CN108884969B - Tank container for cryogenic fuel and system for fuel injection - Google Patents

Tank container for cryogenic fuel and system for fuel injection Download PDF

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Publication number
CN108884969B
CN108884969B CN201780021967.XA CN201780021967A CN108884969B CN 108884969 B CN108884969 B CN 108884969B CN 201780021967 A CN201780021967 A CN 201780021967A CN 108884969 B CN108884969 B CN 108884969B
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China
Prior art keywords
chamber
fuel
tank container
tank
container according
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Application number
CN201780021967.XA
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Chinese (zh)
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CN108884969A (en
Inventor
H·布兰德斯
M·施密特
M·库拉斯
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Robert Bosch GmbH
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Robert Bosch GmbH
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Classifications

    • 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
    • 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
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0166—Shape complex divided in several chambers
    • 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
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0171—Shape complex comprising a communication hole between chambers
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0391—Thermal insulations by vacuum
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • 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
    • 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
    • F17C2223/03—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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0114—Propulsion of the fluid with vacuum injectors, e.g. venturi
    • 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
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a tank container (10) for a cryogenic fuel (1), having an inner tank (11) in which a first part chamber (21) for storing the fuel (1) and a second part chamber (22) is formed as an equalization chamber, wherein the two part chambers (21,22) are separated from one another by means of a boundary wall (18), wherein at least one first connection (25) between the two part chambers (21,22) is formed in the boundary wall (18), which enables pressure equalization of a gaseous component of the fuel (1) from the first part chamber (21) into the second part chamber (22), and having a device (30) for delivering the fuel (1) from the inner tank (11).

Description

Tank container for cryogenic fuel and system for fuel injection
Technical Field
The present invention relates to a tank container for cryogenic fuel. The invention also relates to a system for injecting gaseous fuel into an intake tract or a combustion chamber of an internal combustion engine using the tank container according to the invention.
Background
A container is known from US 8650887B 2. Tank vessels are known for storing or storing fuel in a liquid state at low temperatures. In this case, temperatures of, for example, about-150 ℃ or less are involved in the case of using hydrogen or natural gas. The operating pressure in the interior of such a tank is typically, but not exclusively, approximately between 3bar and 5 bar. In particular, such a tank is suitable for use as a reservoir for motor vehicle fuel, wherein the tank is a component of a system for injecting gaseous fuel into an intake line or a combustion chamber of an internal combustion engine. In particular, the tank container known from the prior art has the advantage that it has an inner tank which is divided into two part-chambers by means of a dividing wall. The first part chamber, which usually has a larger volume, is used for storing the cooled or liquid fuel. Typically, the first part-chamber is not completely filled with liquid fuel, in order to be able to expand the fuel when heating takes place, for example via the wall of the inner tank, in such a way that the fuel can overflow into the second part-chamber of the inner tank, which serves as an equalization chamber. For this purpose, provision is made in the prior art for a boundary wall which is coupled between the two part-chambers via a connection or opening in which the non-return valve is arranged. The non-return valve in particular also prevents a backflow or an entry of gas from the second part chamber in the direction of the first part chamber. In order to be able to heat the fuel stored in the first part-chamber as little as possible, the inner tank of the tank container is surrounded by an outer jacket, wherein the gap between the inner tank and the outer jacket is evacuated in order to avoid or at least reduce heat conduction from the environment in the direction of the inner tank. For the purpose of conveying liquid fuel from the inner tank, the known tank container also has a pump which is connected via a suction line to the liquid fuel in the first part-chamber of the inner tank. In summary, the advantage of the known tank container for cryogenic fuels is that the second part chamber of the inner tank is used only for compensating temperature fluctuations or only for achieving the possibility of a volume overflow of the fuel from the first part chamber into the second part chamber.
Furthermore, it is also known from the prior art to supply fuel from a tank container by means of a pressure difference. The pressure difference is generated, for example, by a heating coil. In this case, the liquid fuel is removed from the first part-chamber, evaporated and returned into the first part-chamber. As a result, the pressure in the first partial chamber rises, since the fluid or fuel expands. The resulting pressure difference thus enables fuel to be delivered from the first part chamber. In the known systems, the entire tank container is often placed under pressure due to the connection formed in the boundary wall between the two partial chambers.
Disclosure of Invention
Starting from the prior art shown, the invention is based on the following tasks: such a tank container for cryogenic fuels according to the prior art makes it possible to transport the fuel from the tank container with low outlay in terms of plant technology. In particular, alternative systems for fuel delivery are suitable for enabling the use of an overpressure source present in systems for achieving gas injection of fuel in motor vehicles or the use of return lines present there under pressure for delivering fuel.
According to the invention, this object is achieved in the case of a tank container for cryogenic fuels.
The invention is based on the following idea: in this way, the second partial chamber, which is otherwise only used for volume or pressure equalization in the prior art, is used to actively convey fuel, so that the second partial chamber is brought to an increased pressure relative to the first partial chamber. This increased pressure is used, as will be explained in more detail below, for delivering fuel from the first and/or second part chamber of the inner tank.
In a preferred embodiment, an advantageous development of the tank container according to the invention for cryogenic fuels is specified.
In a first embodiment of the invention, it is provided that the device for delivering fuel is arranged in a region of the second part-chamber of the inner tank which is designed to receive condensed fuel. In other words, this means that the device for delivering fuel delivers fuel which is condensed in the second part chamber via the boundary wall between the two part chambers into the second part chamber. This configuration of the invention has the following advantages: only a single connection between the two part-chambers is required, which enables the gaseous component of the fuel to overflow from the first part-chamber into the second part-chamber. Such an embodiment is particularly advantageous or applicable in the case of low volumetric flows, since the proportion of gas which enters the second part chamber via the boundary wall and condenses in the second part chamber is limited and is dependent on external factors, in particular heating and/or pressure increase in the second part chamber.
In a further or alternative embodiment of the invention, it can be provided that the device for supplying fuel is connected to the first part chamber of the inner tank by means of a line which traverses the boundary wall. In this case, the fuel is removed or delivered from the region of the first part-chamber. In this case, the outlet line in the first part-chamber is arranged in particular in the bottom region of the part-chamber, so that a (only) liquid-phase fuel supply is ensured.
In particular, it is preferably provided that the fuel supply pump, which is designed as an injection pump, is operated with the second partial chamber at a higher pressure than the first partial chamber.
Alternatively, however, it is also possible to remove or supply not the liquid cooling fuel from the tank container, but rather the gaseous component or the gaseous part of the fuel, which overflows from the first part chamber into the second part chamber, in particular via the boundary wall. In this case, it is advantageous if the device for delivering the fuel is arranged at least with its suction connection in the region of the second part-chamber which is designed to receive or store the gaseous component of the fuel. The gaseous component of the fuel is thereby directly sucked in by a correspondingly designed delivery pump.
It is of interest or necessary from a safety point of view to limit the overpressure prevailing in the second part-chamber to such an extent that damage to the tank container is precluded. For this purpose, it can be provided in particular that the second part-chamber of the inner tank can be connected at least indirectly to an overpressure valve in order to limit the gas pressure in the second part-chamber.
It is essential in all the different embodiments of the invention that the overflow of the fuel in liquid or gaseous form always takes place only in the direction from the first part-chamber to the second part-chamber. In order to ensure this, a non-return valve is arranged in the boundary wall between the two partial chambers and, if appropriate, in a line which traverses the boundary wall, which non-return valve blocks the flow path in the direction from the second partial chamber to the first partial chamber.
The invention also comprises a system for achieving fuel injection of gaseous fuel into the intake tract or combustion chamber of an internal combustion engine using the tank container of the invention described so far. In this case, according to the invention, the device for delivering fuel from the tank container is used to deliver fuel into a storage volume connected to the at least one gas valve. In other words, this means that the device for delivering fuel from the tank container is used to ensure the necessary or desired system pressure in the system. For this purpose, the storage volume is configured, for example, in the form of a rail or the like, from which the at least one gas valve can be supplied with gaseous fuel.
It is also particularly preferred if the overpressure source for supplying the second part-chamber with an overpressure is formed by a gas return formed by at least one gas valve and/or a storage volume. This has the following advantages: the pressure increase in the second partial chamber can be achieved with low outlay in terms of plant engineering using gases which are generated, for example, during a load change or during a cooling phase of a possible external pump during a rail exhaust.
Further advantages, features and details of the invention result from the following description of a preferred embodiment and from the drawing.
Drawings
In the sole figure, the figure shows a schematic view of a system for achieving gas injection of gaseous fuel into the intake duct or combustion chamber of an internal combustion engine, using a gas valve.
Detailed Description
In this figure a system 100 is shown for supplying gaseous fuel to the intake duct 5 or combustion chamber of an internal combustion engine. By way of example, but not limitation, a gaseous fuel is understood to be a fuel gas, such as hydrogen or natural gas.
The system 100 has a tank container 10 for storing fuel 1. In particular, the fuel 1 is cooled or stored at such a low temperature in the tank container 10 that it is present in liquid form.
The tank container 10 comprises an inner tank 11 which is completely enclosed with a spacing by an outer jacket 12. The intermediate space 13 between the inner tank 11 and the outer jacket 12 can be evacuated, for example, in a manner known per se and therefore not essential to the invention, in order to insulate the inner tank 11 from the environment or at least to reduce the heat transfer from the environment in the direction of the inner tank 11. The liquid fuel 1 can be fed into the tank container 10 via the feed line 15.
The inner tank 11 has a boundary wall 18, which extends, for example, perpendicularly to the drawing plane of the drawing and divides the inner tank 11 into two partial chambers 21, 22. The boundary wall 18 is arranged in the inner box 11 in such a way that the volume of the first part-chamber 21 is greater than the volume of the second part-chamber 22. The first part-chamber 21 serves to store or store the fuel 1, while the second part-chamber 22 serves in particular to achieve a pressure or volume exchange when the fuel 1 located in the first part-chamber 21 heats up and expands in this case. For this purpose, it is provided that a connection 25 with an integrated check valve 26 is formed in the boundary wall 18 in a section of the boundary wall 18 above the filling level 23 of the (liquid) fuel 1 in the first part chamber 21. The check valve 26 is arranged in such a way that the gaseous components of the fuel 1 can pass from the first part-chamber 21 into the second part-chamber 22, but cannot do so in the opposite direction.
In addition, the liquid fuel 1 is present in the first part-chamber 21 in the bottom region of the inner tank 11, in which a further connection 28 is arranged in the boundary wall 18, which is designed in the form of a line 29. The line 29 is connected to a device 30 for delivering fuel from the tank vessel 10 into the storage volume 50 (in particular the rail) of the system 100. In particular, the device 30 is designed in the form of a jet pump 31. It is ensured by a further non-return valve 32 in the connection between the device 30 and the storage volume 50 that the fuel 1 cannot flow back from the storage volume 50 in the direction of the device 30.
In the drawing, it is also shown that the gaseous components of the fuel 1 which overflow from the first part-chamber 21 into the second part-chamber 22 via the connection 25 in the boundary wall 18 condense in the second part-chamber 22 in such a way that the device 30 is flooded with the liquefied fuel 1 in the second part-chamber 22. The filling level 33 of the fuel 1 in the second part chamber 22 is lower than the filling level 23 in the first part chamber 21.
An overpressure line 35 opens into the second part chamber 22, which is coupled, for example, to a gas valve 40, with the interposition of an overpressure valve 36 and a further non-return valve 37. The gas valve 40 is in the exemplary embodiment shown an overpressure source 45, by means of which, during the blowing in of gas by the gas valve 40, the unnecessary gas or fuel 1 under high pressure can be introduced back into the second part chamber 22 in order to increase the pressure in the second part chamber 22. In particular, the increased pressure prevailing in the second part chamber 22 can be used for conveying the fuel 1 prevailing in the second part chamber 22 or the first part chamber 21 in the direction of the storage volume 50 by means of the device 30.
Additionally, in the drawing, a further return line 41 is drawn which connects the storage volume 50 with a further check valve 37. Therefore, the gas can also be returned into the second part chamber 22 by discharging the gas under high pressure from the storage volume 50 into the overpressure line 35 via the return line 41 in order to increase the pressure in the second part chamber 22. The storage volume 50 therefore also constitutes an overpressure source 45.
The tank container 10 described so far may be modified or varied in a multiplicity of ways without departing from the inventive concept. The inventive concept is that the second partial chamber 22 present in the tank container 10, which is usually (exclusively) used to achieve a pressure equalization with the first partial chamber 21, is brought to an increased pressure in such a way that fuel can thereby be delivered from the tank container 10.

Claims (11)

1. Tank container (10) for a low-temperature fuel (1), having an inner tank (11) in which a first part chamber (21) for storing the fuel (1) and a second part chamber (22) as an equalization chamber are formed, wherein the first part chamber (21) and the second part chamber (22) are separated from one another by means of a boundary wall (18), wherein at least one first connection (25) between the first part chamber (21) and the second part chamber (22) is formed in the boundary wall (18), which enables a pressure equalization of the gaseous components of the fuel (1) from the first part chamber (21) into the second part chamber (22), and having a device (30) for delivering the fuel (1) from the inner tank (11),
characterized in that the second part chamber (22) can be connected to an overpressure source (45) arranged outside the inner tank (11) for increasing the gas pressure in the second part chamber (22), and in that the device (30) for delivering fuel (1) is designed for delivering the fuel (1) on the basis of the overpressure created in the second part chamber (22) by the overpressure source (45).
2. Tank container according to claim 1, characterized in that the means (30) for conveying fuel (1) are arranged in a region of the second part-chamber (22) configured for receiving condensed fuel (1).
3. Tank container according to claim 1 or 2, characterised in that the means (30) for conveying fuel (1) are connected to the first part-chamber (21) by means of a line (29) which traverses the boundary wall (18).
4. Tank container according to claim 2, characterized in that the means (30) for delivering fuel (1) have a jet pump (31).
5. Tank container according to claim 1, characterized in that the means (30) for delivering fuel (1) are arranged in a region of the second part-chamber (22) configured for receiving a gaseous component of the fuel (1).
6. A tank container according to claim 1 or 2, characterised in that the second part-chamber (22) is at least indirectly connectable with an overpressure valve (36) in order to limit the gas pressure in the second part-chamber (22).
7. A tank container according to claim 1 or 2, characterised in that the inner tank (11) is surrounded with a spacing by an outer jacket (12) and that the intermediate space (13) between the inner tank (11) and the outer jacket (12) is evacuated.
8. Tank container according to claim 1 or 2, characterized in that a non-return valve (26) is arranged in the boundary wall (18), which non-return valve blocks a flow path of the gaseous component of the fuel (1) or of the liquid fuel (1) from the second part-chamber (22) in the direction of the first part-chamber (21).
9. A tank container according to claim 8, characterised in that the non-return valve (26) is arranged in a line (29) which traverses the boundary wall (18).
10. System (100) for the injection of gaseous fuel (1) into an intake line (5) or a combustion chamber of an internal combustion engine, with a tank container (10) constructed according to any one of claims 1 to 9, wherein the device (30) is used for conveying fuel (1) from the tank container (10) into a storage volume (50) connected to at least one gas valve (40).
11. System according to claim 10, characterized in that the storage volume (50) and/or the gas valve (40) constitute an overpressure source (45) which is connected to the second part chamber (22) of the inner tank (11) by means of an overpressure line (35).
CN201780021967.XA 2016-04-06 2017-03-15 Tank container for cryogenic fuel and system for fuel injection Active CN108884969B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016205719.7A DE102016205719A1 (en) 2016-04-06 2016-04-06 Cryogenic fuel tank and fuel injection system
DE102016205719.7 2016-04-06
PCT/EP2017/056102 WO2017174310A1 (en) 2016-04-06 2017-03-15 Tank container for cryogenic fuels and system for injecting fuel

Publications (2)

Publication Number Publication Date
CN108884969A CN108884969A (en) 2018-11-23
CN108884969B true CN108884969B (en) 2021-08-20

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Application Number Title Priority Date Filing Date
CN201780021967.XA Active CN108884969B (en) 2016-04-06 2017-03-15 Tank container for cryogenic fuel and system for fuel injection

Country Status (4)

Country Link
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CN (1) CN108884969B (en)
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