Method for manfacturing an orifice plate

US5766441A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Stefan Arndt · Stuttgart, DE
• Dietmar Hahn · Gerlingen, DE
• Heinz Fuchs · Homberg (Efze), DE
• Gottfried Flik · Leonberg, DE
• Guenter Dantes · Eberdingen, DE
• Gilbert Moersch · Stuttgart, DE
• Detlef Nowak · Untergruppenbach, DE
• Joerg Heyse · Markgröningen, DE
• Beate Ader · Stuttgart, DE
• Frank Schatz · Kornwestheim, DE

Key dates

• Filing date: Nov 22, 1996
• Grant date: Jun 16, 1998
• Expiry date: Nov 22, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23H9/00
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A method for manufacturing an orifice plate that is built up in multiple layers and includes a complete axial through passage for a fluid. The orifice plate includes inlet openings, outlet openings, and at least one conduit lying between them. The layers or functional planes of the orifice plate are built up on one another by electroplating metal deposition (multilayer electroplating). Orifice plates manufactured in this manner are particularly suitable for use on injection valves in fuel injection systems, in paint nozzles, inhalers, or inkjet printers, or in freeze-drying processes, for spraying or injecting fluids such as beverages.