Tank device with a valve device

Patent metadata

Field	Value
Publication number	US-12181102-B2
Application number	US-202118245318-A
Country	US
Kind code	B2
Filing date	Aug 16, 2021
Priority date	Sep 23, 2020
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A tank device for storing a gaseous medium includes a valve device and a tank, the valve device includes a valve housing with a pilot valve element movable by a solenoid coil. The pilot valve element interacts with a first seal seat. A main valve element is arranged in the valve housing and, in order to open and close a through-opening, interacts with a second seal seat formed as a conical shoulder on the valve housing. A throttle channel is formed between the valve housing and an integrally molded shaping of the main valve element, which integrally molded shaping interacts with a second seal seat to open and close the through-opening, and said throttle channel has a conical widening against a direction of the second seal seat, whereby a throttle effect is provided, the valve device being openable in a direction of the tank when the solenoid coil is energized.

First claim

The invention claimed is:

1. A tank device ( 1 ) for storing a gaseous medium comprising a valve device ( 100 ) and a tank ( 200 ), wherein the valve device ( 100 ) comprises a valve housing ( 102 ), in which valve housing ( 102 ) a pilot valve element ( 24 ), which can be moved along a longitudinal axis ( 101 ) of the valve device ( 100 ), is arranged, which pilot valve element ( 24 ) interacts with a first seal seat ( 18 ) for opening and closing a first through-opening ( 20 ) and thus forms a pilot valve ( 240 ), wherein the valve device ( 100 ) comprises a solenoid coil ( 32 ) operable to move the pilot valve element ( 24 ) along the longitudinal axis ( 101 ), wherein a main valve element ( 12 ) is arranged in the valve housing ( 102 ), which main valve element ( 12 ) interacts with a second seal seat ( 6 ) for opening and closing a second through-opening ( 8 ) and thus forms a main valve ( 120 ), wherein the second seal seat ( 6 ) is configured as a conical shoulder ( 36 ) on the valve housing ( 102 ), wherein between the valve housing ( 102 ) and an integrally molded shaping ( 37 ) of the main valve element ( 12 ), which integrally molded shaping ( 37 ) interacts with the second seal seat ( 6 ) to open and close the second through-opening ( 8 ), a throttle channel ( 38 ) is formed, which throttle channel ( 38 ) comprises a conical widening towards the second through-opening ( 8 ), as a result of which a throttling effect is formed, wherein the valve device ( 100 ) can be opened in a direction of the tank ( 200 ) when the solenoid coil ( 32 ) is energized.

2. The tank device ( 1 ) according to claim 1 , wherein the second through-opening ( 8 ) in the valve housing ( 102 ) is formed at a level of the throttle channel ( 38 ) and opens into the throttle channel ( 38 ).

3. The tank device ( 1 ) according to claim 2 , wherein a chamber ( 35 ) is formed in the valve housing ( 102 ), which chamber ( 35 ) is connected to the throttle channel ( 38 ) by the second through-opening ( 8 ).

4. The tank device ( 1 ) according to the claim 3 , wherein the valve device ( 100 ) is arranged in a neck region ( 203 ) of the tank device ( 1 ) and is pressed against a tank floor ( 140 ) within the neck region ( 203 ).

5. The tank device ( 1 ) according to claim 4 , wherein a discharge opening ( 14 ) is formed in the tank floor ( 140 ), which discharge opening fluidically connects a tank interior ( 201 ) and the chamber ( 35 ) to one another.

6. The tank device ( 1 ) according to claim 1 , wherein the pilot valve element ( 24 ) comprises a shoulder ( 43 ), on which shoulder ( 43 ) a spring ( 16 ) is supported and the pilot valve element ( 24 ) is subjected to a force in a direction of one end ( 42 ) of the pilot valve element ( 24 ).

7. The tank device ( 1 ) according to claim 1 , wherein the first seal seat ( 18 ) is formed on the main valve element ( 12 ).

8. The tank device ( 1 ) according to claim 1 , wherein the main valve element ( 12 ) is subjected to a force in a direction of a tank interior ( 201 ) by a spring ( 22 ), as a result of which the main valve element ( 12 ) is subjected to a force in a direction of the first seal seat ( 18 ) and counter to a direction of the second seal seat ( 6 ).

9. The tank device ( 1 ) according to claim 1 , wherein an interior ( 45 ) is formed in the valve housing ( 102 ), which interior ( 45 ) is divided by the main valve element ( 12 ) into a first partial interior ( 450 ) and a second partial interior ( 451 ).

10. The tank device ( 1 ) according to claim 9 , wherein the first partial interior ( 450 ) is connected to a supply line ( 40 ) by a discharge channel ( 2 ) formed in the valve housing ( 102 ), which supply line ( 40 ) can be connected to a supply region of a consumer system.

11. The tank device ( 1 ) according to claim 10 , wherein the supply region of the consumer system is an anode region of a fuel cell system.

12. The tank device ( 1 ) according to claim 9 , wherein the first partial interior ( 450 ) and the second partial interior ( 451 ) can be fluidically connected by the first seal seat ( 18 ) and/or the second seal seat ( 6 ).

13. A fuel cell system with a tank device ( 1 ) for storing hydrogen for operating a fuel cell according to claim 1 .

14. A fuel-cell-powered vehicle with a tank device ( 1 ) for storing hydrogen for operating a fuel cell according to claim 1 .

15. The tank device ( 1 ) according to claim 1 , wherein the gaseous medium is hydrogen.

16. A tank device ( 1 ) for storing a gaseous medium comprising a valve device ( 100 ) and a tank ( 200 ), wherein the valve device ( 100 ) comprises a valve housing ( 102 ), in which valve housing ( 102 ) a pilot valve element ( 24 ), which can be moved along a longitudinal axis ( 101 ) of the valve device ( 100 ), is arranged, which pilot valve element ( 24 ) interacts with a first seal seat ( 18 ) for opening and closing a first through-opening ( 20 ) and thus forms a pilot valve ( 240 ), wherein the valve device ( 100 ) comprises a solenoid coil ( 32 ) operable to move the pilot valve element ( 24 ) along the longitudinal axis ( 101 ), wherein a main valve element ( 12 ) is arranged in the valve housing ( 102 ), which main valve element ( 12 ) interacts with a second seal seat ( 6 ) for opening and closing a second through-opening ( 8 ) and thus forms a main valve ( 120 ), wherein the second seal seat ( 6 ) is configured as a conical shoulder ( 36 ) on the valve housing ( 102 ), wherein between the valve housing ( 102 ) and an integrally molded shaping ( 37 ) of the main valve element ( 12 ), which integrally molded shaping ( 37 ) interacts with the second seal seat ( 6 ) to open and close the second through-opening ( 8 ), a throttle channel ( 38 ) is formed, which throttle channel ( 38 ) comprises a conical widening towards the second through-opening ( 8 ), as a result of which a throttling effect is formed, wherein the valve device ( 100 ) can be opened in a direction of the tank ( 200 ) when the solenoid coil ( 32 ) is energized, and wherein the valve device ( 100 ) is arranged in a neck region ( 203 ) of the tank device ( 1 ) and is pressed against a tank floor ( 140 ) within the neck region ( 203 ).

17. The tank device ( 1 ) according to claim 16 , wherein a discharge opening ( 14 ) is formed in the tank floor ( 140 ), which discharge opening fluidically connects a tank interior ( 201 ) and a chamber ( 35 ) to one another.

Assignees

• Bosch Gmbh Robert

Inventors

• Schaich Udo

Classifications

• H01M8/04089

  of gaseous reactants · CPC title

• F17C2221/012

  Hydrogen · CPC title

• F16K31/42

  by means of electrically-actuated members in the supply or discharge conduits of the fluid motor (F16K31/40 takes precedence) · CPC title

• F16K1/306 Primary

  with a valve member, e.g. stem or shaft, passing through the seat · CPC title

• Y02T90/40

  Application of hydrogen technology to transportation, e.g. using fuel cells · CPC title