专利名称：Heating unit
发明人：JOHN FRANCIS URCH 申请号：AU5000596淘宝文胸
申请日：19960328
公开号：AU692375B2
公开日：
皮蛋是怎么做的
三星怎么分屏
四年级手抄报简单又漂亮19980604
上官婉儿的诗专利内容由知识产权出版社提供word页边距
隆重的反义词
摘要：A fresh air heating unit has a casing (2) containing a stale air flow path (25) and a fresh air flow path (14). Combusted gas products from a gas burner (29) are mixed with the fresh air to heat it to a desired temperature before it is discharged into an enclosure. The two paths extend through a heat exchanger (15) and the rate of flow of stale air driven by a fan (26) through the casing is substantially equal to the rate of flow of fresh air driven through the casing by a cond fan (21). As the rate of flow of fresh air from the casing into an enclosure is substantially matched by the rate of flow of stale air from the enclosure, and heat is transferred between the two air flows by the heat exchanger (15), a total replacement of air in the enclosure at a relatively high rate can be sustained in an economically viable manner. The level of noxious combustion products in the enclosure and produced by the gas burner (29) can thus be kept beneath that regarded as harmful by health authorities.
茹丝葵牛排馆申请人：ECO AIR LIMITED
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