the height of the second opening is lower than that of the first opening. That is, the second opening is a passage directly connecting the dropsy cavity 101 and the second blocking and separating cavity 801, in the figure of this embodiment, the second opening is to directly set the second blocking plate 8 and the first blocking plate 7 to be vertically parallel, and the lower end of the second blocking plate 8 and the horizontal height of the platform 6 are set to be the same, and naturally, a second blocking and separating cavity 801 with an opening is formed between the two blocking plates. Of course, in other embodiments, the arrangement of the second barrier plate 8 and the second opening is various and is not limited herein.
A second baffle plate 8 is further arranged on the basis of the first baffle plate 7, the second baffle plate 8 is matched with the dropsy cavity 101 and the first baffle plate 7 to form a second baffle cavity 801 communicated with the first baffle cavity 701, and a second opening which is lower than the first opening and communicated with the dropsy cavity 101 is formed in the second baffle plate 8, so that an approximately S-shaped liquid baffle passage is formed, and oil is more difficult to flow out to the gas passage 401 through the liquid baffle passage; meanwhile, the wave-proof function can be further improved, and fuel oil in the liquid accumulation device is prevented from being leaked when the oil tank quickly shakes. This hydrops ware can adjust the hydrops ability of a certain angle through 8 lengths of second baffler to satisfy different fuel tank technical demands.
In this embodiment, the overall height of the housing can be set according to the space given by a specific vehicle model, and of course, the larger the volume of the liquid accumulation chamber 101, the better on the premise of meeting the space requirement. Meanwhile, when the volume of the liquid accumulation chamber 101 is constant, the setting heights of the gas passage 401, the stage 6, the first blocking member and the second blocking member can be adjusted.
For example, theoretically, the higher the gas passage 401, the platform 6 and the first blocking member are arranged, the larger the actual volume of the drip chamber 101 is, but the too high gas passage 401 may cause the height of the first blocking member to be reduced, thereby causing the wave-preventing effect to be reduced, and the leakage-preventing effect to be deteriorated, so that the determination needs to be made according to actual requirements.
The distance between the second blocking member and the first blocking member is also controlled, when the distance is too small, the second blocking chamber 801 is easily filled with oil, so that gas cannot be discharged, and when the distance is too large, the blocking effect cannot be achieved, and the distance needs to be determined according to actual requirements.
In this embodiment, the liquid accumulation cavity 101 may be uniformly distributed with a plurality of reinforcing ribs 9. The strengthening rib 9 specifically can be for vertical setting hydrops chamber 101 in, one can strengthen the intensity of hydrops ware body, another can play the effect of unrestrained, further prevents that the fuel in the hydrops ware from revealing to gas channel 401 when the oil tank rocks fast.
In this embodiment, in order to facilitate the connection with the external valve body, at least one pair of snaps 3 facing the external valve body may be provided on the housing. The casing can be through the relative position relation of buckle spare 3 and the locking of the trip spare on the external valve body and external valve body to realize fixing between hydrops body and the external valve body. The device connection mode is simple and efficient, and the labor cost and the production cost are low.
Further, sealing performance can not be guaranteed to the mode that foretell buckle is connected, so can be equipped with sealing member 10 in the junction of hydrops ware body and outside valve body, guarantee the sealed grade of junction through sealing member 10 for fluid can not reveal from the junction of hydrops ware body and outside valve body. Of course, in other embodiments, the liquid accumulator body and the external valve body may also be connected by welding or bonding, which is not limited herein.
In this embodiment, the liquid loading device body further comprises a second pipe orifice 5, the input end of the second pipe orifice 5 is connected to the outer wall surface of the shell, and the output end of the second pipe orifice 5 is communicated with the external valve body through a pipeline. Whether the second nozzle 5 is arranged is selected according to the vehicle type.
Example two
The present embodiment provides a liquid accumulator for a fuel tank, comprising: accumulator body and at least one separation unit.
This internal hydrops chamber 101 and the gas passage 401 of being equipped with of hydrops ware, the output and the outside pipeline intercommunication of gas passage 401. The blocking unit is arranged in the dropsy cavity 101 and is used for forming a liquid blocking channel through which gas can flow in the dropsy cavity 101, and two ends of the liquid blocking channel are respectively communicated with the dropsy cavity 101 and the input end of the gas channel 401.
The liquid accumulation device body is used for covering and being connected to the external valve body in a sealing mode, and the liquid accumulation cavity 101 is communicated with an exhaust channel of the external valve body.
Example two
This embodiment provides a valve that can be used with the fuel tank accumulator of the first embodiment. The existing connecting flange is replaced by arranging a liquid accumulator body on the valve; this internal hydrops ware that is equipped with hydrops chamber 101 and with the gas passage 401 of outside pipeline intercommunication, and the exhaust passage intercommunication of hydrops chamber 101 and valve to further set up the separation unit in hydrops chamber 101 and form liquid separation passageway, communicate with hydrops chamber 101 and gas passage 401 respectively by the both ends of liquid separation passageway. When the vehicle runs violently, the fuel tank shakes to a large extent, fuel overturns in the fuel tank to impact the valve, so that a certain amount of fuel leaks from a vent passage of the valve, and the fuel enters the hydropneumatic chamber 101 and is retained in the hydropneumatic chamber 101 under the blocking action of the liquid blocking flow passage; because the gas can pass through the liquid blocking channel, the gas in the fuel tank can still sequentially pass through the exhaust channel of the valve, the hydropneumatic chamber 101, the liquid blocking channel and the gas channel 401 to be exhausted to the outside, namely the performance of the valve cannot be influenced; when the fuel tank stops shaking, the fuel in the liquid accumulation cavity 101 can flow back to the fuel tank through the exhaust channel on the valve. Can realize the separation fluid through the flange on replacing original valve with hydrops ware body and flow for the whole volume of valve changes little, can not influence the gas outgoing in the fuel tank simultaneously, does not influence the performance of valve. Compared with the existing external liquid accumulator, the liquid accumulator has the advantages that the cost is low, the problem of how to arrange the liquid accumulator is not considered, and the problems that the cost of the existing external liquid accumulator is increased and the arrangement is difficult are solved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (10)
1. A fuel tank accumulator, comprising:
the liquid accumulation device comprises a liquid accumulation device body, wherein a liquid accumulation cavity and a gas channel are arranged in the liquid accumulation device body, and the output end of the gas channel is communicated with an external pipeline;
the liquid blocking unit is arranged in the liquid accumulation cavity and used for forming a liquid blocking channel through which gas can flow in the liquid accumulation cavity, and two ends of the liquid blocking channel are respectively communicated with the liquid accumulation cavity and the input end of the gas channel;
the liquid accumulation device body is used for covering and hermetically connecting the external valve body, and the liquid accumulation cavity is communicated with an exhaust channel of the external valve body;
when a fuel tank of a vehicle shakes, a certain amount of fuel oil leaks from an exhaust passage of the external valve body, and the fuel oil is retained in the liquid accumulation cavity under the blocking effect of the liquid blocking passage; when the fuel tank stops shaking, the part of fuel flows back to the fuel tank from the liquid accumulation cavity through the exhaust channel of the outer valve body.
2. The fuel accumulator according to claim 1, wherein the barrier unit comprises a platform and a first barrier plate;
the platform is arranged in the liquid accumulation cavity, and the height of the platform is lower than that of the gas channel;
the first baffle plate is arranged on the platform and matched with the platform and the hydrops cavity to form a first separation blocking cavity communicated with the gas channel;
the first baffle plate is provided with a first opening communicated with the liquid accumulation cavity, and the height of the first opening is higher than that of the gas channel.
3. The fuel tank accumulator of claim 2, wherein the barrier unit further comprises a second barrier plate;
the second baffle plate is arranged on the inner wall surface of the dropsy cavity, and the second baffle plate is matched with the dropsy cavity and the first baffle plate to form a second separation blocking cavity communicated with the first separation blocking cavity;
the second baffle plate is provided with a second opening communicated with the dropsy cavity, and the height of the second opening is lower than that of the first opening.
4. The fuel tank accumulator of claim 1 wherein the accumulator body includes a housing having an opening and a first nozzle;
the opening of the shell is covered and hermetically connected with the external valve body; the inner cavity of the shell is the dropsy cavity;
the blocking unit is arranged in the effusion cavity and forms the liquid blocking channel;
the input end of the first pipe orifice is connected to the outer wall surface of the shell and is communicated with the liquid blocking channel; the output end of the first pipe orifice is communicated with an external carbon tank through a pipeline.
5. The fuel tank accumulator of claim 4 wherein the housing comprises an annular shell and a cover;
the shell cover is fixedly and hermetically connected to the first end of the annular shell, and the second end of the annular shell is the opening.
6. The fuel tank accumulator according to claim 4, wherein the accumulator body further comprises a second nozzle, an input end of the second nozzle is connected to an outer wall surface of the housing, and an output end of the second nozzle is communicated with an external device through a pipeline.
7. The fuel tank liquid accumulator according to claim 1, wherein a plurality of reinforcing ribs are uniformly distributed in the liquid accumulation cavity.
8. The fuel tank accumulator according to claim 1, wherein the accumulator body is provided with at least one pair of fasteners facing the outer valve body;
the liquid accumulator body is locked with the relative position relation of the external valve body through the buckle piece.
9. The fuel tank accumulator according to claim 1, wherein a seal is provided at the junction of the accumulator body and the external valve body.
10. A valve comprising a fuel tank accumulator according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123346665.2U CN217462374U (en) | 2021-12-28 | 2021-12-28 | Liquid accumulator and valve for fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123346665.2U CN217462374U (en) | 2021-12-28 | 2021-12-28 | Liquid accumulator and valve for fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217462374U true CN217462374U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123346665.2U Active CN217462374U (en) | 2021-12-28 | 2021-12-28 | Liquid accumulator and valve for fuel tank |
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|---|---|
| CN (1) | CN217462374U (en) |
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2021
- 2021-12-28 CN CN202123346665.2U patent/CN217462374U/en active Active
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