Reversibly opening and closing a grille using active materials
US7498926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2007 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Apr 27, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/88
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An active grille comprises a plurality of blades and an active material in operative communication with the blades. The active material is in operative communication with the blades and is operative to change at least one attribute in response to an activation signal, wherein fluid flow through the grille changes with the change in the at least one attribute of the active material. By way of example, in vehicle applications, the blades of a grille disposed in front of an engine compartment can be selectively positioned to provide increased airflow through the radiator due to increases in engine coolant temperature. As such, the active grille can be configured to improve vehicle fuel economy while maintaining proper engine cooling. An activation device, controller and sensors may be employed to further control the change in at least one feature of the active grille.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.