Valve for metering a fluid

US10519909B2 · 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 23, 2016
• Grant date: Dec 31, 2019
• Expiry date: Oct 19, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K31/0665
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fluid metering valve includes a valve-seat surface; a valve closing element that interacts with the valve-seat surface in order to form a sealing seat; an electromagnetic actuator; a valve needle used for operating the valve-closing element; an armature that is guided on the valve needle and is used for opening or closing the sealing seat; at least one stop that is disposed on, and stationary relative to, the valve needle and that restricts a movement of the armature on the valve needle; and at least one damping element that is configured to provide a damping during the opening or closing of the sealing seat, has a volume that is able to be filled with a fluid medium, is configured such that a fluid medium can be exchanged between the volume and an environment of the damping element, and is configured for volume changes of the volume in order to enable the damping.