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    • 4. 发明授权
    • Process for accelerating the response of an exhaust gas catalyst, and
apparatus and electrically heatable carrier bodies for performing the
method
    • 用于加速排气催化剂的反应的方法,以及用于实施该方法的装置和电热载体体
    • US5146743A
    • 1992-09-15
    • US604060
    • 1990-10-25
    • Wolfgang MausHelmut SwarsHans-Jurgen BreuerTheodor Cyron
    • Wolfgang MausHelmut SwarsHans-Jurgen BreuerTheodor Cyron
    • B01D53/86B01J31/00B01J35/02B01J35/04F01N3/20F01N3/28
    • F01N3/281B01J35/04F01N3/2026F01N9/00F01N2330/02F01N2330/44Y02T10/22Y02T10/26Y02T10/47Y10T428/24149
    • A method of accelerating the response of an exhaust gas catalyst downstream of an internal combustion engine, the exhaust gas catalyst having at least one metal catalyst carrier body coated with ceramic and catalytically active material having a given response temperature, and the carrier body having at least one subzone, the method includes supplying electric power to the metal catalyst carrier body for direct heating at least in subzones thereof, switching on the current for a period of time at least as early as immediately after the onset of engine operation, and dimensioning the current such that at least subzones of the metal carrier body are heated to the given response temperature at least as early as the exhaust gas reaches the given response temperature. The apparatus for performing the above method includes a main catalyst and an electrically heatable precatalyst disposed upstream of the main catalyst as seen in the flow direction of the exhaust gas. The electrically heated precatalyst carrier body comprises layered metal sheets forming a stack with a plurality of channels through which a fluid can flow, the metal sheets having a thickness of substantially 0.03 to 0.06 mm, insulators for electrically subdividing the catalyst carrier body for forming at least one electric current path through the metal sheets, the current path having an electric resistance of substantially between 0.2 and 2.OMEGA..
    • 一种加速内燃机下游的排气催化剂的响应的方法,所述排气催化剂具有至少一个涂有陶瓷的金属催化剂载体体和具有给定反应温度的催化活性材料,载体至少具有 一个子区域,该方法包括向金属催化剂载体主体供给至少在其子区域直接加热的电力,至少在发动机运转开始之后将电流接通一段时间,并且将电流 使得至少在废气达到给定的响应温度时,至少将金属载体的子区域加热至给定的响应温度。 用于执行上述方法的装置包括主催化剂和设置在主催化剂上游的电可加热预催化剂,如在排气的流动方向上所见。 电加热的预催化剂载体主体包括层叠的金属片,其形成具有多个通道的堆叠,流体可以流过该金属片,金属片具有基本上为0.03至0.06mm的厚度,绝缘体用于电催化剂载体主体用于电分割 通过金属片的一个电流路径,电流路径具有基本上在0.2和2欧米茄之间的电阻。
    • 8. 发明授权
    • Wound metallic exhaust gas catalyst carrier body having a geometrically
complex cross-sectional shape
    • 具有几何复杂横截面形状的金属废气催化剂载体主体
    • US4847230A
    • 1989-07-11
    • US116071
    • 1987-10-30
    • Theodor Cyron
    • Theodor Cyron
    • B21C37/06B01D53/86B01J35/04B23K11/11F01N3/28
    • F01N3/281B01J35/04B23K11/11B23K2201/00F01N2330/04F01N2470/10Y10T29/49345Y10T29/49826Y10T428/1234Y10T428/24149
    • A method of producing a metallic exhaust gas catalyst carrier body includes winding alternating layer of smooth and corrugated sheetmetal strips to form a blank and inserting the blank into a jacket tube, each winding of the blank being formed of a respective smooth and corrugated sheetmetal strip each having an individually predeterminable length; determining the length of each winding in accordance with the length necessary for filling a predetermined jacket tube cross section, fixing each winding beforehand to at least one side of the blank, so as to produce an approximately egg-shaped blank which is tightly wound on the one side and wound with varying looseness in the remaining region thereof; inserting the blank into the jacket tube in such a manner that the tightly wound side is located in a region of the jacket tube cross section in which a largest possible inscribed circle of the jacket tube cross section engages the jacket tube, and a device for carrying out the method, a carrier body formed by the method and device, and a blank forming part of the carrier body.
    • 一种制造金属废气催化剂载体的方法,包括使交替的平滑和波纹的金属板条形成一层,以形成坯料并将坯料插入套管中,每个卷绕的坯料由相应的光滑和波纹的钣金条形成 具有单独可预定的长度; 根据填充预定的套管横截面所需的长度来确定每个绕组的长度,将每个绕组预先固定到坯件的至少一侧,以便产生紧紧地卷绕在坯料上的大致蛋形坯料 一侧在其剩余区域中变得松动; 将坯料插入护套管中,使得紧密缠绕的侧面位于护套管横截面中最大可能的内接圆与护套管接合的护套管横截面的区域中,以及用于承载的装置 通过该方法和装置形成的载体,以及形成载体主体的一部分的坯料。