Solenoid valve unit

US9091354B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft e.V. · DE

Inventors

• Dirk Schlenker · Stuttgart, DE
• Nabih Othman · Musberg, DE

Key dates

• Filing date: Mar 25, 2009
• Grant date: Jul 28, 2015
• Expiry date: Aug 6, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K31/084
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A solenoid valve unit is described for shutting off or enabling a throughflow of a medium along a hollow duct, which flows under application of pressure along the hollow duct, having at least one first magnet unit which is fixedly arranged along the hollow duct, which is implemented in the form of a hollow cylinder and is arranged in an axial section along the hollow duct in such a way that the first magnet unit radially completely surrounds the hollow duct and has a flow opening, which is circular in cross-section, on its downstream end, as well as a second magnet unit, which is mounted so it is movable to the first unit and is implemented as a ball, whose ball diameter is greater than the flow opening diameter of the first magnet unit and which, on account of an attractive magnetic force prevailing between both magnet units, can be brought into indirect or direct contact with the first magnet unit and seals the hollow duct in a fluid-tight manner, while the medium loads the first magnet unit under application of pressure opposite to the action direction of the magnetic force. A contour surface, which is angled in relation to a plane defined by the flow opening and surrounds the f…