| 摘要 |
A heat exchanger has two inlets and two outlets for two counterflow air paths through a stack plates. The plates are vacuum-formed, each having a section with zigzag walls forming multiple flow channels between adjacent plates. The edges of the plates have walls that nest with one another and are retained and sealed between ribs on two side plates. Four grilles at the inlets and outlets have bars with recesses retaining the edges of pairs of plates, the bars being separated by spaces allowing air to flow between adjacent pairs of plates and into or out of the air paths.
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