Fluid metering device

US6311950A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Andreas Kappel · Höhenkirchen-Siegertsbrunn, DE
• Bernhard Fischer · Wien, AT
• Bernhard Gottlieb · Munich, DE
• Randolf Mock · Munich, DE
• Eric Chemisky · Haar, DE
• Hans Meixner · Haar, DE

Key dates

• Filing date: Apr 20, 2000
• Grant date: Nov 6, 2001
• Expiry date: Apr 20, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/16
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fluid metering device that employs a sealing element for delivering a metered dose of a pressurized fluid. The sealing element includes a metal bellows sealing element or metal bellows that attaches to a valve needle and a housing. The metal bellows includes a number of corrugated elements for sealingly guiding said valve needle as the valve needle moves to deliver the metered dose of pressurized fluid.