CN205149519U - Be suitable for car fuel tank of ORVR system - Google Patents

Be suitable for car fuel tank of ORVR system Download PDF

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Publication number
CN205149519U
CN205149519U CN201520814191.5U CN201520814191U CN205149519U CN 205149519 U CN205149519 U CN 205149519U CN 201520814191 U CN201520814191 U CN 201520814191U CN 205149519 U CN205149519 U CN 205149519U
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China
Prior art keywords
oil
valve
oiling
fuel tank
fuel
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CN201520814191.5U
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Chinese (zh)
Inventor
刘亚哲
王桂群
朱成辉
王可
刘强
朱征
张续升
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Zhengzhou Nissan Automobile Co Ltd
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Zhengzhou Nissan Automobile Co Ltd
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Priority to CN201520814191.5U priority Critical patent/CN205149519U/en
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Abstract

The utility model discloses a be suitable for car fuel tank of ORVR system, including being provided with the casing with the oil pipe interface, adding the oil pipe interface and extend to it has with the oil cut -off valve to feed through in the casing, middle part roof department is provided with the oiling limit valve in the casing, and the oiling limit valve evaporation house steward outer with extending to the casing be linked together, oiling limit valve both sides are provided with and extend to the outer breather pipe that refuels of casing, in the casing refuel the breather pipe terminal with the oiling limit valve at a distance of 50 -100mm to the contained angle that forms with oily limit valve bottom surface <= 5. The utility model discloses simple structure, it is reasonable to arrange, the good seal, furthest's reduction the spillage of oil vapour, collect the oil vapour to the carbon tank effectively, can avoid the oil tank not fill up the phenomenon of just jumping the rifle simultaneously to and oil tank in oil tank fuel spun phenomenon when filling it up with oil.

Description

Be suitable for the fuel tank of vehicle of ORVR system
Technical field
The utility model relates to vehicle fuel feed system field, especially relates to a kind of fuel tank of vehicle being suitable for ORVR system.
Background technology
ORVR (OnboardRefuelingVaporRecovery) i.e. vehicle-mounted oil filling gas recovery system for oil is a kind of gasoline vehicle emission control system, and this system is intended to collect the gasoline vapor evaporated from fuel tank in refueling process.This technology is that the U.S. requires higher gas recovery system for oil after secondary gas recovery system for oil.Fuel tank, as a part for automotive fuel oil system, act as vital effect in whole ORVR system, requires that the fuel-steam amount of waving in it is in specialized range.How to arrange pipeline and the valve of fuel loading system and fuel steam discharge system, the fuel-steam volatile quantity of fuel tank is reduced as far as possible, possesses anti-jump rifle, open flow functional oil simultaneously, become the difficult point of ORVR system fuel tank design.
Summary of the invention
The utility model provides a kind of fuel tank of vehicle being suitable for ORVR system, and it is little that object is that solution ORVR system automobile fuel tank can not possess fuel-steam volatile quantity simultaneously, and possess the problem of anti-jump rifle, open flow functional oil simultaneously.
For achieving the above object, the utility model can take following technical proposals:
The fuel tank of vehicle being suitable for ORVR system described in the utility model, comprises the housing being provided with oil filler pipe joint, and described oil filler pipe joint to extend in described housing and is communicated with and adds oil cut-off valve; In described housing, roof place, middle part is provided with oiling limit valve, and described oiling limit valve is connected with the evaporation house steward extended to outside housing; The case inside roof place being positioned at described oiling limit valve both sides is respectively arranged with roll-over valve, and described roll-over valve is communicated with fuel cut-off valve by evaporating branch pipe, and described fuel cut-off valve evaporates house steward be connected with described; Described oiling limit valve both sides are provided with the oiling breather pipe extended to outside housing, and the oiling breather pipe end in described housing and oiling limit valve are at a distance of 50-100mm, and angle≤5 ° formed with oily limit valve bottom surface.
Described housing upper is provided with fuel oil pump seat.
Described lower housing portion is provided with oil tray.
Described housing outer surface is provided with abrasion-proof pad.
The fuel tank of vehicle of ORVR system that what the utility model provided be suitable for, all pipelines and valve body are all positioned at fuel tank internal, and structure is simple, connection and reasonable arrangement, and good seal, decreases the spillage of oil vapour to greatest extent; The oiling limit valve adopted, all can be collected into canister by oil vapour most in fuel tank, effectively reduce the volatilization of fuel-steam; The synergy of each pipeline and valve, effectively can avoid fuel tank not fill it up with the phenomenon of just jumping rifle, simultaneously when fuel tank fills it up with oil, add oil cut-off valve and close rapidly, effectively prevents fuel oil ejection in fuel tank.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is valve body of the present utility model, pipeline structure schematic diagram.
Detailed description of the invention
As shown in Figure 1, 2, the fuel tank of vehicle being suitable for ORVR system described in the utility model, comprise the metal shell 2 closed by all-round seam welding by upper shell and lower house, oil filler pipe joint 1 is fixed on top housing, fuel tank 2 by all-round soldering, it is outside that its one end extends to housing 2, the other end be positioned at housing 2 and be communicated with carry buckle add oil cut-off valve 3, this valve can only be opened to fuel tank internal, when rifle is jumped in oiling, regurgitating under fuel oil drive, this valve cuts out, situation when can effectively avoid fuel tank to fill it up with outside fuel oil ejection car.
In housing 2, roof place, middle part is welded with oiling limit valve 4 by 3, support, and oiling limit valve 4 effectively can control the volume read-out in fuel tank, and this valve is connected with the evaporation house steward 5 extended to outside housing 2; Inside the housing 2 being positioned at oiling limit valve 4 both sides, roof place is welded with roll-over valve 6 by support point respectively; roll-over valve 6 is communicated with fuel cut-off valve 8 by evaporating branch pipe 7; this roll-over valve 6 can, when there is overturning or vehicle rollover, cut out to avoid fuel tank leakage of oil.For easy for installation, usual use one section of flexible pipe in roll-over valve 6 exit is connected with evaporating branch pipe 7.Afterwards, fuel cut-off valve 8 exit connects one section of sebific duct and is connected with evaporation house steward 5, and this evaporation house steward 5 is connected with the outside canister collecting oil vapour.Under normal condition, the evaporation pipeline that the fuel-steam in fuel tank is connected with roll-over valve 6 by fuel cut-off valve 8 communicates with the external world, and as emergency situations such as overturnings, the roll-over valve 6 of end cuts out, and prevents fuel leakage in fuel tank; Evaporating branch pipe 7 external diameter is φ 6.35, and evaporation house steward 5 external diameter is φ 15, and arranges the reducing being positioned at fuel tank outside of φ 6.5 at the end of evaporation house steward 5, to limit the oil vapour amount towards canister.Evaporating branch pipe 7 and evaporation house steward 5 are welded on fuel tank upper shell 2 by self-carrying bracket; Above-mentioned two roll-over valves 6 can not be partly flooded with fuel simultaneously, and as fuel tank overturns, this valve can cut out automatically, ensure that in fuel tank, fuel oil does not leak;
Oiling limit valve 4 both sides are provided with the oiling breather pipe 9 extended to outside housing 2, and this oiling breather pipe 9 is communicated in external dressing pipe assembly circulating system.The breather pipe 9 that refuels is fixed on fuel tank upper shell 2 by all-round projection welding, in order to make fuel loading system keep unimpeded, avoids fuel tank not fill it up with the situation of just jumping rifle, is positioned at oiling breather pipe 9 end and oiling limit valve 4 50-100mm apart of housing; Consider petrol service station pavement roughness, in order to prevent the appearance causing following situation due to inclination, namely when fuel tank is not filled it up with, liquid level had not had the end of oiling breather pipe 9, and make oil gas cannot form circulation by oiling breather pipe 9, cause fuel tank not fill it up with the situation of just jumping rifle, require angle≤5 ° that the oiling breather pipe 9 in housing is formed with oily limit valve 4 bottom surface simultaneously.In addition, require that oil filler pipe joint 1 and the length of oiling breather pipe 9 outside housing 2 can not interfere the all-round seam weldering between upper-lower casing,
For convenience fuel charger is installed, is welded with fuel charger seat 10 at the fuel charger mounting hole place point of upper shell 2.The inside oil tray 11 of corresponding fuel oil pump seat 10 passes through oil tray support installing in the deep gouge place of fuel tank lower house 2.In order to prevent collision or by frictionally damage housing 2, be pasted with multiple abrasion-proof pad 12 at its outside face.
Refuel and start, fuel oil is opened by oil filler pipe joint 1 and is added oil cut-off valve 3 and enter in fuel tank, and in the process, need keep the oiling speed of 38L/min, can produce a large amount of oil vapours in fuel tank, fuel tank internal gas pressure raises.Because of the restriction of oiling breather pipe 9 caliber, wherein small part oil vapour enters into external dressing pipe assembly by oiling breather pipe 9, and at oil filling port, place is collected by nozzle; Most of oil steam is by oiling limit valve 4 in addition, enters into outside canister collect through pervaporation house steward 5.Said process is until pasta is raised to oiling limit valve 4 bottom surface, and it is inner that fuel oil enters into oiling limit valve 4, and float rising valve-off in valve, most of steam cannot flow out.Meanwhile, because the quantity of steam flowed out by oiling breather pipe 9 and fuel cut-off valve 8 is limited, under combined action, tank pressure raises rapidly.Fuel oil is returned fuel filler pipe by the air pressure top in fuel tank, floods oiling muzzle, refuels and jumps rifle, because adding oil cut-off valve 3 only to the unidirectional openability in fuel tank, regurgitate fuel oil and drive and add oil cut-off valve 3 and close rapidly, be unlikely to fuel oil and spray in fuel filler pipe, so far, fuel tank adds to nominal volume.
The all pipelines of the utility model and valve body are all positioned at fuel tank internal, connection and reasonable arrangement, good seal, decrease the spillage of oil vapour to greatest extent; The oiling limit valve adopted, can either have the volume read-out controlled in fuel tank, oil vapour most in fuel tank all can be collected into canister again, greatly reduce the volatilization of fuel-steam; The synergy of each pipeline and valve, effectively can avoid fuel tank not fill it up with the phenomenon of just jumping rifle, simultaneously when fuel tank fills it up with oil, add oil cut-off valve and close rapidly, effectively prevents fuel oil ejection in fuel tank.

Claims (4)

1. be suitable for a fuel tank of vehicle for ORVR system, comprise the housing (2) being provided with oil filler pipe joint (1), it is characterized in that: described oil filler pipe joint (1) to extend in described housing (2) and is communicated with and adds oil cut-off valve (3); Roof place, middle part is provided with oiling limit valve (4) in described housing (2), described oiling limit valve (4) with extend to housing (2) evaporation house steward (5) outward and be connected; The roof place, housing (2) inner side being positioned at described oiling limit valve (4) both sides is provided with roll-over valve (6) respectively, described roll-over valve (6) is communicated with fuel cut-off valve (8) by evaporating branch pipe (7), and described fuel cut-off valve (8) evaporates house steward (5) be connected with described; Described oiling limit valve (4) both sides are provided with and extend to housing (2) oiling breather pipe (9) outward, oiling breather pipe (9) end in described housing (2) and oiling limit valve (4) are at a distance of 50-100mm, and angle≤5 ° formed with oily limit valve (4) bottom surface.
2. the fuel tank of vehicle being suitable for ORVR system according to claim 1, is characterized in that: described housing (2) top is provided with fuel oil pump seat (10).
3. the fuel tank of vehicle being suitable for ORVR system according to claim 1, is characterized in that: described housing (2) bottom is provided with oil tray (11).
4. the fuel tank of vehicle being suitable for ORVR system according to claim 3, is characterized in that: described housing (2) outside face is provided with abrasion-proof pad (12).
CN201520814191.5U 2015-10-21 2015-10-21 Be suitable for car fuel tank of ORVR system Active CN205149519U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520814191.5U CN205149519U (en) 2015-10-21 2015-10-21 Be suitable for car fuel tank of ORVR system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520814191.5U CN205149519U (en) 2015-10-21 2015-10-21 Be suitable for car fuel tank of ORVR system

Publications (1)

Publication Number Publication Date
CN205149519U true CN205149519U (en) 2016-04-13

Family

ID=55685248

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520814191.5U Active CN205149519U (en) 2015-10-21 2015-10-21 Be suitable for car fuel tank of ORVR system

Country Status (1)

Country Link
CN (1) CN205149519U (en)

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