WO2026131379 - REDUCED-FRICTION FASTENER FOR A ROTARY INSERT OF A HEAT EXCHANGER TUBE
National phase entry is expected:
Publication Number
WO/2026/131379
Publication Date
25.06.2026
International Application No.
PCT/EP2025/086396
International Filing Date
10.12.2025
Title **
[English]
REDUCED-FRICTION FASTENER FOR A ROTARY INSERT OF A HEAT EXCHANGER TUBE
[French]
FIXATION A FRICTION REDUITE POUR INSERT ROTATIF DE TUBE D'ECHANGEUR DE CHALEUR
Applicants **
IFP ENERGIES NOUVELLES
Inventors
HAROUN, Yacine
AL-MAQALEH, Yousef
MAILLET, Guillaume
MARTINEZ ALVARADO, Luis Enrique
Priority Data
FR2414445
18.12.2024
FR
Application details
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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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| 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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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2192 | |
| EPO | Filing, Examination, Granting | 8824 | |
| Japan | Filing, Examination, Granting | 2225 | |
| South Korea | Filing, Examination, Granting | 2097 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
20,078
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Abstract[English]
The present invention relates to a low-friction fastening device for a rotationally movable insert for a heat exchanger tube. Such inserts are used to improve the heat transfer efficiency and/or reduce the fouling of the heat exchanger tubes of industrial units, for example units used in the fields of petroleum refining, petrochemistry or chemistry in general. The fastening device comprises a fastening support forming a bearing (130) for a journal (120), and at least one reduced-friction anti-wear part (150) having a longitudinal section with a shape adapted to reduce the friction with a head (14', 141) of the journal and/or an additional anti-wear part, the longitudinal section being circular, semi-circular, or frustoconical.[French]
La présente invention concerne un dispositif de fixation à faible friction pour un insert mobile en rotation pour tube d'échangeur de chaleur. De tels insert servent à améliorer l'efficacité de transfert thermique et/ou réduire l'encrassement des tubes d'échangeurs de chaleur d'unités industrielles, par exemple des unités mises en œuvre dans les domaines du raffinage du pétrole, de la pétrochimie ou de la chimie en général. Le dispositif de fixation comporte un support de fixation formant palier (130) pour un tourillon (120), et au moins une pièce anti-usure à friction réduite (150) comportant une section longitudinale de forme adaptée à réduire le frottement avec une tête (14', 141) du tourillon et/ou une pièce anti-usure supplémentaire, ladite section longitudinale étant circulaire, semi-circulaire, ou tronconique.