Siemens Aktiengesellschaft

Sascha Staring

Andreas Böttcher

Tobias Krieger

Andre Kluge

Patrick Lapp

Werner Hesse

Hartwig Dümler

Joachim-Rene Nuding

Falk Seidel

Gerd Weber

Boris Ferdinand Kock

Mariano Cano Wolff

Philipp Stapper

Josef Rosenkranz

Lars Otte

Changsheng Xu

Hartwig DÜMLER

Ulrich WÖRZ

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.

Pipe connection for conducting a fluid that is under pressure

A pipe connection arrangement in a high-pressure fluid line system of a dual fuel engine, having first pipe element with outer sealing cone and conical shoulder adjoining the cone, having further pipe element with inner sealing cone and external thread, having a screw nut element with clamping sleeve region having inner clamping cone and threaded sleeve region having internal thread. The outer sealing cone of the first pipe element is arranged in the inner sealing cone of the further pipe element and the internal thread of the screw nut element is screwed on the external thread of the further pipe element. The inner clamping cone of the screw nut element is pulled against the conical shoulder of the first pipe element such that the outer and inner sealing cones are clamped with one another in a sealing manner, wherein the threaded sleeve region of the screw nut element is conical.

Pipe connection arrangement, high-pressure fluid line system of a dual fuel engine, dual fuel engine and use of a tension nut

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Duisburg, Germany

Sascha Staring