Electric actuators for vehicle powered steering systems
US5994807A · kind A · utility
12Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | May 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric actuator for use in a vehicle power steering system includes an electric motor (20) and a gearbox (22). The electric motor (20) has a stator (26) and an armature (27) concentric with the stator (26) that is adapted to rotate about a common axis. A single common output shaft (40) extends through the actuator (14) to transmit torque from the motor (20) to a drive portion (70) of the output shaft (40) remote from the gearbox (22), from whence torque is transmitted to the gearbox (22) through a transmission portion (60) of the shaft (40). A clutch (21) may be provided between the motor (20) and the output shaft (40).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.