Electromagnetically operable valve device

US10837573B2 · kind B2 · utility

Assignee

• ETO MAGNETIC GMBH · DE

Inventors

• Oliver Thode · Stockach, DE
• Viktor Raff · Konstanz, DE

Key dates

• Filing date: Mar 30, 2017
• Grant date: Nov 17, 2020
• Expiry date: Aug 5, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K31/0675
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention relates to an electromagnetically operable valve device, comprising a valve housing (10) which has a first fluid connection (P) and a second fluid connection (E), each designed for controlled opening and closing by moving a closure unit (30), and at least one further fluid connection (A) provided on the valve housing, which forms a fluid channel (46) to the first or second fluid connection that can be intermittently interrupted by the closure unit. The closure unit is provided on or in an armature unit (28), which is movably guided in the valve housing along a longitudinal axis of movement (12), and which can be driven in response to the energization of a coil unit (14, 16) provided in a stationary manner in the valve housing, and which is movable between mutually opposite first and second closure positions, is designed for magnetically interacting with a stationary core unit (18) that is at least partially surrounded by the coil unit, and is biased into one of the closure positions by means of force storage means, in particular a spring (48), which acts on the armature unit, wherein the first of the closure positions is realized by a valve seat (44) connected to the …