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EP0045530A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Fuel injector valve for combustion engines

Assignee: Robert Bosch GmbH
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Filing: 1981-04-03
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Granted: —
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Expires: 2001-04-03
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Abstract

Abstract Translated from German Es wird ein Kraftstoff-Einspritzventil für Brennkraftmaschinen vorgeschlagen, dessen Ventilnadel (15) mit dem Ventilsitz (16) des Düsenkörpers (12) einen elektrischen Schalter (16, 17) bilden, der durch Öffnen und Schließen den Spritzbeginn und die Spritzdauer anzeigt. Auf dem stählernen Nadelschaft (18) ist eine Aluminium-Hülse (60) unlösbar befestigt, deren Außenmantel eine Aluminium-Oxidschicht (61) trägt; diese ist mittels anodischer Oxidation hergestellt. A fuel injection valve for internal combustion engines is proposed, the valve needle (15) of which forms an electrical switch (16, 17) with the valve seat (16) of the nozzle body (12), which indicates the start and duration of the spray by opening and closing. An aluminum sleeve (60) is permanently attached to the steel needle shaft (18), the outer jacket of which carries an aluminum oxide layer (61); this is produced by means of anodic oxidation.

Inventors

  • 👤 Karl Hofmann

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 18:56
CPC Classifications
F; F02; F02M; F02M65/00; F02M65/005

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