WO2026047383 - ELECTRIC MOTOR WITH EXPLOSION INHIBITING MATERIAL
National phase entry is expected:
Publication Number
WO/2026/047383
Publication Date
05.03.2026
International Application No.
PCT/IB2024/058473
International Filing Date
30.08.2024
Title **
[English]
ELECTRIC MOTOR WITH EXPLOSION INHIBITING MATERIAL
[French]
MOTEUR ÉLECTRIQUE À MATÉRIAU INHIBITEUR D'EXPLOSION
Applicants **
ABB SCHWEIZ AG
Inventors
NEUPANE, Sneha
COLOMBO, Riccardo
MIKAIL, Rajib
SCOTT, Tiffany C.
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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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.
** 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 | 2094 | |
| EPO | Filing, Examination, Granting | 10670 | |
| Japan | Filing, Examination, Granting | 2327 | |
| South Korea | Filing, Examination, Granting | 2258 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,089
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Abstract[English]
An electric motor has a motor enclosure defining an enclosed volume and includes therein an annular stator and a cylindrical rotor separate by an air gap. The enclosed volume further includes a drive end compartment and a non-drive end compartment at axially opposite ends of the motor enclosure that are fluidly connected by the air gap. To dissipate a traveling flame front caused by an ignition in one of the drive and non-drive ends and axially pro- propagating toward the other, the electric motor includes a flame arresting porous material located in the air gap. The flame arresting porous material can be structurally formed as a cylindrical porous lining affixed to one or both of the annular stator and the cylindrical rotor.[French]
La présente invention concerne un moteur électrique qui comprend un boîtier de moteur formant un volume fermé et qui contient un stator annulaire et un rotor cylindrique séparés par un entrefer. Le volume fermé comprend en outre un compartiment d'extrémité d'entraînement et un compartiment d'extrémité de non-entraînement à des extrémités axialement opposées du boîtier de moteur qui sont en communication fluidique par le biais de l'entrefer. Pour dissiper un front de flamme qui se propage axialement à partir d'un point d'inflammation situé à l'une des extrémités d'entraînement ou de non-entraînement vers l'autre extrémité, le moteur électrique comprend un matériau poreux ignifuge situé dans l'entrefer. Le matériau poreux ignifuge peut être structuré sous la forme d'un revêtement poreux cylindrique fixé au stator annulaire et/au rotor cylindrique.