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1. 发明授权

US4448754A Monolithic catalyst catalytic converter with catalyst holding expansible retainer ring 失效
标题翻译：具有催化剂保持可膨胀保持环的单片催化剂催化转化器
公开(公告)号：US4448754A
公开(公告)日：1984-05-15
申请号：US428663
申请日：1982-09-30
申请人： Kiyoshi Isogai , Nobuo Tobi , Itsuo Koga , Masahiko Takeuchi , Makoto Okamoto , Nobuo Ohmori , Naka Takita
发明人： Kiyoshi Isogai , Nobuo Tobi , Itsuo Koga , Masahiko Takeuchi , Makoto Okamoto , Nobuo Ohmori , Naka Takita
IPC分类号： F01N3/28 , F01N3/10
CPC分类号： F01N3/2853 , F01N3/2867 , Y10S55/30
摘要： A catalytic converter includes a tubular casing within which is held a monolithic catalyst body which is generally of a columnar shape. The ends of the monolithic catalyst body are each engaged with a cushion ring, and each cushion ring is engaged with a retainer ring therefor, which is substantially axially fixed within the casing near to an end thereof. The monolithic catalyst body is supported within the casing by axial compressive force present between the retainer rings on the outside, the cushion rings between the retainer rings, and the monolithic catalyst body between the cushion rings. At least one of the retainer rings is formed with a break in a part of its circumference, the two free ends of the retainer ring on the two sides of the break being movable with distortion of the retainer ring through a certain distance, according to changes of temperature of the retainer ring, with respect to one another in the mutual relative direction which causes the overall circumference of the retainer ring to be diminished, so that expansion of the retainer ring when it heats up is absorbed, and the retainer ring is not subject to kinking or folding when the catalytic converter operates in the hot condition.
摘要翻译：催化转化器包括一个管状外壳，在该壳体中保持一般为柱状的整体式催化剂体。整体式催化剂体的端部均与缓冲环接合，并且每个缓冲环与其保持环接合，该保持环基本上轴向固定在壳体内靠近其端部。单体催化剂体通过存在于外部的保持环之间的轴向压力，保持环之间的缓冲环和缓冲环之间的整体式催化剂体而被支撑在壳体内。至少一个保持环在其圆周的一部分中形成有断裂，断裂两侧的保持环的两个自由端可随着保持环的变形而移动一定距离，根据变化保持环的温度相对于彼此相对的方向，导致保持环的整个周长减小，从而吸收保持环的膨胀，并且保持环不是当催化转化器在热的条件下工作时，会发生扭结或折叠。

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