Electromagnetically activated on-wheel air pump
US6691754B1 · kind B1 · utility
19Cited by
9References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Aug 5, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/126
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention couples a tire pump with the wheel rim of a vehicle. The pump is activated electromagnetically to inflate the tire as desired, e.g. when tire pressure is below a required value. The pump is arranged to draw air from the atmosphere and pump into an interior portion of the tire. A magnetized plunger within the pump is biased to an initial position by a biasing element. Energizing an electromagnet generates a magnetic field. The pump is arranged to rotate in and out of the magnetic field to cause the plunger to reciprocate and inflate the tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.