Upper valve part

US5242148A · kind A · utility

Assignee

• Fluhs Drehtechnik GmbH · DE

Inventors

• Peter Lange · Eppstein, DE
• Helmut Ziebach · Breitscheid, DE

Key dates

• Filing date: Apr 9, 1992
• Grant date: Sep 7, 1993
• Expiry date: Apr 9, 2012

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K27/02
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An axially movable valve piston (3) and a rotatable spindle (2), which are connected with one another via a thread (24; 32), are guided in a headpiece (1). A sealing ring (5), which projects beyond the end face of the headpiece (1) facing the suppy duct, is held by the headpiece (1). The sealing ring (5) is designed on the projecting outer end face as a surface (54) for resting against a valve seat (62) and on the opposite inner end face as a lip seal (52) cooperating with the valve piston (3). In its section cooperating with the lip seal (52), the valve piston (3) is designed in a flat and seal-free manner.