Valve for metering a fluid

US10711750B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Andreas Schaad · Bruchsal, DE
• Joerg Abel · Gerlingen, DE
• Juergen Maier · Weitersweiler, DE
• Martin Buehner · Backnang, DE
• Matthias Boee · Ludwigsburg, DE
• Olaf Schoenrock · Schwieberdingen, DE
• Philipp Rogler · Stuttgart, DE
• Stefan Cerny · Bietigheim-Bissingen, DE

Key dates

• Filing date: Jun 21, 2017
• Grant date: Jul 14, 2020
• Expiry date: Jun 21, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/304
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A valve for metering a fluid. An armature of the electromagnetic actuator is movable along a longitudinal axis of a valve needle, the movement of the armature relative to the valve needle being limited by a stop surface on the valve needle. The armature has a passage channel. The stop surface is on a stop element. The stop element and the armature are such that during operation there always remains an intermediate space, adjoining the valve needle, between the stop element and an end face of the armature facing the stop element. The stop surface lies, in a contact region, on the end surface of the armature facing the stop element when the armature and the stop surface come into contact during operation, the contact region being situated between the intermediate space and an opening of the passage channel when the armature and the stop surface come into contact.