Butterfly valve with injection-molded shaft

US6901942B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Erwin Krimmer · Plüderhausen, DE
• Peter Baur · Monsheim, DE
• Christian Lorenz · Hamburg, DE
• Bruno Hezel · Stuttgart, DE
• Hubert Hickl · Waiblingen, DE

Key dates

• Filing date: Jun 11, 2003
• Grant date: Jun 7, 2005
• Expiry date: Jun 11, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/6048
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for producing a throttle valve unit for installation into a flow conduit through which a gas flow passes. A flap shaft of the throttle valve unit is affixed to a stamped insert part inside a fastening region. The stamped insert part, which includes an insert border, is molded into a housing. At the same time as the stamped insert part is molded into the housing, the flap shaft affixed to the stamped insert part is molded-in inside the fastening region. A planar region of the stamped insert part connected to the flap shaft is cut out from this stamped insert part.