Solenoid/magnetic hold brake with power off magnet hold function
US10995808B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Dec 17, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/80
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A PDU for use in an aircraft includes a wheel configured to convey cargo through a portion of the aircraft. The PDU further includes an armature rotatably coupled to the wheel. The PDU further includes a brake pad. The PDU further includes a hold solenoid configured to compress the armature against the brake pad by a brake amount in order to apply a hold braking force to the wheel by resisting rotation of the armature. The PDU further includes a release solenoid configured to apply a force to separate the armature from the brake pad in order to allow the armature to rotate. The PDU further includes a magnet configured to compress the armature against the brake pad by a drag amount that is less than the brake amount in order to apply a drag braking force to the wheel by resisting rotation of the armature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.