Thermally volume-neutral stroke transmitter, in particular for metering valve without hydraulic compensator

US9587609B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Georg Bachmaier · Birkenfeld, DE
• Gerit Ebelsberger · Birkenfeld, DE
• Bernhard Fischer · Wien, AT
• Michael Hoge · Waukesha, US

Key dates

• Filing date: Jul 5, 2011
• Grant date: Mar 7, 2017
• Expiry date: May 9, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/707
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In addition to liquid in a thermal volume-neutral stroke transmitter, first and/or second displacement body(ies) is/are positioned in the stroke transmitter, for displacing the liquid. These three materials in the closed system are designed so that the stroke transmitter remains pressure-free during temperature changes.