ELECTROMAGNETIC VALVE

FIELD: engine manufacture; fuel injection systems of internal-combustion engines. SUBSTANCE: valve has at least one part, such as armature 27, whose surface is stepped to comply with optimal magnetic and hydraulic characteristics before wear-resistant coating is applied to it. Annular thrust section...

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Bibliographische Detailangaben
Hauptverfasser:	MARTIN MAJER, NORBERT KAJM, JORG KHEJZE, FERDINAND RAJTER
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING COMBUSTION ENGINES CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	FIELD: engine manufacture; fuel injection systems of internal-combustion engines. SUBSTANCE: valve has at least one part, such as armature 27, whose surface is stepped to comply with optimal magnetic and hydraulic characteristics before wear-resistant coating is applied to it. Annular thrust section 69 formed by step has definite width of thrust or contact surface b which is maintained throughout entire service period because wear of step surface upon long-time operation does not cause increase in contact width. EFFECT: improved mechanical endurance and almost constant pull-in and drop-out time of moving part. 8 cl, 5 dwg