WO2025158383 - BLOWER FOR FUEL CELL RECIRCULATION SYSTEM
National phase entry is expected:
Publication Number
WO/2025/158383
Publication Date
31.07.2025
International Application No.
PCT/IB2025/050825
International Filing Date
24.01.2025
Title **
[English]
BLOWER FOR FUEL CELL RECIRCULATION SYSTEM
[French]
SOUFFLANTE POUR SYSTÈME DE RECIRCULATION DE PILE À COMBUSTIBLE
Applicants **
EATON INTELLIGENT POWER LIMITED
Inventors
THAPA, Suraj
GURJAR, Shubham
CHOUHAN, Rishiraj
JAMBARE, Giridhar
SWARTZLANDER, Matthew Gareld
Priority Data
202411005111
25.01.2024
IN
Application details
| Total Number of Claims/PCT | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| 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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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2169 | |
| EPO | Filing, Examination, Granting | 10664 | |
| Japan | Filing, Examination, Granting | 2307 | |
| South Korea | Filing, Examination, Granting | 2385 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,265
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Abstract[English]
A recirculation blower (20) can be used to recirculate fluid (e.g., hydrogen and/or air) through a fuel cell system. The blower includes a pair of rotors (30,32) disposed within a housing (22). Lobes of the rotors are intermeshed together. In certain blowers, each of the lobes defines a hybrid profile. For example, the hybrid profile may be a combination of at least two of circular, cycloidal, and involute curves. In certain blowers, at least one of the lobes defines a hollow passage (33) extending between opposite open ends. Plugs (60) are disposed at the open ends to close the hollow passage. The plugs are sufficiently short to be spaced from each other along the hollow passage. In certain examples, each of the lobes defines such a hollow passage.[French]
Selon l’invention, une soufflante de recirculation (20) peut être utilisée pour faire recirculer un fluide (par exemple, de l'hydrogène et/ou de l'air) à travers un système de pile à combustible. La soufflante comprend une paire de rotors (30, 32) disposés à l'intérieur d'un boîtier (22). Des lobes des rotors sont engrenés conjointement. Dans certaines soufflantes, chacun des lobes définit un profil hybride. Par exemple, le profil hybride peut être une combinaison d'au moins deux parmi des courbes circulaires, cycloïdales et à involutes. Dans certaines soufflantes, au moins un des lobes définit un passage creux (33) s'étendant entre des extrémités ouvertes opposées. Des bouchons (60) sont disposés aux extrémités ouvertes pour fermer le passage creux. Les bouchons sont suffisamment courts pour être espacés les uns des autres le long du passage creux. Dans certains exemples, chacun des lobes définit un tel passage creux.