Differential mechanism
US5183446A · kind A · utility
Inventor
Key dates
| Filing date | Feb 26, 1992 |
| Grant date | Feb 2, 1993 |
| Priority date | — |
| Expiry date | Feb 26, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/085
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Limited slip differential, e.g. for vehicle transmissions, seen in FIG. 1, has a carrier (18) rotating about a first axis in a support casing (12) typically driven by a crown wheel (22) and main drive pinion (24). A pair of output half shafts (14, 16) on said axis have output pinions (28, 30) within the carrier meshing with at least one, and preferably a pair, of planet pinions (32, 34) journalled in the carrier on a second axis normal to first axis to allow differential motion of the output shafts while transmitting drive to both from the rotating carrier in known manner. Controlled shifting of the planet gear(s) relative to the carrier by angular displacement of the second axis in a diametral plane of the first axis from a neutral position to an inhibiting position, e.g. by displacement of a planet gear shaft (36) in slots (38) of the carrier, when the carrier is subjected to drive torque brings formations, e.g. end faces (42, 44) of the planet gears, into braking engagement with formations (46, 48) of the carrier so as to inhibit the differential action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.