Dryer with air recirculation/heat exchange subassembly
US9695544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2012 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jan 23, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F58/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A laundry dryer is provided with a modular air recirculation subassembly fitted beneath a rotatable drum of the dryer. The subassembly has an air recirculation passage provided between an air supply passage and an air exhaust passage of the dryer. The air recirculation subassembly further has a flow directing flap at the juncture of the air inlet passage and the air recirculation passage to direct the recirculation air flow toward a heater and away from an inlet end of the air supply passage. The air recirculation subassembly may include a filter positioned across the air recirculation passage upstream of the heater, which filter is removable through the air exhaust passage. The subassembly may further include a heat exchanger to transfer heat from the warmer air exiting the exhaust passage to the cooler air entering the air supply passage, and a recirculation air flow regulating flap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.