Device for reducing nox emission in a diesel engine system

Device for reducing nox emission in a diesel engine system

  • CN 102,166,678 A
  • Filed: 02/25/2011
  • Published: 08/31/2011
  • Est. Priority Date: 02/26/2010
  • Status: Active Application
First Claim
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1. the manufacture method of a heat-exchangers of the plate type, described heat-exchangers of the plate type has a plurality of plates of lamination, and described a plurality of plates are the shape with rectangle of long limit and minor face, and are formed with the waveform shape at lamination direction top offset,With a side of described lamination direction as downside, under the situation of the opposing party as upside, for the lower side panel and the epipleural of adjacency,The top crest line on top of representing the ripple of a plurality of basal edge lines at the end of ripple of described epipleural and the described lower side panel of expression intersects, form a plurality of cross parts, at described a plurality of cross parts, the top of the end of the described ripple of described epipleural and the described ripple of described lower side panel engages by the soldering operationIt is characterized in that, has the pressurization operation, the order of this pressurization operation when finishing is long-pending at described soldering operation anterior layer with described a plurality of plates, with to lamination the mode compressed of described a plurality of plates on described lamination direction, pressurize, thereby form impression on the top of the described ripple of the end of the described ripple of the described epipleural of at least a portion of described a plurality of cross parts and described lower side panel.

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