Proportional valve

US10634257B2 · kind B2 · utility

Assignee

• HOERBIGER FLOW CONTROL GMBH · DE

Inventors

• Marcus Grödl · Altdorf, DE
• Jochen Schaible · Altensteig, DE
• Daniel HALLER · Stuttgart, DE
• Max Schrobenhauser · Peiting, DE
• Collin Dymel · Stuttgart, DE
• Benedikt Hildebrandt · Echterdingen, DE
• Györg Molnar · Waldenbuch, DE
• Sebastian NEISS · Stuttgart, DE

Key dates

• Filing date: Aug 10, 2018
• Grant date: Apr 28, 2020
• Expiry date: Sep 29, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87225
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A proportional valve is provided wherein the valve has an actuating element, a compressed-air connection, a working connection, and an air-removal connection. The valve also has three valve elements arranged one after the other and each can be moved in an axial direction. A first valve element is actuated by the actuating element, a second valve element is actuated by the first valve element, and a third valve element is actuated by the second valve element. In a base position, the valve elements are spaced apart, and, within the valve, a first sealing seat effective between the first valve element and the second valve element and a second sealing seat effective between the third valve element and the housing are arranged such that by varying the position of the first valve element, different switching states can be set.