CN110594459A - Integrated oil tank isolating valve - Google Patents
Integrated oil tank isolating valve Download PDFInfo
- Publication number
- CN110594459A CN110594459A CN201910978200.7A CN201910978200A CN110594459A CN 110594459 A CN110594459 A CN 110594459A CN 201910978200 A CN201910978200 A CN 201910978200A CN 110594459 A CN110594459 A CN 110594459A
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- hole
- valve assembly
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- 238000007789 sealing Methods 0.000 claims abstract description 51
- 238000005192 partition Methods 0.000 claims abstract description 25
- 239000013589 supplement Substances 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000002955 isolation Methods 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000002828 fuel tank Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 29
- 230000001502 supplementing effect Effects 0.000 description 11
- 239000000446 fuel Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03519—Valve arrangements in the vent line
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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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
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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
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M2025/0845—Electromagnetic valves
Abstract
The invention relates to an oil tank isolating valve which comprises a shell, a solenoid valve component, an air supplement valve component, an air release valve component and a sealing terminal. A first cavity and a second cavity are arranged in the shell, and a partition plate is arranged to separate the first cavity from the second cavity. And a first channel and a second channel respectively extend along the first cavity and the second cavity. The partition board is provided with a central through hole and a circumferential through hole. The air supply valve assembly is used for blocking the circumferential through hole, is arranged in the first cavity and is provided with an air supply cavity communicated with the first channel. The air release valve component is arranged in the second cavity and is provided with an air release cavity communicated with the second channel. The sealing terminal is arranged in the air supply cavity and can pass through the central through hole to move under the driving of the electromagnetic valve component so as to determine the partition/communication between the air supply cavity and the air release cavity. At the initial stage of the solenoid valve assembly being electrified, the sealing terminal is displaced for a small distance to remove the partition of the air escape valve assembly, so that the pressure difference between the air supplement cavity and the air escape cavity when the air supplement valve assembly is opened is reduced.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to an integrated oil tank isolating valve.
Background
In the prior art, in a gasoline vapor discharge system, gasoline vapor generated in a fuel tank is discharged to a canister through a vent valve and is effectively adsorbed by activated carbon therein. After the engine is started, fresh air is sucked into the carbon tank, and fuel steam adsorbed by activated carbon in the carbon tank is brought into the engine again for combustion, so that the fuel efficiency is improved. However, in the plug-in hybrid electric vehicle, there is a mode in which the carbon canister is driven by electric power for a long time, and in this mode, the carbon canister does not have a desorption function, and therefore, the adsorption capacity of the carbon canister is easily saturated, and thereafter, fuel vapor is directly discharged into the atmosphere, which causes environmental pollution and fuel waste. In addition, when the car is in the mode of electric drive for a long time, fuel constantly volatilizees, the accumulation leads to the oil tank internal pressure too high to cause the damage to the oil tank, need this valve to have automatic pressure release function this moment. Or the fuel oil in the oil tank is used quickly, so that the air pressure in the oil tank is too small, and the fuel oil is damaged by the extrusion of the external atmospheric pressure. The above problems have long plagued technicians.
The invention patent CN107084267A of Chinese authorization discloses a highly integrated oil tank isolation valve, wherein a cavity is arranged in a shell, a first channel is arranged on the side wall of the cavity, and an air supplement valve component and an air release valve component are coaxially and integrally arranged in the cavity; a valve core of the air supplement valve component is movably arranged in the cavity, the valve core is provided with a second channel and a third channel, the second channel and the third channel are respectively communicated with the first channel and the oil tank, a valve opening compression spring is arranged on the valve core, and a first sealing element is arranged on the valve core; a sliding block of the air release valve assembly is movably arranged on the valve core, an air release compression spring is arranged on the sliding block, and a second sealing element is arranged on the sliding block; the solenoid valve assembly is arranged in the cavity and is positioned below the air supplementing valve assembly and the air release valve assembly, the solenoid valve assembly and the air supplementing valve assembly are coaxially arranged up and down, a movable iron core of the solenoid valve assembly is movably arranged on the electromagnet, a reset compression spring is arranged on the movable iron core, and a third sealing element (shown in figure 1) is arranged on the movable iron core. However, in the actual operation process, when the solenoid valve assembly drags the air compensating valve assembly to displace along the axial direction, the negative pressure force acts on the solenoid valve assembly to cause the self load to be larger, so that the opening sensitivity of the air compensating valve assembly cannot meet the use requirement, and the use safety and the service life of the oil tank are affected. Thus, a skilled person is urgently needed to solve the above problems.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an integrated oil tank isolating valve which integrates a solenoid valve assembly, an air supplement valve assembly and an air release valve assembly and enables the air supplement valve assembly to have high opening sensitivity.
In order to solve the technical problem, the invention relates to an integrated oil tank isolating valve which comprises a shell, a solenoid valve component, an air supplement valve component, an air release valve component and a sealing terminal. A first cavity and a second cavity are arranged in the shell. The first cavity is arranged right above the second cavity and is separated by means of a partition plate. A first channel extends outwards along the left of the first cavity to communicate with the inner cavity of the oil tank. A second channel extends outwards along the right direction of the second cavity so as to realize communication with the inner cavity of the carbon tank. The partition plate is provided with a central through hole and a circumferential through hole arranged on the periphery of the central through hole. The air supply valve component is arranged in the first cavity and is internally provided with an air supply cavity which is always communicated with the first channel. The air supplement valve assembly is elastically pressed against the upper surface of the partition plate to block a vent path flowing through the circumferential through hole. The air release valve component is arranged in the second cavity, always elastically leans against the lower surface of the partition plate, and is internally provided with an air release cavity which is always communicated with the second channel. The sealing terminal is arranged in the air supply cavity and can pass through the central through hole, and the sealing terminal is driven by the electromagnetic valve component to move along the axial direction of the sealing terminal so as to control the switching of the partition/communication state of the air supply cavity and the air leakage cavity.
As a further improvement of the technical solution of the present invention, the air compensating valve assembly includes a first elastic member, an air compensating valve body, and an air compensating valve seat. The first elastic piece is abutted between the air compensating valve seat and the air compensating valve body, so that the air compensating valve body is always elastically pressed against the upper surface of the partition plate to block a ventilation path flowing through the circumferential through hole. The air supply cavity is opened in the air supply valve body.
As a further improvement of the technical solution of the present invention, the air compensation valve assembly further includes a first sealing member fixed on the bottom wall of the air compensation valve body.
As a further improvement of the technical scheme of the invention, an obliquely downward extending lug-shaped first sealing bulge is arranged around the inner edge and the outer edge of the first sealing element.
As a further improvement of the technical scheme of the invention, the air compensation valve seat is detachably sleeved and fixed in the first cavity, and a first sealing rubber ring is sleeved around the periphery of the air compensation valve seat.
As a further improvement of the technical solution of the present invention, the air release valve assembly includes a second elastic member, an air release valve body and an air release valve seat. The second elastic piece is abutted between the air release valve seat and the air release valve body, so that the air release valve body is always elastically pressed against the lower surface of the partition plate, and the ventilation path flowing through the central through hole is blocked. The air escape cavity is opened in the air escape valve body.
As a further improvement of the technical solution of the present invention, the above-mentioned relief valve assembly further comprises a second sealing member fixed to the top wall of the relief valve body.
As a further improvement of the technical scheme of the invention, a second sealing bulge which is in a shape of a lug and extends obliquely upwards is arranged around the inner edge and the outer edge of the second sealing element.
As a further improvement of the technical scheme of the invention, the air release valve seat is detachably sleeved and fixed in the second cavity, and a second sealing rubber ring is sleeved around the periphery of the air release valve seat.
As a further improvement of the technical scheme of the invention, the diameter of the central through hole is controlled to be 4-5 mm.
Compared with the oil tank isolating valve with the traditional design structure, in the technical scheme disclosed by the invention, the central through hole for the sealing terminal to pass through is formed right below the electromagnetic valve assembly. At the solenoid valve subassembly initial stage that gets electricity, sealing terminal carries out the short distance displacement under the effect of solenoid valve subassembly pulling force in order to relieve the wall to disappointing the valve unit, thereby make tonifying qi cavity and disappointing the cavity and be in the communication state, thereby reduced tonifying qi cavity and the pressure differential between the cavity of disappointing, reduced the required solenoid valve unit output value of promotion gulp valve unit promptly to a certain extent, and then improved the sensitivity that gulp valve unit opened, ensure the security that the oil tank used.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a middle integrated type oil tank isolating valve in the prior art.
Fig. 2 is a perspective view of an integrated tank isolation valve according to the present invention.
Fig. 3 is a schematic structural view (normal state) of the integrated tank isolation valve of the present invention.
Fig. 4 is an enlarged view of part I of fig. 3.
Fig. 5 is a schematic structural diagram of the integrated tank isolation valve of the present invention (tank relief condition when the solenoid valve assembly is de-energized).
Fig. 6 is a schematic structural diagram of the integrated tank isolation valve (tank pressure compensation state when the solenoid valve assembly is powered off) in the invention.
FIG. 7 is a schematic diagram of the pilot state of the integrated tank isolation valve of the present invention (when the solenoid valve assembly is energized)
FIG. 8 is a schematic diagram of the integrated tank isolation valve in a normally open state (when the solenoid valve assembly is energized)
Fig. 9 is a perspective view of an air supplement valve body in the integrated tank isolation valve of the present invention.
Fig. 10 is a perspective view of a vent valve body of the integrated tank isolation valve of the present invention.
Fig. 11 is a perspective view of a seal terminal in the integrated tank isolation valve of the present invention.
1-a shell; 11-a first cavity; 12-a second cavity; 13-a separator; 131-a central through hole; 132-a circumferential through hole; 14-a first channel; 15-a second channel; 2-a solenoid valve assembly; 3-a gas supplementing valve component; 31-air supplement cavity; 32-a first elastic member; 33-a gas supply valve body; 34-a gas supplementing valve seat; 35-a first seal; 351-a first sealing projection; 36-a first sealing rubber ring; 4-a bleed valve assembly; 41-air escape cavity; 42-a second elastic member; 43-relief valve body; 44-relief valve seat; 45-a second seal; 451-second sealing projection; 46-a second sealing rubber ring; 5-sealing the terminals.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The present invention will be described in further detail with reference to the following embodiments, and fig. 2 and fig. 3 respectively show a perspective view and a cross-sectional view of the integrated fuel tank isolation valve of the present invention, and it can be understood that the integrated fuel tank isolation valve mainly comprises a housing 1, a solenoid valve assembly 2, an air compensating valve assembly 3, an air release valve assembly 4, and a sealing terminal 5 (as shown in fig. 11). A first cavity 11 and a second cavity 12 are provided in the housing 1. The first chamber 11 is arranged directly above the second chamber 12 and is separated by means of a partition 13. A first channel 14 extends towards the left outside of the first chamber 11 to communicate with the internal chamber of the tank. A second channel 15 extends outwards to the right along the second cavity 12 to communicate with the inner cavity of the carbon tank. A central through hole 131 and a plurality of circumferential through holes 132 evenly distributed circumferentially around the periphery of the central through hole 131 are opened in the partition plate 13. The air compensating valve assembly 3 is disposed in the first chamber 11, and an air compensating cavity 31 is disposed therein and is always communicated with the first passage 14. The gulp valve assembly 3 is resiliently biased against the upper surface of the diaphragm 13 to block the vent path through the circumferential through-hole 132. The air release valve assembly 4 is disposed in the second chamber 12, always elastically abuts against the lower surface of the partition 13, and is provided therein with an air release cavity 41 always communicating with the second passage 15. The sealing terminal 5 is disposed in the gas supplementing cavity 31 and can pass through the central through hole 131, and move along its own axial direction under the driving of the solenoid valve assembly 2 to control the switching of the blocking/communication state between the gas supplementing cavity 31 and the gas releasing cavity 41. Therefore, the air compensating valve assembly 3, the air leakage valve assembly 4 and the electromagnetic valve assembly 2 are coaxially and integrally arranged in the shell 1, so that the effective isolation valve is simple in structure, compact in overall layout and convenient to manufacture.
The action principle of the integrated oil tank isolating valve is as follows: when the automobile is in a long-term electric drive mode, fuel continuously volatilizes and accumulates to cause the pressure in the oil tank to be overhigh, at the moment, the electromagnetic valve component 2 is in a power-off state, pressure oil steam flows through the air supplementing cavity 31 and the central through hole 131, and then the air leakage valve component 4 is opened by jacking (as shown in figure 5), so that communication with the carbon tank is realized, the phenomenon of overlarge pressure in the oil tank is avoided, and the use safety is ensured. However, when the too fast condensation condition of oil vapor emergence in the oil tank, very easily lead to negative pressure increase in the oil tank to make the oil tank be pressed and become flat, through adopting above-mentioned technical scheme, air and oil vapor can flow through circumference through-hole 132 through the carbon tank, aeration valve subassembly 3 is opened by the top afterwards (as shown in fig. 6), thereby to the backward flow of oil tank, so, on the one hand, can carry out the tonifying qi to the oil tank effectively, stop the inside too big phenomenon of negative pressure that appears of oil tank, ensure the security of using. On the other hand, the utilization rate of fuel can be effectively improved. When the automobile is in a long-term fuel driving mode, at the initial stage of electrifying the electromagnetic valve component 2, the sealing terminal 5 displaces for a small distance under the action of the pulling force of the electromagnetic valve component 2 to remove the partition of the air release valve component 4, so that the air supplement cavity 31 and the air release cavity 41 are in a communication state, to form a pilot air passage, as shown in fig. 7, thereby reducing the pressure difference between the supplementary air cavity 31 and the air escape cavity 41, namely, the output force value of the solenoid valve assembly 2 required for lifting the gulp valve assembly 3 is reduced to a certain extent, and then the opening sensitivity of the gulp valve assembly 3 is improved, the use safety of the oil tank is ensured, and then the sealing terminal 5 is driven by the electromagnetic valve assembly 2 to perform displacement movement again to keep the gulp valve assembly 3 separated from the partition plate 13, so that the opening of a conducting air passage between the oil tank and the carbon tank is realized (as shown in fig. 8).
As a further refinement of the structure of the gulp valve assembly, it is recommended to make the arrangement with reference to the following scheme: the gulp valve assembly 3 includes a first resilient member 32, a gulp valve body 33 (shown in fig. 9), and a gulp valve seat 34. The first elastic member 32 abuts between the gulp valve seat 34 and the gulp valve body 33, so that the gulp valve body 33 is always elastically pressed against the upper surface of the partition plate 13 to block the ventilation path through the circumferential through hole 132. The air supply cavity 31 is opened in the air supply valve body 33 (as shown in fig. 4). Therefore, the structure of the gulp valve assembly 3 is as simple as possible on the premise of meeting the basic functional requirements, and the gulp valve assembly is convenient to manufacture, assemble and maintain at a later stage.
Furthermore, a first sealing element 35 (shown in fig. 4) may be fixed to the bottom wall of the aeration valve body 32, and the first sealing element itself has elastic deformation characteristics to reliably seal the circumferential through hole 132. Of course, as a further optimization, an obliquely downward extending ear-shaped first sealing protrusion 351 (as shown in fig. 4) may be further provided around both the inner edge and the outer edge of the first sealing member 35, so that the area of the actual sealing region is effectively reduced, the sealing function is facilitated, and the sealing reliability is improved.
Here, a method for forming the first sealing member 35 is proposed, specifically as follows: the gas supplementing valve body 33 is formed by injection molding, a riveting hole used for fixing the first sealing element 35 is reserved or formed in the gas supplementing valve body 33, after the gas supplementing valve body 33 is formed, the gas supplementing valve body is placed into the injection mold again, and the first sealing element 35 and the riveting part on the first sealing element 35 are formed in an injection molding mode.
Furthermore, in order to improve the sealing reliability between the air compensation valve assembly 3 and the first cavity 11, a first sealing rubber ring 36 (as shown in fig. 3) may be further sleeved around the periphery of the air compensation valve seat 33.
Of course, the above-mentioned air release valve assembly 4 can be arranged with reference to the following schemes: the bleed valve assembly includes a second resilient member 42, a bleed valve body 43 (shown in figure 10) and a bleed valve seat 44. The second elastic member 42 is abutted between the relief valve seat 44 and the relief valve body 43 so that the relief valve body 43 is always elastically pressed against the lower surface of the partition plate 13 to block the ventilation path through the central through hole 131. The air release cavity 41 opens into the air release valve body 43 (as shown in fig. 4).
As a further optimization, the air release valve assembly 4 may be additionally provided with a second sealing member 45 fixed to the top wall of the air release valve body 43 (as shown in fig. 4).
As a further optimization, a second sealing projection 451 (shown in fig. 4) having a shape of a lug extending obliquely upward is provided around both the inner edge and the outer edge of the second sealing member 45.
Preferably, the air release valve seat 44 is detachably fitted and fixed in the second cavity 12, and a second sealing rubber ring 46 (as shown in fig. 3) is fitted around the periphery of the air release valve seat 44.
Furthermore, in order to increase the exhaust speed and achieve rapid pressure relief, the size of the central through hole 131 needs to be controlled. Long-term test data prove that better effect can be obtained when the diameter of the central through hole 131 is controlled to be 4-5 mm.
Finally, the first elastic member 32 and the second elastic member 42 may be selected from a cylindrical spring, an elastic rubber sleeve, and the like according to actual conditions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An integrated oil tank isolating valve is characterized by comprising a shell, a solenoid valve component, an air supplement valve component, an air release valve component and a sealing terminal; a first cavity and a second cavity are arranged in the shell; the first cavity is arranged right above the second cavity and is separated by a partition plate; a first channel extends outwards along the left direction of the first cavity to realize communication with the inner cavity of the oil tank; a second channel extends outwards along the right direction of the second cavity to realize communication with the inner cavity of the carbon tank; a central through hole and a circumferential through hole arranged on the periphery of the central through hole are formed in the partition plate; the air compensating valve assembly is arranged in the first cavity and is internally provided with an air compensating cavity which is always communicated with the first channel; the air supplement valve component elastically presses against the upper surface of the partition plate to block a ventilation path flowing through the circumferential through hole; the air release valve assembly is arranged in the second cavity, always elastically abuts against the lower surface of the partition plate, and an air release cavity which is always communicated with the second channel is arranged in the air release valve assembly; the sealing terminal is arranged in the air supply cavity and can pass through the central through hole, and the electromagnetic valve assembly is driven to move along the axial direction of the electromagnetic valve assembly so as to control the air supply cavity and the air discharge cavity to be switched in a partition/communication state.
2. The integrated fuel tank isolation valve of claim 1 wherein the makeup valve assembly comprises a first resilient member, a makeup valve body, and a makeup valve seat; the first elastic piece is abutted between the air supplement valve seat and the air supplement valve body, so that the air supplement valve body is always elastically pressed against the upper surface of the partition plate to block a ventilation path flowing through the circumferential through hole; the air supply cavity is opened in the air supply valve body.
3. The integrated tank isolation valve of claim 2 wherein the makeup valve assembly further comprises a first seal secured to a bottom wall of the makeup valve body.
4. The integrated tank isolation valve as claimed in claim 3, wherein a obliquely downwardly extending ear-shaped first seal projection is provided around both the inner and outer edges of said first seal.
5. The integrated fuel tank isolation valve as claimed in claim 2, wherein the air supply valve seat is removably fitted and fixed in the first cavity, and a first sealing rubber ring is fitted around the periphery of the air supply valve seat.
6. The integrated fuel tank isolation valve of claim 1 wherein said bleed valve assembly comprises a second resilient member, a bleed valve body and a bleed valve seat; the second elastic piece is abutted between the air relief valve seat and the air relief valve body, so that the air relief valve body is always elastically pressed against the lower surface of the partition plate to block a ventilation path flowing through the central through hole; the air escape cavity is opened in the air escape valve body.
7. The integrated tank isolation valve of claim 6 wherein said bleed valve assembly further comprises a second seal secured to a top wall of said bleed valve body.
8. The integrated tank isolation valve as claimed in claim 7, wherein a second obliquely upwardly extending ear-shaped sealing protrusion is provided around both the inner and outer edges of said second seal.
9. The integrated tank isolation valve as claimed in claim 6, wherein the vent valve seat is removably fitted and fixed in the second cavity, and a second sealing rubber ring is fitted around the periphery of the vent valve seat.
10. The integrated tank isolation valve as claimed in any one of claims 1 to 9, wherein the diameter of the central through hole is controlled to be 4 to 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910978200.7A CN110594459B (en) | 2019-10-15 | 2019-10-15 | Integrated oil tank isolation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910978200.7A CN110594459B (en) | 2019-10-15 | 2019-10-15 | Integrated oil tank isolation valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110594459A true CN110594459A (en) | 2019-12-20 |
| CN110594459B CN110594459B (en) | 2024-03-22 |
Family
ID=68867358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910978200.7A Active CN110594459B (en) | 2019-10-15 | 2019-10-15 | Integrated oil tank isolation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110594459B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269369A (en) * | 2020-10-21 | 2021-01-26 | 亚普汽车部件股份有限公司 | Linear control electric control valve and electric control fuel system |
| CN113685290A (en) * | 2021-08-03 | 2021-11-23 | 东风富士汤姆森调温器有限公司 | Fuel evaporation control system based on pilot-operated type oil tank isolating valve |
| CN115929925A (en) * | 2023-02-08 | 2023-04-07 | 保定平恩康汽车技术有限公司 | Fuel isolation valve of hybrid oil tank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009198005A (en) * | 2008-02-25 | 2009-09-03 | Volvo Construction Equipment Ab | Pressure control valve |
| CN202215405U (en) * | 2011-07-14 | 2012-05-09 | 宁波方圆汽摩发展有限公司 | Rollover safety valve |
| CN205370796U (en) * | 2015-12-24 | 2016-07-06 | 江苏奥力威传感高科股份有限公司 | A isolating valve for protecting oil tank |
| CN208859010U (en) * | 2018-10-19 | 2019-05-14 | 江苏奥力威传感高科股份有限公司 | A kind of high leakproofness fuel tank Tipping valve |
| CN211203006U (en) * | 2019-10-15 | 2020-08-07 | 斯丹德汽车系统（苏州）有限公司 | Integrated oil tank isolating valve |
-
2019
- 2019-10-15 CN CN201910978200.7A patent/CN110594459B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009198005A (en) * | 2008-02-25 | 2009-09-03 | Volvo Construction Equipment Ab | Pressure control valve |
| CN202215405U (en) * | 2011-07-14 | 2012-05-09 | 宁波方圆汽摩发展有限公司 | Rollover safety valve |
| CN205370796U (en) * | 2015-12-24 | 2016-07-06 | 江苏奥力威传感高科股份有限公司 | A isolating valve for protecting oil tank |
| CN208859010U (en) * | 2018-10-19 | 2019-05-14 | 江苏奥力威传感高科股份有限公司 | A kind of high leakproofness fuel tank Tipping valve |
| CN211203006U (en) * | 2019-10-15 | 2020-08-07 | 斯丹德汽车系统（苏州）有限公司 | Integrated oil tank isolating valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269369A (en) * | 2020-10-21 | 2021-01-26 | 亚普汽车部件股份有限公司 | Linear control electric control valve and electric control fuel system |
| CN113685290A (en) * | 2021-08-03 | 2021-11-23 | 东风富士汤姆森调温器有限公司 | Fuel evaporation control system based on pilot-operated type oil tank isolating valve |
| CN113685290B (en) * | 2021-08-03 | 2023-09-12 | 东风富士汤姆森调温器有限公司 | Fuel evaporation control system based on pilot type oil tank isolation valve |
| CN115929925A (en) * | 2023-02-08 | 2023-04-07 | 保定平恩康汽车技术有限公司 | Fuel isolation valve of hybrid oil tank |
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| Publication number | Publication date |
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| CN110594459B (en) | 2024-03-22 |
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