Hydrodynamic transmission for vehicles
Abstract
Abstract THE INVENTION CONCERNS A TRANSMISSION HAVING A UNIDIRECTIONAL INPUT SHAFT AND A REVERSIBLE OUTPUT SHAFT AND FORWARD AND REVERSE PARALLEL DRIVE TRAINS INTERCONNECTING SAID SHAFTS AND EACH DRIVE TRAIN COMPRISING A HIGHER RATIO STARTING FLUID FLOW CONVERTER AND A LOWER RATIO CRUISING FLUID FLOW CONVERTED. THE TRANSMISSION IS STARTED BY FILLING THE STARTING CONVERTER OF ONE OF SAID DRIVE TRAINS TO DRIVE THE OUTPUT SHAFT IN A RESPECTIVE DIRECTION. THE TRANSMISSION GOES INTO CRUISING BY EMPTYING SAID STARTING CONVERTER AND FILLING THE CRUISING CONVERTER OF SAID ONE DRIVE TRAIN AT A CERTAIN RATIO OF THE SPEEDS OF SAID INPUT AND OUTPUT SHAFTS. A FEATURE OF THE PRESENT INVENTION IS THE MANNER OF BRAKING THE TRANSMISSION WHICH IS ACCOMPLISHED BY EMPTYING THE ONE OF THE SAID STARTING AND CRUISING CONVERTERS OF SAID ONE DRIVE TRAIN WHICH IS FILLED WHILE FILLING THE STARTING CONVERTER OF THE OTHER DRIVE TRAIN, AND PREVENTING THE FILLING OF THE CRUISING CONVERTER OF SAID OTHER DRIVE TRAIN DURING BRAKING.
Inventors
- 👤 Rolf Keller
- 👤 Traugott Weber
- 👤 Gustav Pistl
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |