Retarder equipment for vehicles
US4509623A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1982 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Apr 29, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In vehicle retarding equipment having an eddy-current retarder with four windings, a battery, four control contactors, a five position actuating member and a multiple contactor for under-energizing the retarder by connecting the windings thereof in series, two by two this latter contactor is automatically controlled by opening an appropriate contact, when the real braking torque is reduced to a third of its nominal value at cold, this control being slaved either to the temperature of the rotor armature of the retarder, through a thermocontact mounted in a pocket formed in a pole-shoe of the stator opposite said armature, or to the shifting of the gear box to a low gear position, or to the time during which the actuating member is in its position corresponding to maximum energization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.