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

US10281068B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Andreas Böttcher · Mettmann, DE
• Hartwig Dümler · Neunburg vorm Wald, DE
• Werner Hesse · Großburgwedel, DE
• Patrick Lapp · Berlin, DE
• Joachim-Rene Nuding · Ratingen, DE
• Josef Rosenkranz · Simmerath, DE
• Sascha Staring · Duisburg, DE
• Changsheng Xu · Singapore, SG

Key dates

• Filing date: Aug 21, 2014
• Grant date: May 7, 2019
• Expiry date: Oct 1, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2250/232
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

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.