SE543450C2 - An arrangement for facilitating evacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicle - Google Patents

An arrangement for facilitating evacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicle

Info

Publication number
SE543450C2
SE543450C2 SE1851231A SE1851231A SE543450C2 SE 543450 C2 SE543450 C2 SE 543450C2 SE 1851231 A SE1851231 A SE 1851231A SE 1851231 A SE1851231 A SE 1851231A SE 543450 C2 SE543450 C2 SE 543450C2
Authority
SE
Sweden
Prior art keywords
tank
cab
pipe
boil
bottle configuration
Prior art date
Application number
SE1851231A
Other languages
Swedish (sv)
Other versions
SE1851231A1 (en
Inventor
Gustav Jönsson
Mahan Khoshnevis
Sivert Eriksson
Original Assignee
Scania Cv Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE1851231A priority Critical patent/SE543450C2/en
Priority to DE112019004395.1T priority patent/DE112019004395T5/en
Priority to PCT/SE2019/050901 priority patent/WO2020076209A1/en
Publication of SE1851231A1 publication Critical patent/SE1851231A1/en
Publication of SE543450C2 publication Critical patent/SE543450C2/en

Links

Classifications

    • 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
    • B60K15/01—Arrangement of fuel conduits
    • B60K15/013—Arrangement of fuel conduits of gas conduits
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
    • B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • 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
    • B60K2015/03523—Arrangements of the venting tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/142—Heavy duty trucks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0364—Pipes flexible or articulated, e.g. a hose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/031—Dealing with losses due to heat transfer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/031—Treating the boil-off by discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0171—Trucks

Abstract

The present invention relates to an arrangement (A) for facilitating evacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicle (1). The vehicle (1) has a tiltable cab (2) being movably connected to the vehicle chassis (3) in a non-tilted position. The fuel system has a chassis-mounted tank (10) for providing fuel to the engine of the vehicle (1), and a cab-mounted boil-off pipe (20). The arrangement (A) is configured to allow evaporated gas from the tank (10) to be evacuated through the boil-off pipe (20) in the nontilted position. The arrangement (A) comprises a downwardly open bottle configuration (30) as a lower end connection of the boil-off pipe (20) and a tank pipe member (40) attached to the tank (10) for conveying evaporated gas from the tank (10). The bottle configuration (30) and the tank pipe member (40) are configured so that, when the cab (2) is moved from the tilted to the non-tilted position, a portion of the tank pipe member (40) is introduced into the bottle configuration (30) through its lower opening and positioned in the bottle configuration (30) so that gas evaporated from the tank (10) is introduced into the bottle configuration (30) via the tank pipe member (40) and evacuated through the boil-off pipe (20).The present invention also relates to a vehicle.

Description

AN ARRANGEMENT FOR FACILITATING EVACUATING EVAPORATEDLIQUEFIED GAS OF A LIQUEFIED GAS FUEL SYSTEM OF A VEHICLE TECHNICAL FIELD The invention relates to an arrangement for facilitating evacuating evaporatedIiquefied gas of a Iiquefied gas fuel system of a vehicle. The invention alsorelates to a vehicle.
BACKGROUND ART Alternative fuels such as natural gas and biogas are being introduced invehicles such as heavy vehicles. For this purpose fuel systems for compressednatural gas, CNG and compressed biogas CBG and fuel systems for Iiquefied natural gas LNG and Iiquefied biogas LBG are being developed.
Systems for Iiquefied gas, i.e. LNG and LBG, require handling of relatively lowtemperatures, e.g. -130 degree Celsius at 10 bar for LNG, requiring certainconduits fortransporting the Iiquefied natural gas and a certain tankfor housingthe fuel. When the vehicle is standing still and the engine is not operating thepressure in the tank will increase due to temperature increase in the tank.Therefore the system for Iiquefied gas is provided with a relief valve whichaccording to an embodiment is set to open at 16 barfor evacuating evaporated gas.
The fuel tank/tanks for Iiquefied gas systems are usually arranged along andin connection to the vehicle frame. The evaporated gas is configured to beevacuated via a so called boil-off pipe connected to the fuel tank. The gasneeds to be evacuated at a certain height. The boil-off pipe is further notallowed to project laterally or upwardly from the vehicle.
For trucks the boil-off pipe is therefore usually arranged behind the cab of thetruck. For trucks having a tiltable cab, i.e. cabs arranged to be tilted forwardly,the boil-off pipe is according to a variant arranged to be connected to a verticalmember arranged in connection to and at a distance from the rear side of thecab to avoid influence from the tilting.
Such a solution, however, takes up space behind the cab which othen/visecould be used for overhang or semi-trailer in order to optimize the length of theload carrying part of the vehicle.
Therefor it is desired to attach the boil-off pipe to the rear side of the cab. Bythus arranging the boil-off pipe to the rear side of a tiltable cab an arrangementfor facilitating evacuating evaporated liquefied gas of the liquefied gas fuelsystem taking the fact that the boil-off pipe is moved relative to the tank whenthe cab is tilted.
Arrangements forfacilitating automatic connection between cab mounted boil-off pipe and chassis mounted tank when cab is moved from tilted to non-tilted positon are known.
There is however a need to provide an arrangement for further facilitatingevacuating evaporated liquefied gas of a liquefied gas fuel system of a vehiclehaving a tiltable cab.
OBJECTS OF THE INVENTION An object of the present disclosure is to provide an arrangement for facilitatingevacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicle.
Another object of the present invention is to provide a vehicle comprising such an arrangement.
SUMMARY OF THE INVENTION These and other objects, apparent from the following description, are achievedby an arrangement and a vehicle as set out in the appended independentclaims. Preferred embodiments of the arrangement are defined in appendeddependent claims.
Specifically an object of the invention is achieved by an arrangement forfacilitating evacuating evaporated Iiquefied gas of a Iiquefied gas fuel systemof a vehicle. The vehicle has a tiltable cab and a vehicle chassis, the cab beingmovably connected to the vehicle chassis in a non-tilted position of the cab.The fuel system has a chassis-mounted Iiquefied gas fuel tank for providingfuel to the engine of the vehicle, and a boil-off pipe. Evaporated gas is arrangedto be evacuated from the tank via the boil-off pipe at a certain tank pressure.The boil-off pipe is attached to the rear side of the cab. The arrangement isconfigured to allow evaporated gas from the tank to be evacuated through theboil-off pipe in the non-tilted position. The arrangement comprises adownwardly open bottle configuration as a lower end connection of the boil-offpipe and a tank pipe member attached to the tank for conveying evaporatedgas from the tank. The bottle configuration and the tank pipe member areconfigured so that, when the cab is moved from the tilted to the non-tiltedposition, a portion of the tank pipe member is introduced into the bottleconfiguration through its lower opening and positioned in the bottleconfiguration so that gas evaporated from the tank is introduced into the bottleconfiguration via the tank pipe member and evacuated through the boil-off pipe.
Hereby the cab-mounted boil-off pipe and the chassis-mounted Iiquefied gasfuel tank may, when the cab is moved from a tilted to a non-tilted position,easily and automatically be brought into a position in which gas evaporatedfrom the tank is evacuated through the boil-off pipe. The solution with thedownwardly open bottle configuration as a lower end connection of the boil-offpipe configured to receive a tank pipe member makes it easy to design the size of the bottom opening of the bottle configuration sufficiently large forallowing the tank pipe member to be introduced into the lower opening of thebottle configuration independent of certain movement of the cab and thusbottle configuration relative to the chassis and thus tank pipe member andcertain movement of the introduction portion of the tank pipe member relativeto the bottle configuration. By thus providing a downwardly open bottleconfiguration as a lower end connection of the boil-off pipe adapted to receivethe tank pipe member, contact between bottle configuration and tank pipemember may be avoided, which reduces risk of fatigue and wear in connectionto cab movements in the non-tilted position of the cab. Hereby a relativelysimple and cost efficient design forfacilitating evacuating evaporated liquefiedgas of a liquefied gas fuel system of a vehicle from the chassis-mounted liquefied gas fuel tank through the cab-mounted boil-off pipe.
According to an embodiment of the arrangement the bottle configuration andthe tank pipe member are configured so that, in the non-tilted position, duringcab and thus bottle configuration movement, the bottle configuration is allowed to move freely relative to the portion of the tank pipe member positioned in the bottle configuration.
Ihe portion of the tank pipe member, when positioned in the bottle configuration, is positioned so that thereis no contact between the portion of the tank pipe member and the bottleconfiguration, irrespective of cab movements. Hereby the risk of fatigue andwear in connection to cab movements in the non-tilted position of the cab maybe reduced.
According to an embodiment of the arrangement the bottle configuration hasan upper tapered portion. Hereby evacuation of gas from the tank pipe memberto the boil-off pipe is facilitated.
According to an embodiment of the arrangement the bottle configuration has a lower cylindrical portion. Hereby contact of the portion of the tank pipe member introduced into the bottle configuration may be efficiently avoidedindependent of movement of the bottle configuration relative to the portion ofthe tank pipe member introduced into the bottle configuration.
Specifically an object of the invention is achieved by a vehicle comprising an arrangement as set out herein.
BRIEF DESCRIPTION OF THE DRAWINGS For a better understanding of the present disclosure reference is made to thefollowing detailed description when read in conjunction with the accompanyingdrawings, wherein like reference characters refer to like parts throughout the several views, and in which: Fig. 1a schematically illustrates a side view of a vehicle with a tiltable cab in anon-tilted position, the vehicle having an arrangement for facilitatingevacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicleaccording to an embodiment of the present disclosure; Fig. 1b schematically illustrates a side view of the vehicle in fig. 1a with the cab in a tilted position; Fig. 2 schematically illustrates a perspective view of boil-off pipe and tank pipemember of the liquefied gas fuel system and the arrangement for facilitatingevacuating evaporated liquefied gas of the liquefied gas fuel system for a non- tilted position according to an embodiment of the present disclosure; Fig. 3 schematically illustrates a side view of the arrangement in fig. 1a with abottle configuration and a portion of the tank pipe member introduced into thebottle configuration according to an embodiment of the present disclosure; and Fig. 4 schematically illustrates a perspective view of the bottle configuration ofthe arrangement in fig. 1a according of an embodiment of the presentdisclosure.
DETAILED DESCRIPTION Hereinafter the term “Iiquefied gas” refers to Iiquefied natural gas, LNG, orIiquefied biogas, LBG.
Hereinafter the term “Iiquefied gas fuel system” refers to a fuel system for Iiquefied natural gas, LNG, or a fuel system for Iiquefied biogas, LBG.
Hereinafter the term “flexible hose” refers to hoses configured to transport fluidfor a Iiquefied gas fuel system, the hose being bendable to a certain degreeand having a certain flexibility so as to facilitate taking up relative movements of a vehicle cab relative to a Iiquefied gas fuel tank.
Hereinafter the term “boil-off pipe” refers to a pipe, preferably a rigid pipe,configured to evacuate evaporated gas from a Iiquefied gas fuel tank of aIiquefied gas fuel system. The pipe is according to an embodiment made ofstainless steel. The boil-off pipe could alternatively be flexible such as a flexiblehose. The boil-off pipe may have any suitable cross section comprising circularcross section or other polygonal cross section such as e.g. square crosssection.
Hereinafter the term “tank pipe member” refers to any suitable pipe or hose ora combination thereof. The tank pipe member may have any suitable crosssection comprising circular cross section or other polygonal cross section such as e.g. square cross section.
Fig. 1a schematically illustrates a side view of a vehicle 1 with a tiltable cab 2in a non-tilted position; and fig. 1b schematically illustrates a side view of thevehicle 1 in fig. 1a with the cab 2 in a tilted position.
The vehicle has an arrangement A for facilitating evacuating evaporatedIiquefied gas of a Iiquefied gas fuel system I of a vehicle according to anembodiment of the present disclosure.
The vehicle 1 has a vehicle chassis 3. The cab 2 is tiltable relative to the vehiclechassis 3. The cab 2 is movably connected to the vehicle chassis in a non-tilted position of the cab 2.
The exemplified vehicle 1 is a heavy vehicle in the shape ofa truck. The vehicle1 is fuelled by means of the Iiquefied gas fuel system I for operating the engineof the vehicle. The vehicle 1 may be any suitable truck configured to bearranged with a load carrying part behind the cab 2. Such a vehicle may be atruck arranged to carry an overhang behind the cab 2 or a semi-trailer truckcomprising a towing truck and a semi-trailer coupled to the towing truck behindthe cab 2 via a fifth wheel.
The cab 2 is tiltable between a non-tilted position, illustrated in fig. 1a, in whichthe cab is upright and the vehicle may be driven, and a tilted position, illustratedin fig. 1b. ln the non-tilted position, the cab 2 is locked by means of a cablocking arrangement comprising cab locking members, not shown. A lockingarrangement is thus provided having a cab locking portion of the cab 2 and achassis locking portion of the chassis 3 for locking the cab to the chassis in thenon-tilted position of the cab. The cab locking portion is connected to a cabbody of the cab via a spring configuration for allowing movement of the cabbody relative to the cab locking portion, not shown here.
The cab 2 may be tilted in any suitable way by any tiltable means. The cab 2is according to an embodiment tiltable by means of a cab tilting operationarrangement 50 shown in fig. 1a. The cab tilting operation arrangement 50comprises a pump unit 52 and at least one hydraulic piston unit 54 for tiltingthe cab 2, hydraulically connected to the pump unit 52 via a hydraulic line.
The vehicle thus comprises a Iiquefied gas fuel system I. The Iiquefied gas fuelsystem I comprises a chassis-mounted Iiquefied gas fuel tank 10 for providingfuel to the engine of the vehicle 1.
The Iiquefied gas fuel system I comprises a boil-off pipe 20 through whichevaporated gas from the tank 10 is configured to be evacuated at a certaintank pressure. The boil-off pipe 20 is configured to be connected to the fueltank 10. The Iiquefied gas fuel system I for Iiquefied gas is provided with arelief valve, not shown, which is set to open at the certain pressure forevacuating evaporated gas from the tank 10 via the boil-off pipe 20. Thepressure may be any suitable pressure. The pressure is according to anembodiment about 16 bar. The pressure may depend on the size of the tank.
The vehicle 1 illustrated in fig. 1a-b is a simplified illustration. The vehiclechassis of the vehicle 1 normally comprises a vehicle frame comprising a leftlongitudinal vehicle beam and a right longitudinal vehicle beam, not shown.The Iiquefied gas fuel tank 10 is arranged in connection to the vehicle frame.The Iiquefied gas fuel tank 10 may according to an embodiment comprise aleft Iiquefied gas fuel tank part arranged in connection to a left longitudinalvehicle beam and a right Iiquefied gas fuel tank part arranged in connection tothe right longitudinal beam of the chassis of the vehicle 1.
The boil-off pipe 20 is attached to the rear side 2a of the cab 2. The boil-offpipe 20 is arranged to be fixedly attached to the rear side of the cab 2 by meansof any suitable fastening means, e.g. any suitable joints such as one or morescrewjoints, see fig. 2. The boil-off pipe 20 is thus arranged to be tilted togetherwith the cab 2 when the cab 2 is tilted to the tilted position.
The boil-off pipe 20 has an upper side 20a with an opening through which theevaporated gas is arranged to be evacuated and an opposing lower side forreceiving evaporated gas from the tank 10.
The vehicle 1 comprises an arrangement A for facilitating evacuatingevaporated Iiquefied gas of the Iiquefied gas fuel system I of the vehicle 1. Theboil-off pipe 20 is configured to be attached to the rear side of the cab 2.
The arrangement A is configured to allow evaporated gas from the tank 10 tobe evacuated through the boil-off pipe 20 in the non-tilted position of thevehicle 1.
The arrangement A comprises a downwardly open bottle configuration 30 asa lower end connection of the boil-off pipe 20.
The bottle configuration 30 together with the boil-off pipe 20 is thus arrangedto be tilted together with the cab 2 when the cab 2 is tilted to the tilted position.The downwardly open bottle configuration 30 as a lower end connection of theboil-off pipe 20 is thus arranged to move together with any cab movementcomprising movement between tilted and non-tilted positon of the cab 2 andmovements of the cab 2 relative to the chassis 3 in the non-tilted positon of thecab 2.
According to an embodiment the bottle configuration 30 is attached to an endportion of the boil-off pipe 20. The end portion of the boil-off pipe 20 constitutingthe lower end portion of the boil-off pipe 20 when the boil-off pipe 20 ismounted to the rear side of the cab 2. Thus, in that embodiment the bottleconfiguration 30 constitutes a separate part configured to be attached to the lower end portion of the boil-off pipe 20.
According to an alternative embodiment the bottle configuration 30 constitutesan integrated portion of the boil-off pipe 20. Thus, in that embodiment the bottleconfiguration constitutes a lower end portion of the boil-off pipe 20, when the boil-off pipe is mounted to the rear side of the cab 2.
The arrangement A further comprises a tank pipe member 40 attached to thetank 10 for conveying evaporated gas from the tank 10. The tank pipe member40 may be connected to the tank 10 in any suitable way. The tank pipe member may be any suitable pipe or hose or a combination thereof. The tank pipemember 40 may be connected to the chassis 1 of the vehicle 1, see fig. 2. Atleast a portion of the tank pipe member 40 comprising the portion 42 has acertain rigidity so as to prevent or at least reduce/minimize movement of the portion 42. Thus, the portion 42 of the tank pipe member has a certain stiffness.
The bottle configuration 30 and the tank pipe member 40 are configured sothat, when the cab 2 is moved from the tilted position, illustrated in fig. 1b, tothe non-tilted position, illustrated in fig. 1a, a portion 42 of the tank pipemember 40 is introduced into the bottle configuration 30 through its loweropening 32 and positioned in the bottle configuration 30 so that gas evaporatedfrom the tank 10 is introduced into the bottle configuration 30 via the tank pipemember 40 and evacuated through the boil-off pipe 20.
According to an embodiment of the arrangement A the bottle configuration 30and the tank pipe member 40 are configured so that, in the non-tilted position,illustrated in fig. 1a, during cab and thus bottle configuration movement, thebottle configuration 30 is allowed to move freely relative to the portion 42 ofthe tank pipe member 40 positioned in the bottle configuration 30. The bottleconfiguration 30 is thus allowed to move freely relative to the portion 42 of thetank pipe member 40 positioned in the bottle configuration 30 in all horizontaldirection and vertical direction and combinations thereof. The bottleconfiguration 30 and also the tank pipe member 40, or at least the portion 42of the tank pipe member 40 configured to be positioned in the bottleconfiguration 30, are thus dimensioned so that the is thus allowed to movefreely relative to the portion 42 of the tank pipe member 40 positioned in the bottle configuration 30.
According to an embodiment of the arrangement A the portion 42 of the tankpipe member 40, when positioned in the bottle configuration 30, i.e. the innerspace of the bottle configuration 30, is positioned so that there is no contactbetween the portion 42 of the tank pipe member 40 and the bottle configuration30, irrespective of cab 2 movements.
According to an embodiment of the arrangement the bottle configuration hasan upper tapered portion.
According to an embodiment of the arrangement the bottle configuration has a lower cylindrical portion.
Fig. 2 schematically illustrates a perspective view of a boil-off pipe 20 and tankpipe member 40 of the liquefied gas fuel system and the arrangement A forfacilitating evacuating evaporated liquefied gas of the liquefied gas fuel systemfor a non-tilted position according to an embodiment of the present disclosure.
As illustrated in fig. 1a-b, the boil-off pipe 20 is configured to be attached to therear side of the cab of the vehicle, not shown here. The boil-off pipe 20 isarranged to be fixedly attached to the rear side of the cab by means of anysuitable fastening means. According to this embodiment the fastening meanscomprises an upper fastening arrangement F1, an intermediate fasteningarrangement F2 and a lower fastening arrangement F3. The upper fasteningarrangement F1 is configured to provide an attachment of the boil-off pipe 20to the rear side of the cab in connection to an upper portion of the boil-off pipe20. The intermediate fastening arrangement F2 is configured to provide anattachment of the boil-off pipe 20 to the rear side of the cab in connection toan intermediate portion of the boil-off pipe 20. The lower fasteningarrangement F3 is configured to provide an attachment of the boil-off pipe 20to the rear side of the cab in connection to a lower portion of the boil-off pipe20.
The boil-off pipe 20 has an upper side 20a with an opening through which theevaporated gas is arranged to be evacuated and an opposing lower side for receiving evaporated gas from the tank via the tank pipe member 40.
The tank pipe member 40, i.e. the portion 42 of the tank pipe member has anupper end side 40a through which the evaporated gas is arranged to beevacuated into the bottle configuration 30 for evacuation through the boil-off pipe, when the portion 42 of the tank pipe member 40 has been introduced into the bottle configuration 30. The tank pipe member 40 has an opposing end40b configured to be connected to the liquefied gas fuel tank.
As illustrated in fig. 2, the tank pipe member 40 is configured to be attached tothe vehicle chassis, not shown here. The tank pipe member 40 is arranged tobe fixedly attached to the vehicle chassis, directly or via any suitable memberfixed to the vehicle chassis, by means of any suitable fastening means.According to this embodiment the fastening means comprises a tank pipemember fastening arrangement F4. The tank pipe member fasteningarrangement F4 is configured to attach the tank pipe member 40 relativelyclose to the portion 42 of the tank pipe member 40 so as to minimize movementof the portion 42 of the tank pipe member 40. Hereby it is facilitated to keepthe portion 42 of the tank pipe member 40 straight and directed such that it issecurely introduced into the lower opening 32 of the bottle configuration 30when the cab is moved from the tilted to the non-tilted position.
Fig. 3 schematically illustrates a side view of the arrangement A in fig. 1a witha bottle configuration 30 and a portion 42 of the tank pipe member 40introduced into the bottle configuration 30 according to an embodiment of thepresent disclosure.
The portion 42 of the tank pipe member 40 has thus been introduced into thelower opening 32 of the bottle configuration 30.
According to this embodiment the bottle configuration 30 has an upper taperedportion 34 so as to facilitate evacuating of gas from the tank pipe member 40,i.e. the portion 42 of the tank pipe member 40, to the boil-off pipe.
According to this embodiment the bottle configuration 30 has a lowercylindrical portion 36 so as to facilitate avoiding contact of the portion 42 of thetank pipe member 40 introduced into the bottle configuration 30 independentof movement of the bottle configuration 30 relative to the portion 42 of the tankpipe member 40 introduced into the bottle configuration 40. The cylindricalportion 36 has a height H. The height H of the cylindrical portion 36 of the bottle configuration 30 is dimensioned so as to secure that the portion 42 of the tankpipe member 40 remains in the cab-mounted bottle configuration 30independent of cab and thus bottle configuration movements, e.g. verticalmovements/movements in the longitudinal direction of the bottle configuration30, relative to the portion 42 of chassis mounted tank pipe member 40. Thus,the length of the portion 42 of the tank pipe member 40 may vary due to suchmovements of the bottle configuration in the non-tilted position of the cab.
The cylindrical portion 36 has a diameter D1. The tank pipe member 40, i.e.the portion 42 of the tank pipe member 40 configured to be introduced into thelower opening 32 of the bottle configuration 30 has a diameter D2.
The diameter D1 of the cylindrical portion 36 of the bottle configuration 30 anddiameter D2 of the portion 42 are dimensioned so that the size of the bottomopening 32 of the bottle configuration 30 is sufficiently large for allowing theportion 42 of the tank pipe member to be introduced into the lower opening 32of the bottle configuration 30 independent of certain movement of the cab andthus bottle configuration 30 relative to the chassis and thus tank pipe member40 and certain movement of the introduction portion 42 of the tank pipemember relative to the bottle configuration 30.
The diameter D1 of the cylindrical portion 36 of the bottle configuration 30 anddiameter D2 of the portion 42 are dimensioned so that contact of the portion42 of the tank pipe member 40 introduced into the bottle configuration may beefficiently avoided independent of movement of the bottle configuration 30relative to the portion 42 of the tank pipe member 40 introduced into the bottleconfiguration 30.
Fig. 4 schematically illustrates a perspective view of the bottle configuration 30of the arrangement in fig. 1a according of an embodiment of the presentdisclosure. The bottle configuration 30 according to this embodiment thus hasa lower opening 32, an upper tapered portion 34 and a lower cylindrical portion 36. The cylindrical portion 36 has a height H and a diameter D1.
The foregoing description of the preferred embodiments of the presentdisclosure has been provided for the purposes of illustration and description.lt is not intended to be exhaustive or to limit the invention to the precise formsdisclosed. Obviously, many modifications and variations will be apparent topractitioners skilled in the art. The embodiments were chosen and describedin order to best explain the principles of the invention and its practicalapplications, thereby enabling others skilled in the art to understand theinvention for various embodiments and with the various modifications as are suited to the particular use contemplated.

Claims (5)

1. An arrangement (A) for facilitating evacuating evaporated liquefied gas ofa liquefied gas fuel system (l) of a vehicle (1), the vehicle having a tiltable cab(2) and a vehicle chassis (3), the cab being movably connected to the vehiclechassis (3) in a non-tilted position of the cab, the fuel system having a chassis-mounted liquefied gas fuel tank (10) for providing fuel to the engine of thevehicle (1), and a boil-off pipe (20), wherein evaporated gas is arranged to beevacuated from the tank (10) via the boil-off pipe (20) at a certain tankpressure, the boil-off pipe (20) being attached to the rear side (2a) of the cab(2), wherein the arrangement (A) is configured to allow evaporated gas fromthe tank (10) to be evacuated through the boil-off pipe (20) in the non-tiltedposition, the arrangement (A) comprising a downwardly open bottleconfiguration (30) as a lower end connection of the boil-off pipe (20) and a tankpipe member (40) attached to the tank (10) for conveying evaporated gas fromthe tank (10), wherein the bottle configuration (30) and the tank pipe member(40) are configured so that, when the cab (2) is moved from the tilted to thenon-tilted position, a portion (42) of the tank pipe member (40) is introducedinto the bottle configuration (30) through its lower opening (32) and positionedin the bottle configuration (30) so that gas evaporated from the tank (10) isintroduced into the bottle configuration (30) via the tank pipe member (40) andevacuated through the boil-off pipe (20) ettereeteršzetçš än that? tne portion M2?ef the tank pipe rnember (40), when pesštiened än the bottle configuration (30), šs ttesitiened se that there ts ne contact bettweeaw the :tentan (423 of the tank pipe member (40) and the battle cottfiquratšon (30). irrespectixfe af cab WÛVGYÛGFÉÉS,
2. An arrangement according to claim 1,wherein the bottle configuration (30)and the tank pipe member (40) are configured so that, in the non-tilted position,during cab and thus bottle configuration movement, the bottle configuration(30) is allowed to move freely relative to the portion (42) of the tank pipemember (40) positioned in the bottle configuration (30). |1o arrangement according to any of claims f-åg, wherein thebottle configuration (30) has an upper tapered portion (34). ”fl- gl \\\\\\\\\\\\\\\\\\\\\\ vAn arrangement according to any of claims 1-43, wherein the bottle configuration (30) has a lower cylindrical portion (36). claims 1-551.
SE1851231A 2018-10-09 2018-10-09 An arrangement for facilitating evacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicle SE543450C2 (en)

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Application Number Priority Date Filing Date Title
SE1851231A SE543450C2 (en) 2018-10-09 2018-10-09 An arrangement for facilitating evacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicle
DE112019004395.1T DE112019004395T5 (en) 2018-10-09 2019-09-23 Arrangement for facilitating evacuation of vaporized liquid gas of a liquid gas fuel system of a vehicle
PCT/SE2019/050901 WO2020076209A1 (en) 2018-10-09 2019-09-23 An arrangement for facilitating evacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicle

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SE1851231A SE543450C2 (en) 2018-10-09 2018-10-09 An arrangement for facilitating evacuating evaporated liquefied gas of a liquefied gas fuel system of a vehicle

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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
US10969046B2 (en) * 2016-06-09 2021-04-06 Volvo Truck Corporation Gas venting pipe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007060496A1 (en) * 2005-11-28 2007-05-31 Renault Trucks A holding arrangement for a wire harness
WO2018048337A1 (en) * 2016-09-09 2018-03-15 Scania Cv Ab An arrangement for mounting a boil-off pipe of a liquefied gas fuel system to a vehicle
WO2018048334A1 (en) * 2016-09-09 2018-03-15 Scania Cv Ab An arrangement for mounting a boil-off pipe of a liquefied gas fuel system to a vehicle
SE540241C2 (en) * 2016-09-09 2018-05-08 Scania Cv Ab An arrangement for mounting a gas pipe to a vehicle
SE540242C2 (en) * 2016-09-09 2018-05-08 Scania Cv Ab An arrangement for mounting a boil-off pipe of a liquefied gas fuel system to a vehicle
WO2018117927A1 (en) * 2016-12-21 2018-06-28 Scania Cv Ab An arrangement for mounting a boil-off pipe of a liquefied gas fuel system to a vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10969046B2 (en) * 2016-06-09 2021-04-06 Volvo Truck Corporation Gas venting pipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007060496A1 (en) * 2005-11-28 2007-05-31 Renault Trucks A holding arrangement for a wire harness
WO2018048337A1 (en) * 2016-09-09 2018-03-15 Scania Cv Ab An arrangement for mounting a boil-off pipe of a liquefied gas fuel system to a vehicle
WO2018048334A1 (en) * 2016-09-09 2018-03-15 Scania Cv Ab An arrangement for mounting a boil-off pipe of a liquefied gas fuel system to a vehicle
SE540241C2 (en) * 2016-09-09 2018-05-08 Scania Cv Ab An arrangement for mounting a gas pipe to a vehicle
SE540242C2 (en) * 2016-09-09 2018-05-08 Scania Cv Ab An arrangement for mounting a boil-off pipe of a liquefied gas fuel system to a vehicle
WO2018117927A1 (en) * 2016-12-21 2018-06-28 Scania Cv Ab An arrangement for mounting a boil-off pipe of a liquefied gas fuel system to a vehicle

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