WO2026035895 - TRANSMISSION DEVICE, TRANSMISSION SYSTEM AND MULTIPLIER TRANSMISSION SYSTEM
National phase entry is expected:
Publication Number
WO/2026/035895
Publication Date
12.02.2026
International Application No.
PCT/US2025/040988
International Filing Date
06.08.2025
Title **
[English]
TRANSMISSION DEVICE, TRANSMISSION SYSTEM AND MULTIPLIER TRANSMISSION SYSTEM
[French]
DISPOSITIF DE TRANSMISSION, SYSTÈME DE TRANSMISSION ET SYSTÈME DE TRANSMISSION PAR MULTIPLICATEUR
Applicants **
CHONG, Richard Francis
Inventors
CHONG, Richard Francis
Priority Data
63/681,756
09.08.2024
US
63/681,796
10.08.2024
US
202510153173.5
12.02.2025
CN
Application details
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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International Searching Authority |
USPTO
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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 |
Natural Person
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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 | 2618 | |
| EPO | Filing, Examination, Granting | 9807 | |
| Japan | Filing, Examination, Granting | 2122 | |
| South Korea | Filing, Examination, Granting | 2131 | |
| USA | Filing, Examination, Granting | 4310 |
Total:
20,988
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Abstract[English]
Conventional planetary transmission systems exhibit an inherent trade-off between speed and torque. The present transmission embodiments overcome this limitation by achieving a 1 : 2 speed increase while preserving torque transfer efficiency of 1 : 1. Key Features : Kinematic Symmetry. Identical sun and planet gear diameters produce a predictable 1 : 2 speed ratio, based on the classical sun-planet mechanism patented by James Watt in 1781. This principle is re-engineered in the present embodiments for enhanced compactness, mechanical robustness and torque retention. Torque Retention. The planetary gear is constrained from rotating about its own axis but remains free to orbit the sun gear. This orbital motion converts tangential force from the driven planetary gear carrier into output torque. This conversion exploits the entire center-to-center distance between the sun gear and the rotationally constrained planetary gear as an effective lever arm, enabling torque retention at 1 : 1 ratio relative to input torque.[French]
Les systèmes de multiplicateur planétaire classiques présentent un compromis inhérent entre la vitesse et le couple. Les présents modes de réalisation de transmission surmontent cette limitation en atteignant un rapport de vitesse de 1 : 2 tout en préservant l'efficacité de transfert de couple de 1 : 1. Caractéristiques clé : Symétrie cinématique. Des diamètres identiques de roue solaire et de satellite produisent un rapport de vitesse prévisible de 1 : 2, sur la base du mécanisme classique de roue solaire breveté par James Watt en 1781. Ce principe est re-travaillé dans les présents modes de réalisation pour une compacité, une robustesse mécanique et une rétention de couple améliorées. Rétention de couple. Le satellite est contraint de tourner autour de son propre axe mais reste libre d'orbiter autour de la roue solaire. Ce mouvement orbital convertit une force tangentielle provenant du support de satellite entraîné en un couple de sortie. Cette conversion exploite toute la distance centre à centre entre la roue solaire et le satellite à contrainte de rotation en tant que bras de levier efficace, permettant une rétention de couple à un rapport de 1 : 1 par rapport au couple d'entrée.