CN103269892A - A tank arrangement and method for operating a vehicle tank arrangement - Google Patents
A tank arrangement and method for operating a vehicle tank arrangement Download PDFInfo
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- CN103269892A CN103269892A CN2010800708867A CN201080070886A CN103269892A CN 103269892 A CN103269892 A CN 103269892A CN 2010800708867 A CN2010800708867 A CN 2010800708867A CN 201080070886 A CN201080070886 A CN 201080070886A CN 103269892 A CN103269892 A CN 103269892A
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- fuel tank
- air
- fuel
- tank
- pass passage
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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
- 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
- F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
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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
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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
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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
- B60K2015/03118—Multiple tanks, i.e. two or more separate tanks
- B60K2015/03138—Pumping means between the compartments
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Disclosed is a tank arrangement (100) for a vehicle, particularly a truck, comprising at least a first fuel tank (10) and a second fuel tank (20) which are connected by a balancing pipe (30), and a one way valve, such as a check valve, (32) which is arranged in the balancing pipe (30) between the at least two tanks (10, 20) for allowing a flow direction from the second tank (20) to the first tank (10) and blocking a flow in the reverse direction, wherein the tank arrangement (100) further comprises an air pressure regulation system (40) that regulates an air pressure of the first fuel tank (10) and/or an air pressure of the second fuel tank (20) so that the air pressure in the first fuel tank (10) is lower than the air pressure in the second fuel tank (20), as well as a vehicle comprising such a tank arrangement (100) and a method for operating such a tank arrangement (100).
Description
Technical field
The disclosure relates to a kind of tank equipment, a kind of vehicle of tank equipment and method that is used for operation oil tank of vehicle equipment of comprising.
Background technology
Become known for various systems and the technology of fuel-in-storage in vehicle.In truck, use two fuel tank structures usually, wherein use two fuel tanks to store required fuel.In other possible structure, usually with fuel conservation in main oil tank and one or more so-called " pair " fuel tank.Can extract the fuel that is used for vehicle motor the two from main oil tank and additional fuel tank.Since more recent, commonly directly from main oil tank and indirectly, namely extracted the fuel that is used for vehicle motor from additional fuel tank via main oil tank.
Yet the total problem that is associated with this indirect major-minor structure is to be difficult to extract from additional fuel tank the fuel of total volume; The fuel of certain percentum always remains in the additional fuel tank.This volume/residual fuel that is not used is converted into the mileage of minimizing and the weight of increase.In addition, this indirect major-minor structure often requires to recharge with certain order, namely must earlier a specific fuel tank be filled before other fuel tank can be filled.
Another the total problem that is associated with this major-minor structure is, vehicle is parked and can be caused fluid to flow in the additional fuel tank on the slope, therefore with the main oil tank emptying.The emptying of main oil tank may fuel shutoff flowing to driving engine.
Advised that various solutions solve this problem.For example WO2010/068149 has instructed a kind of tank equipment, and wherein main oil tank is connected by equalizing pipe with additional fuel tank.Suction tube supplies fuel to vehicle motor, and recurrent canal supplies to fuel at least one Fuel Tank of described Fuel Tank from driving engine.Equalizing pipe is provided with first end, in order to supplying fuel to main oil tank, and is provided with second end, in order to from additional fuel tank sucking-off fuel.Boiler check valve is arranged in the equalizing pipe between two fuel tanks of recurrent canal upstream, thereby allows from second fuel tank flow direction to first fuel tank, and stops in opposite direction and flow.Yet this method does not allow emptying additional fuel tank fully.
JP51-148120 provides the continuous fuel from the additional fuel tank to the main oil tank to supply with, and this realizes by utilizing the difference between the barometric pressure on the fuel surface in the negative pressure that is associated with fuel minimizing in the main oil tank and the additional fuel tank that acts on the fuel supply system with a plurality of Fuel Tanks.Yet this technology is not possess inferior position.For example, if mobile get clogged of fuel from the additional fuel tank to the main oil tank, then the consequent big negative pressure in main oil tank will suppress fuel from the main oil tank flow direction engine.In addition because the fuel level in the additional fuel tank will be often with main oil tank in fuel level obviously different, so this technical limitation estimate total amount of fuel based on the measurement in the single fuel tank.Without doubt, if the fuel between main oil tank and the additional fuel tank flows by total blockage, then there is the risk of damaging main oil tank.
Purpose of the present disclosure is to solve aforesaid drawbacks of the prior art.
Summary of the invention
This purpose is by being solved according to the tank equipment of claim 1 and according to the vehicle of claim 13 and according to the method for claim 15.
The present invention is based on following design, namely be provided for the particularly tank equipment of truck of vehicle, described tank equipment comprises air pressure control system, described air pressure control system is regulated the air pressure of first Fuel Tank and/or the air pressure of second Fuel Tank, makes the air pressure in the Fuel Tank of winning lower than the air pressure in second Fuel Tank.Because the bigger pressure in second Fuel Tank, fuel is transferred to first Fuel Tank by equalizing pipe from second Fuel Tank reliably.Therefore, can fuel be emptied to first Fuel Tank from second Fuel Tank with the most complete possible degree.
In addition, disclosed tank equipment comprises at least one first Fuel Tank and at least one second Fuel Tank, and described at least one first Fuel Tank is connected by equalizing pipe with at least one second Fuel Tank.Below, at least one first Fuel Tank and at least one second Fuel Tank will be called " first Fuel Tank "/" second Fuel Tank ".Therefore, term " the first/the second Fuel Tank " is interpreted as meaning the one or more of described at least one the first/the second Fuel Tank.
The first/the second Fuel Tank comprise surpass a Fuel Tank with the situation that is used for the fuel space on the maximization truck under, each Fuel Tank all can be made by identical or different materials.Therefore, even main oil tank can be by constituting above a fuel tank, as long as can freely move near place, fuel tank top air, and place's fuel can freely move bottom the close fuel tank, and fuel preferably supplies to driving engine from main oil tank fully.
According to preferred embodiment, tank equipment comprises check valve, such as boiler check valve, described check valve is arranged in the equalizing pipe at least between described two Fuel Tanks, to allow the flow direction from second Fuel Tank to first Fuel Tank and to stop flowing in the opposite direction.If check valve is for example guaranteed vehicle on the slope, then fuel can not flow from first Fuel Tank and get back to second Fuel Tank.Yet because the difference of pressure between first Fuel Tank and second Fuel Tank, the fuel that flows through equalizing pipe from second Fuel Tank can overcome the resistance to flow that is applied by check valve and therefore flow to first Fuel Tank.
According to another preferred embodiment, air pressure control system can comprise first air by-pass passage, and described first air by-pass passage is connected first Fuel Tank and the air by described first air by-pass passage is presented first resistance with ambient atmosphere.Air pressure control system also can comprise second air by-pass passage, and described second air by-pass passage is connected second Fuel Tank and the air by described second air by-pass passage is presented second resistance with ambient atmosphere.Second resistance of comparable second air by-pass passage of first resistance of first air by-pass passage is big.
Preferably, first and/or second resistance can be determined by cross-sectional area and/or the length of first and/or second air by-pass passage.In other words, can be selected such that to be applied to by first air by-pass passage resistance ratios of the air that flows through described first air by-pass passage big by the resistance that second air by-pass passage is applied to the air that flows through described second air by-pass passage for the cross-sectional area of first and/or second air by-pass passage and/or length.In this way, the air ratio by first air by-pass passage descends by the bigger pressure of the air experience of second air by-pass passage.Therefore, can only use simple passive device, for example manage or conduit makes pressure height in pressure ratio first Fuel Tank in second Fuel Tank such as the air by-pass passage of sizing correspondingly.
According to another preferred embodiment, air pressure control system can be included at least one air filter in first and/or second air by-pass passage.The resistance that first and/or second resistance then will be at least in part be applied to the air by this air filter by air filter limits.Can make the air resistance of the air filter in first air by-pass passage bigger than the resistance of the air filter in second air by-pass passage.The resistance that is applied by filter can be adjusted by thickness and/or the density of the filter material that uses in corresponding filter.Using one or more passive components such as air filter to be adjusted to the pressure in first Fuel Tank lower than the pressure in second Fuel Tank is for the cheapness and the failure-free technology that fuel are transferred to first Fuel Tank from second Fuel Tank.
Alternatively or replenish ground, air pressure control system can comprise pressure device, air pump or regulate the control cock of the influx (influx) of forced air for example is to be used for that the pressure of second Fuel Tank is adjusted to the air pressure higher than the air pressure in first Fuel Tank.Such pressure device can also be determined to be activated when the passive components of air pressure control system can not be kept desired differential pressure by the pressure sensor in Fuel Tank, and described situation for example may take place when the air filter that leads to second Fuel Tank gets clogged.Such pressure device can similarly be used in the fuel transmission of long distance, for example from the fuel transmission of second Fuel Tank that is positioned at rear view of vehicle, or allow significant difference in height, if for example second Fuel Tank must be positioned to far below first Fuel Tank at vehicle.Obtainable forced air can be supplied as pressurized air source for described pressure device on truck.
According to another preferred embodiment, equalizing pipe can comprise first branch road and second branch road, and described first branch road is in order to supplying fuel to first Fuel Tank, and described second branch road is in order to from the second Fuel Tank suction of fuel.The end of first and/or second branch road can extend to the bottommost part of first and/or second Fuel Tank on gravity direction respectively.Preferably, second branch road of equalizing pipe can have distance second fuel tank bottom and be no more than 4cm, preferably is no more than the gap of 2cm.
Be arranged in the bottommost part of second Fuel Tank on gravity direction by the end with second branch road, almost whole volumes of the fluid in second Fuel Tank can transport out from second Fuel Tank via equalizing pipe, and this is because gravity is moved the fuel in second Fuel Tank bottommost part of second Fuel Tank on gravity direction to.Because will keeping, the end of second branch road until predetermined percentage only (for example is immersed in the fuel unit, total volume 5%, 1% or even 0.1%) fuel remain in second Fuel Tank, so the difference of pressure between first Fuel Tank and second Fuel Tank is pushed to fuel in first Fuel Tank by equalizing pipe.The end of first branch road is arranged on guarantees in the base section of first Fuel Tank on gravity direction that equalizing pipe is kept and be full of fuel that the fuel level in second Fuel Tank drops to the level of the end that is lower than second branch road.As the situation in so-called " siphonic effect ", the maintenance of the fuel in equalizing pipe can help to remedy the hydrostatic pressure equilibrium of forces at each place, end, and therefore promotes the transmission of fuel from second Fuel Tank to first Fuel Tank.
In addition, the tank equipment of another preferred embodiment can comprise recurrent canal, and described recurrent canal is used for fuel is supplied to from driving engine at least one Fuel Tank of first and/or second Fuel Tank.Aforementioned check valve can be arranged in the upstream of this recurrent canal.This check valve can provide the self-purging function, between first and second Fuel Tanks air is removed from equalizing pipe.Connection between fuel recurrent canal and the equalizing pipe can be constructed such that the fuel that enters equalizing pipe from recurrent canal flows towards first Fuel Tank, (where) can arrange (for example being driven by the petrolift that is connected to driving engine) suction tube herein, keeps siphonic effect during therefore travelling.
Tank equipment also can be constructed to guarantee by using the speed fuel that returns in recurrent canal, injector device and the check valve that all air are removed from equalizing pipe.Therefore, when the Fuel Tank of sky was recharged, tank equipment automatically purified himself and recovers its desired operation.For example, recurrent canal and equalizing pipe can converge at the injector device place, described injector device is supported fuel transmission to first Fuel Tank from second Fuel Tank, and wherein recurrent canal is attached to the high pressure side of eductor, and equalizing pipe is attached to the suction side of injector device.Similarly, recurrent canal can be attached to equalizing pipe in comprising the valve cell of injector device, and described injector device support is the transmission of the fuel to first Fuel Tank from second Fuel Tank, and wherein check valve and injector device are incorporated in the valve cell.
According to another preferred embodiment, tank equipment can comprise the suction tube from first Fuel Tank to driving engine, and to be used for supplying fuel to driving engine, wherein preferably, described suction tube is to supply with to unique fuel of driving engine.In addition, Fuel Tank equipment can comprise the fuel height sensor, to be used for the fuel level of sensing first Fuel Tank.Only extracting fuel from first Fuel Tank allows suction system to be simplified.Similarly, advantageously, only need in a Fuel Tank, to measure fuel level.
It should be noted that tank equipment preferably has the structure that allows to hold fluid displacement, particularly fuel and volume of air.First Fuel Tank and second Fuel Tank can form element separately and can be formed by metal or plastics.In first and second Fuel Tanks each all can have the volume magnitude of tens of, hundreds of or thousands of liters, and wherein the volume of first Fuel Tank can be greater than the volume of second Fuel Tank.In the Fuel Tank each all can comprise the container of making above one the material by identical or different, and wherein each container connects by pipeline.
Equalizing pipe can be pipe or conduit or comprise pipeline or rodding that wherein equalizing pipe or its any part can be formed by metal and/or plastics.In addition, the closed channel of the end of first branch road of the end that equalizing pipe can form second branch road from second Fuel Tank in first Fuel Tank, and/or can be connected to the pipeline that other does not lead to first Fuel Tank or second Fuel Tank.Flow and to be suppressed by the orientation of other pipeline with respect to gravity from second Fuel Tank to other so ducted fuel, or by one or more passive devices, for example suppressed by check valve or by the pipeline section that the part of leading to first Fuel Tank than equalizing pipe has a higher resistance to flow, and/or by one or more main drives for example by the pump of other ducted pressurized with fluid to the pressure that is higher than the fuel in second Fuel Tank suppressed.
Air pressure control system can only comprise the passive pressure control apparatus, only comprises the active pressure control apparatus or comprises initiatively and the combination of passive pressure control apparatus.
As mentioned above, the internal capacity of first and/or second Fuel Tank is communicated with ambient atmosphere or another air accumulator gas via first and/or second air by-pass passage.Therefore, unique path of being communicated with of the gas the equalizing pipe between aforesaid first and second Fuel Tanks between first and/or second fluid passage internal capacity that can constitute first and/or second Fuel Tank and ambient atmosphere and/or another air accumulator.
As mentioned above, first air by-pass passage can comprise first pipe that applies first resistance for the part or all of air by described first air by-pass passage, and second air by-pass passage can comprise second pipe that applies second resistance for the part or all of air by described second air by-pass passage.Can be adjusted by length and/or the cross-sectional area of corresponding pipe by the resistance that pipe applies.The cross-sectional area of first pipe can be second pipe smallest cross-section area less than 20%, less than 5% or even less than 1%.The length of first pipe can be greater than the length of second pipe.For example using one or more passive components of pipe that the pressure in first Fuel Tank is adjusted to the pressure that is lower than in second Fuel Tank is for the cheapness and the failure-free technology that fuel are transferred to first Fuel Tank from second Fuel Tank.
According to another preferred embodiment, first air by-pass passage and/or second air by-pass passage can comprise Dump valve, if dropping to respect to ambient atmosphere, the pressure in the first/the second Fuel Tank is lower than predetermined pressure, for example on the magnitude of 15mbar, then described Dump valve automatically exhausts air in the internal capacity of the first/the second Fuel Tank.In this way, the pressure in the first/the second Fuel Tank can be conditioned.In addition, can avoid undesirable big difference of pressure between first and second Fuel Tanks.When fuel extracted from the first/the second Fuel Tank, the pressure in the corresponding Fuel Tank reduced, unless the fluid that is under the higher pressure is discharged in the corresponding Fuel Tank.This pressure reduces feasible being difficult to gradually and extracts fuel from corresponding Fuel Tank.In addition, this pressure reduces the difference of pressure that can cause in the different fuel case.Have the fuel connection if having the Fuel Tank of different internal pressures, then this can cause fuel to be transferred to the lower Fuel Tank of pressure from the higher Fuel Tank of pressure.If this fuel transmission does not cause the equilibrium of pressure between the Fuel Tank, for example because fuel is extracted and/or because check valve has prevented the two-way flow of fuel, then this can cause the higher Fuel Tank of pressure to be emptied completely before the lower Fuel Tank of pressure begins remarkable emptying from the lower Fuel Tank of pressure regularly.Yet corresponding Fuel Tank is drained the simple measurement that can hinder for being included in the fluid volumes in the memory system with different speed.Usually, hope can determine to be included in the volume of the fuel in the tank equipment by the volume of measuring the fuel in the only Fuel Tank in the described Fuel Tank.
In another aspect, disclosure teaching be included in this open in the vehicle of the described tank equipment of other parts.Described vehicle can for example be truck, car, train driving engine or boats and ships, and described vehicle preferably includes combustion engine, and wherein tank equipment can constitute the fuel storage system of vehicle, for example is used for storage by the system of the fuel of the combustion engine of vehicle consumption.
According to another preferred embodiment, vehicle can be constructed so that combustion engine only extracts fuel via described first Fuel Tank from described second Fuel Tank.In addition, vehicle can be constructed so that from first Fuel Tank extract but the residual fuel that do not consumed by combustion engine turn back to first Fuel Tank and second Fuel Tank or only turn back to first Fuel Tank via for example aforesaid recurrent canal.Recurrent canal can for example be connected with the equalizing pipe fluid via check valve, and described check valve prevents that fluid from flowing in the direction away from first Fuel Tank.Adopt in two or more Fuel Tanks that the vehicle of tank equipment disclosed herein can be separated from one another physically with its fuel conservation.This makes it possible to the weight of distributing fuel in the mode of more wishing.This also can realize reducing the size of single Fuel Tank and the total volume that do not influence fuel storage system, does not namely influence the mileage of vehicle.The Fuel Tank of smaller szie can more easily be contained in the vehicle than big Fuel Tank.
On the other hand, the fuel in being stored in first Fuel Tank, can also use the fuel that is stored in second Fuel Tank, therefore can increase the mileage of vehicle.
First Fuel Tank and second Fuel Tank can be installed in the vehicle, make in the normal operation orientation of vehicle on level ground, first Fuel Tank roughly is in identical height place at the bottommost internal capacity on the gravity direction with second Fuel Tank bottommost internal capacity on gravity direction, or locate to locate at various height, this which kind of structure that preferably depends on first Fuel Tank and second Fuel Tank promotes liquid transmission to first Fuel Tank from second Fuel Tank.
The disclosure is also instructed for operating in the method that this discloses the oil tank of vehicle equipment of describing in other place.Method comprises the steps: to regulate the air pressure of first Fuel Tank and/or the air pressure of second Fuel Tank, makes the air pressure in the Fuel Tank of winning lower than the air pressure in second Fuel Tank.
As mentioned above, pressure regulating system can only use the passive pressure control apparatus, only use the combination of active pressure control apparatus or use active and passive pressure control apparatus to realize.Owing to pressure bigger in second Fuel Tank, so fluid can be transferred to first Fuel Tank by pipeline from second Fuel Tank reliably.
Preferably, via equalizing pipe and first Fuel Tank fuel is drawn into driving engine from second Fuel Tank.Because always extract fuel from first Fuel Tank, be enough so only fuel is filled into first Fuel Tank.The whole volumes that do not need the filling fuel case therein are with in the situation that arrives desired destination, and this has saved chaufeur must be filled into fuel trouble in the different Fuel Tanks.
First and/or second Fuel Tank can comprise discharge side, ball valve for example, described discharge side allows the internal capacity of first and/or second Fuel Tank and the fluid between the ambient atmosphere to be communicated with when tank equipment is in the operation orientation, and prevents that when tank equipment upset or over-tilting the internal capacity of first and/or second Fuel Tank and the fluid between the ambient atmosphere are communicated with.Described discharge side can be along the first/the second air by-pass passage setting.
In addition, the first/the second Fuel Tank can comprise Dump valve, if the pressure in the first/the second Fuel Tank surpasses predetermined pressure with respect to ambient atmosphere, then described Dump valve is discharged air automatically from the internal capacity of the first/the second Fuel Tank.This Dump valve helps to alleviate may be because the excessive pressure that for example is heated and expands and cause owing to the change of ambient temperature when cold fuel is filled in the Fuel Tank.Dump valve can be along the first/the second air by-pass passage setting.
Description of drawings
Novel feature of the present invention and the present invention are from being understood best in conjunction with appended description from accompanying drawing in relating to its structure and operating aspect thereof.Wherein:
Fig. 1 is the scheme drawing according to first embodiment of tank equipment of the present disclosure;
Fig. 2 is the scheme drawing according to second embodiment of tank equipment of the present disclosure;
Fig. 3 is the scheme drawing according to the 3rd embodiment of tank equipment of the present disclosure;
Fig. 4 is the scheme drawing according to the 4th embodiment of tank equipment of the present disclosure;
Fig. 5 is the scheme drawing according to the 5th embodiment of tank equipment of the present disclosure; And
Fig. 6 is the scheme drawing according to the 6th embodiment of tank equipment of the present disclosure.
The specific embodiment
Fig. 1 shows first embodiment according to tank equipment 100 of the present disclosure.Graphic tank equipment 100 comprises as first fuel tank 10 of main oil tank with as second fuel tank 20 of additional fuel tank in Fig. 1.First fuel tank 10 is depicted as and comprises fuel 11 and air 12.Second fuel tank 20 is depicted as similarly and comprises fuel 21 and air 22.
Air pressure control system 40 can be the part of ventilation system, and described ventilation system allows in each fuel tank 10,20 inside and the exchange of air between the ambient atmosphere.Air pressure control system 40 can be the part of fuel sender equally, and described fuel sender is transferred to fuel consuming device and/or is used for the level of each fuel tank 10 of metering, 20 fuel from each fuel tank 10,20.
As shown in FIG. 1, first air by-pass passage 60 comprises at least one throttle unit 64, described throttle unit 64 applies resistance to the some or all air by first air by-pass passage 60, for example makes the air that flows through first flow channel 60 experience (significantly) pressure drop.For example, throttle unit 64 can be to have the length of 30cm to 100cm and less than the internal diameter of the 2mm for example 1 or tubular portion of the internal diameter of 1.2mm.Described tubular portion can be equipped with the more pipeline section 61 of large diameter, makes all airborne or most of at least air that passes through first flow channel 60 by this tubular portion.Therefore throttle unit 64 constitutes the element of air pressure control system 40, namely helps to regulate the first fuel tank 10(or depends on the circumstances second fuel tank) in the pressure of air.
As substituting of the throttle unit 64 with fixing or predetermined diameter, also can use to have the long-pending throttle unit of variable cross-section.Therefore, described variable cross-section is long-pending can be adjusted by automatic or manual.
Second air by-pass passage 50 also can comprise one or more pipeline sections 51, and described one or more pipeline sections 51 form one or more appropriate sections of second air by-pass passage 50.Pipeline section 51 has the remarkable internal diameter that descends of pressure that does not cause by the air of pipeline section 51, for example has the internal diameter greater than 5mm.Because the different internal diameter of pipe 51 and pipe 61 is so the air pressure of second fuel tank is adjusted to environmental air pressure quickly than the air pressure of first fuel tank.Thus, set up the difference of pressure in first and second fuel tanks, described difference of pressure then allows second fuel tank and compares the higher degree that is emptied to from second fuel tank well known in the prior art.
In addition, second air by-pass passage 50 can comprise for example ball valve of air filter 52 and/or valve 53, and 52 pairs of part or all of air by second air by-pass passage 50 of described air filter filter, and described valve 53 is regulated flowing of air in second flow channel 50.Valve 53 can be configured to be in the normally open position, and if tank equipment 100 over-tiltings or the upset then close.Valve 53 can be configured to be in normally closed position equally, and if ambient pressure surpass the pressure of the air 22 in second fuel tank 20 with scheduled volume then open, or vice versa.
As shown in FIG. 1, tank equipment 100 supplies fuel to combustion engine 200.Particularly, combustion engine 200 comprises fuel suction tube 210, and described fuel suction tube extracts fuel and fuel 11 is fed to combustion engine 200 from the base section of first fuel tank 10.Fuel suction tube 210 can have the internal diameter that is roughly 9mm, and can comprise optional filter 211, and 211 pairs of fuel 11 that are drawn into the fuel suction tube 210 from first fuel tank 10 of described filter filter.
In addition, combustion engine 200 comprises recurrent canal 220, to be used for that unnecessary fuel is turned back to first fuel tank 10 from combustion engine 200.Recurrent canal 220 can have the roughly typical internal diameter of 6mm to 9mm.In illustrated embodiment, recurrent canal 220 supplies in the equalizing pipe 30, and can comprise the check valve such as the boiler check valve (not shown), and described check valve prevents that fluid from flowing to recurrent canal 220 from equalizing pipe 30.
Preferably, recurrent canal 220 and the injector device (not shown) in the valve cell (not shown) operationally are attached to equalizing pipe 30 mutual action.The flowing of fuel of returning that turns back to injector device from driving engine 200 is drawn into fuel first fuel tank 10 from second fuel tank 20.Injector device can for example be designed to venturi valve etc.
Other Fig. 2 to Fig. 5 shows the other preferred embodiment according to tank equipment 100 of the present disclosure.Except first air by-pass passage 60, the feature of graphic other embodiment is corresponding to first embodiment graphic in Fig. 1 and that describe hereinbefore in Fig. 2 to Fig. 5.
In Fig. 2 among the illustrated embodiment, first air by-pass passage 60 comprises the part or all of air by first air by-pass passage 60 is carried out filtered air filter 62.In the illustrated embodiment, first air by-pass passage 60 also comprises for example ball valve of (optionally) valve 63 in Fig. 2, and described valve 63 is regulated flowing of air in first air by-pass passage 60.Valve 63 can be configured to be in the normally open position, and if tank equipment 100 over-tiltings or the upset then close.Valve 63 can be configured to be in normally closed position equally, and if ambient pressure surpass the pressure of the air 12 in first fuel tank 10 with scheduled volume then open, or vice versa.Air filter 62 and valve 63 can or can not constitute the main element of air pressure control system 40.In other words, the resistance that is applied to the air that flows through first air by-pass passage 60 by air filter 62 and valve 63 can help total air flow resistance.Yet in the embodiment shown in Fig. 2, the proper drag of air filter 62 and valve 63 is suitable for not applying significant additional friction to air stream.To explain that hereinafter air filter 62 wherein and/or valve 63 help or constitute the embodiment of the air flow resistance of air pressure control system 40.
In the illustrated embodiment, the filter 62 that is configured to the part or all of air by first air by-pass passage 60 is filtered constitutes air pressure control system 40 in Fig. 3.As mentioned above, the resistance that is applied to the described part or all of air by air fluid passage 60 by filter can be adjusted by the thickness and/or the density that are adjusted at the filter material that uses in the filter 62.
Therefore, can be adjusted to the resistance that flow to the air in first fuel tank and be higher than flowing to the resistance of the air in second fuel tank.Therefore, with the air pressure equilibrium phase ratio in second fuel tank, the air pressure balance in first fuel tank is delayed, this then allow to compare with known tank equipment second fuel tank be emptied to higher degree.
In the illustrated embodiment, the valve that flows 63 that is adjusted in the air in first air by-pass passage 60 constitutes fluid pressure control system 40 in Fig. 4.Valve 63 can be configured for and be in normally closed position, and if ambient pressure surpass the pressure of the air 12 in first fuel tank 10 with scheduled volume then the pressure-modulation valve opened.When extracting fuel 11 from first fuel tank 10, the pressure in first fuel tank 10 will descend.Although this pressure decline in first fuel tank 10 can cause the difference of pressure between first fuel tank 10 and second fuel tank 20, this difference of pressure promotes fuel 21 from the transmission of second fuel tank, 20 to first fuel tanks 10, but this not controlled pressure decline in first fuel tank 10 can hinder or even prevent fully from the extraction fuel 11 of first fuel tank 10.Therefore, valve 63 is for example by opening the pressure of for example regulating with respect to ambient atmosphere in first fuel tank 10 when ambient pressure surpasses the pressure of the air 12 in first fuel tank 10 with scheduled volume.Valve 63 can be passive device, spring biasing Dump valve for example, can be main drive maybe, the servovalve that for example opens and closes in response to open/closed signal, described signal response is in from the signal of the pressure sensor (not shown) of corresponding location and generate.
On the other hand, valve 63(and valve 53) also can be suitable for opening under the situation of pressure above environmental air pressure and/or predetermined pressure threshold in first (the second) fuel tank.For example, fuel tank generates heat and/or expands owing to the change of ambient temperature if cold fuel is filled in the fuel tank, then too high air pressure can take place in fuel tank.
In Fig. 5 in the illustrated embodiment, help total air flow resistance in the air by-pass passage 60 as discuss in the aforementioned embodiment all or at least two throttle units.Therefore, first air by-pass passage 60 comprises above throttle unit 64 of instructing with reference to figure 1 and Fig. 2, above air filter 62 of instructing with reference to figure 3 and above valve 63 of instructing with reference to figure 4.Any or all air filters 62, valve 63 and throttle unit 64 can constitute the critical elements of air pressure control system 40, can help to regulate the pressure of the air 11 in first fuel tank 10.
In Fig. 6 among the illustrated embodiment, equalizing pipe 30 is between fuel tank 10,20 base section but not the side of being located thereon, and described equalizing pipe 30 also is provided with check valve 32.As equalizing pipe being arranged in substituting between the fuel tank 10,20, also equalizing pipe 30 can be arranged in fuel tank 10,20 belows.As in the aforementioned embodiment, allow fuel to return the recurrent canal that flow in first fuel tank 10 and can supply in the equalizing pipe 30.
Naturally, except or alternate figures 1 to Fig. 6 in instruct regulate via the pressure of first air by-pass passage 60, the instruction of Fig. 1 to Fig. 6 can be applied to regulate air pressure in second fuel tank via second air by-pass passage 50 equally.In addition, also the pressure of second fuel tank can be adjusted to the level higher than the air pressure in first fuel tank.This can for example realize by forced air being provided to second fuel tank, thus with the air pressure ACTIVE CONTROL in second fuel tank to than the high level of air pressure in environmental air pressure and/or first fuel tank.
Except graphic feature, the tank equipment of any accompanying drawing among Fig. 1 to Fig. 6 can comprise any above-described feature.In addition, any graphic feature can be revised as described above.
Though at these disclosure and description various embodiment of the present invention at length, be under the situation that does not break away from the spirit and scope of the present invention, to carry out various changes for structure of the present invention, operation and form with obvious for persons skilled in the art.Particularly, notice each feature of the present invention, even only can be combined in except for persons skilled in the art easily in any structure the obvious structure with the disclosed in combination feature of further feature of the present invention.Similarly, the use of odd number and plural number only is used for graphic purpose and is not understood to be restrictive.Except pointing out clearly, plural number can be substituted by odd number, and vice versa.
Reference numerals list
10 first fuel tanks, main oil tank
11 fuel
12 air
20 second fuel tanks, additional fuel tank
21 fuel
22 air
30 equalizing pipes
31 filters
32 boiler check valve
33 first branch roads
34 second branch roads
40 air pressure control systems
50 second air by-pass passages
51 pipes
52 air filters
53 valves
60 first air by-pass passages
61 pipes
62 air filters
63 valves
64 throttle units
100 tank equipments
200 combustion engines
210 fuel suction tubes
211 filters
220 recurrent canals
Claims (15)
1. one kind is used for the particularly tank equipment of the vehicle of truck (100), described tank equipment comprises at least the first Fuel Tank (10) and second Fuel Tank (20), described first Fuel Tank (10) is connected by equalizing pipe (30) with described second Fuel Tank (20), and described tank equipment comprises the check valve such as boiler check valve (32), described check valve is arranged in described at least two Fuel Tanks (10,20) in the described equalizing pipe (30) between, be used for to allow the flow direction from described second Fuel Tank (20) to described first Fuel Tank (10) and to stop in the opposite direction mobile
It is characterized in that,
Described tank equipment also comprises air pressure control system (40), described air pressure control system (40) is regulated the air pressure of described first Fuel Tank (10) and/or the air pressure of described second Fuel Tank (20), makes that the air pressure in described first Fuel Tank (10) is lower than the air pressure in described second Fuel Tank (20).
2. tank equipment according to claim 1, wherein, described pressure regulating system (40) comprising: first air by-pass passage (60), described first air by-pass passage (60) is connected described first Fuel Tank (10) with ambient atmosphere, and described first air by-pass passage (60) presents first resistance to the air by described first air by-pass passage (60); With second air by-pass passage (50), described second air by-pass passage (50) is connected described second Fuel Tank (20) with ambient atmosphere, and described second air by-pass passage (50) presents second resistance to the air by described second air by-pass passage (50), and described second resistance of described second air by-pass passage of described first resistance ratios (50) of wherein said first air by-pass passage (60) is big.
3. tank equipment according to claim 2, wherein, described first resistance and/or described second resistance are determined by cross-sectional area and/or the length of described first air by-pass passage and/or described second air by-pass passage.
4. according to claim 2 or 3 described tank equipments, wherein, described air pressure control system (40) also is included at least one air filter in described first air by-pass passage and/or described second air by-pass passage, and described first resistance and/or described second resistance are determined the resistance that the air by this air filter applies by described air filter.
5. according to each the described tank equipment in the aforementioned claim, wherein, described air pressure control system comprises pressure device, pump particularly is adjusted to the pressure of described second Fuel Tank (20) than the high air pressure of air pressure in described first Fuel Tank (10) being used for.
6. according to each the described tank equipment in the aforementioned claim, wherein, described equalizing pipe (32) is provided with first branch road (33) and second branch road (34), described first branch road (33) is in order to supply fuel to described first Fuel Tank (10), described second branch road (34) is in order to from second Fuel Tank (50) suction of fuel, wherein preferably, the end of described first branch road (33) and/or described second branch road (34) extends to the bottommost part on gravity direction of described first Fuel Tank and/or described second Fuel Tank respectively.
7. tank equipment according to claim 6, wherein, described second branch road (34) of described equalizing pipe (70) has and is no more than 4cm apart from the bottom of described second Fuel Tank, preferably is no more than the gap of 2cm.
8. according to each the described tank equipment in the aforementioned claim, also comprise recurrent canal (220), described recurrent canal (220) is used for fuel is supplied to described Fuel Tank (10 from described driving engine (200), 20) at least one Fuel Tank, wherein preferably, described check valve (32) is disposed in the upstream of described recurrent canal (220), and described recurrent canal (220) and described equalizing pipe (30) converge at the injector device place, the fuel transmission of described injector device support from described second Fuel Tank (20) to described first Fuel Tank (10), wherein said recurrent canal (220) is attached to the high pressure side of described injector device, and described equalizing pipe (30) is attached to the suction side of described injector device.
9. according to each the described tank equipment in the aforementioned claim, it is characterized in that, described first Fuel Tank (10) provides the suction tube from described first Fuel Tank (10) to described driving engine (200) (210), to be used for supplying fuel to described driving engine (200), wherein preferably, only the described suction tube (210) by being connected to described first Fuel Tank (10) to described driving engine (200) fuel supplying.
10. according to each the described tank equipment in the aforementioned claim, it is characterized in that described first Fuel Tank (10) is provided with fuel level sensor, described fuel level sensor is used for the fuel level of described first Fuel Tank of sensing (10).
11. each the described tank equipment according in the aforementioned claim is characterized in that, described first Fuel Tank (10) has than the big volume of described second Fuel Tank (20).
12. according to each the described tank equipment in the aforementioned claim, it is characterized in that, described recurrent canal (220) is attached to equalizing pipe (30) in comprising the valve cell of injector device, the fuel transmission of described injector device support from described second Fuel Tank (20) to described first Fuel Tank (10), wherein said check valve (32) and described injector valve are integrated in the described valve cell.
13. one kind comprises the vehicle according to each the described tank equipment (100) in the aforementioned claim.
14. vehicle according to claim 13, described vehicle also comprise combustion engine (200), wherein said combustion engine only extracts fuel via described first Fuel Tank (10) from described second Fuel Tank (20).
15. one kind is used for operation according to the method for each described oil tank of vehicle equipment of claim 1 to 12, described method comprises the steps: to regulate the air pressure of described first Fuel Tank (10) and/or the air pressure of described second Fuel Tank (20), makes that the air pressure in described first Fuel Tank (10) is lower than the air pressure in described second Fuel Tank (20).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SE2010/000312 WO2012087185A1 (en) | 2010-12-21 | 2010-12-21 | A tank arrangement and method for operating a vehicle tank arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103269892A true CN103269892A (en) | 2013-08-28 |
Family
ID=46314213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800708867A Pending CN103269892A (en) | 2010-12-21 | 2010-12-21 | A tank arrangement and method for operating a vehicle tank arrangement |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2655114A4 (en) |
| CN (1) | CN103269892A (en) |
| AU (1) | AU2010365849B2 (en) |
| BR (1) | BR112013015836A2 (en) |
| WO (1) | WO2012087185A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106704061A (en) * | 2015-11-17 | 2017-05-24 | 石家庄益科创新科技有限公司 | Engine electric control oil supply device for model airplane and unmanned aerial vehicle |
| CN107215204A (en) * | 2017-07-24 | 2017-09-29 | 江铃汽车股份有限公司 | Automobile double fuel tank connectivity structure |
| CN107490420A (en) * | 2017-07-04 | 2017-12-19 | 宝沃汽车（中国）有限公司 | The abnormal detection method of oil mass display and device |
| CN107642440A (en) * | 2016-07-20 | 2018-01-30 | 豆德旗 | Oil way of diesel vehicle leads to self compensating system |
| CN108252834A (en) * | 2016-12-26 | 2018-07-06 | 丰田自动车株式会社 | Fuel tank system |
| CN108301948A (en) * | 2018-03-16 | 2018-07-20 | 山东临工工程机械有限公司 | Linkage type major-minor fuel tank oil supply system |
| CN110785557A (en) * | 2017-06-22 | 2020-02-11 | 沃尔沃卡车集团 | Method for controlling fuel tank device |
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| WO2018017531A1 (en) * | 2016-07-19 | 2018-01-25 | Cummins Filtration Ip, Inc. | Fluid additive dosing system and method |
| CN110520322B (en) * | 2017-04-17 | 2023-03-10 | 沃尔沃卡车集团 | System and method for balancing fuel level among multiple fuel tanks |
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| CN106704061A (en) * | 2015-11-17 | 2017-05-24 | 石家庄益科创新科技有限公司 | Engine electric control oil supply device for model airplane and unmanned aerial vehicle |
| CN107642440A (en) * | 2016-07-20 | 2018-01-30 | 豆德旗 | Oil way of diesel vehicle leads to self compensating system |
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2010365849B2 (en) | 2015-12-24 |
| WO2012087185A1 (en) | 2012-06-28 |
| EP2655114A4 (en) | 2016-03-30 |
| AU2010365849A1 (en) | 2013-06-13 |
| EP2655114A1 (en) | 2013-10-30 |
| BR112013015836A2 (en) | 2017-06-27 |
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Application publication date: 20130828 |