Hydromechanically infinitely variable transmission, with power splitting, particularly for motor vehicles
US5267911A · kind A · utility
Inventor
Key dates
| Filing date | Sep 24, 1992 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Sep 24, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2037/0886
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydromechanically infinitely variable transmission with power splitting for motor vehicles with at least five gearshift ranges. The transmission can be infinitely varied by means of a hydrostatic transmission. A hydrostat transmission, a multi-shaft summation planetary transmission and at least two downstream planetary transmission units constitute basic components which can be mutually coupled in transmission combinations of various configurations. The power summarized in the summarization planetary transmission is transmitted alternately through an intermediate shaft or coupling shaft and clutches to a planetary transmission unit. In at least one gearshift range, a shaft of the summarization planetary transmission is connected directly via a clutch to the output shaft. Depending on the embodiment, one to three reverse gear ranges can be incorporated in the transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.