Differential gear
US7204778B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Apr 13, 2005 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Nov 8, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/423
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A differential gear arbitrarily produces difference in speed of rotation between output side rotary members. When a difference in speed of rotation occurs between drive shafts 3 and 4, if clutches 12 and 17 are disconnected, the drive shaft 3 rotates independently of the first output side gear 9, and the drive shaft 4 rotates independently of the second output side gear 14. When the rotation of the drive shaft 3 with respect to the first output side gear 9 is controlled by the first clutch 12, by setting appropriately the gear ratios between (1) the first input side gear 8, (2) the first output side gear 9 and (3) the first intermediate gears 10, the drive shaft 3 rotates faster than the drive shaft 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.