摘要:
The invention relates to a tank heating system, in particular for a urea tank of an internal combustion engine, comprising: a housing (2) in which is provided at least one PTC element, an electric connection line (3, 4) that is connected to the PTC element in order to carry a heating current via the PTC element, an intake pipe (5) for the conveyance of fluid, wherein at least a section of the electric connection line (5) is configured as a resistance heating element, that is in heat-conducting conduction with the inside of the intake pipe (5).
摘要:
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.
摘要:
An apparatus for heating gases, particularly air, with a heating unit having a mounting part, at least one PTC component, at least one insulating frame part surrounding the latter, at least one contact plate and at least one insulating support. The PTC component is surrounded by the frame part being inserted in the mounting part and on at least one flat side rests a contact plate and is covered by an insulating support. Heat emission lamellas are mounted in a clamping manner on the heating unit to ensure an effective heat emission to the surrounding air or gas.
摘要:
The invention relates to a tank heater, especially for a urea tank of an internal combustion engine, comprising a housing (2) in which at least one PTC element is arranged, an electrical connecting cable (3, 4) that is joined to the PTC element so as to conduct a heating current through the PTC element, and an intake pipe (5) for conveying liquid. At least one section of the electrical connecting cable (5) is embodied as a resistive heating element which is connected in a thermally conducting manner to the interior of the intake pipe (5).
摘要:
The invention relates to a urea supply system for a waste gas cleaning catalyst of an internal combustion engine, comprising a urea tank for the receiving of urea solution, a connecting line that connects the urea tank with a waste gas cleaning catalyst, a pump in order to pump urea solution via the connecting line from the urea tank to the catalyst, and a heating insert for the defrosting of frozen urea solution. According to the invention it is provided that the return line is configured and arranged in such a manner that, during operation, because of the urea solution discharged from the return line there is prevented the forming of an air gap between the heating insert and the frozen urea solution. The invention relates also to a heating insert for such a urea supply system.
摘要:
The invention relates to a heating element with an electrical resistance heating element, at least one electrical connector line for supplying power to the heating element, a metal body with a connector, through which the at least one connector line and a duct seal, by means of which the connector opening is sealed. The duct seal is embodied with a glass body as a compression glass duct. The invention further relates to a heated expanding material working element for the operation of a thermostatic valve that includes a housing and a moving working rod extending from the housing.
摘要:
The invention relates to a heating system for a liquid conveyor system, particularly for a urea supply system of a catalytic converter of an internal combustion engine, comprising at least one first heater (4) for defrosting a liquid, and at least one filter heater (14) for heating a filter (5) for liquid filtering, wherein the filter heater (14) is formed by a heating section—designed as a resistance heating element—of an electrical connecting line (12) of the first heater (4).
摘要:
Expansion or elastic material working element, particularly for operating a thermostatic valve, having a housing and a movable working pin led out of the housing, the housing containing expansion material and a heating device with an electrical resistance element applied to a support. More particularly for increasing the response speed of such a device, according to the invention the support has a cavity and the resistance heating element is a heating conductor wound around the support.
摘要:
For the better handling of PTC components during the assembly of a corresponding heating arrangement, in the case of a holding part for PTC components with an insulating frame and at least one contact plate, a contact plate is firmly connected to the insulating frame (12).
摘要:
A sensor (1) for detecting frost deposits, particularly on evaporators of refrigeration plants or the like is proposed, in which between the spaced heat source (3) and heat sensor (4) is provided a thermal connection (2) made from a material, whose thermal conductivity coefficient is of the same order of magnitude as that of frost.