WO2025248332 - HYDRAULIC VARIABLE RATIO GEARBOX WITH AN INNOVATIVE MECHANISM FOR TORQUE AND SPEED ADJUSTMENT
National phase entry is expected:
Publication Number
WO/2025/248332
Publication Date
04.12.2025
International Application No.
PCT/IB2025/053427
International Filing Date
01.04.2025
Title **
[English]
HYDRAULIC VARIABLE RATIO GEARBOX WITH AN INNOVATIVE MECHANISM FOR TORQUE AND SPEED ADJUSTMENT
[French]
BOÎTE DE VITESSES À RAPPORT VARIABLE HYDRAULIQUE DOTÉE D'UN MÉCANISME INNOVANT D'AJUSTEMENT DE COUPLE ET DE VITESSE
Applicants **
HOSEYNLAR, Hamid
Inventors
HOSEYNLAR, Hamid
Priority Data
140350140003001521
27.05.2024
IR
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
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International Searching Authority |
IP India
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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 | 2070 | |
| EPO | Filing, Examination, Granting | 8705 | |
| Japan | Filing, Examination, Granting | 2147 | |
| South Korea | Filing, Examination, Granting | 2042 | |
| USA | Filing, Examination, Granting | 11340 |
Total:
26,304
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Abstract[English]
The Variable Hydraulic variable ratio gear box uses a hydraulic pump and motor to transmit power without mechanical gears. The pump converts constant input torque into pressurized hydraulic fluid, with adjustable flow and pressure to control power delivery. This fluid powers the hydraulic motor, which converts it back into mechanical output torque. By varying the volumetric capacities of both pump and motor, the system continuously adjusts the transmission ratio. Decreasing the pump's volume while increasing the motor's results in higher output torque at lower speed, while the reverse yields higher speed with lower torque. Braking is hydraulically applied directly to the output shaft, eliminating mechanical clutches and enhancing efficiency and control during operation.[French]
La boîte de vitesses à rapport variable hydraulique variable utilise une pompe hydraulique et un moteur pour transmettre de la puissance sans engrenages mécaniques. La pompe convertit un couple d'entrée constant en fluide hydraulique sous pression, avec un débit et une pression ajustables pour réguler la distribution de puissance. Ce fluide alimente en puissance le moteur hydraulique, qui la reconvertit en couple de sortie mécanique. La variation des capacités volumétriques de la pompe et du moteur permet au système d'ajuster en continu le rapport de transmission. La diminution du volume de la pompe tout en augmentant celui du moteur aboutit à un couple de sortie plus élevé à vitesse inférieure, tandis que l'inverse donne une vitesse supérieure avec un couple inférieur. Le freinage est appliqué hydrauliquement directement à l'arbre de sortie, ce qui élimine les embrayages mécaniques et améliore l'efficacité et la commande pendant le fonctionnement.