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1. 发明授权

US4873823A Air injection pipe assembly and method of making 失效
标题翻译：注气管总成及制造方法
公开(公告)号：US4873823A
公开(公告)日：1989-10-17
申请号：US332603
申请日：1989-04-03
申请人： Gary Curths
发明人： Gary Curths
IPC分类号： F01N3/34 , F01N13/10 , F01N13/18
CPC分类号： F01N13/1805 , F01N13/10 , F01N3/34 , F01N2270/04 , Y02T10/20 , Y10T29/49398
摘要： An air injection pipe assembly adapted for delivering atmospheric air to the exhaust manifold of vehicle engine comprises a manifold air tube having an inlet and a plurality of spaced outlets. An air inlet valve having an outlet pipe is snugly projected into the manifold air tube and crimped thereto. A plurality of irregularly shaped air injection tubes at their one ends project into the manifold air tube outlets respectively and are brazed thereto and a flair fitting is secured upon the other end of each of the air injection tubes adapted for projection into spaced openings of a vehicle exhaust manifold for securing thereto. The method of making an air injection tube comprises the steps of forming a manifold air tube into U-shape and assembling the outlet of an air valve into one end of the air tube and annularly crimping one end of the manifold tube around the outlet of the air valve. Further steps include forming a plurality of outlets along the length of the air manifold tube and providing a plurality of injection tubes of irregular shape and projecting the one ends of said injection tubes into the respective outlets and brazing the one ends of the injection tubes to the manifold tube. A final step includes assembling a flare fitting upon the other end of each of the injection tubes adapted for projection into spaced apertures along the length of the vehicle exhaust manifold.
摘要翻译：适于将大气空气输送到车辆发动机的排气歧管的空气喷射管组件包括具有入口和多个间隔开的出口的歧管空气管。具有出口管的空气入口阀紧贴地突出到歧管空气管中并压接在其上。多个不规则形状的空气注入管在它们的一端分别突出到歧管空气管出口中并钎焊到其上，并且一个天平配件被固定在每个空气注入管的另一端，适合于突出到车辆的间隔开的开口用于固定的排气歧管。制造空气注入管的方法包括以下步骤：将歧管空气管形成U形并将空气阀的出口组装到空气管的一端，并将歧管的一端环绕在管的出口周围气阀。进一步的步骤包括沿着空气歧管管的长度形成多个出口并提供多个不规则形状的注入管，并将所述注入管的一端突出到相应的出口中，并将注入管的一端钎焊到歧管。最后的步骤包括将每个注入管的另一端上的火炬接头组装成适于沿着车辆排气歧管的长度突出到间隔开的孔中。

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