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1. (WO2017149008) HEATING CARTRIDGE WITH A PROTECTIVE TUBE

Pub. No.:    WO/2017/149008    International Application No.:    PCT/EP2017/054760
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: H05B 3/44
H05B 3/82
H05B 3/42
H05B 3/48
H05B 3/50
Applicants: EICHENAUER HEIZELEMENTE GMBH & CO. KG
Inventors: LE COENT, Patrick
SCHLACHTER, Ulrich
Title: HEATING CARTRIDGE WITH A PROTECTIVE TUBE
Abstract:
The invention relates to a heating cartridge with a protective tube (2), in particular for heating solid cartridges in SCR systems. The heating cartridge (3) is inserted into the protective tube (2) at a distance therefrom, and the protective tube (2) contacts a medium to be heated on the outer face of the protective tube. According to the invention, at least one spring element (6, 66) which contacts the heating cartridge (3) and the protective tube (2) in a heat-conductive manner is inserted into an intermediate space between the heating cartridge (3) and the protective tube (2), and the spring element (6) has at least one surface pressing against the protective tube (2), said pressing surface being pressed elastically against the inner face of the protective tube (2) by the biasing force of the spring element (6, 66) in the assembled state.