Heat pump type drying apparatus drying apparatus and drying method
US7469486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2004 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Oct 3, 2025 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/24
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A drying apparatus has a heat pump comprising a compressor (31), a radiator (32), a throttle apparatus (33) and an evaporator (34), and also includes a structure in which drying air heated by heat of the radiator (32) is introduced to a subject (37) to be dried is dehumidified by the evaporator (34). The drying apparatus also includes a bypass circuit (39) through which a portion of dying air heated by the radiator (32) flows to an inlet of the evaporator (34) without coming into contact with the subject, a super heat detecting device (43, 44) for detecting super heat of the heat pump apparatus, and a throttle apparatus control device for controlling flow path resistance in the bypass circuit (39) using a value detected by the super heat detecting device (43, 44).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.