Device for diagnosing valve failure of fuel cell system
US-2024347748-A1 · Oct 17, 2024 · US
Method for Controlling Pressure
US2016218383A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016218383-A1 |
| Application number | US-201414914177-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 19, 2014 |
| Priority date | Aug 29, 2013 |
| Publication date | Jul 28, 2016 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A method for controlling the pressure on the cathode side of a fuel cell system is disclosed. The fuel cell system has at least one fuel cell, an air conveying device which is arranged on a common shaft with an expander, and a system bypass which connects the pressure-side outlet of the air delivery device to the pressure-side inlet of the expander via a system bypass line and a system bypass valve. The system bypass valve is opened in order to increase the pressure in the fuel cell.
First claim
Opening claim text (preview).
1 .- 5 . (canceled) 6 . A method for controlling pressure on a cathode side of a fuel cell system having a fuel cell, an air conveying device which is disposed on a common shaft with an expander, and a system bypass which connects a pressure-side outlet of the air conveying device to a pressure-side inlet of the expander via a system bypass line and a system bypass valve, comprising the steps of: opening of the system bypass valve and increasing a pressure in the fuel cell by the opening of the system bypass valve; and changing a cross-section of the system bypass valve through which a flow passes as a function of a required pressure. 7 . The method according to claim 6 , wherein during the opening of the system bypass valve a value of an air mass flow conveyed to the fuel cell remains unchanged. 8 . The method according to claim 6 , wherein freeing of the cross-section which is associated with the required pressure takes place by a characteristic field. 9 . The method according to claim 6 , wherein the fuel cell system has no pressure control elements on the cathode side. 10 . The method according to claim 6 , wherein the pressure increase reduces waste heat from the fuel cell at a same or a greater electrical power output of the fuel cell. 11 . A fuel cell system, comprising: a fuel cell; an air conveying device which is disposed on a common shaft with an expander; and a system bypass which connects a pressure-side outlet of the air conveying device to a pressure-side inlet of the expander via a system bypass line and a system bypass valve; wherein the system bypass valve is opened and wherein a pressure is increased in the fuel cell by the opened system bypass valve to control pressure on a cathode side of the fuel cell system.
Assignees
Inventors
Classifications
- H01M8/04753Primary
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- What does patent US2016218383A1 cover?
- A method for controlling the pressure on the cathode side of a fuel cell system is disclosed. The fuel cell system has at least one fuel cell, an air conveying device which is arranged on a common shaft with an expander, and a system bypass which connects the pressure-side outlet of the air delivery device to the pressure-side inlet of the expander via a system bypass line and a system bypass v…
- Who is the assignee on this patent?
- Daimler Ag, Daimler Ag
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04753. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jul 28 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).