재압축 반응 동반 천연가스 압축점화엔진

    公开(公告)号:KR101910956B1

    公开(公告)日:2018-10-23

    申请号:KR1020170081698

    申请日:2017-06-28

    Inventor: 송한호 이태경

    Abstract: 본발명은실린더와, 상기실린더에설치되어공기의출입과배기가스의배출을조절하는흡배기밸브와, 상기실린더내부의상사점과하사점사이를운동하는피스톤과, 상기실린더내부에천연가스를분사하는인젝터를포함하는재압축반응동반천연가스압축점화엔진에관한것으로서, 특히상기배기밸브는배기행정중 피스톤이상사점에도달되기전에닫아고온의배기가스일부가실린더내부에잔류되도록하고, 상기인젝터는고온의배기가스일부가잔류한실린더내부에천연가스를선분사하여고온의배기가스와천연가스가실린더내부에서재압축반응이일어나도록함과아울러압축행정말기에천연가스를주분사하여, 압축행정말기에주분사되는천연가스가자발화하여완전연소되게함으로써고효율, 고부하, 저배기특성을달성할수 있는이점할수 있는효과가있다.

    벤즈하이드릴아민 또는 그 유도체가 도입된 폴리스티렌수지 제조 방법
    6.
    发明公开
    벤즈하이드릴아민 또는 그 유도체가 도입된 폴리스티렌수지 제조 방법 有权
    制备具有苯甲酰胺或其衍生物的聚苯乙烯树脂的方法

    公开(公告)号:KR1020090103972A

    公开(公告)日:2009-10-05

    申请号:KR1020080029405

    申请日:2008-03-29

    Inventor: 이윤식 이태경

    CPC classification number: C08F8/30 C08F8/12 C08F212/08 C08F212/36

    Abstract: PURPOSE: A method for preparing polystyrene resin in which benzhydrylamine or derivatives thereof is introduced is provided to ensure high reproducibility without use of explosive strong base and high temperature condition. CONSTITUTION: A method for preparing polystyrene resin in which benzhydrylamine of chemical formula (3) or derivatives thereof comprises the steps of: preparing a formamido polystyrene resin of chemical formula (2) by reacting a compound of chemical formula (1) and polystyrene resin by using a first Lewis acid catalyst; and hydrolyzing the formamido polystyrene resin of chemical formula (2) in a second solvent by using a second Lewis acid catalyst. In chemical formula (1), (2) and (3), R is H, CH3, OCH3 or isopropyl group.

    Abstract translation: 目的:提供引入二苯甲基胺或其衍生物的聚苯乙烯树脂的制备方法,以确保高再现性而不使用爆炸强碱和高温条件。 构成:制备其中化学式(3)的二苯甲基胺或其衍生物的聚苯乙烯树脂的方法包括以下步骤:通过使化学式(1)的化合物与聚苯乙烯树脂通过化学式 使用第一路易斯酸催化剂; 并使用第二路易斯酸催化剂在第二溶剂中水解化学式(2)的甲酰胺聚苯乙烯树脂。 在化学式(1),(2)和(3)中,R是H,CH 3,OCH 3或异丙基。

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