Importance

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Abstract

The invention relates to a reductant supply system for a waste gas cleaning catalyst (1) of an internal combustion engine, particularly a motor vehicle, comprising a reductant tank (3) for the storage of reductants, at least one electrically heatable fluid duct (6, 8) for the conveyance of reductant from the reductant tank (3) to a waste gas cleaning catalyst (1), a pump (5) to pump the reductant via the fluid duct (6, 8) from the reductant tank (3) to the waste gas cleaning catalyst (1), and a plug-in connection (10, 11) for connecting sections of the fluid duct (6, 8) in a fluid-conveying manner and/or connecting the fluid duct in a fluid-conveying manner to a component of the reductant supply system, wherein the plug-in connection additionally forms an electric connection line (12, 13, 14) which in operation conveys an electrical heating current for heating of the fluid duct (6, 8). The invention relates also to a plug-in connection (10, 11) for connecting a heatable fluid duct section (8a, 8b) as well as a female (10) and a male connector (11) of such plug-in connection.

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First Claim