公开(公告)号：US4457954A

公开(公告)日：1984-07-03

申请号：US297502

申请日：1981-08-28

申请人： David W. Dabill ,  Stephen J. Gentry ,  Nicholas W. Hurst ,  Alan Jones ,  Peter T. Walsh

发明人： David W. Dabill ,  Stephen J. Gentry ,  Nicholas W. Hurst ,  Alan Jones ,  Peter T. Walsh

IPC分类号： G01N27/16

CPC分类号： G01N27/16

摘要： An element for detecting combustible gases comprises a catalyst material associated with an electrical resistor serving as both a heater and a thermal sensor, the catalyst material being produced by heating a deposit from an aqueous slurry of alumina, of maximum particle size 0.1 micron, containing in solution a compound of a metal of the platinum group. The deposited material may constitute a pellet (6) within which is embedded a coiled part (3) of a wire (1) constituting the resistor. The element then resembles a conventional "pellistor" in form, but has improved resistance to poisoning or inhibition of the catalyst.

摘要翻译： 用于检测可燃气体的元件包括与用作加热器和热传感器两者的电阻器相关联的催化剂材料，所述催化剂材料通过从最大粒度为0.1微米的氧化铝的水性浆料中加热沉积物而产生， 溶解铂族金属的化合物。 沉积材料可以构成颗粒（6），其中嵌入构成电阻器的线（1）的线圈部分（3）。 然后，该元件类似于常规的“阻流电阻器”，但具有改善的耐中毒或催化剂抑制能力。