Laundry treating apparatus having expansion valve which is variable according to the driving mode
US9146056B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2013 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Dec 2, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/086
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dryer is provided. The dryer may include an expansion valve that may be varied in response to changes in operation mode. The dryer may be a condensation type heat pump dryer, and, in an operation method thereof, the expansion valve may be varied according to an on/off of a solenoid valve corresponding to a selected operation mode. In a first operation mode the heater may be turned on so that heating is supplied by both the heat pump and the heater to provide for rapid drying. In a second operation mode the heater may be turned off to provide for more economical operation. By employing multiple operation modes, a required refrigerant flow rate may be controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.