WO2025109491 - FUEL CELL RECIRCULATION SYSTEM
National phase entry is expected:
Publication Number
WO/2025/109491
Publication Date
30.05.2025
International Application No.
PCT/IB2024/061623
International Filing Date
20.11.2024
Title **
[English]
FUEL CELL RECIRCULATION SYSTEM
[French]
SYSTÈME DE RECIRCULATION DE PILE À COMBUSTIBLE
Applicants **
EATON INTELLIGENT POWER LIMITED
Inventors
THAPA, Suraj
GURJAR, Shubham
KHOPADE, Shilpa
CHAUDHARI, Amol
CHOUHAN, Rishiraj
TOULEC, Milos
Priority Data
202311078579
20.11.2023
IN
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2240 | |
| EPO | Filing, Examination, Granting | 10776 | |
| Japan | Filing, Examination, Granting | 2307 | |
| South Korea | Filing, Examination, Granting | 2380 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,443
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A fuel recirculation system manages fuel cell humidity requirements during the continuous operation of the vehicle by separating/injecting the water into the fuel line. During vehicle shutdown, the fuel recirculation system operates in a dehumidification mode in which fuel outlet from the fuel cell stack repeatedly cycles through a water separator and/or purge valve without being routed back to the fuel cell stack. Contaminated fuel from a gear case or sealing region of a blower also can be purged from the system. An example water separator includes a valve arrangement having a float-type actuator to selectively allow liquid water past a membrane to the storage tank.[French]
Un système de recirculation de combustible gère les exigences d'humidité de pile à combustible pendant le fonctionnement continu du véhicule par séparation/injection de l'eau dans la conduite de combustible. À l'arrêt du véhicule, le système de recirculation de combustible fonctionne dans un mode de déshumidification dans lequel le combustible en sortie de l'empilement de piles à combustible passe de manière répétée à travers un séparateur d'eau et/ou une soupape de purge sans être renvoyé à l'empilement de piles à combustible. Le combustible contaminé en provenance d'un carter de boîte de vitesses ou d'une région d'étanchéité d'une soufflante peut également être purgé du système. Un exemple de séparateur d'eau comprend un agencement de soupape ayant un actionneur de type à flotteur pour permettre sélectivement à l'eau liquide de traverser une membrane vers le réservoir de stockage.