Fuel injection nozzle for internal combustion engines

US4362050A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gerhard Stumpp · Stuttgart, DE
• Ewald Eblen · Stuttgart, DE
• Karl Hofmann · Neckarrems, DE
• Odon Kopse · Stuttgart, DE
• Nestor R. Amaya · Stuttgart, DE
• Josef Schlagenhauf · Eßlingen, DE
• Johannes Locher · Stuttgart, DE

Key dates

• Filing date: Jul 8, 1980
• Grant date: Dec 7, 1982
• Expiry date: Jul 8, 2000

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B3/06
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fuel injection nozzle is proposed, intended in particular for Diesel engines, in which an induction coil is installed in an intermediate disc. The coil core is embodied by a pressure element and a valve needle in force-locking contact therewith. An annular permanent magnet is secured either on the pressure bolt or on the intermediate plate. This embodiment of an injection nozzle, as a so-called needle stroke transducer, is used when it is desired to ascertain the duration of injection and especially the onset of injection.