WO2024012780A1 - Système de réservoir de gaz combustible - Google Patents

Système de réservoir de gaz combustible Download PDF

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Publication number
WO2024012780A1
WO2024012780A1 PCT/EP2023/065670 EP2023065670W WO2024012780A1 WO 2024012780 A1 WO2024012780 A1 WO 2024012780A1 EP 2023065670 W EP2023065670 W EP 2023065670W WO 2024012780 A1 WO2024012780 A1 WO 2024012780A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
fuel gas
gas tank
shut
spring
Prior art date
Application number
PCT/EP2023/065670
Other languages
German (de)
English (en)
Inventor
Hans-Christoph Magel
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2024012780A1 publication Critical patent/WO2024012780A1/fr

Links

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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves

Definitions

  • the invention relates to a fuel gas tank system with the features of the preamble of claim 1.
  • Mobile fuel gas tank systems with at least one fuel gas tank for storing fuel gas, for example hydrogen or natural gas, are known.
  • the fuel gas tanks are usually designed as high-pressure tanks.
  • a high pressure tank always requires a shut-off valve to seal off the tank when the vehicle is not in use.
  • Both are usually integrated into a tank unit that can be connected to a fuel gas tank of a fuel gas tank system, with the tank unit being attached as an attachment to the outside of the fuel gas tank.
  • the present invention is based on the object of reducing the installation space requirement of a fuel gas tank system.
  • a fuel gas tank system with at least one fuel gas tank and a tank unit is proposed.
  • a shut-off valve is integrated into the tank unit, which has a magnetic tactor for acting on a lifting magnet armature acted upon by the spring force of a spring.
  • the magnet armature forms a valve member for releasing and closing a valve seat or it is connected to a valve member.
  • the tank unit is integrated into an outlet of the fuel gas tank and the shut-off valve of the tank unit projects into a storage volume of the fuel gas tank, so that at least the magnetic actuator of the shut-off valve is accommodated in the storage volume.
  • the tank unit By integrating the tank unit into the outlet of the fuel gas tank, it does not require any additional installation space. This means that the space required for the fuel gas tank system is reduced.
  • the shut-off valve of the tank unit By integrating the tank unit into the outlet of the fuel gas tank, the shut-off valve of the tank unit is also optimally protected from external influences. Furthermore, the number of high-pressure sealing points can be reduced.
  • the magnetic actuator of the shut-off valve Since at least the magnetic actuator of the shut-off valve is accommodated in the storage volume of the fuel gas tank, it does not have to be designed to be pressure-tight and/or gas-tight. The number of sealing points can thereby be further reduced.
  • the proposed fuel gas tank system is preferably used in a fuel cell vehicle or in a gas vehicle.
  • the valve seat of the shut-off valve is formed by a valve body which is movable relative to the valve member in order to release and close a further valve seat.
  • This enables the shut-off valve to be opened in multiple stages.
  • the valve member In a first stage, the valve member is first lifted out of the first valve seat using magnetic force.
  • the second valve seat opens.
  • the opening of the second valve seat is supported by the fact that the fuel gas flowing out through the first valve seat causes pressure equalization in the first stage, so that essentially only the spring force of the spring has to be overcome to open the second valve seat.
  • Both seats can therefore be opened with just one magnetic coil and with a comparatively low magnetic force. This means that a comparatively small magnetic coil can be used so that the The installation space requirement of the shut-off valve and thus the tank unit is reduced. This means that installation space is saved.
  • opening the second valve seat ensures a sufficiently large opening cross section.
  • the further valve seat preferably has a seat diameter D2 that is larger than a seat diameter D1 of the first valve seat. In this way, an even larger opening cross section can be provided. Since pressure equalization already occurs in the first stage when the shut-off valve is opened in multiple stages, increasing the seat diameter of the second valve seat essentially has no influence on the magnetic force required for opening. The magnetic coil therefore does not have to be made larger.
  • valve member and the valve body are preferably arranged coaxially and biased by the spring in the direction of the valve seats. To close the two valve seats, only one spring is required, so that additional installation space is saved.
  • valve body is accommodated in a valve chamber into which an inlet that can be connected to a storage volume of the fuel gas tank opens from the radial direction. A direct connection between the valve chamber and the storage volume can then be established via the inlet.
  • the tank unit forms the further valve seat and at least one gas line for removing fuel gas and/or for filling it with fuel gas.
  • valve member and the valve body are guided into one another and can be coupled via an annular collar which is formed on an end section of the valve member received in the valve body.
  • a driver function can be implemented via the ring collar.
  • the ring collar arrives after a partial stroke of the Valve member for opening the first valve seat to rest on the valve body, so that it is lifted out of the second valve seat by the valve member.
  • the second valve seat can be opened like the first valve seat using the magnetic force of the magnetic actuator.
  • the nested arrangement of the valve member and valve body helps to save additional space, particularly in the axial direction.
  • valve body is biased in the direction of the valve member by a further spring, the spring force of which is smaller than that of the first spring.
  • the valve body is relieved of the spring force of the spring acting in the closing direction.
  • pressure is equalized via the opened first valve seat, so that - with a time delay - the valve body is lifted out of the second valve seat by means of the additional spring.
  • the second valve seat is opened by means of the spring force of another spring.
  • both valve seats are closed. If the magnetic actuator is energized, a magnetic field is built up, the magnetic force of which acts on the magnetic armature. The magnet armature moves in the direction of the magnet actuator, whereby the valve member is lifted out of the first valve seat and the first valve seat opens. Fuel gas flowing out through the first valve seat causes a pressure equalization, so that the second valve seat can be opened with little force (magnetic force or spring force) with a time delay. This means that a larger opening cross-section is available, which enables a sufficient flow of fuel gas even at low storage pressure. To close the shut-off valve, the current supply to the solenoid coil is stopped, so that the spring returns the valve member and the valve body to their valve seats.
  • the fuel gas tank system according to the invention shown in the figure comprises a tank unit 16, which is integrated into a fuel gas tank 13 of the fuel gas tank system, specifically in the area of a bottleneck-like outlet 15 of the fuel gas tank 13.
  • a tank unit 16 By integrating the tank unit 16 into the fuel gas tank 13, installation space can be saved, so that the installation space requirement of the fuel gas tank system according to the invention decreases.
  • the integration of the tank unit 16 into the fuel gas tank 13 is made possible by the compact structure of the tank unit 16.
  • the tank unit 16 includes a shut-off valve 1, which serves to remove fuel gas from a storage volume 14 of the fuel gas tank 13.
  • a first gas line 17 is integrated into the tank unit 16.
  • the storage volume 14 of the fuel gas tank 13 can be filled with fuel gas via a further gas line 18 of the tank unit 16 arranged parallel thereto.
  • the shut-off valve 1 of the tank unit 16 shown in the figure is arranged at one end of the tank unit 16 so that it protrudes into the storage volume 14 of the fuel gas tank 13.
  • a magnetic actuator 2 for actuating the shut-off valve 1 is surrounded by storage pressure or high pressure, so that it does not have to be sealed pressure-tight or gas-tight to the outside.
  • a sealing ring 9 only needs to be inserted in the area of an electrical connection line 12, which serves to connect the magnetic actuator 2 to an external power source and is led to the outside via the tank unit 16.
  • shut-off valve 1 accommodated in the fuel gas tank 13 is optimally protected from external influences.
  • the magnetic actuator 2 of the shut-off valve 1 acts on a lifting magnet armature 4, which is connected to a bolt-shaped valve member 6.
  • the magnet armature 4 and the valve member 6 are biased towards a valve seat 5 by the spring force of a spring 3.
  • the magnetic actuator 2 has an annular magnetic coil 2.1 which partially surrounds the magnet armature 4 and is accommodated in an outer pole body 2.2. If the magnetic coil 2.1 is energized, a magnetic field, the magnetic force of which moves the magnet armature 4 including the valve member 6 in the direction of the magnetic actuator 2.
  • the valve seat 5 opens. Since the valve seat 5 has a comparatively small seat diameter D1, only a small magnetic force is required to open it.
  • the valve seat 5 is formed by a valve body 7, which has a bore 7.2 for this purpose.
  • An end section 6.1 of the valve member 6 is inserted into the valve body 7 via a further bore 7.1.
  • an annular collar 6.2 is formed, which comes into contact with the valve body 7 after a partial stroke of the valve member 6.
  • the valve body 7 is then carried along and thereby lifted by another valve seat 8.
  • This has a seat diameter D2 that is significantly larger than the seat diameter D1 of the first valve seat 5. Nevertheless, the magnetic force of the magnetic actuator 2 is sufficient to lift the valve body 7 out of the second valve seat 8, since essentially only the spring force of the spring 3 has to be overcome.
  • fuel gas flows out of a valve chamber 10, which is connected to the storage volume 14 via an inlet 11, into the gas line 17, so that pressure equalization is achieved.
  • a further spring (not shown) can also be provided, by means of which the valve body 7 is biased in the direction of the valve member 6.
  • the opening of the second valve seat 8 is then not effected with the aid of the magnetic force of the magnetic actuator 2, but rather by means of the spring force of the further spring.
  • the valve member 6 and the valve body 7 can be made simpler in this case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne un système de réservoir de gaz combustible ayant au moins un réservoir de gaz combustible (13) et une unité de réservoir (16), une soupape d'arrêt (1) étant intégrée dans l'unité de réservoir (16), la soupape d'arrêt (1) comprenant un actionneur magnétique (2) pour agir sur une armature magnétique (4), qui est sollicitée par la force de ressort d'un ressort (3), peut effectuer un mouvement de course et forme un élément de soupape (6), ou est reliée à un élément de soupape (6), pour ouvrir et fermer un siège de soupape (5). Selon l'invention, l'unité de réservoir (16) est intégrée dans une sortie (15) du réservoir de gaz combustible (13), et la soupape d'arrêt (1) de l'unité de réservoir (16) fait saillie dans un volume de stockage (14) du réservoir de gaz combustible (13) de telle sorte qu'au moins l'actionneur magnétique (2) de la soupape d'arrêt (1) est logé dans le volume de stockage (14).
PCT/EP2023/065670 2022-07-15 2023-06-12 Système de réservoir de gaz combustible WO2024012780A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022207249.9A DE102022207249A1 (de) 2022-07-15 2022-07-15 Brenngastanksystem
DE102022207249.9 2022-07-15

Publications (1)

Publication Number Publication Date
WO2024012780A1 true WO2024012780A1 (fr) 2024-01-18

Family

ID=86899127

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/065670 WO2024012780A1 (fr) 2022-07-15 2023-06-12 Système de réservoir de gaz combustible

Country Status (2)

Country Link
DE (1) DE102022207249A1 (fr)
WO (1) WO2024012780A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020096212A1 (en) * 2001-01-09 2002-07-25 Akira Yamada High pressure gas supplying system
US20030066836A1 (en) * 2001-09-19 2003-04-10 Samtech Corporation High-pressure tank apparatus
US7337798B2 (en) * 2003-08-28 2008-03-04 Toyota Jidosha Kabushiki Kaisha Gas supply apparatus
US20090014089A1 (en) * 2006-03-06 2009-01-15 Toyota Jidosha Kabushiki Kaisha Valve, Valve Controller, and Fuel Cell System
US8413951B2 (en) * 2006-03-02 2013-04-09 Kabushiki Kaisha Kawasaki Precision Machinery Valve device
KR101407015B1 (ko) * 2012-06-04 2014-06-12 영도산업 주식회사 유체 제어용 밸브 어셈블리
US20140239207A1 (en) * 2013-02-26 2014-08-28 Kawasaki Jukogyo Kabushiki Kaisha Valve device
US20220042652A1 (en) * 2018-12-13 2022-02-10 Robert Bosch Gmbh Method for operating a tank device for storing compressed fluids

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020096212A1 (en) * 2001-01-09 2002-07-25 Akira Yamada High pressure gas supplying system
US20030066836A1 (en) * 2001-09-19 2003-04-10 Samtech Corporation High-pressure tank apparatus
US7337798B2 (en) * 2003-08-28 2008-03-04 Toyota Jidosha Kabushiki Kaisha Gas supply apparatus
US8413951B2 (en) * 2006-03-02 2013-04-09 Kabushiki Kaisha Kawasaki Precision Machinery Valve device
US20090014089A1 (en) * 2006-03-06 2009-01-15 Toyota Jidosha Kabushiki Kaisha Valve, Valve Controller, and Fuel Cell System
KR101407015B1 (ko) * 2012-06-04 2014-06-12 영도산업 주식회사 유체 제어용 밸브 어셈블리
US20140239207A1 (en) * 2013-02-26 2014-08-28 Kawasaki Jukogyo Kabushiki Kaisha Valve device
US20220042652A1 (en) * 2018-12-13 2022-02-10 Robert Bosch Gmbh Method for operating a tank device for storing compressed fluids

Also Published As

Publication number Publication date
DE102022207249A1 (de) 2024-01-18

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