A kind of device of vapour liquid separator and oil tank liquid level control pile-up valveTechnical field
The present invention relates to automobile component field, the dress of especially a kind of vapour liquid separator and oil tank liquid level control pile-up valveIt sets.
Background technique
Automotive oil tank generally all has vapour liquid separator (code name LVS), and the effect of vapour liquid separator LVS is: automobile existsDuring traveling is jolted, the steam gasoline in evaporation tube road is separated with liquid gasoline, prevents liquid gasoline from entering charcoalTank makes canister fail, and pollutes environment.Fluid level control valve (code name FLVV) is also equipped in automotive oil tank, which, which realizes, addsControl adding amount, reduction oiling steam enter the amount of canister, meet the requirement of oiling Steam Recovery when infusing fuel oil.Fluid level control valve isA kind of high-flow air-exhaust valve, while having the function of overturning anti-leak.Vapour liquid separator and fluid level control valve one in the prior artAs use separate type form, and be set in fuel tank simultaneously respectively, using by oil tank liquid level control valve and vapour liquid separator collectionAt form, need to occupy fuel tank space by discrete type setting, increase volume of fuel tank, increase producing cost.
Summary of the invention
To solve the above problems, the invention discloses a kind of vapour liquid separators and oil tank liquid level to control pile-up valveDevice, specific technical solution is as follows: a kind of device of vapour liquid separator and oil tank liquid level control pile-up valve, including liquid level controlValve chest processed, floating core, spring, vapour liquid separator, fixed bracket, connecting bracket；
The Liquid level valve chest is in double-layer structure, and the fluid level control valve enclosure interior is in hollow structure, forms liquidLevel control valve cavity, the fluid level control valve cavity top end are in via-like structure, form venthole, the Liquid level valve chestOuter layer side wall top is in through-hole structure, forms level window, the level window connection fuel tank and fluid level control valve enclosure interior；It is describedFloating core is set in the Liquid level valve chamber, and the floating core is in slidably to be arranged with the Liquid level valve chamber；It is describedLiquid level valve chest inner bottom surface is in groove-like structure, and the floating convex structure in core bottom end, the floating core bottom end is embedded in instituteIt states in fluid level control valve housing bottom surface groove, realizes that slot is fixed；The spring is set in the Liquid level valve chest, instituteIt states and is fixedly connected on the outside of spring one end and floating core top surface, the spring other end is fixed with the Liquid level valve chest inner top surfaceConnection；
Fluid level control valve housing exterior walls top is circumferentially in boss-shaped structure, forms attachment base, the attachment base is in circleCyclic structure, the attachment base are fixedly connected with the Liquid level valve chest, are in integral structure, outside the attachment base top surfaceThe circumferential convex structure of circle, forms attachment base convex block；
The vapour liquid separator is set to the fluid level control valve housing tip, the vapour liquid separator bottom end be circumferentially inOuter lug shape structure forms attachment base in vapour liquid separator, attachment base structure annular in shape in the vapour liquid separator, the vapourAttachment base center is in groove-like in liquid/gas separator, and the fluid level control valve housing tip is inserted into attachment base in the vapour liquid separatorCenter groove in, realize Liquid level valve chest and gas-liquid separator limit fix；The gas-liquid separator bottom end is in through-holeShape, and penetrate through and connect with the venthole, the venthole connection gas-liquid separator bottom end and fluid level control valve cavity top end；InstituteIt states and is equipped with the outer attachment base of vapour liquid separator, the outer attachment base of the vapour liquid separator and the gas in vapour liquid separator on the outside of attachment baseLiquid/gas separator bottom surface is fixedly connected, and is in integral structure；The fixed bracket is set to described vapour liquid separator one end, described solidFixed rack and the vapour liquid separator are realized by clamping to be fixed, and the fixed bracket side is equipped with vapour liquid separator import, instituteIt states vapour liquid separator import to be fixedly connected with the fixed support vertical, the vapour liquid separator inlet end and the vapour-liquid pointIt is penetrated through from device；The vapour liquid separator import and the perforation of described vapour liquid separator one end connect；The vapour liquid separator other endIt is exported equipped with vapour liquid separator, the vapour liquid separator outlet is connected with vapour liquid separator other end perforation；The vapour-liquidSeparator interior is equipped with partition, and four side of partition is fixedly connected with the vapour liquid separator inner wall, is in integral structure, institutePartition one end is stated in Openworks shape structure, forms bulkhead through-hole, the bulkhead through-hole is connected to vapour liquid separator import, vapour liquid separatorOutlet and Liquid level valve chamber；
The connecting bracket structure annular in shape, the connecting bracket section is in boss-shaped, in the connecting bracket top marginThe heart is in groove-like structure, forms connecting bracket upper groove, and connecting bracket bottom edge center is in card groove-like structure, forms connection branchFrame lower bayonet slot；The connecting bracket is buckled on the attachment base, is caught in the connecting bracket lower bayonet slot by attachment base convex block,It realizes that connecting bracket bottom end is fixedly connected with the Liquid level valve chest, passes through attachment base insertion connection branch outside vapour liquid separatorIn frame upper groove, realizes that connecting bracket top is fixedly connected with the vapour liquid separator, complete Liquid level valve chest and vapour-liquidSeparator is fixed.
Further, the cylindrical structure of the floating core bottom end outer wall, the floating core bottom end outer diameter are slightly less than the liquid levelControl valve chamber internal diameter.
Further, the floating core top can be protruded into the venthole, and the floating core top is in the venthole canIt is slidably connected, the floating core top outer diameter and the venthole internal diameter are adapted.
Further, the internal diameter of attachment base and the venthole internal diameter are adapted in the vapour liquid separator.
Further, the vapour liquid separator outlet is circular tube shaped, and the vapour liquid separator outlet inside wall diameter is in one endThe small structure in big one end, described lesser one end of vapour liquid separator diameter is protruded into the vapour liquid separator, with the vapor-liquid separationDevice is fixedly connected, and vapour liquid separator outlet is in angularly disposed with the vapour liquid separator.
Further, the partition is in the thin plate-shaped structure of the high center bottom in two sides, and section is " V " font, and the partition is setIt is consistent with the setting direction that the vapour liquid separator exports to set direction.
Further, the bulkhead through-hole, which is set to, is close to vapour liquid separator inlet side.
Further, the outer attachment base diameter of the diameter of the connecting bracket upper groove, shape and the vapour liquid separator, shapeShape is adapted, the section of the connecting bracket upper groove narrow wide structure under being in.
Further, diameter with the attachment base convex block of the diameter of the connecting bracket lower bayonet slot, shape, shape shape phaseIt adapts to.The beneficial effects of the present invention are:
The present invention is by vapour liquid separator and being integrated in one of fluid level control valve form, to vapour liquid separator and Liquid levelThe change of valve self structure and connection structure, and by being attached equipped with connecting bracket, make to form between effectivelyGas-liquid distribution channel, ensure that in fuel tank with the extraneous sealing under different conditions or be connected to, meet a variety of working conditions, expireWhile sufficient basic applying working condition function, the use space occupied to fuel tank is reduced, it is empty to provide more oil storages in fuel tankBetween, improve the space utilization rate of fuel tank；The two by the integrated of structure and is improved simultaneously, reduces manufacturing cost, dropLow initial cost, economy are high.
Detailed description of the invention
Fig. 1 is monnolithic case structural schematic diagram of the invention.
Fig. 2 is the complete section structural schematic diagram that the present invention faces.
Fig. 3 is the broken section structural schematic diagram of side view of the present invention.
Fig. 4 is the structural schematic diagram of connecting bracket of the present invention.
Fig. 5 is the schematic cross-sectional view of connecting bracket of the present invention.
Reference signs list: Liquid level valve chest 1, venthole 1-2, level window 1-3, connects Liquid level valve chamber 1-1Joint chair 1-4, attachment base convex block 1-5, floating core 2, spring 3, vapour liquid separator 4, attachment base 4-1, vapor-liquid separation in vapour liquid separatorThe outer attachment base 4-2 of device, vapour liquid separator import 4-3, vapour liquid separator outlet 4-4, partition 4-5, bulkhead through-hole 4-6, fixed branchFrame 5, connecting bracket 6, connecting bracket upper groove 6-1, connecting bracket lower bayonet slot 6-2.
Specific embodiment
Clear to be more clear technical solution of the present invention, the present invention is described further with reference to the accompanying drawing,The technical characteristic of any pair of technical solution of the present invention carries out the scheme that equivalencing is obtained with conventional reasoning and each falls within guarantor of the present inventionProtect range.Being fixedly connected mentioned in the present embodiment, fixed setting, fixed structure are the sheets such as welding, hot melt integrated moldingThe well-known technique that field technical staff is known.
In conjunction with attached drawing as it can be seen that a kind of vapour liquid separator and oil tank liquid level control the device of pile-up valve, including fluid level control valveShell, floating core, spring, vapour liquid separator, fixed bracket, connecting bracket；
The Liquid level valve chest is in double-layer structure, and the fluid level control valve enclosure interior is in hollow structure, forms liquidLevel control valve cavity, the fluid level control valve cavity top end are in via-like structure, form venthole, the Liquid level valve chestOuter layer side wall top is in through-hole structure, forms level window, the level window connection fuel tank and fluid level control valve enclosure interior；It is describedFloating core is set in the Liquid level valve chamber, and the floating core is in slidably to be arranged with the Liquid level valve chamber；It is describedLiquid level valve chest inner bottom surface is in groove-like structure, and the floating convex structure in core bottom end, the floating core bottom end is embedded in instituteIt states in fluid level control valve housing bottom surface groove, realizes that slot is fixed；The spring is set in the Liquid level valve chest, instituteIt states and is fixedly connected on the outside of spring one end and floating core top surface, the spring other end is fixed with the Liquid level valve chest inner top surfaceConnection；
Fluid level control valve housing exterior walls top is circumferentially in boss-shaped structure, forms attachment base, the attachment base is in circleCyclic structure, the attachment base are fixedly connected with the Liquid level valve chest, are in integral structure, outside the attachment base top surfaceThe circumferential convex structure of circle, forms attachment base convex block；
The vapour liquid separator is set to the fluid level control valve housing tip, the vapour liquid separator bottom end be circumferentially inOuter lug shape structure forms attachment base in vapour liquid separator, attachment base structure annular in shape in the vapour liquid separator, the vapourAttachment base center is in groove-like in liquid/gas separator, and the fluid level control valve housing tip is inserted into attachment base in the vapour liquid separatorCenter groove in, realize Liquid level valve chest and gas-liquid separator limit fix；The gas-liquid separator bottom end is in through-holeShape, and penetrate through and connect with the venthole, the venthole connection gas-liquid separator bottom end and fluid level control valve cavity top end；InstituteIt states and is equipped with the outer attachment base of vapour liquid separator, the outer attachment base of the vapour liquid separator and the gas in vapour liquid separator on the outside of attachment baseLiquid/gas separator bottom surface is fixedly connected, and is in integral structure；The fixed bracket is set to described vapour liquid separator one end, described solidFixed rack and the vapour liquid separator are realized by clamping to be fixed, and the fixed bracket side is equipped with vapour liquid separator import, instituteIt states vapour liquid separator import to be fixedly connected with the fixed support vertical, the vapour liquid separator inlet end and the vapour-liquid pointIt is penetrated through from device；The vapour liquid separator import and the perforation of described vapour liquid separator one end connect；The vapour liquid separator other endIt is exported equipped with vapour liquid separator, the vapour liquid separator outlet is connected with vapour liquid separator other end perforation；The vapour-liquidSeparator interior is equipped with partition, and four side of partition is fixedly connected with the vapour liquid separator inner wall, is in integral structure, institutePartition one end is stated in Openworks shape structure, forms bulkhead through-hole, the bulkhead through-hole is connected to vapour liquid separator import, vapour liquid separatorOutlet and Liquid level valve chamber；
The connecting bracket structure annular in shape, the connecting bracket section is in boss-shaped, in the connecting bracket top marginThe heart is in groove-like structure, forms connecting bracket upper groove, and connecting bracket bottom edge center is in card groove-like structure, forms connection branchFrame lower bayonet slot；The connecting bracket is buckled on the attachment base, is caught in the connecting bracket lower bayonet slot by attachment base convex block,It realizes that connecting bracket bottom end is fixedly connected with the Liquid level valve chest, passes through attachment base insertion connection branch outside vapour liquid separatorIn frame upper groove, realizes that connecting bracket top is fixedly connected with the vapour liquid separator, complete Liquid level valve chest and vapour-liquidSeparator is fixed.
Further, the cylindrical structure of the floating core bottom end outer wall, the floating core bottom end outer diameter are slightly less than the liquid levelControl valve chamber internal diameter.
Further, the floating core top can be protruded into the venthole, and the floating core top is in the venthole canIt is slidably connected, the floating core top outer diameter and the venthole internal diameter are adapted.
Further, the internal diameter of attachment base and the venthole internal diameter are adapted in the vapour liquid separator.
Further, the vapour liquid separator outlet is circular tube shaped, and the vapour liquid separator outlet inside wall diameter is in one endThe small structure in big one end, described lesser one end of vapour liquid separator diameter is protruded into the vapour liquid separator, with the vapor-liquid separationDevice is fixedly connected, and vapour liquid separator outlet is in angularly disposed with the vapour liquid separator.
Further, the partition is in the thin plate-shaped structure of the high center bottom in two sides, and section is " V " font, and the partition is setIt is consistent with the setting direction that the vapour liquid separator exports to set direction.
Further, the bulkhead through-hole, which is set to, is close to vapour liquid separator inlet side.
Further, the outer attachment base diameter of the diameter of the connecting bracket upper groove, shape and the vapour liquid separator, shapeShape is adapted, the section of the connecting bracket upper groove narrow wide structure under being in.
Further, diameter with the attachment base convex block of the diameter of the connecting bracket lower bayonet slot, shape, shape shape phaseIt adapts to.Structural principle of the invention is:
By present apparatus integral installation in the upper surface of fuel tank, when under normal condition, the floating core of fluid level control valve due toSpring-compressed is made floating core be in the bottom of Liquid level valve chamber by gravity, at this point, fluid level control valve cavity top end is logicalStomata is in the open state, and gas enters Liquid level valve chamber by level window in fuel tank, enters vapor-liquid separation through ventholeDevice is in ventilatory state with extraneous by vapour liquid separator outlet.When gasoline gas enters vapour liquid separator, a part of gasIn the coagulation of vapour liquid separator inner wall and vapour liquid separator outlet, formation is liquid to be flowed back in vapour liquid separator, and alongSeparator flow drips in venthole through bulkhead through-hole, and liquid gasoline flows through Liquid level valve chamber and flows back in fuel tank.A partGasoline gas and the gas of vapour liquid separator import form gas stream, export unified discharge from vapour liquid separator.
When the present apparatus is under fueling state, when gasoline is not up to level window, without gasoline in Liquid level valve chamber,Venthole is in the open state, and the gas in fuel tank can be expelled directly out fuel tank from the present apparatus.
When the present apparatus is under ramp overturning state, gasoline is entered in Liquid level valve chamber by level window, is passed throughBuoyancy moves upwards floating core, and venthole, which moves upwards, to be in close state, and prevents fuel oil from leaking outside and enters vapour liquid separatorIn.
The beneficial effects of the present invention are:
The present invention is by vapour liquid separator and being integrated in one of fluid level control valve form, to vapour liquid separator and Liquid levelThe change of valve self structure and connection structure, and by being attached equipped with connecting bracket, make to form between effectivelyGas-liquid distribution channel, ensure that in fuel tank with the extraneous sealing under different conditions or be connected to, meet a variety of working conditions, expireWhile sufficient basic applying working condition function, the use space occupied to fuel tank is reduced, it is empty to provide more oil storages in fuel tankBetween, improve the space utilization rate of fuel tank；The two by the integrated of structure and is improved simultaneously, reduces manufacturing cost, dropLow initial cost, economy are high.