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91. 发明公开

KR1020030082225A 배기계의 프론트 파이프 구조 失效
标题翻译：排气系统前管结构
公开(公告)号：KR1020030082225A
公开(公告)日：2003-10-22
申请号：KR1020020020867
申请日：2002-04-17
申请人： 현대자동차주식회사
发明人： 한학손
IPC分类号： F01N13/08
CPC分类号： F01N13/143 , F01N2450/26 , F01N2450/40
摘要： PURPOSE: A front pipe structure for an exhaust system is provided to prevent degradation of volumetric efficiency of engine caused due to the pressure wave generated during exhaust, while reducing vibrations and noises of exhaust system. CONSTITUTION: An exhaust system comprises an exhaust manifold connected to an exhaust port of an engine; and a front pipe(20) for guiding the exhaust gas generated from the rear end of the exhaust manifold to reach a catalyst purifier. The front pipe includes a plurality of dual pipes(22) communicated to the exhaust manifold; a confluent pipe(24) for combining the plural passages formed by the dual pipes into a single passage; a single pipe(26) having an end connected to the confluent pipe and the other end connected to the catalyst purifier; and a cover member(28) having both sides arranged along the outer surfaces of the dual pipes, confluent pipe and the single pipe in an airtight manner such that an air layer is formed between the cover member and the outer surfaces of the pipes.
摘要翻译：目的：提供一种用于排气系统的前管结构，以防止由于排气过程中产生的压力波而引起的发动机容积效率的降低，同时减少排气系统的振动和噪声。构成：排气系统包括连接到发动机的排气口的排气歧管; 以及用于引导从排气歧管的后端产生的废气到达催化剂净化器的前管（20）。前管包括连通到排气歧管的多个双管（22）; 用于将由双管形成的多个通道组合成单个通道的汇合管（24）单个管道（26），其端部连接到汇合管道，另一端连接到催化剂净化器; 以及具有沿着双管的外表面，汇合管和单管以气密方式布置的两侧的盖构件（28），使得在盖构件和管的外表面之间形成空气层。

92. 发明公开

KR1020000060181A 내연기관의 소음기 无效
标题翻译：内燃机发动机
公开(公告)号：KR1020000060181A
公开(公告)日：2000-10-16
申请号：KR1019990008289
申请日：1999-03-12
申请人： 현대자동차주식회사
发明人： 한학손
IPC分类号： F01N1/16
摘要： PURPOSE: A muffler is provided to accomplish an effectiveness of a perforated muffler and a semi-active muffler by allowing the section area of an exhaust pipe to be controlled. CONSTITUTION: A muffler(50) comprises a communication unit consisting of an outer pipe(52) having a space portion(60) for an easy flow of an exhaust gas by expanding a side pipe into which the exhaust gas enters, and a variable unit consisting of an inner pipe(54) arranged in the space portion and an expanded portion(58), the inner piper being provided with a first porous pipe(64) having an end thereof blocked and which forms a first porous portion(62), a second porous pipe(68) having an end thereof blocked and which forms a second porous portion(66) and is connected to the outer pipe side, and a resilient member(70) for connecting the first porous pipe and the second porous pipe. The resilient member expands and contracts in accordance with a change in exhaust gas pressure.
摘要翻译：目的：通过允许排气管的截面积控制，提供消声器以实现穿孔消声器和半主动消声器的有效性。消声器（50）包括由具有空间部分（60）的外管（52）组成的通信单元，用于通过扩大废气进入的侧管容易地排出废气，以及可变单元由布置在所述空间部分中的内管（54）和膨胀部分（58）组成，所述内吹管设有第一多孔管（64），所述第一多孔管的端部被堵塞并形成第一多孔部分（62）第二多孔管（68），其端部被封闭，并形成第二多孔部分（66）并连接到外管侧;以及弹性构件（70），用于连接第一多孔管和第二多孔管。弹性构件根据废气压力的变化而膨胀和收缩。

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