Automatic planetary gearbox producing infinitely variable speed ratios
Abstract
Abstract A FLUID BRAKING APPARATUS IS ARRANGED TO BRAKE TO A CONTROLLED AND VARIABLE EXTENT ONE OF THE COMPONENTS OF A PLANETARY GEARING TO SECURE A CONTINUOUS VARIATION OF THE RATIO OF THE SPEEDS OF AN INPUT COMPONENT AND AN OUTPUT COMPONENT OF THE GEARING. GOVERNOR MEANS RESPONSIVE TO THE SPEEDS OF THE INPUT AND OUTPUT COMPONENTS OF THE GEARING IS CONNECTED TO THE BRAKING APPARATUS TO INFLUENCE THE BRAKING ACTION EXERTED ON THE BRAKED COMPONENT OF THE GEARING. THE INPUT COMPONENT IS THE SUN WHEEL AND THE OUTPUT COMPONENT IS A PLANET CARRIER UPON WHICH IS MOUNTED PLANET WHEELS. THE BRAKED COMPONENT IS AN ANNULUS DRIVEN BY THE GEARING. A PUMP IS DRIVEN BY THE ANNULUS, AND A VALVE ON THE ROTOR SHAFT OF THE PUMP IS CONTROLLED BY THE GOVENOR MEANS CONTROLLABLY RESTRICTING THE FLOW OF FLUID FROM THE PUMP TO BRAKE THE PUMP AND ANNULUS.
Inventors
- 👤 Graeme Gordon Harvey
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |