Valve, valve stack, and component with valve and/or valve stack

US11913564B2 · kind B2 · utility

Assignee

• A. Kayser Automotive Systems GmbH · DE

Inventors

• Kenny Pagel · Dresden, DE
• Christoph Eppler · Dresden, DE
• Benjamin John · Jena, DE
• Heiko Freter · Einbeck, DE

Key dates

• Filing date: Oct 20, 2022
• Grant date: Feb 27, 2024
• Expiry date: Oct 24, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K27/0263
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A valve housing (1) has first and third openings (1.1, 1.3), and first and second actuating elements (6.1, 6.2) that are movable along a longitudinal axis of the housing (1). A return element (5) is between the actuating elements (6.1, 6.2), and exerts a force to keep the actuating elements (6.1, 6.2) in a rest position to close or open the first and third openings (1.1. 1.3). First and second wires (4.1, 4.2) are formed from a shape memory alloy. The first wire (4.1) is on the first actuating element (6.1) and the second wire (4.2) is on the second actuating element (6.2). An electric current to the first or second wire (4.1, 4.2) contracts the respective wire (4.1, 4.2) and moves the corresponding actuating element (6.1, 6.2) into an activated position against the force exerted by the return element (5).