Pipe connection for conducting a fluid that is under pressure

US10514116B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Andreas Böttcher · Mettmann, DE
• Hartwig Dümler · Neunburg vorm Wald, DE
• Werner Hesse · Großburgwedel, DE
• Boris Ferdinand Kock · Ratingen, DE
• Patrick Lapp · Berlin, DE
• Lars Otte · Reinfeld, DE
• Falk Seidel · Hamminkeln, DE
• Philipp Stapper · Essen, DE
• Sascha Staring · Duisburg, DE
• Gerd Weber · Leichlingen, DE

Key dates

• Filing date: Oct 8, 2013
• Grant date: Dec 24, 2019
• Expiry date: Feb 25, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L59/181
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pipe connection for conducting a fluid that is under pressure is provided, having two tubular connection parts for a conical clamping connection, which are screwed together by a union nut while one is inserted in the other, wherein each connection part has a conical sealing surface that contacts the other in a sealing manner and wherein an annular groove is provided in one of the sealing surfaces. In order to enable the pipe connection also to conduct a fluid having cycling or varying temperature, the inner of the two connection parts has thermal insulation on the inside of the pipe at least in the axial segment of the sealing surface of the connection part, wherein the thermal insulation tube has a cam or a collar on the outer surface, which engages in a recess, which is axially bounded by the two connection parts.