Synchronized gearbox
US6289757A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Mar 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19288
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A motor vehicle gearbox which includes at least two parallel primary and secondary shafts, respectively connected in rotation to an engine, and through a main transmission, to a wheel. The primary shaft bears a first idler gear to a second stationary pinion borne by the secondary shaft. The first idler is capable of being jaw clutched on the primary shaft for transmitting engine power to the wheel. A self-disengaging control selectively accelerates or brakes the primary shaft which bears the idler so as to synchronize them before linking them in rotation. A self-disengaging accelerator accelerates the primary shaft if its speed is less than that of the idler, and a self-disengaging brake brakes the primary shaft if its speed is greater than that of the idler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.