CN106257041B - Boil-off gas controls valve gear - Google Patents
Boil-off gas controls valve gear Download PDFInfo
- Publication number
- CN106257041B CN106257041B CN201610282390.5A CN201610282390A CN106257041B CN 106257041 B CN106257041 B CN 106257041B CN 201610282390 A CN201610282390 A CN 201610282390A CN 106257041 B CN106257041 B CN 106257041B
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- Prior art keywords
- baffle
- shell
- fuel tank
- boil
- baffles
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
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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
Abstract
The present invention provides boil-off gas control valve gear that is a kind of corresponding with the internal pressure of fuel tank and improving gas-liquid separating function.Boil-off gas control valve gear has the shell (18) for being installed on fuel tank (10), it is arranged to move up and down float (20) freely in spatial portion (26), spool (22) on the top of float (20) is set, and make to be connected to and the venthole (50 by the fuel in fuel tank (10) to the interior importing of spatial portion (26) in spatial portion (26) and fuel tank (10), 38), multiple baffles (36) are configured in all shapes in a manner of surrounding venthole (38) in the bottom of shell (18), in the lower section arrangement of baffles structural body (24) of shell (18), other baffles (54) configured in all shapes that the baffle arrangement body (24) has the venthole (50) formed by the second cylinder portion (52) and surrounds venthole (50), baffle knot Structure body (24) is mounted to detachable relative to shell (18).
Description
Technical field
The present invention relates to a kind of boil-off gas being arranged on the access for being connected to fuel tank with tank to control valve gear.
Background technique
As the prior art, such as the stream for inhibiting fuel is equipped with Patent Document 1 discloses a kind of lower section in float
The boil-off gas of dynamic labyrinth structure body controls valve arrangement.In patent document 1, as labyrinth structure body, for example, disclose by
The shape of the various labyrinth structure bodies of the compositions such as zigzag detour road.
In patent document 1, it by configuring labyrinth structure body in the lower section of float, is flowed so as to reduce into float chamber
The flow velocity of the fuel entered, and fuel is made to improve gas-liquid separating function in maze-like flow, thus, it is possible to inhibit fuel to tank
Outflow.
Citation
Patent document
Patent document 1: No. 4237042 bulletins of Japanese Patent No.
Subject to be solved by the invention
However, fuel tank is corresponding with car type, engine exhaust amount etc. and has various box shapes, according to box shape, (case holds
Product) and the internal pressure of fuel tank is different.In patent document 1, multiple labyrinth structure bodies, the internal pressure with fuel tank can also be prepared
It is corresponding, but need to manufacture the different various labyrinth structure bodies of passage shape, and the management of the multiple labyrinth structure bodies produced
Cost increases.
Summary of the invention
The present invention proposes in view of above-mentioned point, its purpose is to provide it is a kind of can be corresponding with the internal pressure of fuel tank and improve
The boil-off gas of gas-liquid separating function controls valve gear.
Solution for solving the problem
In order to achieve the above purpose, the present invention is that boil-off gas controls valve gear, includes shell, is installed on combustion
Hopper；Float is arranged to move up and down freely in the spatial portion formed in the shell；Spool, setting is described floating
The top of son；Access is arranged in the downstream side of the spool, and is connected to the external of the fuel tank；And venthole,
Its bottom that shell is set, make to be connected in the spatial portion and the fuel tank and by the fuel in the fuel tank to
It is imported in the spatial portion, wherein the boil-off gas control valve gear has configuration and inhibits institute in the lower section of the float
State the baffle arrangement body of the flowing of fuel, the boil-off gas control valve gear is characterized in that, the bottom of the shell with
The mode for surrounding the venthole in all shapes should in the lower section arrangement of baffles structural body of the shell configured with multiple baffles
Other baffles configured in all shapes that baffle arrangement body has the venthole formed by cylinder and surrounds the venthole, it is described
Baffle arrangement body is mounted to detachable relative to the shell.
According to the present invention, detachable by being mounted to baffle arrangement body relative to shell, thus according to fuel tank
The height of internal pressure can arbitrarily select the fuel tank (baffle+other baffles) for being additionally provided with baffle arrangement body and not add to set
Set the fuel tank (only baffle) of baffle arrangement body.This is because the vapor volume being cleaned according to the height of the internal pressure of fuel tank
Different reasons.As a result, in the present invention, can be corresponding with the internal pressure of fuel tank and adjust the fuel flowed out to external side
Amount.
In addition, according to the present invention, boil-off gas, can be by being in that labyrinth-like configures during spatial portion circulates on the whole
Baffle and other baffles by the fuel contained in boil-off gas (liquid) separate.Thereby, it is possible to reduce via connection road direction
The amount of the fuel of outer side outflow.As a result, in the present invention, can be improved the gas-liquid separating function of boil-off gas.
In addition, it is a feature of the present invention that the baffle arrangement body has extends upward from other described baffles
Hooking sheet, the hooking sheet are locked to the baffle of the bottom of the shell.
According to the present invention, the both sides of the baffle of shell side are engaged by a pair of of hooking sheet, baffle arrangement body can be made
Assembly is easy relative to shell.As a result, in the present invention, without using other connecting elements, it will be able to by baffle arrangement
Body is more compactly connected relative to shell.
Moreover, it is a feature of the present invention that other described baffles are with from the cylinder towards radial outside and to described
The lower end side of shell tilts.
According to the present invention, by make other baffles with from cylinder towards radial outside and tilt to the lower end side of shell,
Fuel (liquid) to adhere in the lower surface of other baffles is flowed readily along inclined surface, is easy fuel (liquid) to combustion
It is returned in hopper.In addition, from the viewpoint of demoulding, can be improved production skill when manufacturing baffle arrangement body by mold
Art.
Invention effect
In the present invention, it can obtain a kind of corresponding with the internal pressure of fuel tank and improve the boil-off gas of gas-liquid separating function
Control valve gear.
Detailed description of the invention
Fig. 1 is to indicate that the boil-off gas control valve gear of embodiments of the present invention is installed on the office of the state in fuel tank
Omit cross-sectional view in portion.
Fig. 2 is the perspective view for the baffle arrangement body being arranged in boil-off gas control valve gear shown in Fig. 1.
Fig. 3 is that perspective view obtained from boil-off gas control valve gear shown in FIG. 1 is observed in side from below.
Fig. 4 is the exploded perspective view for indicating the state after removing baffle arrangement body from state shown in Fig. 3.
Fig. 5 is the shape for indicating the boil-off gas control valve gear by not additional setting baffle arrangement body and being installed in fuel tank
Omit cross-sectional view in the part of state.
Fig. 6 (a) is along the transverse sectional view of the VIA-VIA line of Fig. 1, and Fig. 6 (b) is the cross along the VIB-VIB line of Fig. 1
To cross-sectional view.
Fig. 7 is the schematic sectional view for illustrating the gas-liquid separating function of boil-off gas.
Fig. 8 is the perspective view of the baffle arrangement body of variation.
Fig. 9 is for exploded perspective view to be omitted in the part of the die device of baffle arrangement body ester moulding.
Symbol description:
10 fuel tanks
12 boil-off gas control valve gear
14 access
18 shells
20 floats
22 spools
24,24a baffle arrangement body
26 spatial portions
36 baffles
38,50 venthole
52 the second cylinder portions (cylinder)
54 baffles (other baffles)
56 hooking sheets
58 arc-shaped protrusions
Specific embodiment
Next, suitably referring to attached drawing, detailed description of embodiments of the present invention.
As shown in Figure 1, being equipped with the steaming of embodiments of the present invention on the top for the fuel tank 10 for being equipped on motor vehicle etc.
Send out gas control valve device 12 (hereinafter simply referred to as control valve gear 12).Oriented engine supply is stored in fuel tank 10
Fuel (not shown).It controls valve gear 12 and is connected to connection with the tank 16 of the exterior arrangement in fuel tank 10 via access 14.It needs
It is noted that fuel tank 10 is made of closed type trunk.
Control valve gear 12 has shell 18, float 20, spool 22, baffle arrangement body 24 etc..Hereinafter, to each component
It is described in detail.
Shell 18 is formed by resin material, including to fuel tank 10 the external upper body 18a exposed, in fuel tank 10
The middle casing for being inside set to the lower case 18b of lower side and being arranged between upper body 18a and lower case 18b
18c.Upper body 18a, lower case 18b and middle casing 18c are integrally assembled respectively and are constituted.
The access 14 for the tubulose being connected to tank 16 is formed in upper body 18a.The access 14 is located at spool 22
Downstream side, and be connected to the external of fuel tank 10.Middle casing 18c and lower case 18b are shaped generally as cylindrical shape, inside
Portion has spatial portion 26.The valve seat 28 taken a seat for spool 22 is equipped on the top of middle casing 18c.In the internal side diameter shape of valve seat 28
At there is top side opening 30, which is formed as being connected to access 14.
As shown in Fig. 1 and Fig. 4, the lower side bigger than 30 diameter of top side opening is formed in the lower end of lower case 18b
Opening 32.As described later, the lower part side opening 32 as by the assembly of baffle arrangement body 24 in shell 18 and by assembly after
Baffle arrangement body 24 is functioned out of shell 18 to the handling hole portion that outside is taken out.
It is equipped in the bottom of the internal side diameter of lower case 18b: being configured at the first cylinder portion 34 of central part；And extractor gauge
Determine angle and is circumferentially configured to shape multiple baffles 36 on the outer peripheral surface in the first cylinder portion 34.The first cylinder portion 34 is formed with
The axially venthole 38 of (up and down direction) perforation.Multiple baffles 36 in a manner of setting up by the first of internal side diameter radially
The lower case 18b of cylindrical portion 34 and outside diameter is combined.
As shown in Fig. 4 and Fig. 6 (a), each baffle 36 is made of in the case where looking up roughly the same shape, and is formed as from the first circle
34 side of canister portion gradually becomes the wide generally fan-shaped shape of width towards the side lower case 18b.In addition, the first cylinder portion 34, multiple gears
Plate 36 and lower case 18b are integrally formed by resin material.In the present embodiment, as multiple baffles 36, be equipped with along
8 baffles 36 (upside 4, the downside 4 that the mode that up and down direction does not overlap each other is interlocked up and down and circumferentially configured
Piece), but the piece number is without being limited thereto.
In multiple baffles 36, first baffle 36 that is circumferentially adjacent with the first baffle 36 of upside and configuring downside, with
First baffle 36 on the downside of this is adjacent and configures the second baffle 36 of upside, and then adjacent with the second baffle of upside 36 and configure
The second baffle 36 of downside adds up to 8 baffles 36 hereinafter, successively alternately configuring between upside and downside.In such case
Under, there is the upper layer that is made of the baffle 36 of upside and the lower layer being made of the baffle 36 of downside, by two layers of upside and downside
Structure is constituted.
Shape between each baffle 36 of adjacent upside and between each baffle 36 of downside adjacent in the circumferential in the circumferential
At the opening portion 40 for having generally fan-shaped shape (referring to Fig. 4).It is rectangular under each baffle 36 of upside when from up and down direction
At there is opening portion 40, and the top of each baffle 36 in downside is formed with opening portion 40.In addition, from up and down direction,
The storage space of storage baffle arrangement body 24 is formed between each baffle 36 of downside and the lower end of lower case 18b.
Fig. 1 is returned, is equipped in the spatial portion 26 of shell 18 (middle casing 18c) along with storing in fuel tank 10
The liquid level of fuel and move up and down float 20 freely along the axial direction of shell 18 (up and down direction).It is equipped on the top of float 20
Protrusion outstanding upward is equipped with spool 22 on the protrusion.Spool 22 is integrally moved up and down with float 20,
When mobile to the topmost of spatial portion 26, be seated at valve seat 28 and occlude top side opening 30, cutting spatial portion 26 be connected to
The connection on road 14.
It is fixed with metal rodlike weight component 42 in the inside of float 20, and in the outside diameter of weight component 42
It is equipped with the spring member 44 being made of helical spring.The circular step portion of the inside of the upper end and float 20 of the spring member 44
46 engagings, the lower end of spring member 44 engages with the stepped part 48 of lower case 18b.
Spring member 44 assists the displacement of the upward direction of float 20.That is, the elastic force of spring member 44 is usual
When without the power for pressing float 20 upward, but when fuel enters in float 20, as to acting on float 20
The buoyancy power that is assisted play a role, move up float 20 promptly.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, baffle arrangement body 24 inhibits the flowing of fuel, the baffle arrangement body 24 configuration
In the lower section of float 20, further configuration is in the lower section for the multiple baffles 36 being integrally formed with lower case 18b.Baffle arrangement body
24 have；Configuration is formed with the second cylinder portion (cylinder) 52 for the venthole 50 being made of the through hole penetrated through in central part；Point
From predetermined angular, circumferentially shape configures multiple baffles (other baffles) 54 on the outer peripheral surface in the second cylinder portion 52；From baffle
A pair of of hooking sheet 56 that 54 upper surface extends upward；And it is made of under vertical view substantially arc-shaped and dashes forward upward
A pair of of arc-shaped protrusion 58 out.
As shown in Fig. 2, a pair of of hooking sheet 56 is being equipped with two groups along radial side and the other side.In addition, a pair of of circular arc
Shape protrusion 58 is configured to, radially with a pair of of hooking sheet 56 close to configuration, and along radial side and the other side it
Between it is mutually opposed.
Extend moreover, baffle arrangement body 24 is included along with the substantially orthogonal up and down direction of multiple baffles 54, and by upside
Baffle 54 and downside baffle 54 link connection wall 60；And set up between adjacent connection wall 60 in the circumferential, and with
The opposed part side peripheral wall 62 of the inner peripheral surface of lower case 18b.
The venthole 50 of axially (up and down direction) perforation is formed in the second cylinder portion 52.The second cylinder portion 52 by
Identical diameter is constituted with the first cylinder portion 34 (referring to Fig.1), when baffle arrangement body 24 is assemblied in lower case 18b, the
One cylindrical portion 34 is with 52 arranged coaxial of the second cylinder portion and each venthole 38,50 communicates with each other.
Each baffle 54 is made of shape roughly the same in the case where looking up, and is formed as from 52 side of the second cylinder portion towards lower case
The side 18b gradually becomes the wide generally fan-shaped shape of width (referring to Fig. 6 (b)).In addition, the second cylinder portion 52, multiple baffles 54 and under
Portion shell 18b is integrally formed by resin material.It should be noted that in the present embodiment, as multiple baffles 54, be equipped with
Along 8 baffles 54 (upside 4, downside 4) that the mode that up and down direction does not overlap each other is in staggered configuration up and down, but it is not limited to
This.
It is circumferentially adjacent with the first baffle 54 of upside and match in the multiple baffles 54 configured on baffle arrangement body 24
Set downside first baffle 54, it is adjacent with the first baffle 54 on the downside of this and configure upside second baffle 54, and then with upside
Second baffle 54 it is adjacent and configure downside second baffle 54, hereinafter, matching with successively offseting one from another between upside and downside
Set total 8 baffles 54.In this case, it is constituted by the upper layer that is made of the baffle 54 of upside and by the baffle 54 of downside
Lower layer, constituted with the double-layer structure of upside and downside.
As shown in Fig. 2, between each baffle 54 of adjacent upside and downside adjacent in the circumferential in the circumferential is each
Between baffle 54, it is formed with the opening portion 64 of generally fan-shaped shape.When from up and down direction, under each baffle 54 of upside
Side is formed with opening portion 64, and the top of each baffle 54 in downside is formed with opening portion 64.
To the baffle 36 (referred to as lower case side baffle 36) being arranged in the bottom of lower case 18b and in baffle arrangement body
The configuration relation for the baffle 54 (referred to as structural body side baffle 54) being arranged on 24 is illustrated.Lower case side baffle 36 and structure
Side baffle 54 is identical on this point of adding up to the baffle of 8 (upside 4, downsides 4) to constitute by upper layer and lower layer respectively.Separately
Outside, for the configuration to circumferential direction of baffle, the baffle 36 and structural body side baffle 54 of the downside of lower case side baffle 36
Upper side baffle 54 be configured at the same-phase (referring to Fig. 6 (a), Fig. 6 (b)) being overlapped in the up-down direction.
That is, when baffle arrangement body 24 is clasped relative to the bottom of lower case 18b by a pair of of hooking sheet 56,
The pawl 70 of a pair of of hooking sheet 56 is locked to the baffle 36 of the downside of lower case side baffle 36, wherein a pair of of hooking sheet 56 makes
It is protruded upwards between the baffle 54 of side is located at.As a result, the baffle 36 and structure of the downside of lower case side baffle 36
The upper side baffle 54 of side baffle 54 becomes same-phase in the circumferential, is configured at the position being overlapped in the up-down direction.
Part side peripheral wall 62, which is configured at, not to be had baffle 54 in upside and is formed with opening portion 64 and in downside equipped with baffle
The outside diameter of 54 part.The part side peripheral wall 62 is circumferentially configured with four with about 90 degree of separation angle.With under
The weight loss department 66 of rectangular shape is formed on the side of the opposed part side peripheral wall 62 of the inner wall of portion shell 18b.
As shown in Fig. 2, a pair of of hooking sheet 56 include: erected substantially in parallel upward from the both sides of baffle 54 it is flat
Plate portion 68；And it is arranged on the top of flat part 68, and the claw 72 with the acute angle-shaped pawl 70 of section.A pair of of hooking sheet 56 is set
It is set to, has on the direction being separated from each other flexible and arranged opposite, and the acute angle-shaped pawl 70 of section is dashed forward towards one another
Out.
Each pawl 70 of a pair of of hooking sheet 56 is arranged to, by the baffle 36 for the downside being arranged in the bottom of lower case 18b
Both sides locking.That is, clamping the baffle 36 of the downside of lower case 18b between the mutually opposed pawl 70 of a pair of of hooking sheet 56
Both sides.In addition, in the up-down direction, in the upside of the baffle 36 and baffle arrangement body 24 of the downside of lower case 18b
Defined gap is formed between baffle 54.
The arc-shaped protrusion 58 of baffle arrangement body 24 is arranged to and the outer diameter part of the baffle 36 of the downside of lower case 18b
Lower surface abuts.By the way that the arc-shaped protrusion 58 is arranged, when baffle 36 is engaged using a pair of of pawl 70, arc-shaped protrusion 58 with
The baffle 36 of the side lower case 18b abuts and limits the displacement of the upward direction of baffle arrangement body 24, to eliminate shaking.It needs
Illustrate, the displacement in downward direction of baffle arrangement body 24 is limited by the pawl 70 of a pair of of hooking sheet 56.
In addition, each baffle 54 of baffle arrangement body 24 is arranged to, with from the second cylinder portion 52 towards radial outside and to
The lower end side of lower case 18b tilts.About this point, in aftermentioned middle detailed description.
In this way, the bottom of inside of the baffle arrangement body 24 by a pair of of hooking sheet 56 relative to lower case 18b is arranged to
It is detachable.
The boil-off gas control valve gear 12 of present embodiment is substantially constituted as described above, and then it is acted and is made
It is illustrated with effect.
Fig. 7 is the schematic sectional view for illustrating the gas-liquid separating function of boil-off gas.
In the spatial portion 26 of Fig. 7, lower case is respectively indicated in two rectangular shape cross sectional portions that upside is set side by side
The section of side baffle 36 respectively indicates structural body side baffle 54 in two rectangular shape cross sectional portions that downside is set side by side
Section, the single rectangular shape cross sectional portion that the middle position in upside and downside is configured at center indicate by link come
Form the first cylinder portion 34 and the second cylinder portion 52 of venthole 38,50.In addition, solid arrow indicates the stream of fuel (liquid)
Dynamic, dotted arrow indicates the flowing of air.
If the internal pressure of fuel tank 10 increases, boil-off gas will circulate in spatial portion 26 and flow out to 14 side of access.It steams
The fuel (liquid) contained in body of getting angry is abutted with the structural body side baffle 54 for being on the whole in labyrinth-like configuration, and and lower case
Side baffle 36 abut and and air separation, inhibit the outflow to 20 side of float.In addition, the air contained in boil-off gas passes through knot
The opening portion 64 of structure side baffle 54 and to the lower part shell side baffle 36 circulate, and then pass through the side lower case 18b opening portion
40 and it is logical to 20 effluent of float.As a result, forming the flowing of the only air towards 20 side of float without containing fuel (liquid).
It should be noted that the fuel (liquid) after separation returns in fuel tank 10.
In the present embodiment, boil-off gas, can be by matching in labyrinth-like during spatial portion 26 circulates on the whole
The structural body side baffle 54 and lower case side baffle 36 set separate the fuel contained in boil-off gas (liquid).As a result,
It can reduce the amount of the fuel flowed out via access 14 to 16 side of tank.As a result, in the present embodiment, can be improved steaming
It gets angry the gas-liquid separating function of body.
In addition, in the present embodiment, baffle arrangement body 24 is arranged to fill relative to the bottom of the inside of lower case 18b
It unloads freely.As a result, according to the height of the internal pressure of fuel tank 10, the fuel for being additionally provided with baffle arrangement body 24 can be arbitrarily selected
Case 10 (lower case side baffle 36+ structural body side baffle 54) and the as shown in Figure 5 combustion of not additional setting baffle arrangement body 24
Hopper 10 (only lower case side baffle 36).
That is, according to box shape (case volume) etc. and the internal pressure of fuel tank 10 it is different in the case where, in fuel tank 10
It presses in high type, can choose (the lower case side baffle 36+ structural body of fuel tank 10 for being additionally provided with baffle arrangement body 24
Side baffle 54), on the other hand, in the type forced down in fuel tank 10, it can choose not additional setting baffle arrangement body 24
Fuel tank 10 (only lower case side baffle 36).This is because the steaming being cleaned according to the height of the internal pressure of fuel tank 10
The different reason of tolerance.As a result, in the present embodiment, can be corresponding with the internal pressure of fuel tank 10 and adjust to tank 16
The amount of the fuel of side outflow.
In addition, in the present embodiment, it will by the pawl 70 for a pair of of the hooking sheet 56 being arranged on baffle arrangement body 24
The both sides of lower case side baffle 36 engage, thus it enables that baffle arrangement body 24 is easy assembly relative to lower case 18b.
As a result, in the present embodiment, without using other connecting elements, it will be able to by baffle arrangement body 24 relative to lower case
Body 18b is more compactly connected.
Next, being illustrated to the variation of baffle arrangement body.Fig. 8 is the perspective view of the baffle arrangement body of variation.
It should be noted that marking identical symbol to constituent element identical with baffle arrangement body 24 shown in Fig. 2 and omitting it in detail
It describes in detail bright.
The baffle arrangement body 24a of the variation is compared with baffle arrangement body 24 shown in Fig. 2, the position of a pair of of hooking sheet 56
Set (link position) difference.That is, in baffle arrangement body 24 shown in Fig. 2, make to extend upwards from the both sides of baffle 54
A pair of of hooking sheet 56 erects, but in the baffle arrangement body 24a of variation, from make opening portion 64 be located between and adjacent one
The side of the baffle 54 of the side and another party of the baffle 54 of side erects a pair of of hooking sheet 56.
As a result, the baffle arrangement body 24a of variation is assemblied in lower case 18b by a pair of of hooking sheet 56
When, the baffle 36 of the downside of lower case 18b becomes with the baffle 54 of the upside of baffle arrangement body 24a not to be weighed in the up-down direction
Folded configuration relation.In the up-down direction, the gear of the opening portion 40 of lower case side baffle 36 and the upside of baffle arrangement body 24a
Plate 54 becomes the position of overlapping.
In the case where the bottom for the inside that the baffle arrangement body 24a of variation is assemblied in lower case 18b, with Fig. 2
Shown in baffle arrangement body 24 it is same, can be improved gas-liquid separating function.
Fig. 9 is for exploded perspective view to be omitted in the part of the die device of baffle arrangement body ester moulding.
The die device 80 has: being arranged to can be along up and down direction with respect to status by elevating mechanism (not shown)
The upper mold 82 and lower die 84 of shifting；And it is arranged along the sliding die 86 that general horizontal direction can retreat.
In upper mold 82 and lower die 84, it is respectively formed with by male and fomale(M&F) structure corresponding with the shape of baffle arrangement body 24,24a
At forming face.In addition, in sliding die 86, be formed be made of recess portion corresponding with the claw 72 of hooking sheet 56 and at
The claw forming section 88 of the shape claw 72.For the claw 72 of hooking sheet 56, only pass through the forming of upper mold 82 and lower die 84
Face is difficult to be shaped, therefore is shaped by the claw forming section 88 for the sliding die 86 that can be slided along horizontal direction.
In addition, in the present embodiment, make structural body side baffle 54 with from the second cylinder portion 52 towards radial outside and
Thus the lower end side inclination of shell 18b to the lower part is easy edge in the fuel (liquid) that the lower surface of structural body side baffle 54 is adhered to
Inclined surface flowing so that fuel (liquid) is easy to return into fuel tank 10.In addition, from upper mold 82 is separated with lower die 84
From the perspective of demoulding, production technology can be improved.
Claims (3)
1. a kind of boil-off gas controls valve gear, include
Shell is installed on fuel tank；
Float is arranged to move up and down freely in the spatial portion formed in the shell；
The top of the float is arranged in spool；
Access is arranged in the downstream side of the spool, and is connected to the external of the fuel tank；And
First venthole and the second venthole, the bottom of the shell is arranged in they, makes the spatial portion and the fuel tank
It is interior connection and the fuel in the fuel tank is imported into the spatial portion,
The boil-off gas control valve gear has the baffle for the flowing that configuration inhibits the fuel in the lower section of the float
Structural body,
The boil-off gas controls valve gear and is characterized in that,
Multiple baffles are configured in all shapes in a manner of surrounding first venthole in the bottom of the shell,
In the lower section arrangement of baffles structural body of the shell, which has second venthole formed by cylinder
With other baffles configured in all shapes for surrounding second venthole,
The baffle arrangement body is mounted to detachable relative to the shell.
2. boil-off gas according to claim 1 controls valve gear, which is characterized in that
The baffle arrangement body has the hooking sheet extended upward from other described baffles,
The hooking sheet is locked to the baffle of the bottom of the shell.
3. boil-off gas according to claim 1 controls valve gear, which is characterized in that
Other described baffles are tilted with from the cylinder towards radial outside to the lower end side of the shell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-123384 | 2015-06-19 | ||
| JP2015123384A JP2017008763A (en) | 2015-06-19 | 2015-06-19 | Evaporation gas control valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106257041A CN106257041A (en) | 2016-12-28 |
| CN106257041B true CN106257041B (en) | 2018-12-28 |
Family
ID=57713558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610282390.5A Active CN106257041B (en) | 2015-06-19 | 2016-04-29 | Boil-off gas controls valve gear |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017008763A (en) |
| CN (1) | CN106257041B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340412B (en) * | 2018-11-27 | 2024-03-08 | 戴胜汽车科技（苏州）有限公司 | Combined valve with hydrops function for automobile oil tank |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4237042B2 (en) * | 2003-12-18 | 2009-03-11 | 京三電機株式会社 | Evaporative gas control valve structure |
| JP5767946B2 (en) * | 2011-11-11 | 2015-08-26 | 株式会社ニフコ | Fuel tank exhaust valve device |
-
2015
- 2015-06-19 JP JP2015123384A patent/JP2017008763A/en active Pending
-
2016
- 2016-04-29 CN CN201610282390.5A patent/CN106257041B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017008763A (en) | 2017-01-12 |
| CN106257041A (en) | 2016-12-28 |
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