Power transmission apparatus
US5017183A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Apr 17, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/204
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
To restrict and further promote differential rotation between first and second output shafts, the power transmission apparatus for differentially transmitting a rotative power supplied to an input shaft to two output shafts comprises a differential gear mechanism coupled between the two output shafts; a multiplying mechanism associated with the differential gear mechanism, for detecting and multiplying a differential rotation; a motor coupled to the multiplying gear mechanism, for restricting or promoting the differential rotation by driving the multiplying gear mechanism in either direction; and a controller for controlling rotative direction and torque of the motor by adjusting supply voltage polarity and motor current magnitude. The multiplying mechanism is a strange gear mechanism or a planetary gear mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.