Heat pump type drying apparatus drying apparatus and drying...

Details Heat pump type drying apparatus drying apparatus and drying... Heat pump type drying apparatus drying apparatus and drying...

2004-09-24

2008-12-30

Rinehart, Kenneth B (Department: 3749)

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

C034S073000, C034S076000, C034S474000, C062S503000

Reexamination Certificate

active

07469486

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).

REFERENCES:
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patent: 6035551 (2000-03-01), Scheufler et al.
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Chinese Office Action mailed Nov. 30, 2007 with English translation (10 pages).

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