发明名称 |
Honeycomb heater having large hydraulic diameter orifices to narrow current flow |
摘要 |
A honeycomb heater including a honeycomb structure which is made of a conductive material and which has a number of passages substantially parallel to a gas flow direction partitioned by partition walls and which has respective providing a gas inlet and a gas outlet, and at least two electrodes for electrification provided on the honeycomb structure. The honeycomb heater is characterized in that besides the passages, orifices which have a larger hydraulic diameter than the passages and which narrow a current flow path are formed at predetermined positions of the honeycomb structure to adjust resistance, whereby a specific region of the honeycomb heater is locally heated more quickly as compared with other regions at the time of the electrification.
|
申请公布号 |
US5649049(A) |
申请公布日期 |
1997.07.15 |
申请号 |
US19940354437 |
申请日期 |
1994.12.12 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
ABE, FUMIO;KONDO, TOMOHARU;NODA, KEIJI |
分类号 |
B01J35/00;B01J35/02;B01J35/04;F01N3/20;F01N3/28;H05B3/14;(IPC1-7):F24H1/10;F01N3/10 |
主分类号 |
B01J35/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|