Ignition device, particularly for an atomizer burner of a motor vehicle heating appliance

Abstract

An ignition device, in particular for an atomizer burner of a motor vehicle heating appliance, comprises a glow ignition member and screening material, which can take up fuel and which surrounds the glow ignition member at least over a region.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001] Not applicable.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002] Not applicable.[0003] 1. Background of the Invention[0004] The present invention relates to an ignition device, particularly for an atomizer burner of a motor vehicle heating appliance.[0005] 2. Technical Field[0006] In heating appliances, such as are used as so-called supplementary heaters or auxiliary heaters in motor vehicles, fuel is fed together with combustion air into a combustion chamber and is combusted there. The combustion is ignited by so-called spark gaps, such as also find application in heating burners in heating installations of buildings. The spark gaps provided for ignition, as used in particular in connection with so-called atomizer burners, in which the fuel to be burned is injected together with the combustion air at high speed and thus atomized, are comparatively expensive and thus represent a not inconsiderable cost factor, partic...

AI Technical Summary

Benefits of technology

[0012] When the screening material is arranged spaced from the glow ignition member at least in a region, an atmosphere whose flow is calmed down can be produced in the space region between the screening material and the glow ignition member, and can very easily be ignited by the glow ignition member.

[0013] In a further embodiment of the ignition device according to the invention, it can be provided that the glow ignition member is carried by a support arrangement and that screening material is arranged spaced from the support arrangement at least in a region. By this measure, heat transfer from the screening material to the support arrangement is made difficult, so that the ignition efficiency of the ignition device according to the invention can be further improved.

Problems solved by technology

This was heretofore not possible, since the removal of heat from a glow ignition member was very great due to the flow speed of the materials injected into the combustion chamber in the case of atomizer burners, so that the glow ignition member could no longer produce, even in its immediate neighborhood, the temperature required for the ignition of the combustion materials.

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