Electromagnetically operating actuator

US4455543A · kind A · utility

Assignee

• Franz Pischinger · DE

Inventors

• Franz Pischinger · Aachen, DE
• Peter Kreuter · Aachen, DE

Key dates

• Filing date: Jun 29, 1981
• Grant date: Jun 19, 1984
• Expiry date: Jun 29, 2001

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L9/20
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An electromagnetically operating actuator for control elements capable of making oscillatory movements in displacement machines, more particularly for flat slide shut-off valves and lift valves, includes a spring system and a pair of electrically operating switching elements, over which the control element is movable in two discrete opposite operating positions and is retained thereat by either switching magnet, the locus of the position of equilibrium of the spring system lying between the two operating positions. The invention is characterized by the provision of a compression device in engagement with the spring system for relocating the locus of the position of equilibrium of the spring system upon actuation of the compression device.