Invention Grant
- Patent Title: Electrically heatable honeycomb body and method for operating it
- Patent Title (中): 电加热蜂窝体及其操作方法
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Application No.: US12043439Application Date: 2008-03-06
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Publication No.: US08761586B2Publication Date: 2014-06-24
- Inventor: Rolf Brück
- Applicant: Rolf Brück
- Applicant Address: DE Lohmar
- Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
- Current Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
- Current Assignee Address: DE Lohmar
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- Priority: DE102007010758 20070306
- Main IPC: H05B3/60
- IPC: H05B3/60 ; H05B3/78 ; B60L1/02 ; E21B7/15

Abstract:
An electrically heatable honeycomb body has cavities through which a fluid can flow and contains at least one power distribution structure. The power distribution structure can be connected to a power source via a power feed line. At least one of the power feed line and the power distribution structure contains at least one closed-loop control element made of a material with a positive temperature coefficient (PTC) which can be placed at least in thermal contact with a fluid flowing through the honeycomb body. The electrically heatable honeycomb body permits, through the formation of a self-regulating closed-loop control element made for example from the PTC material, the implementation of a simple measure for performing closed-loop control on the heating power of the electrically heatable honeycomb body since the rest of the open-loop control or closed-loop control electronics can be significantly simplified or can even be dispensed with.
Public/Granted literature
- US20080217315A1 Electrically Heatable Honeycomb Body and Method for Operating It Public/Granted day:2008-09-11
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