Abstract: The invention relates to a reductant supply system for a waste gas cleaning catalyst of an internal combustion engine, in particular of a vehicle, comprising a reductant tank (3) for the holding of reductant, a connection line (4, 5) in order to convey reductant from the reductant tank (3) to a waste gas cleaning catalyst (2), and a pump (6) to pump reductant from the reductant tank (3) to the catalyst (2). According to the invention it is provided that at least one section of the connection line (4, 5) is configured as a corrosion-resistant metal pipe being provided with electrical terminal lugs (10, 11, 12, 13) in order to convey an electrical hating current through the connection line (4, 5) for the defrosting of reductant.

Abstract: The invention describes an electrical heating facility for the heating of liquid, in particular of washing liquid of a window washing facility, in a motor vehicle, comprising a metallic housing (2) with a first end (3) for immersion in the liquid to be heated and a second end (4) with an electrical connection terminal (5); at least one heating element (11) that is arranged in the housing (2); and at least one metallic heat conducting element (20) for conducting heat away from the housing (2). The invention provides the heat conducting element (2) as a stamped-out heat conducting plate comprising a slit that is used to slide it onto the housing (2). Moreover, the invention describes a liquid container with a heating facility, in which a heat contact surface of the heat conducting element (20) of the heating facility (1) rests against an intake fitting (31) that protrudes into the container.

Abstract: A method for the electrical insulation of an arrangement with an electrical functional element, such as a PTC element or a thermoelectric functional element is proposed, which is placed on a fastening part or in an electrically conductive casing. The inventive method is characterized in that the functional element together with the at least one connection, accompanied by the hollowing out of at least one contact surface to the fastening part, is so surrounded with an electrically insulating material that the latter engages on the fastening part or in the casing all around the contact surface. Thus, in a design and manufacturing simple manner, e.g. by extrusion, a comprehensive sealing of the electrical functional element can be achieved, so that during a subsequent covering with a material having a certain electrical conductivity, no shorting links are formed between the electrical connections of the functional element and the reference potential.

Abstract: The invention describes an electrical heating facility for the heating of liquid, in particular of washing liquid of a window washing facility, in a motor vehicle, comprising a metallic housing (2) with a first end (3) for immersion in the liquid to be heated and a second end (4) with an electrical connection terminal (5); at least one heating element (11) that is arranged in the housing (2); and at least one metallic heat conducting element (20) for conducting heat away from the housing (2). The invention provides the heat conducting element (2) as a stamped-out heat conducting plate comprising a slit that is used to slide it onto the housing (2). Moreover, the invention describes a liquid container with a heating facility, in which a heat contact surface of the heat conducting element (20) of the heating facility (1) rests against an intake fitting (31) that protrudes into the container.

Abstract: The electric heating arrangement (1) has a tubular housing (2) in which is provided at least one PTC heating element (20) and at least one pair of metallic heat dissipators (9) between which the at least one heating element (20) is clamped and which for this purpose each comprise a base portion (10) facing the at least one heating element and one or two curved legs (15) projecting from said base portion, which adapt themselves resiliently to the inner surface of the surrounding wall of the housing (2). The invention provides that the legs (15) taper toward their free ends and/or that the base portion (10) is thicker than the legs (15) projecting it.

Abstract: The electric heating arrangement (1) has a tubular housing (2) in which is provided at least one PTC heating element (20) and at least one pair of metallic heat dissipators (9) between which the at least one heating element (20) is clamped and which for this purpose each comprise a base portion (10) facing the at least one heating element and one or two curved legs (15) projecting from said base portion, which adapt themselves resiliently to the inner surface of the surrounding wall of the housing (2). The invention provides that the legs (15) taper toward their free ends and/or that the base portion (10) is thicker than the legs (15) projecting it.