Solenoid valve

US8596609B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Klaus Heyer · Freiberg, DE
• Massimiliano Ambrosi · Erbach, DE
• Michael Eisenlauer · Marbach am Neckar, DE
• Michael Rietsche · Ringsheim, DE
• Michael Tischer · Abstatt, DE
• Stephan Steingass · Bornheim, DE
• Michael Hilden · Löwenstein, DE

Key dates

• Filing date: Jul 2, 2008
• Grant date: Dec 3, 2013
• Expiry date: Mar 3, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K31/0655
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a solenoid valve with a magnet assembly and a valve cartridge having a pole core, a valve insert connected to the pole core, an armature which is guided within the valve insert in an axially movable manner between a closed position and an open position and is coupled to a closing element, and a valve body which is connected to the valve insert and has a main valve seat which is arranged between at least one first flow opening and a second flow opening. The axially movable armature, when the magnet assembly is energized, is moved by a generated magnetic force within the valve insert in the direction of the pole core counter to a spring force of a resetting spring and counter to a fluid force in order to lift the closing element out of the main valve seat; and to permit a flow of fluid between the at least one first flow opening and the second flow opening. The axially movable armature is moved away from the pole core by the spring force of the restoring spring and by the fluid force within the valve insert in order to press the closing element into the main valve seat in a sealing manner and to interrupt the fluid flow between the at least one first flow ope…